|
Breakout Game
|
This class sets up a full graphics program. More...
#include <GraphicProgram.hpp>
Public Member Functions | |
| GraphicProgram (int w, int h) | |
| Constructor. More... | |
| ~GraphicProgram () | |
| Desctructor. More... | |
| void | update () |
| Per frame update. More... | |
| void | render () |
| Renders shapes to the screen. More... | |
| void | renderNextLevel () |
| Renders next level page. More... | |
| void | renderWelcome () |
| Renders welcome page. More... | |
| void | renderWin () |
| Renders win page. More... | |
| void | loop () |
| loop that runs forever More... | |
| SDL_Window * | getSDLWindow () |
| Get Pointer to Window. More... | |
| SDL_Renderer * | getSDLRenderer () |
| Get Pointer to Renderer. More... | |
This class sets up a full graphics program.
| GraphicProgram::GraphicProgram | ( | int | w, |
| int | h | ||
| ) |
Constructor.
Initialize random number generation.
Initialization flag
String to hold any errors that occur.
The window we'll be rendering to
Render flag
Initialize SDL
Create window
Check if Window did not create.
Create a Renderer to draw on
Check if Renderer did not create.
Initialize the TTF
Initialize the SDL_image
Initialize the SDL_mixer
Get the instance of the ResourceManager
Initialize the instance
| GraphicProgram::~GraphicProgram | ( | ) |
Desctructor.
Destroy Renderer
Destroy window
Point gWindow to NULL to ensure it points to nothing.
Quit SDL subsystems
| SDL_Renderer * GraphicProgram::getSDLRenderer | ( | ) |
Get Pointer to Renderer.
| SDL_Window * GraphicProgram::getSDLWindow | ( | ) |
Get Pointer to Window.
| void GraphicProgram::loop | ( | ) |
loop that runs forever
Main loop flag If this is quit = 'true' then the program terminates.
Language loop flag
Loop entil the language has been chosen
After the language has been set, all other static textures can be load here
Event handler that handles various events in SDL that are related to input and output
Enable text input
While application is running
Handle events on queue
User posts an event to quit An example is hitting the "x" in the corner of the window.
Restart the game logic after winning
Start the game after small setback
Try the game again after lost the game
If all levels have been cleared, and not space has been pressed, exit
frame capping.
Update our scene
cleared out the level
Already won
Game still going
Frame Capping
Update screen of our specified window
Disable text input
| void GraphicProgram::render | ( | ) |
Renders shapes to the screen.
Use the RenderHelper to make the process easier and more readable
| void GraphicProgram::renderNextLevel | ( | ) |
Renders next level page.
Indicating that current level has been cleared, showing the page for next level
Freeze the game, so that the player can linger and absorb the information
| void GraphicProgram::renderWelcome | ( | ) |
Renders welcome page.
First page that the player would see, including language selection
| void GraphicProgram::renderWin | ( | ) |
Renders win page.
Render the win page, not clearing everything out but to stay at original page with additional information
| void GraphicProgram::update | ( | ) |


C/C++ Project Properties, C/C++ Build
This page serves as the main window that contains all builder-specific property pages. In addition, directly from this window you can define preferences for the Builder settings and Behaviour properties.
Note: Modifying some settings, such as the Generate makefiles automatically option, might affect other parameters (setting them from enabled to disabled in some situations) and, moreover, change the visibility of other property pages.
| Option | Description |
|---|---|
| Configuration | Click here for its description. |
| Manage configurations | Click here for its description. |
| Builder type | Specifies the type of builder to use: Internal builder (builds C/C++ programs using a compiler that implements the C/C++ Language Specification) and External builder (external tools let you configure and run programs and Ant buildfiles using the Workbench, which can saved and run at a later time to perform a build). |
| Use default build command | When enabled, this option indicates that you want to use the default make command. When disabled, it indicates the use of a new make command. This option is only available when the Build type option is set to External. |
| Build command | Specifies the default command used to start the build utility for your specific toolchain. Use this field if you want to use a build utility other than the default make command (when the Use default build command is not selected the field is active, and when you use an external builder or a custom makefile, you can provide your specific commands). |
| Variables | Opens the Select build variable dialog where you can add environment variables and custom variables to the build command.
|
| Generate Makefiles automatically | When selected, Eclipse changes between two different CDT modes: it either uses the customer's makefile for the build (referred to as a 'Standard Make project' in CDT 3.x) if one exists, or it generate makefiles for the user (called 'Managed build project' in CDT 3.x). By default, this option is automatically set. |
| Expand Env. Variable Refs in Makefiles | Defines whether environment variables ( ${xxx} ) should be expanded in makefile. By default, this option is automatically set. |
| Build directory | Defines the location where the build operation takes place. This location will contain the generated artifacts from the build process. This option is disabled when the Generate Makefiles automatically option is enabled. |
| Workspace | Opens the Folder Selection dialog where you can select a workspace location for the project. This is the directory that will contain the plug-ins and features to build, including any generated artifacts. This button is only visible when Generate makefiles automatically is set not selected. |
| File system | Opens the file system navigator where you can specify another file system to use. This button is only visible when Generate makefiles automatically is set not selected. |
| Variables | Opens the Select build variable dialog where you can select a variable to specify as an argument for the build directory, or create and configure simple build variables which you can reference in build configurations that support variables. This button is only visible when Generate makefiles automatically is set not selected. |
| Option | Description |
|---|---|
| Stop on first build error | Stops building when Eclipse encounters an error.
Note: If this option is not selected, it is helpful for building large projects because it tells make to continue making other independent rules even when one rule fails. |
| Use parallel build | When enabled, this option indicates the activation of the generation of parallel builds.
If you enable this option, you need to determine the number of parallel jobs to perform:
|
| Workbench build behavior | By default, the following settings are what the builder uses when instructed to build, rebuild, clean, and so on. You can change these settings so that new projects can use different targets if these defaults are not appropriate. |
| Build on resource save (Auto build) | When selected, builds your project whenever resources are saved. By default, this option is selected and builds occur automatically each time resources are modified. When this option is not selected, a build occurs only manually using a menu item. If you require more control over when builds occur (for example, when a build should wait until you finish a large assortment of changes), disable this option and manually invoke builds yourself. |
| make build target ( for Build on resource save (Auto build)) | To build your project when resources are saved and change the default make build target, enable the Build on resource save (Auto Build) option, and specify a new build target in the Make build target field. |
| Variables | Opens the Select build variable dialog where you can add variables to the build command. |
| Build (Incremental build) | Defines what the builder calls when an incremental build is performed. When this option is enabled, an incremental build occurs meaning that only resources that have changed since the last build are considered. If this option is disabled, a full build occurs, meaning that all resources within the scope of the build are considered. |
| make build target (for Build (Incremental build)) | To change the build default make build target, enable the Build (Incremental build) option, and specify a new build target in the Make build target field. |
| Variables | Opens the Select build variable dialog where you can add variables to the make build target command. |
| Clean | Defines what the builder calls when a clean is performed. The make clean is defined in the makefile. |
| make build target (for Clean) | To change the rebuild default make build target, enable the Clean option, and specify a new build target in the Make build target field. |
| Variables | Opens the Select build variable dialog where you can add variables to the make build target command. |
- Project Properties, Resource page
- Project Properties, Builders page
- Project Properties, C/C++ Build category
- Project Properties, C/C++ General category
- C/C++ Project Properties, Project References page
- C/C++ Project Properties, Refactoring History page
- C/C++ Project Properties, Run/Debug Settings page


Features
- BSON Library
- A standalone BSON library, with a new Codec infrastructure that you can
use to build high-performance encoders and decoders without requiring an
intermediate Map instance.
- MongoDB Driver
- An updated Java driver that includes the legacy API as well as a new generic MongoCollection interface that complies with a new cross-driver CRUD specification.
- MongoDB Async Driver
- A callback-based asynchronous driver. Note that this driver is now deprecated in favor of the
Reactive Streams Java Driver


Before Change
// adjust shape for proper broadcasting later on
for _ in itertools.repeat(None, axis):
isolated_axis = np.expand_dims(isolated_axis, axis=1)
for _ in itertools.repeat(None, ndim - (axis + 1)):
isolated_axis = np.expand_dims(isolated_axis, axis=-1)
// calculate the moments for each point, one axis at a time
calc = calc * isolated_axis
// sum all individual point moments to get our final answer
calc = calc.sum(axis=0)
After Change
isolated_axis = coords[:, axis::ndim].squeeze(axis=1)
// rotate orientation of matrix for proper broadcasting
isolated_axis = np.moveaxis(isolated_axis, 1, 1 + axis)
// calculate the moments for each point, one axis at a time
calc = calc * isolated_axis


