EPOLL_CTL
Section: Linux Programmer's Manual (2)
Updated: 2014-07-08
Index
Return to Main Contents
NAME
epoll_ctl - control interface for an epoll descriptor
SYNOPSIS
#include <sys/epoll.h>
int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
DESCRIPTION
This system call performs control operations on the
epoll(7)
instance
referred to by the file descriptor
epfd.
It requests that the operation
op
be performed for the target file descriptor,
fd.
Valid values for the
op
argument are :
- EPOLL_CTL_ADD
-
Register the target file descriptor
fd
on the
epoll
instance referred to by the file descriptor
epfd
and associate the event
event
with the internal file linked to
fd.
- EPOLL_CTL_MOD
-
Change the event
event
associated with the target file descriptor
fd.
- EPOLL_CTL_DEL
-
Remove (deregister) the target file descriptor
fd
from the
epoll
instance referred to by
epfd.
The
event
is ignored and can be NULL (but see BUGS below).
The
event
argument describes the object linked to the file descriptor
fd.
The
struct epoll_event
is defined as :
typedef union epoll_data {
void *ptr;
int fd;
uint32_t u32;
uint64_t u64;
} epoll_data_t;
struct epoll_event {
uint32_t events; /* Epoll events */
epoll_data_t data; /* User data variable */
};
The
events
member is a bit set composed using the following available event
types:
- EPOLLIN
-
The associated file is available for
read(2)
operations.
- EPOLLOUT
-
The associated file is available for
write(2)
operations.
- EPOLLRDHUP (since Linux 2.6.17)
-
Stream socket peer closed connection,
or shut down writing half of connection.
(This flag is especially useful for writing simple code to detect
peer shutdown when using Edge Triggered monitoring.)
- EPOLLPRI
-
There is urgent data available for
read(2)
operations.
- EPOLLERR
-
Error condition happened on the associated file descriptor.
epoll_wait(2)
will always wait for this event; it is not necessary to set it in
events.
- EPOLLHUP
-
Hang up happened on the associated file descriptor.
epoll_wait(2)
will always wait for this event; it is not necessary to set it in
events.
- EPOLLET
-
Sets the Edge Triggered behavior for the associated file descriptor.
The default behavior for
epoll
is Level Triggered.
See
epoll(7)
for more detailed information about Edge and Level Triggered event
distribution architectures.
- EPOLLONESHOT (since Linux 2.6.2)
-
Sets the one-shot behavior for the associated file descriptor.
This means that after an event is pulled out with
epoll_wait(2)
the associated file descriptor is internally disabled and no other events
will be reported by the
epoll
interface.
The user must call
epoll_ctl()
with
EPOLL_CTL_MOD
to rearm the file descriptor with a new event mask.
- EPOLLWAKEUP (since Linux 3.5)
-
If
EPOLLONESHOT
and
EPOLLET
are clear and the process has the
CAP_BLOCK_SUSPEND
capability,
ensure that the system does not enter "suspend" or
"hibernate" while this event is pending or being processed.
The event is considered as being "processed" from the time
when it is returned by a call to
epoll_wait(2)
until the next call to
epoll_wait(2)
on the same
epoll(7)
file descriptor,
the closure of that file descriptor,
the removal of the event file descriptor with
EPOLL_CTL_DEL,
or the clearing of
EPOLLWAKEUP
for the event file descriptor with
EPOLL_CTL_MOD.
See also BUGS.
RETURN VALUE
When successful,
epoll_ctl()
returns zero.
When an error occurs,
epoll_ctl()
returns -1 and
errno
is set appropriately.
ERRORS
- EBADF
-
epfd
or
fd
is not a valid file descriptor.
- EEXIST
-
op
was
EPOLL_CTL_ADD,
and the supplied file descriptor
fd
is already registered with this epoll instance.
- EINVAL
-
epfd
is not an
epoll
file descriptor,
or
fd
is the same as
epfd,
or the requested operation
op
is not supported by this interface.
- ENOENT
-
op
was
EPOLL_CTL_MOD
or
EPOLL_CTL_DEL,
and
fd
is not registered with this epoll instance.
- ENOMEM
-
There was insufficient memory to handle the requested
op
control operation.
- ENOSPC
-
The limit imposed by
/proc/sys/fs/epoll/max_user_watches
was encountered while trying to register
(EPOLL_CTL_ADD)
a new file descriptor on an epoll instance.
See
epoll(7)
for further details.
- EPERM
-
The target file
fd
does not support
epoll.
VERSIONS
epoll_ctl()
was added to the kernel in version 2.6.
CONFORMING TO
epoll_ctl()
is Linux-specific.
Library support is provided in glibc starting with version 2.3.2.
NOTES
The
epoll
interface supports all file descriptors that support
poll(2).
BUGS
In kernel versions before 2.6.9, the
EPOLL_CTL_DEL
operation required a non-null pointer in
event,
even though this argument is ignored.
Since Linux 2.6.9,
event
can be specified as NULL
when using
EPOLL_CTL_DEL.