{% if filtered_cafes %}
{% include 'home/include/cafe_item.html' with cafes=filtered_cafes %}
{% elif search_results %}
{% include 'home/include/cafe_item.html' with cafes=search_results %}
{% else %}
{% include 'home/include/cafe_item.html' with cafes=cafes %}
{% endif %}
{% include 'home/include/page_nav.html' with pages=cafes %}


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ALTER OPERATOR FAMILY
Section: SQL Commands (7)Updated: 2012-08-14
Index Return to Main Contents
NAME
ALTER OPERATOR FAMILY - change the definition of an operator familySYNOPSIS
ALTER OPERATOR FAMILY name USING index_method ADD { OPERATOR strategy_number operator_name ( op_type, op_type ) | FUNCTION support_number [ ( op_type [ , op_type ] ) ] funcname ( argument_type [, ...] ) } [, ... ] ALTER OPERATOR FAMILY name USING index_method DROP { OPERATOR strategy_number ( op_type [ , op_type ] ) | FUNCTION support_number ( op_type [ , op_type ] ) } [, ... ] ALTER OPERATOR FAMILY name USING index_method RENAME TO newname ALTER OPERATOR FAMILY name USING index_method OWNER TO newowner
DESCRIPTION
ALTER OPERATOR FAMILY changes the definition of an operator family. You can add operators and support functions to the family, remove them from the family, or change the family's name or owner.
When operators and support functions are added to a family with ALTER OPERATOR FAMILY, they are not part of any specific operator class within the family, but are just ``loose'' within the family. This indicates that these operators and functions are compatible with the family's semantics, but are not required for correct functioning of any specific index. (Operators and functions that are so required should be declared as part of an operator class, instead; see CREATE OPERATOR CLASS [create_operator_class(7)].) PostgreSQL will allow loose members of a family to be dropped from the family at any time, but members of an operator class cannot be dropped without dropping the whole class and any indexes that depend on it. Typically, single-data-type operators and functions are part of operator classes because they are needed to support an index on that specific data type, while cross-data-type operators and functions are made loose members of the family.
You must be a superuser to use ALTER OPERATOR FAMILY. (This restriction is made because an erroneous operator family definition could confuse or even crash the server.)
ALTER OPERATOR FAMILY does not presently check whether the operator family definition includes all the operators and functions required by the index method, nor whether the operators and functions form a self-consistent set. It is the user's responsibility to define a valid operator family.
Refer to in the documentation for further information.
PARAMETERS
- name
- The name (optionally schema-qualified) of an existing operator family.
- index_method
- The name of the index method this operator family is for.
- strategy_number
- The index method's strategy number for an operator associated with the operator family.
- operator_name
- The name (optionally schema-qualified) of an operator associated with the operator family.
- op_type
-
In an OPERATOR clause,
the operand data type(s) of the operator, or NONE to
signify a left-unary or right-unary operator. Unlike the comparable
syntax in CREATE OPERATOR CLASS, the operand data types
must always be specified.
In an ADD FUNCTION clause, the operand data type(s) the function is intended to support, if different from the input data type(s) of the function. For B-tree and hash indexes it is not necessary to specify op_type since the function's input data type(s) are always the correct ones to use. For GIN and GiST indexes it is necessary to specify the input data type the function is to be used with.
In a DROP FUNCTION clause, the operand data type(s) the function is intended to support must be specified.
- support_number
- The index method's support procedure number for a function associated with the operator family.
- funcname
- The name (optionally schema-qualified) of a function that is an index method support procedure for the operator family.
- argument_types
- The parameter data type(s) of the function.
- newname
- The new name of the operator family.
- newowner
- The new owner of the operator family.
The OPERATOR and FUNCTION clauses can appear in any order.
NOTES
Notice that the DROP syntax only specifies the ``slot'' in the operator family, by strategy or support number and input data type(s). The name of the operator or function occupying the slot is not mentioned. Also, for DROP FUNCTION the type(s) to specify are the input data type(s) the function is intended to support; for GIN and GiST indexes this might have nothing to do with the actual input argument types of the function.
Because the index machinery does not check access permissions on functions before using them, including a function or operator in an operator family is tantamount to granting public execute permission on it. This is usually not an issue for the sorts of functions that are useful in an operator family.
The operators should not be defined by SQL functions. A SQL function is likely to be inlined into the calling query, which will prevent the optimizer from recognizing that the query matches an index.
Before PostgreSQL 8.4, the OPERATOR clause could include a RECHECK option. This is no longer supported because whether an index operator is ``lossy'' is now determined on-the-fly at runtime. This allows efficient handling of cases where an operator might or might not be lossy.
EXAMPLES
The following example command adds cross-data-type operators and support functions to an operator family that already contains B-tree operator classes for data types int4 and int2.
ALTER OPERATOR FAMILY integer_ops USING btree ADD -- int4 vs int2 OPERATOR 1 < (int4, int2) , OPERATOR 2 <= (int4, int2) , OPERATOR 3 = (int4, int2) , OPERATOR 4 >= (int4, int2) , OPERATOR 5 > (int4, int2) , FUNCTION 1 btint42cmp(int4, int2) , -- int2 vs int4 OPERATOR 1 < (int2, int4) , OPERATOR 2 <= (int2, int4) , OPERATOR 3 = (int2, int4) , OPERATOR 4 >= (int2, int4) , OPERATOR 5 > (int2, int4) , FUNCTION 1 btint24cmp(int2, int4) ;
To remove these entries again:
ALTER OPERATOR FAMILY integer_ops USING btree DROP -- int4 vs int2 OPERATOR 1 (int4, int2) , OPERATOR 2 (int4, int2) , OPERATOR 3 (int4, int2) , OPERATOR 4 (int4, int2) , OPERATOR 5 (int4, int2) , FUNCTION 1 (int4, int2) , -- int2 vs int4 OPERATOR 1 (int2, int4) , OPERATOR 2 (int2, int4) , OPERATOR 3 (int2, int4) , OPERATOR 4 (int2, int4) , OPERATOR 5 (int2, int4) , FUNCTION 1 (int2, int4) ;
COMPATIBILITY
There is no ALTER OPERATOR FAMILY statement in the SQL standard.
SEE ALSO
CREATE OPERATOR FAMILY [create_operator_family(7)], DROP OPERATOR FAMILY [drop_operator_family(7)], CREATE OPERATOR CLASS [create_operator_class(7)], ALTER OPERATOR CLASS [alter_operator_class(7)], DROP OPERATOR CLASS [drop_operator_class(7)]
Index
This document was created by man2html, using the manual pages.
Time: 05:34:14 GMT, December 24, 2015


@classmethod
def load(cls, db_path, db_type):
raise NotImplementedError
def load(cls, db_path, db_type, *args, **kwargs):
ws = Workspace()
with ws._ctx:
net = prepare_prediction_net(db_path, db_type)
// TODO: reconstruct pem if so the predictor can be saved back
return cls(pem=None, ws=ws, predict_net=net)


CURRENT PROGRAM:
Computer Software Engineering Technology
CURRENT SEMESTER:
Fall 2017
ENROLLED CREDIT HOURS:
15
ACADEMIC STANDING:
Good
UPCOMING COURSES:
Semester:
Spring 2018
Course Registration Completion:
50%
Core Program Courses:
CSET 155
Database Design
CSET 160
Web Development II
Course Registration Completion:
60%
General Education


git-scp
- Copy files to SSH compatible git-remote
`git scp` -h|help|?
`git scp` <remote> [<commits>...|<path>...]
`git rscp` <remote> <path>
A convenient way to copy files from the current working tree to the working directory of a remote repository. If a <commits>...
is provided, only files that has changed within the commit range will be copied.
Internally this script uses rsync
and not scp
as the name suggests.
git-rscp
- The reverse of git-scp
. Copies specific files from the working directory of a remote repository to the current working directory.
<remote>
The git remote where you want to copy your files.
<commits>...
Any commit, commit range or tree. Uses `git-diff`(1)
<path>...
The <paths> parameters, when given, are used to limit the diff to the named paths (you can give directory names and get diff for all files under them).
To sanitize files using dos2unix
before copying files
$ git config --global --add extras.scp.sanitize dos2unix
You can run the files through PHP lint (i.e. php -l
) before copying files
$ git config --global --add extras.scp.sanitize php_lint
Make sure you have git-remote
(1) setup
$ git remote add staging myStagingServer:/var/www/html
Copy unstaged files to remote. Useful when you want to make quick test without making any commits
$ git scp staging
Copy staged and unstaged files to remote
$ git scp staging HEAD
Copy files that has been changed in the last commit, plus any staged or unstaged files to remote
$ git scp staging HEAD~1
Copy files that has been changed between now and a tag
$ git scp staging v1.2.3
Copy specific files
$ git scp staging index.html .gitignore .htaccess
Copy specific directory
$ git scp staging js/vendor/
Copy files from specific directory to multiple servers
$ for dest in web1 web2 web3; do
git diff --name-only 4.8.3 4.8.2 app/code/community app/design skin/ | xargs git scp $dest
done;
Written by Chern Jie<EMAIL_ADDRESS><https://github.com/chernjie/git-extras/issues>
<https://github.com/tj/git-extras>


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Tilegarden is a serverless tileserver built for AWS Lambda. All the power of a conventional tileserver without needing to worry about provisioning, scaling, or uptime costs. Click below for demos of Tilegarden's functionality.


You can use this page to set up, change, or disable some features of CoursesPlus.
If you're signed in to Chrome, your options are synced across computers.
Your changes are automatically saved.
Themes are groups of pre-made settings you can apply to Courses. They change things like buttons, navigation bars, and other elements.
If you find an error or bug with a theme, please email<EMAIL_ADDRESS>Services allow CoursesPlus to connect Courses with other websites you use every day.
Have an idea for a great new service - or any other feature you'd like to see? Send us an email at<EMAIL_ADDRESS>Using sync storage - if you sign into Chrome on more than one computer, your CoursesPlus settings will sync between them!
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If you have the Navbar messages feature enabled, CoursesPlus will connect to a server so it can retrieve the newest message. When it does this, information about what browser version you have, what version of CoursesPlus you have, and a random, unique ID is transmitted to the server. No personally-identifying information is sent. To disable this tracking, disable the Navbar messages component.
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CoursesPlus is open source software licensed under the MIT License.
CoursesPlus makes use of the following open-source projects:
We would also like to thank the following people


Save the Internet Act of 2019 📡
Ryan takes us on a quick dive back into the world of Net Neutrality. We’ll discuss the Save the Internet Act of 2019 and what it intends to accomplish.
Resources and Shoutouts:
- Text of Save the Internet Act of 2019
- University of Maryland Public Policy School Poll
- Civic Tech Chat Episode 17
Music Credit: Tumbleweeds by Monkey Warhol
Previous Feb 14, 2019
« Humane Technology with Genevieve Gaudet 🙋🏽 🙋🏽♂
« Humane Technology with Genevieve Gaudet 🙋🏽 🙋🏽♂
Apr 12, 2019 Next
Civic Tech Year in Review 💻⚖⌛ »
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{% include 'partials/header.html' %} {% ifequal userType 'P' %}
Add new Question
Question code: {{question.QCode}}
Check