Applications that need to be portable to kernels before 2.6.9
should specify a non-null pointer in
event.
If
EPOLLWAKEUP
is specified in
flags,
but the caller does not have the
CAP_BLOCK_SUSPEND
capability, then the
EPOLLWAKEUP
flag is
silently ignored.
This unfortunate behavior is necessary because no validity
checks were performed on the
flags
argument in the original implementation, and the addition of the
EPOLLWAKEUP
with a check that caused the call to fail if the caller did not have the
CAP_BLOCK_SUSPEND
capability caused a breakage in at least one existing user-space
application that happened to randomly (and uselessly) specify this bit.
A robust application should therefore double check that it has the
CAP_BLOCK_SUSPEND
capability if attempting to use the
EPOLLWAKEUP
flag.
SEE ALSO
epoll_create(2),
epoll_wait(2),
poll(2),
epoll(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- CONFORMING TO
-
- NOTES
-
- BUGS
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 02:54:50 GMT, September 18, 2014


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---
layout: default
---
Welcome
Hey, thanks for checking this out. This this a very simple demo app built using
Jekyll, AngularJS and
Firebase, hosted on GitHub pages and not a single line of backend code.
Read my blog post to learn more. Source code on GitHub.


{{/* Choose a librarian from the list of featured librarians based on the day of the year. Run a new build nightly to refresh the featured librarian. */}} {{ $featured_librarians := .Site.Data.librarians.featured }} {{ $max_idx := sub (len $featured_librarians) 1 }} {{ $featured_librarian_idx := mod now.YearDay $max_idx }} {{ $featured_librarian := index $featured_librarians $featured_librarian_idx }} {{/* feature a specfic subject specialist by adding the index integer from the featured.json list. list index begins at 0. */}} {{/* $featured_librarian := index $featured_librarians 10 */}} {{/* BEGIN Define template variables */}} {{/* Load librarian info from LibGuides API. This data is looked up once and cached. To clear the cache, start Hugo with --ignoreCache set or delete the cache files: rm -r $TMPDIR/hugo_cache/ */}} {{ $all_librarians_data := getJSON "https://lgapi-us.libapps.com/1.1/accounts?site_id=94&key=a8d4316f3140239e36f101209d9f1b36&expand[]=subjects&expand[]=profile" }} {{/* Assign a default background image if one is not set in the librarian_name.json file */}} {{ $background := "https://library.bc.edu/images/homepage/featuredlibrarian/defaultbackground-1200x675.jpg" }} {{ $caption := "" }} {{ if $featured_librarian.featured_background }} {{ $background = $featured_librarian.featured_background }} {{/* update background caption */}} {{ if $featured_librarian.featured_background_source }} {{ $caption = printf "%s Source: %s." $featured_librarian.featured_background_caption $featured_librarian.featured_background_source | safeHTML }} {{ else if $featured_librarian.featured_background_caption }} {{ $caption = $featured_librarian.featured_background_caption }} {{ else }} {{ $caption = "" }} {{ end }} {{ end }} {{/* default values */}} {{ $profile_id := "0" }} {{ $profile_url := "https://library.bc.edu" }} {{ $profile_image := "https://library.bc.edu/images/homepage/featuredlibrarian/baldwin-headshot.jpg" }} {{ $profile_first_name := "Baldwin" }} {{ $profile_full_name := "Baldwin Eagle" }} {{ $profile_title := "Pride and joy of the University" }} {{ $profile_background := "triangles" }} {{/* look up librarian profile metadata by $featured_librarian.profile_id */}} {{ $id_int := int $featured_librarian.profile_id }} {{ range where $all_librarians_data "id" "=" $id_int }} {{/* get profile ID */}} {{ $profile_id = $id_int }} {{/* get first name */}} {{ $profile_first_name = .first_name }} {{/* get full name */}} {{ $profile_full_name = $featured_librarian.name }} {{/* get title */}} {{ $profile_title = $featured_librarian.title }} {{/* get background */}} {{ $profile_background = $featured_librarian.featured_background_type }} {{/* get profile image */}} {{ $profile_image = .profile.image.url }} {{/* get profile url */}} {{ $profile_url = .profile.url }} {{ end }} {{/* END Define template variables */}}
We have many guides for your research. Not sure where to begin? Ask Us.