Ansible is an IT automation tool. It can configure systems, deploy software, and orchestrate more advanced IT tasks such as continuous deployments or zero downtime rolling updates.
TiDB-Ansible is a TiDB cluster deployment tool developed by PingCAP, based on Ansible playbook. TiDB-Ansible enables you to quickly deploy a new TiDB cluster which includes PD, TiDB, TiKV, and the cluster monitoring modules.
You can use the TiDB-Ansible configuration file to set up the cluster topology, completing all operation tasks with one click, including:
Before you start, make sure that you have:
Several target machines with the following requirements:
4 or more machines. At least 3 instances for TiKV. Do not deploy TiKV together with TiDB or PD on the same machine. See Software and Hardware Requirements.
Recommended Operating system:
Use ext4 filesystem for your data disks. Mount ext4 filesystem with the nodelalloc
mount option. See Mount the data disk ext4 filesystem with options.
The network between machines. Turn off the firewalls and iptables when deploying and turn them on after the deployment.
The same time and time zone for all machines with the NTP service on to synchronize the correct time. See How to check whether the NTP service is normal.
Create a normal tidb
user account as the user who runs the service. The tidb
user can sudo to the root user without a password. See How to configure SSH mutual trust and sudo without password.
> Note: When you deploy TiDB using Ansible, use SSD disks for the data directory of TiKV and PD nodes.
A Control Machine with the following requirements:
ssh authorized_key
. In the Control Machine, you can login to the deployment target machine using tidb
user account without a password. See How to configure SSH mutual trust and sudo without password.Use the following method to install Ansible on the Control Machine of CentOS 7 system. Installation from the EPEL source includes Ansible dependencies automatically (such as Jinja2==2.7.2 MarkupSafe==0.11
). After installation, you can view the version using ansible --version
.
Note: Make sure that the Ansible version is Ansible 2.4 or later, otherwise a compatibility issue occurs.
# yum install epel-release
# yum install ansible curl
# ansible --version
ansible <IP_ADDRESS>
For other systems, see Install Ansible.
Login to the Control Machine using the tidb
user account and enter the /home/tidb
directory. Use the following command to download the corresponding version of TiDB-Ansible from GitHub TiDB-Ansible project. The default folder name is tidb-ansible
.
Download the 1.0 version:
cd /home/tidb
git clone -b release-1.0 https://github.com/pingcap/tidb-ansible.git
or
Download the master version:
cd /home/tidb
git clone https://github.com/pingcap/tidb-ansible.git
Note: For the production environment, download the 1.0 version to deploy TiDB.
The file path of inventory.ini
: tidb-ansible/inventory.ini
The standard cluster has 6 machines:
| Name | Host IP | Services |
|---|---|---|
| node1 | <IP_ADDRESS> | PD1, TiDB1 |
| node2 | <IP_ADDRESS> | PD2, TiDB2 |
| node3 | <IP_ADDRESS> | PD3 |
| node4 | <IP_ADDRESS> | TiKV1 |
| node5 | <IP_ADDRESS> | TiKV2 |
| node6 | <IP_ADDRESS> | TiKV3 |
[tidb_servers]
<IP_ADDRESS>
<IP_ADDRESS>
[pd_servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
[tikv_servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
[monitoring_servers]
<IP_ADDRESS>
[grafana_servers]
<IP_ADDRESS>
[monitored_servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
Take two TiKV instances as an example:
| Name | Host IP | Services |
|---|---|---|
| node1 | <IP_ADDRESS> | PD1, TiDB1 |
| node2 | <IP_ADDRESS> | PD2, TiDB2 |
| node3 | <IP_ADDRESS> | PD3 |
| node4 | <IP_ADDRESS> | TiKV1-1, TiKV1-2 |
| node5 | <IP_ADDRESS> | TiKV2-1, TiKV2-2 |
| node6 | <IP_ADDRESS> | TiKV3-1, TiKV3-2 |
[tidb_servers]
<IP_ADDRESS>
<IP_ADDRESS>
[pd_servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
[tikv_servers]
TiKV1-1 ansible_host=<IP_ADDRESS> deploy_dir=/data1/deploy tikv_port=20171 labels="host=tikv1"
TiKV1-2 ansible_host=<IP_ADDRESS> deploy_dir=/data2/deploy tikv_port=20172 labels="host=tikv1"
TiKV1-3 ansible_host=<IP_ADDRESS> deploy_dir=/data3/deploy tikv_port=20173 labels="host=tikv1"
TiKV2-1 ansible_host=<IP_ADDRESS> deploy_dir=/data1/deploy tikv_port=20171 labels="host=tikv2"
TiKV2-2 ansible_host=<IP_ADDRESS> deploy_dir=/data2/deploy tikv_port=20172 labels="host=tikv2"
TiKV2-3 ansible_host=<IP_ADDRESS> deploy_dir=/data3/deploy tikv_port=20173 labels="host=tikv2"
TiKV3-1 ansible_host=<IP_ADDRESS> deploy_dir=/data1/deploy tikv_port=20171 labels="host=tikv3"
TiKV3-2 ansible_host=<IP_ADDRESS> deploy_dir=/data2/deploy tikv_port=20172 labels="host=tikv3"
TiKV3-3 ansible_host=<IP_ADDRESS> deploy_dir=/data3/deploy tikv_port=20173 labels="host=tikv3"
[monitoring_servers]
<IP_ADDRESS>
[grafana_servers]
<IP_ADDRESS>
[monitored_servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
......
[pd_servers:vars]
location_labels = ["host"]
Edit the parameters in the service configuration file:
For multiple TiKV instances, edit the end-point-concurrency
and block-cache-size
parameters in tidb-ansible/conf/tikv.yml
:
end-point-concurrency
: keep the number lower than CPU Vcoresrocksdb defaultcf block-cache-size(GB)
: MEM * 80% / TiKV instance number * 30%rocksdb writecf block-cache-size(GB)
: MEM * 80% / TiKV instance number * 45%rocksdb lockcf block-cache-size(GB)
: MEM * 80% / TiKV instance number * 2.5% (128 MB at a minimum)raftdb defaultcf block-cache-size(GB)
: MEM * 80% / TiKV instance number * 2.5% (128 MB at a minimum)If multiple TiKV instances are deployed on a same physical disk, edit the capacity
parameter in conf/tikv.yml
:
capacity
: (DISK - log space) / TiKV instance number (the unit is GB)You can configure the deployment directory using the deploy_dir
variable. The global variable is set to /home/tidb/deploy
by default, and it applies to all services. If the data disk is mounted on the /data1
directory, you can set it to /data1/deploy
. For example:
## Global variables
[all:vars]
deploy_dir = /data1/deploy
To set a deployment directory separately for a service, you can configure host variables when configuring the service host list. Take the TiKV node as an example and it is similar for other services. You must add the first column alias to avoid confusion when the services are mixedly deployed.
TiKV1-1 ansible_host=<IP_ADDRESS> deploy_dir=/data1/deploy
| Variable | Description |
|---|---|
| cluster_name | the name of a cluster, adjustable |
| tidb_version | the version of TiDB, configured by default in TiDB-Ansible branches |
| deployment_method | the method of deployment, binary by default, Docker optional |
| process_supervision | the supervision way of processes, systemd by default, supervise optional |
| timezone | the timezone of the managed node, adjustable, Asia/Shanghai by default, used with the set_timezone variable |
| set_timezone | to edit the timezone of the managed node, True by default; False means closing |
| enable_elk | currently not supported |
| enable_firewalld | to enable the firewall, closed by default |
| enable_ntpd | to monitor the NTP service of the managed node, True by default; do not close it |
| machine_benchmark | to monitor the disk IOPS of the managed node, True by default; do not close it |
| set_hostname | to edit the hostname of the mananged node based on the IP, False by default |
| enable_binlog | whether to deploy Pump and enable the binlog, False by default, dependent on the Kafka cluster; see the zookeeper_addrs variable |
| zookeeper_addrs | the zookeeper address of the binlog Kafka cluster |
| enable_slow_query_log | to record the slow query log of TiDB into a single file: ({{ deploy_dir }}/log/tidb_slow_query.log). False by default, to record it into the TiDB log |
| deploy_without_tidb | the Key-Value mode, deploy only PD, TiKV and the monitoring service, not TiDB; set the IP of the tidb_servers host group to null in the inventory.ini file |
When ansible-playbook
runs Playbook, the default concurrent number is 5. If many deployment target machines are deployed, you can add the -f
parameter to specify the concurrency, such as ansible-playbook deploy.yml -f 10
.
The following example uses the tidb
user account as the user who runs the service.
To deploy TiDB using a normal user account, take the following steps:
Edit the tidb-ansible/inventory.ini
file to make sure ansible_user = tidb
.
## Connection
# ssh via root:
# ansible_user = root
# ansible_become = true
# ansible_become_user = tidb
# ssh via normal user
ansible_user = tidb
Run the following command and if all servers return tidb
, then the SSH mutual trust is successfully configured:
ansible -i inventory.ini all -m shell -a 'whoami'
Run the following command and if all servers return root
, then sudo without password of the tidb
user is successfully configured:
ansible -i inventory.ini all -m shell -a 'whoami' -b
Run the local_prepare.yml
playbook, connect to the Internet and download TiDB binary to the Control Machine.
ansible-playbook local_prepare.yml
Initialize the system environment and modify the kernel parameters.
ansible-playbook bootstrap.yml
Deploy the TiDB cluster software.
ansible-playbook deploy.yml
Start the TiDB cluster.
ansible-playbook start.yml
Note: If you want to deploy TiDB using the root user account, see Ansible Deployment Using the Root User Account.
It is recommended to configure load balancing to provide uniform SQL interface.
Connect to the TiDB cluster using the MySQL client.
mysql -u root -h <IP_ADDRESS> -P 4000
Note: The default port of TiDB service is 4000.
Access the monitoring platform using a web browser.
http://<IP_ADDRESS>:3000
The default account and password: admin
/admin
.
pd*3, tidb*2, tikv*3
.pump
/drainer
services are running in the cluster, stop the drainer
service before rolling update. The rolling update of the TiDB service automatically updates the pump
service.Edit the value of the tidb_version
parameter in inventory.ini
, and specify the version number you need to update to. The following example specifies the version number as v1.0.2
:
tidb_version = v1.0.2
Delete the existing downloads directory tidb-ansible/downloads/
.
rm -rf downloads
Use playbook
to download the TiDB 1.0 binary and replace the existing binary in tidb-ansible/resource/bin/
automatically.
ansible-playbook local_prepare.yml
You can also download the binary manually. Use wget
to download the binary and replace the existing binary in tidb-ansible/resource/bin/
manually.
wget http://download.pingcap.org/tidb-v1.0.0-linux-amd64-unportable.tar.gz
Note: Remember to replace the version number in the download link.
Apply rolling update to the TiKV node (only update the TiKV service).
ansible-playbook rolling_update.yml --tags=tikv
Apply rolling update to the PD node (only update single PD service).
ansible-playbook rolling_update.yml --tags=pd
Apply rolling update to the TiDB node (only update single TiDB service).
ansible-playbook rolling_update.yml --tags=tidb
Apply rolling update to all services.
ansible-playbook rolling_update.yml
| Job | Playbook |
|---|---|
| Start the cluster | ansible-playbook start.yml |
| Stop the cluster | ansible-playbook stop.yml |
| Destroy the cluster | ansible-playbook unsafe_cleanup.yml (If the deployment directory is a mount point, an error will be reported, but implementation results will remain unaffected) |
| Clean data (for test) | ansible-playbook unsafe_cleanup_data.yml |
| Rolling Upgrade | ansible-playbook rolling_update.yml |
| Rolling upgrade TiKV | ansible-playbook rolling_update.yml --tags=tikv |
| Rolling upgrade modules except PD | ansible-playbook rolling_update.yml --skip-tags=pd |
| Rolling update the monitoring components | ansible-playbook rolling_update_monitor.yml |
If you need to install the TiDB 1.0.4 version, download the TiDB-Ansible release-1.0
branch and make sure tidb_version = v1.0.4
in the inventory.ini
file. For installation procedures, see the above description in this document.
Download the TiDB-Ansible release-1.0
branch from GitHub:
git clone -b release-1.0 https://github.com/pingcap/tidb-ansible.git
Edit the inventory.ini
file and add the following host variable after the IP of the corresponding service:
| Component | Variable Port | Default Port | Description |
|---|---|---|---|
| TiDB | tidb_port | 4000 | the communication port for the application and DBA tools |
| TiDB | tidb_status_port | 10080 | the communication port to report TiDB status |
| TiKV | tikv_port | 20160 | the TiKV communication port |
| PD | pd_client_port | 2379 | the communication port between TiDB and PD |
| PD | pd_peer_port | 2380 | the inter-node communication port within the PD cluster |
| Pump | pump_port | 8250 | the pump communication port |
| Prometheus | prometheus_port | 9090 | the communication port for the Prometheus service |
| Pushgateway | pushgateway_port | 9091 | the aggregation and report port for TiDB, TiKV, and PD monitor |
| node_exporter | node_exporter_port | 9100 | the communication port to report the system information of every TiDB cluster node |
| Grafana | grafana_port | 3000 | the port for the external Web monitoring service and client (Browser) access |
| Component | Variable Directory | Default Directory | Description |
|---|---|---|---|
| Global | deploy_dir | /home/tidb/deploy | the deployment directory |
| TiDB | tidb_log_dir | {{ deploy_dir }}/log | the TiDB log directory |
| TiKV | tikv_log_dir | {{ deploy_dir }}/log | the TiKV log directory |
| TiKV | tikv_data_dir | {{ deploy_dir }}/data | the data directory |
| TiKV | wal_dir | ”” | the rocksdb write-ahead log directory, consistent with the TiKV data directory when the value is null |
| TiKV | raftdb_path | ”” | the raftdb directory, being tikv_data_dir/raft when the value is null |
| PD | pd_log_dir | {{ deploy_dir }}/log | the PD log directory |
| PD | pd_data_dir | {{ deploy_dir }}/data.pd | the PD data directory |
| Pump | pump_log_dir | {{ deploy_dir }}/log | the Pump log directory |
| Pump | pump_data_dir | {{ deploy_dir }}/data.pump | the Pump data directory |
| Prometheus | prometheus_log_dir | {{ deploy_dir }}/log | the Prometheus log directory |
| Prometheus | prometheus_data_dir | {{ deploy_dir }}/data.metrics | the Prometheus data directory |
| pushgateway | pushgateway_log_dir | {{ deploy_dir }}/log | the pushgateway log directory |
| node_exporter | node_exporter_log_dir | {{ deploy_dir }}/log | the node_exporter log directory |
| Grafana | grafana_log_dir | {{ deploy_dir }}/log | the Grafana log directory |
| Grafana | grafana_data_dir | {{ deploy_dir }}/data.grafana | the Grafana data directory |
Run the following command. If it returns running
, then the NTP service is running:
$ sudo systemctl status ntpd.service
● ntpd.service - Network Time Service
Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor preset: disabled)
Active: active (running) since 一 2017-12-18 13:13:19 CST; 3s ago
Run the ntpstat command. If it returns synchronised to NTP server
(synchronizing with the NTP server), then the synchronization process is normal.
$ ntpstat
synchronised to NTP server (<IP_ADDRESS>) at stratum 2
time correct to within 91 ms
polling server every 1024 s
Note: For the Ubuntu system, install the
ntpstat
package.
The following condition indicates the NTP service is not synchronized normally:
$ ntpstat
unsynchronised
The following condition indicates the NTP service is not running normally:
$ ntpstat
Unable to talk to NTP daemon. Is it running?
Running the following command can promote the starting of the NTP service synchronization. You can replace pool.ntp.org
with other NTP server.
$ sudo systemctl stop ntpd.service
$ sudo ntpdate pool.ntp.org
$ sudo systemctl start ntpd.service
Refer to Download TiDB-Ansible to the Control Machine and download TiDB-Ansible. Add the IP of the deployment target machine to [servers]
. You can replace the ntp_server
variable value pool.ntp.org
with other NTP server. Before starting the NTP service, the system ntpdate
the NTP server. The NTP service deployed by Ansible uses the default server list in the package. See the server
parameter in the cat /etc/ntp.conf
file.
$ vi hosts.ini
[servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
[all:vars]
username = tidb
ntp_server = pool.ntp.org
Run the following command, and enter the root password of the deployment target machine as prompted:
$ ansible-playbook -i hosts.ini deploy_ntp.yml -k
Run the following command on the CentOS 7 system:
$ sudo yum install ntp ntpdate
$ sudo systemctl start ntpd.service
ansible_user = tidb
) account in inventory.ini
must have the sudo privileges or running Docker privileges.Install the docker-py
module on the Control Machine and the managed node.
sudo pip install docker-py
Edit the inventory.ini
file:
# deployment methods, [binary, docker]
deployment_method = docker
# process supervision, [systemd, supervise]
process_supervision = systemd
The Docker installation process is similar to the binary method.
# process supervision, [systemd, supervise]
process_supervision = systemd
For versions earlier than TiDB 1.0.4, the TiDB-Ansible supervision method of a process is supervise by default. The previously installed cluster can remain the same. If you need to change the supervision method to systemd, close the cluster and run the following command:
ansible-playbook stop.yml
ansible-playbook deploy.yml -D
ansible-playbook start.yml
For the Ubuntu system, install Ansible using PPA source:
sudo add-apt-repository ppa:ansible/ansible
sudo apt-get update
sudo apt-get install ansible
For other systems, see the official Ansible document.
Format your data disks to ext4 filesystem and mount the filesystem with the nodelalloc
and noatime
options. It is required to mount the nodelalloc
option, or else the Ansible deployment cannot pass the detection. The noatime
option is optional.
Take the /dev/nvme0n1
data disk as an example:
# vi /etc/fstab
/dev/nvme0n1 /data1 ext4 defaults,nodelalloc,noatime 0 2
tidb
user on the Control Machine and generate the SSH key.# useradd tidb
# passwd tidb
# su - tidb
$
$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/tidb/.ssh/id_rsa):
Created directory '/home/tidb/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/tidb/.ssh/id_rsa.
Your public key has been saved in /home/tidb/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:eIBykszR1KyECA/h0d7PRKz4fhAeli7IrVphhte7/So<EMAIL_ADDRESS>The key's randomart image is:
+---[RSA 2048]----+
|=+o+.o. |
|o=o+o.oo |
| .O.=.= |
| . B.B + |
|o B * B S |
| * + * + |
| o + . |
| o E+ . |
|o ..+o. |
+----[SHA256]-----+
Refer to Download TiDB-Ansible to the Control Machine and download TiDB-Ansible. Add the IP of the deployment target machine to [servers]
.
$ vi hosts.ini
[servers]
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
<IP_ADDRESS>
[all:vars]
username = tidb
Run the following command, and enter the root
password of the deployment target machine as prompted:
$ ansible-playbook -i hosts.ini create_users.yml -k
Use the root
user to login to the deployment target machine, create the tidb
user and set the login password.
# useradd tidb
# passwd tidb
To configure sudo without password, run the following command, and add tidb ALL=(ALL) NOPASSWD: ALL
to the end of the file:
# visudo
tidb ALL=(ALL) NOPASSWD: ALL
Use the tidb
user to login to the Control Machine, and run the following command. Replace <IP_ADDRESS>
with the IP of your deployment target machine, and enter the tidb
user password of the deployment target machine. Successful execution indicates that SSH mutual trust is already created. This applies to other machines as well.
<EMAIL_ADDRESS>~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub <IP_ADDRESS>
Use the tidb
user to login to the Control Machine, and login to the IP of the target machine using SSH. If you do not need to enter the password and can successfully login, then SSH mutual trust is successfully configured.
<EMAIL_ADDRESS>~]$ ssh <IP_ADDRESS>
<EMAIL_ADDRESS>~]$
After you login to the deployment target machine using the tidb
user, run the following command. If you do not need to enter the password and can switch to the root
user, then sudo without password of the tidb
user is successfully configured.
<EMAIL_ADDRESS>~]$ sudo -su root
<EMAIL_ADDRESS>tidb]#
What’s on this page
© 2018 PingCAP. All Rights Reserved.
中文


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Clinton Press Conference Clock!
Hillary Clinton had her last press conference on:
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Copyright (c) 2004 Dieter Stein
This game is played on the following board.
|
| An
example [taken from the game website]
[Castle's cells are identified with blue dots. Check coordinates by moving the mouse over the board cells] Black must defend the White attack from f6 to his stack at d6 (White would create a safe stack inside Black's castle). He can easily defend by moving, one cell sideways, the stack at d5 to e6. Another Black option is to stack d6 into d5 and make a double threat: (a) to slide d5 to g5 creating a safe stack, (b) it frees the triple black stack at c6 to capture f6. |
This game is a variant of Accasta. Some notes from the author: Accasta is an abstract board game for two players. Influenced by Dr. Emanuel Lasker's Lasca and Wladyslaw Glinksi's Hexagonal Chess, I tried to achieve a clean and original game using stacks and a hexagonal board. In spring 1998, after a long time of development, Accasta was ready to be published on the Web and in the German game inventor's magazine Spiel & Autor, Vol. 34. Accasta took part in some game design competitions and was one of the finalists of the Premio Archimede 1998 in Italy. In 2001 the first version for online play was implemented for Richard's PBeM Server. [...] In the Pari variant it is obviously a good strategy to stack one's own pieces - even more as in the standard game, as it leads not only to more powerful stacks (regarding multiple moves), but also promotes the moving piece. On the other hand, it is still true that powerful stacks are in danger to turn into safe stacks controlled by the opponent.


178-member Sikh delegation arrives from UK
by https://www.dawn.com/authors/397/the-newspaper-s-staff-reporter, The Newspaper's Staff ReporterLAHORE: A group of Sikh pilgrims reached here on Sunday from London through a PIA flight to visit their sacred places in Sheikhupura, Nankana and Narowal districts and attend Baba Guru Nanak’s 550th birth anniversary celebrations.
Soon after landing, the 178-member group left for Gurdwara Janam Asthan Nankana Sahib and Gurdwara Sucha Sauda in Sheikhupura district.
The pilgrims will also participate in Baba Guru Nanak’s 550th birth celebrations at Gurdwara Darbar Sahib, Kartarpur, Narowal district.
The Pakistan Gurdwara Parbandhak Committee has announced that Baba Guru Nanak’s birth anniversary celebrations would continue throughout the month of November.
Sikh pilgrims from India as well as from Europe and North America will attend various events being held in this respect.
The main event, says Punjab Evacuee Trust Board spokesperson Amer Hashmi, will take place at Nankana Sahib on Nov 12.
Meanwhile, the first batch of some 1,100 Sikh pilgrims, along with a gold Palki arrived here on Thursday through Wagah Border.
The Palki will be installed at Gurdwara Darbar Sahib, Kartarpur, in connection with the birth anniversary of Baba Guru Nanak on Tuesday.
Published in Dawn, November 4th, 2019


Fairy Odd Parents was another childhood cartoon that I did like watching when I was a young lad. The main character there was Timmy Tunner and other semi main characters include Cosmo and Wanda, Timmy's dad and mom, timmy's babby sitter Vicky and my favourite of them all was the nut-head teacher, Mr Kracker. That guy cracked me up with laughter and humour.
This show involved Timmy Tunner requesting for wishes using the magic words "I wish". Without those words, no wishing would be possible. the wishes are granted by his fairy odd parents, Cosmo and Wanda. Cosmo is not a clever fairy and is the husband of Wanda. Wanda on the other hand is clever. In the later episodes of the show, they managed to sire a son and they named him Puff. The only words that the child can communicate are "puff puff".
Timmy's dad is also not clever but the mother is. The mother works in a prestigious company while the father is lucky to get a job. The job that I once witnessed him do was work in a pencil making company. Most of the time, he does house chores. We then have a very humorous teacher of Timmy who is very clever as he has a lab and knows that Timmy has fairies. His name is Mr. Kracker. He seems to have gone Krackers after discovering about ferries. His main aim is to capture those fairies and nothing more.


Front End Development Part 1
The float CSS property specifies that an element should be placed along the left or right side of its container, allowing text and inline elements to wrap around it. The element is removed from the normal flow of the web page, though still remaining a part of the flow (in contrast to absolute positioning).
The clear CSS property specifies whether an element can be next to floating elements that precede it or must be moved down (cleared) below them. The clear property applies to both floating and non-floating elements.
When you add float, always make sure that it is cleared properly. At the time of adding it!
The position CSS property specifies how an element is positioned in a document. The top, right, bottom, and left properties determine the final location of positioned elements.
The default state of every element — it just means "put the element into its normal position in the document layout flow — nothing special to see here."
Very similar to static positioning, except that once the positioned element has taken its place in the normal layout flow, you can then modify its final position, including making it overlap other elements on the page.
Used alongside position to specify exactly where to move the positioned element to.
This way we have to position the element based on a two dimentional coordinate system. We can use left, top, bottom, right to place the element exactly where we want.
Which element is the "containing element" of an absolutely positioned element? This is very much dependent on the position property of the ancestors of the positioned element.
All this absolute positioning is good fun, but there is another thing we haven't considered yet — when elements start to overlap, what determines which elements appear on top of which other elements? In the example we've seen so far, we only have one positioned element in the positioning context, and it appears on the top, since positioned elements win over non-positioned elements. What about when we have more than one?
This works in exactly the same way as absolute positioning, with one key difference:
whereas absolute positioning fixes an element in place relative to the html
element or its nearest positioned ancestor, fixed positioning fixes an element in place relative to the browser viewport itself. This means that you can create useful UI items that are fixed in place, like persisting navigation menus.
An interesting and common use of position: sticky is to create a scrolling index page where different headings stick to the top of the page as they reach it.


Right Track Database (sqlite3)
node module: right-track-db-sqlite3
GitHub repo: right-track/right-track-db-sqlite3
This Node module provides an implementation of the abstract RightTrackDB Class using the node-sqlite3 module. This Class is used to query the SQLite Right Track Database containing the GTFS and additional Right Track data. The SQLite database is generated using the right-track-db-build module.
Documentation
For documentation on this implementation of RightTrackDB
, see the /doc/
directory in this repository or online at https://docs.righttrack.io/right-track-db-sqlite3.
For documentation on the abstract RightTrackDB
Class, see the source code
available at https://github.com/right-track/right-track-db
or its documentation at https://docs.righttrack.io/right-track-db.


Please Make a Donation:
Hosted by:
|
Steps to Using Pyke
- You provide the following to Pyke's knowledge engine:
- A set of universally true statements.
- These statements are true for all time.
- The text for all questions that you might want Pyke to ask your end user.
- Multiple sets of rules.
- Repeat for each specific use case:
- You provide a set of statements describing this specific use case to
Pyke.
- You select which set of rules apply to this use case.
- Pyke automatically runs all of the selected forward-chaining rules that
apply to the statements that you've given to it to deduce new statements.
- Your forward-chaining rules may interactively ask your end user
questions, or get information by executing commands (programs)
on the computer that it's running on to help in its decision
making.
- You ask Pyke a question by having it prove a goal (which is just
another statement). This goal may include pattern variables that
allow you to ask "for what values is this statement true?".
- Pyke runs the selected backward-chaining rules against the statements
that it has in order to figure out the answer to your question.
- Your backward-chaining rules may also ask your end user questions and
run commands.
- You may have written Python code at the end of some of your
backward-chaining rules. For each such rule, Pyke has compiled this
Python code into a Python function called a plan which it has attached
to the rule.
- Once Pyke finds an answer to your question, it gathers all of the plan
functions of the rules that it used to find your answer into a
complete function call graph. The plan functions are linked together
mirroring the way that the rules were linked together to find your
answer. In this way, you can write high-level compilers that assemble
together and configure a set of Python functions to solve specific
problems.
- Pyke returns the top Python function of this function call graph as a
standard Python function along with the answer to your question. You
may call this function as may times as you like. You may also pickle
the function so that you can send it to another program or save it to
disk. You only need one small Pyke module to load and run these
pickles.
- You reset Pyke to clear out all of these case specific statements and
prepare it for the next use case.
|
More:
Steps to Using PykeA brief list of the steps involved in programming in Pyke (with lots
of links).
Modifying PykeWhich source code repository to use. And the other tools that you'll
need run the units tests, and rebuild the html documentation.
|


Police declare emergency on Lagos traffic, deploy 1,000
by https://www.facebook.com/CheerfulpraiseBy Precious Igbonwelundu
Lagos Police Commissioner Hakeem Odumosu has declared a state of emergency on Lagos traffic with 1,000 officers and men pushed to the roads to cushion the effects.
Odumosu who took over as Commissioner on Monday resumed at a time Lagosians are facing horrendous gridlocks occasioned by ongoing road constructions on major highways.
The Nation reports that many residents took to social media to lament man hours spent in traffic especially along Agege Motor Road, Airport Road, Ikorodu Road, Eko Bridge, Apongbo and Victoria Island.
Our correspondent reports that motorists were stuck between Bolade Oshodi and Ikeja Along Bus Stop for over five hours, a distance that ordinarily should not exceed 15 minutes.
Acknowledging that miscreants could easily prey on such situations, Odumosu on Thursday deployed additional 1,000 cops to traffic duties across the state.
Read Also: Police recover corpse in Anambra River
At an emergency meeting with his management team, heads of units/ departments, Area Commanders and Divisional Police Officers (DPOs) to review the current traffic situation, Odumosu directed 24-hour coverage of all roads.
According to a statement by police spokesman Bala Elkana, a Deputy Superintendent (DSP), the Commissioner also reviewed traffic duty to two shifts daily.
“Traffic Duty Officers will run shifts between 10 am and 10 pm while the second shift will be 10 pm to 10 am. They will provide 24-hour coverage. They will all operate in their usual reflective jackets.
“The measure will help in ensuring free flow of traffic and will also curb the menace of traffic robbery. The Commissioner of Police calls on Lagosians to accord the Police Officers on traffic duties maximum cooperation in the discharge of their statutory duties. All road users are enjoined to obey traffic laws,” he said.


{% extends "../base.html" %} {% block content %}
By submitting form below, your printer log files and configurations will be transmitted for debugging purpose.


I cannot save a filterset anymore. The window pops up and I can type a name but upon clicking OK nothing happens, the window stays open and no new entry appears in the list. I can load my older filtersets though. I dont know since when I cannot save anymore, maybe a week?
I am using the latest Chrome Version 30.0.1599.69 m and the latest bblog extension, which I removed and installed again.


Transparency data
Apprenticeships: government spending and expected levy payments
How much money the government is spending on apprenticeships and the amount employers will pay as part of the apprenticeship levy.
Documents
Ref:
DFE-00191-2016
PDF
,
344KB
,
9 pages
Details
Data on apprenticeships, including:
-
the amount of apprenticeship levy we expect employers will pay, shown by:
-
the proportion of employers we expect to pay the levy by different sectors
-
the proportion of employers we expect to pay the levy by different size of employers
-
current spending on apprenticeships by size of employer and sector subject area
-
how much the government is spending on apprenticeships this Parliament


Igel UI
Enter your dataset:
Test size:
Shuffle while split:
Yes
No
Replace missing values with:
mean
median
drop
most frequent
constant
Encoding:
one hot encoding
label encoding
Scaling method:
standardization
normalization
Scaling target:
inputs
outputs
Type of the problem you want to solve:
regression
classification
clustering
Algorithm you want to use:
neural networks
linear regression
logistic regression
decision tree
random forest
extra trees
support vector machines
nearest neighbor
gradient boosting
Adaboost
Perceptron
Ridge
Lasso
Target you want to predict:
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| the messages of the response contains |
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x |
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The set of values - BOM BASE.base rule
- Fred is 51 years old
- MC base customer rules.base rule
- product A rules.look at messages
- product A rules.logic.base rule
- BOM BASE.base rule
- Fred is 51 years old
- Excute Product A rules
- product A rules.look at messages
- product A rules.logic.base rule
- BOM BASE.base rule
- Fred is 51 years old
- final rules.base rule
does not contain the expected values |
| the status of the response equals |
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x |
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The observed value null does not equal the expected value ? |
| the list of fired rules contains |
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x |
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The set of values - BOM BASE.base rule
- MC base customer rules.base rule
- Product Rule Set Rules.Rule Set Selection Table 2
- Product Rule Set Rules.base rule
- final rules.base rule
does not contain the expected values |


Before Change
// path to this comicsite?
try:
project = re.findall("^\/site\/([^\/]+)\/.*$", url)[0]
except IndexError:
// this url cannot use the domain name shortcut, so it is
// probably meant as a link the main comicframework site.
After Change
// Interpret subdomain as a comicsite. What would normally be the
// path to this comicsite?
args = [arg.resolve(context) for arg in self.args]
project = args[0]
if project == settings.MAIN_PROJECT_NAME:
// this url cannot use the domain name shortcut, so it is
// probably meant as a link the main comicframework site.


Makes latency assessments of distributed systems build from microservices.
| ID | Title | Duration (ms) | Sessions (#) | Capacity (RPS) | Availability (%) | Latency (μs) | Status |
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End-to-end latency is one of user-oriented characteristics used for quality assessment of distributed software architecture. The ultimate goal is the ability to quantitatively evaluate and trade-off software quality attributes to ensure competitive end-to-end latency of software solutions. This latency analysis is the investigation of a component behavior using information gathered as the service sustain artificial load.
The capacity measures the value of successful requests per unit of time. It reflects amount of effective traffic carried through system-under-test.
min 50% max 99% 95% 90% 80% 75%
Time to First Byte (TTFB) is the duration from making an request to the first byte of the response being received. This metric assume that the network appears to mobile application as a system that makes it wait. This delay is influenced by request transfer delay, time required by remote host to process request, and delivery time of first byte/packet of the response. TTFB represents initial confirmation that remote host is responding and client application could procedure to rendering. A primary advantage of TTFB is that it concrete, consumer oriented metric easily measurable and is defined independently of underlying solutions or technologies.
min 50% max 99% 95% 90% 80% 75%
The time to display response is the most valuable metric from consumer perspective. It is influenced by performance of network and client application by itself. The time required for response rendering needs to be excluded from quality assessment due its dependency on user interface technology. Instead, Time to Meaningful Response (TTMR) is defined as network delay required to deliver response to client.
min 50% max 99% 95% 90% 80% 75%
min 50% max 99% 95% 90% 80% 75%
min 50% max 99% 95% 90% 80% 75%
min 50% max 99% 95% 90% 80% 75%
min 50% max 99% 95% 90% 80% 75%


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Represents a client connected to the bus. Every callback methods registered by an agent receive an object of this type as their first parameter, so that they know which agent on the bus is the cause of the event which triggered the callback.
An IvyClient is responsible for:
- managing the remote agent's subscriptions,
- sending messages to the remote agent.
It is not responsible for receiving messages from the client: another object is in charge of that, namely an IvyHandler object.
The local IvyServer creates one IvyClient per agent on the bus.
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threading.Lock
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regexp_lock a non-reentrant lock protecting the variable regexps. |
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regexps a dictionary mapping subscriptions' ids (as delivered by add_regexp) to the corresponding regular expressions. |
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Sends a direct message Note: the message will be encoded by encode_message with
numerical_id=num_id and params==msg; this means that if typedef void (*MsgDirectCallback)( IvyClientPtr app, void *user_data, int id, char *msg ) ; |
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Internally used to send message to the remote agent through the opened
socket self.socket. This method catches all exceptions
The errors that can occur are for example: socket.timeout: timed out socket.error: (104, 'Connection reset by peer') socket.error: (32, 'Broken pipe') They can happen after a client disconnects abruptly (because it was killed, because the network is down, etc.). We assume here that if and when an error happens here, a disconnection will be detected shortly afterwards by the server which then removes this agent from the bus. Hence, we ognore the error; please also note that not ignoring the error can have an impact on code, for example, IyServer.send_msg() does not expect that IvyClient.send() fails and if it fails, it is possible that the server does not send the message to all possible subscribers. Note ivysocket.c:SocketSendRaw() also ignores error, simply logging them. |
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regexp_locka non-reentrant lock protecting the variable regexps. Used by methods add_regexp, remove_regexp and send_msg.
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regexpsa dictionary mapping subscriptions' ids (as delivered by add_regexp) to the corresponding regular expressions. Precisely, it maps ids to tuples being (regexp_as_string, compiled_regexp). You shouldn't directly access or manipulate this variable, use add_regexp and remove_regexp instead; however if you really need/want to, you must acquire the regexp_lock before accessing/modifying it. |
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| Generated by Epydoc 3.0.1 on Tue Jun 10 18:21:20 2008 | http://epydoc.sourceforge.net |


More than 8 million tons of plastic is dumped into our oceans every single year
Plastic- its everywhere.
Plastic is a part of our everyday lives. Its in our grocery stores, our restaurants, our toiletries, toys, furniture, clothes. But most importantly, its in our oceans. We use it to package food, and to bottle products. To make dinnerware and to make toys. Plastic has helped us to manufacture, package, and ship goods more easily, for less money and safer.


Fruit Basket
Group 2
Catch the fruits
If you didn’t catch the fruits, decrease health by 3
If you catch a bomb, decrease health by 25
If you catch a worm, decrease health by 10
Back


| [ Team LiB ] |
11.4 The Python Database API (DBAPI) 2.0As I mentioned earlier, the Python standard library does not come with an RDBMS interface, but there are many free third-party modules that let your Python programs access specific databases. Such modules mostly follow the Python Database API 2.0 standard, also known as the DBAPI. At the time of this writing, Python's DBAPI Special Interest Group (SIG) was busy preparing a new version of the DBAPI (possibly to be known as 3.0 when it is ready). Programs written against DBAPI 2.0 should work with minimal or no changes with the future DBAPI 3.0, although 3.0 will no doubt offer further enhancements that future programs will be able to take advantage of. If your Python program runs only on Windows, you may prefer to access databases by using Microsoft's ADO package through COM. For more information on using Python on Windows, see the book Python Programming on Win32, by Mark Hammond and Andy Robinson (O'Reilly). Since ADO and COM are platform-specific, and this book focuses on cross-platform use of Python, I do not cover ADO nor COM further in this book. After importing a DBAPI-compliant module, you call the module's connect function with suitable parameters. connect returns an instance of class Connection, which represents a connection to the database. This instance supplies commit and rollback methods to let you deal with transactions, a close method to call as soon as you're done with the database, and a cursor method that returns an instance of class Cursor. This instance supplies the methods and attributes that you'll use for all database operations. A DBAPI-compliant module also supplies exception classes, descriptive attributes, factory functions, and type-description attributes. 11.4.1 Exception ClassesA DBAPI-compliant module supplies exception classes Warning, Error, and several subclasses of Error. Warning indicates such anomalies as data truncation during insertion. Error's subclasses indicate various kinds of errors that your program can encounter when dealing with the database and the DBAPI-compliant module that interfaces to it. Generally, your code uses a statement of the form: try: ... except module.Error, err: ... in order to trap all database-related errors that you need to handle without terminating. 11.4.2 Thread SafetyWhen a DBAPI-compliant module has an attribute threadsafety that is greater than 0, the module is asserting some specific level of thread safety for database interfacing. Rather than relying on this, it's safer and more portable to ensure that a single thread has exclusive access to any given external resource, such as a database, as outlined in Chapter 14. 11.4.3 Parameter StyleA DBAPI-compliant module has an attribute paramstyle that identifies the style of markers to use as placeholders for parameters. You insert such markers in SQL statement strings that you pass to methods of Cursor instances, such as method execute, in order to use runtime-determined parameter values. Say, for example, that you need to fetch the rows of database table ATABLE where field AFIELD equals the current value of Python variable x. Assuming the cursor instance is named c, you could perform this task by using Python's string formatting operator % as follows: c.execute('SELECT * FROM ATABLE WHERE AFIELD=%r' % x) However, this is not the recommended approach. This approach generates a different statement string for each value of x, requiring such statements to be parsed and prepared anew each time. With parameter substitution, you pass to execute a single statement string, with a placeholder instead of the parameter value. This lets execute perform parsing and preparation just once, giving potentially better performance. For example, if a module's paramstyle attribute is 'qmark', you can express the above query as: c.execute('SELECT * FROM ATABLE WHERE AFIELD=?', [x]) The read-only attribute paramstyle is meant to inform your program about the way to use parameter substitution with that module. The possible values of paramstyle are:
When paramstyle does not imply named parameters, the second argument of method execute is a sequence. When parameters are named, the second argument of method execute is a dictionary. 11.4.4 Factory FunctionsParameters passed to the database via placeholders must typically be of the right type. This means Python numbers (integers or floating-point values), strings (plain or Unicode), and None to represent SQL NULL. Python has no specific types to represent dates, times, and binary large objects (BLOBs). A DBAPI-compliant module supplies factory functions to build such objects. The types used for this purpose by most DBAPI-compliant modules are those supplied by module mxDateTime, covered in Chapter 12, and strings or buffer types for BLOBs. The factory functions are as follows.
Returns an object representing the given string of bytes as a BLOB.
Returns an object representing the specified date.
Returns an object representing the date that is s seconds after the epoch of module time, covered in Chapter 12. For example, DateFromTicks(time.time( )) is today's date.
Returns an object representing the specified time.
Returns an object representing the time that is s seconds after the epoch of module time, covered in Chapter 12. For example, TimeFromTicks(time.time( )) is the current time.
Returns an object representing the specified date and time.
Returns an object representing the date and time that is s seconds after the epoch of module time, covered in Chapter 12. For example, TimestampFromTicks(time.time( )) is the current date and time. 11.4.5 Type Description AttributesA Cursor instance's attribute description describes the types and other characteristics of each column of a query. Each column's type (the second item of the tuple describing the column) equals one of the following attributes of the DBAPI-compliant module:
A cursor's description, and in particular each column's type, is mostly useful for introspection about the database your program is working with. Such introspection can help you write general modules that are able to work with databases that have different schemas, schemas that may not be fully known at the time you are writing your code. 11.4.6 The connect FunctionA DBAPI-compliant module's connect function accepts arguments that vary depending on the kind of database and the specific module involved. The DBAPI standard recommends, but does not mandate, that connect accept named arguments. In particular, connect should at least accept optional arguments with the following names:
11.4.7 Connection ObjectsA DBAPI-compliant module's connect function returns an object x that is an instance of class Connection. x supplies the following methods.
Terminates the database connection and releases all related resources. Call close as soon as you're done with the database, since keeping database connections uselessly open can be a serious resource drain on the system.
Commits the current transaction in the database. If the database does not support transactions, x.commit( ) is an innocuous no-op.
Returns a new instance of class Cursor, covered later in this section.
Rolls back the current transaction in the database. If the database does not support transactions, x.rollback( ) raises an exception. The DBAPI recommends, but does not mandate, that for databases that do not support transactions class Connection supplies no rollback method, so that x.rollback( ) raises AttributeError. You can test whether transaction support is present with hasattr(x,'rollback'). 11.4.8 Cursor ObjectsA Connection instance provides a cursor method that returns an object c that is an instance of class Cursor. A SQL cursor represents the set of results of a query and lets you work with the records in that set, in sequence, one at a time. A cursor as modeled by the DBAPI is a richer concept, since it also represents the only way in which your program executes SQL queries in the first place. On the other hand, a DBAPI cursor allows you only to advance in the sequence of results (some relational databases, but not all, also provide richer cursors that are able to go backward as well as forward), and does not support the SQL clause WHERE CURRENT OF CURSOR. These limitations of DBAPI cursors enable DBAPI-compliant modules to provide cursors even on RDBMSes that provide no real SQL cursors at all. An instance of class Cursor c supplies many attributes and methods; the most frequently used ones are documented here.
Closes the cursor and releases all related resources.
A read-only attribute that is a sequence of seven-item tuples, one per column in the last query executed: name, typecode, displaysize, internalsize, precision, scale, nullable c.description is None if the last operation on c was not a query or returned no usable description of the columns involved. A cursor's description is mostly useful for introspection about the database your program is working with. Such introspection can help you write general modules that are able to work with databases that have different schemas, including schemas that may not be fully known at the time you are writing your code.
Executes a SQL statement on the database with the given parameters. parameters is a sequence when the module's paramstyle is 'format', 'numeric', or 'qmark', and a dictionary when 'named' or 'pyformat'.
Executes a SQL statement on the database, once for each item of the given parameters. parameters is a sequence of sequences when the module's paramstyle is 'format', 'numeric', or 'qmark', and a sequence of dictionaries when 'named' or 'pyformat'. For example, the statement: c.executemany('UPDATE atable SET x=? WHERE y=?', (12,23),(23,34)) that uses a module whose paramstyle is 'qmark' is equivalent to, but probably faster than, the two statements: c.execute('UPDATE atable SET x=12 WHERE y=23') c.execute('UPDATE atable SET x=23 WHERE y=34')
Returns all remaining result rows from the last query as a sequence of tuples. Raises an exception if the last operation was not a SELECT query.
Returns up to n remaining result rows from the last query as a sequence of tuples. Raises an exception if the last operation was not a SELECT query.
Returns the next result row from the last query as a tuple. Raises an exception if the last operation was not a SELECT query.
A read-only attribute that specifies the number of rows fetched or affected by the last operation, or -1 if the module is unable to determine this value. 11.4.9 DBAPI-Compliant ModulesWhatever relational database you want to use, there's at least one (and often more than one) DBAPI-compliant module that you can download from the Internet. All modules listed in the following sections, except mxODBC, have liberal licenses that are mostly similar to Python's license (the SAP DB, however, is licensed under GPL) and that let you use them freely in either open source or closed source programs. mxODBC can be used freely for noncommercial purposes, but you must purchase a license for any commercial use. There are so many relational databases that it's impossible to list them all, but here are some of the most popular ones:
11.4.10 GadflyGadfly, available at http://gadfly.sf.net, is not an interface to some other RDBMS, but rather a complete RDBMS engine written in Python. Gadfly supports a large subset of standard SQL. For example, Gadfly lacks NULL, but it does support VIEW, which is a crucial SQL feature that engines such as MySQL still lack at the time of this writing. Gadfly can run as a daemon server, to which clients connect with TCP/IP. Alternatively, you can run the Gadfly engine directly in your application's process, if you don't need other processes to be able to access the same database concurrently. The gadfly module has several discrepancies from the DBAPI 2.0 covered in this chapter because Gadfly implements a variant of the older DBAPI 1.0. The concepts are quite close, but several details differ. The main differences are:
The gadfly module supplies the following functions.
Returns a connection object for the database named dbname, which must have been previously created in the directory indicated by string dirpath. The database engine runs in the same process as your application.
Returns a connection object for the database served by a gfserve process on the given host and port. policyname identifies the level of access required, and is often 'admin' to specify unlimited access. |
| [ Team LiB ] |


PDoc is an inline comment parser and JavaScript documentation generator written in Ruby. It is designed for documenting Prototype and Prototype-based libraries.
PDoc uses Treetop, a Ruby-based DSL for text parsing and interpretation, and it’s own, ActionView-inspired, ERB-based templating system for HTML generation. Other documentation generators (for example, for DocBook XML) are planned.
Contrary to other inline documentation parser, PDoc does not rely on the JavaScript source code at all: it only parses the comments. This does imply being slightly more verbose when documenting the source code, but makes for a consistent, readable documentation and avoids the usual issues encountered when documenting highly dynamic languages.


A few weeks ago i saw a post by Nadeeka on creating a twitter bootstrap layout generation plugin for gridster . I tested the plugin and the layout generation part was fine for the selected use case. But I realized that gridster is not the best tool to support layout generation since,
The grid layout in editor represents html container with 12 columns grid system. You can simply drag n drop divs to the container with exact column sizes using the elements in toolbox. For an example col-07 represents a div with 7 columns and 1 row. You can resize a selected div using the pointers.
As I experienced drag n drop code generating editors rarely completely solve an addressed problem. This is applicable to the gridit as well. Currently the tool only allows generating layouts for medium devices (col-md) . For now, this tool is helpful to the ui designers at least to some extent as I believe.
Andersson-Wise is an architecture & design studio based in Austin, Texas. Our collaborative approach to residential, institutional, and hospitality architecture results in precise solutions carefully attuned to their purpose.
Andersson-Wise is an architecture & design studio based in Austin, Texas. Our collaborative approach.
Andersson-Wise is an architecture & design studio based in Austin, Texas. Our collaborative approach to residential, institutional, and hospitality architecture results in precise solutions carefully attuned to their purpose.


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Rule 101 Scope. These rules govern proceedings in the courts of the State of Hawaii, to the extent and with the exceptions stated in rule 1101. [L 1980, c 164, pt of §1]
RULE 101 COMMENTARY
This rule differs from Fed. R. Evid. 101 only in that "courts of the State of Hawaii" has been substituted for "courts of the United States and before United States magistrates." Rule 1101 provides greater detail regarding the applicability of the rules in various courts and proceedings.


One hurt in Brockman Highway, Nillup motorcycle crash
An RAC Rescue helicopter has been sent to a motorcycle crash on Brockman Highway, in Nillup.
Paramedics are on the scene.
More to come.
An RAC Rescue helicopter has been sent to a motorcycle crash on Brockman Highway, in Nillup.
Paramedics are on the scene.
More to come.


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