0.4.5 2011-06-25
- Add explicit require for rsa/sha1 (Juris Galang)
- Use webmock to mock all http-requests in tests (Adrian Feldman)
- Add gemtest support (Adrian Feldman)
- Fix POST Requests with Typhoeus proxy (niedhui)
- Mention Typhoeus require in the README (Kim Ahlström)
- Fix incorrect hardcoded port (Ian Taylor)
- Use Net::HTTPGenericRequest (Jakub Kuźma)
0.4.4 2010-10-31
- Fix LoadError rescue in tests: return can’t be used in this context (Hans de Graaff)
- HTTP headers should be strings. (seancribbs)
- ensure consumer uri gets set back to original config even if an error occurs (Brian Finney)
- Yahoo uses & to split records in OAuth headers (Brian Finney)
- Added support for Rails 3 in client/action_controller_request (Pelle)
0.4.3 2010-09-01
- Fix for em-http proxy (ichverstehe)
0.4.2 2010-08-13
- Fixed compatibility with Ruby 1.9.2 (ecavazos)
- Fixed the em-http request proxy (Joshua Hull)
- Fix for oauth proxy string manipulation (Jakub Suder)
- Added Bundler (rc) Gemfile for easier dev/testing
0.4.1 2010-06-16
- Added support for using OAuth with proxies (Marsh Gardiner)
- Rails 3 Compatibility fixes (Pelle Braendgaard)
- Fixed load errors on tests for missing (non-required) libraries
0.4.0 2010-04-22
- Added computation of oauth_body_hash as per OAuth Request Body Hash 1.0 Draft 4 (Michael Reinsch)
- Added the optional `oauth_session_handle` parameter for the Yahoo implementation (Will Bailey)
- Better marshalling implementation (Yoan Blanc)
- Added optional block to OAuth::Consumer.get_*_token (Neill Pearman)
- Exclude `oauth_callback` with :exclude_callback (Neill Pearman)
- Strip extraneous spaces and line breaks from access_token responses (observed in the wild with Yahoo!’s OAuth+OpenID hybrid) (Eric Hartmann)
- Stop double-escaping PLAINTEXT signatures (Jimmy Zimmerman)
- OAuth::Client::Helper won’t override the specified `oauth_version` (Philip Kromer)
- Support for Ruby 1.9 (Aaron Quint, Corey Donahoe, et al)
- Fixed an encoding / multibyte issue (成田 一生)
- Replaced hoe with Jeweler (Aaron Quint)
- Support for Typhoeus (Bill Kocik)
- Support for em-http (EventMachine) (Darcy Laycock)
- Support for curb (André Luis Leal Cardoso Junior)
- New website (Aaron Quint)
0.3.6 2009-09-14
- Added -B CLI option to use the :body authentication scheme (Seth)
- Respect `—method` in `authorize` CLI command (Seth)
- Support POST and PUT with raw bodies (Yu-Shan Fung et al)
- Test clean-up (Xavier Shay, Hannes Tydén)
- Added :ca_file consumer option to allow consumer specific certificate override. (Pelle)
0.3.5 2009-06-03
- `query` CLI command to access protected resources (Seth)
- Added -H, -Q CLI options for specifying the authentication scheme (Seth)
- Added -O CLI option for specifying a file containing options (Seth)
- Support streamable body contents for large request bodies (Seth Cousins)
- Support for OAuth 1.0a (Seth)
- Added proxy support to OAuth::Consumer (Marshall Huss)
- Added —scope CLI option for Google’s ‘scope’ parameter (Seth)
0.3.4 2009-05-06
- OAuth::Client::Helper uses OAuth::VERSION (chadisfaction)
- Fix OAuth::RequestProxy::ActionControllerRequest’s handling of params (Tristan Groléat)
0.3.3 2009-05-04
- Corrected OAuth XMPP namespace (Seth)
- Improved error handling for invalid Authorization headers (Matt Sanford)
- Fixed signatures for non-ASCII under $KCODE other than ‘u’ (Matt Sanford)
- Fixed edge cases in ActionControllerRequestProxy where params were being incorrectly signed (Marcos Wright Kuhns)
- Support for arguments in OAuth::Consumer#get_access_token (Matt Sanford)
- Add gem version to user-agent header (Matt Sanford)
- Handle input from aggressive form encoding libraries (Matt Wood)
0.3.2 2009-03-23
- 2xx statuses should be treated as success (Anders Conbere)
- Support applications using the MethodOverride Rack middleware (László Bácsi)
- `authorize` command for `oauth` CLI (Seth)
- Initial support for Problem Reporting extension (Seth)
- Verify SSL certificates if CA certificates are available (Seth)
- Fixed ActionController parameter escaping behavior (Thiago Arrais, László Bácsi, Brett Gibson, et al)
- Fixed signature calculation when both options and a block were provided to OAuth::Signature::Base#initialize (Seth)
- Added help to the ‘oauth’ CLI (Seth)
- Fixed a problem when attempting to normalize MockRequest URIs (Seth)
0.3.1 2009-1-26
- Fixed a problem with relative and absolute token request paths. (Michael Wood)
0.3.0 2009-1-25
- Support ActionController::Request from Edge Rails (László Bácsi)
- Correctly handle multi-valued parameters (Seth)
- Added normalized_parameters to OAuth::RequestProxy::Base (Pelle)
- OAuth::Signature.sign and friends now yield the RequestProxy instead of the token when the passed block’s arity is 1. (Seth)
- Token requests are made to the configured URL rather than generating a potentially incorrect one. (Kellan Elliott-McCrea)
- Command-line app for generating signatures. (Seth)
- Improved test-cases and compatibility for encoding issues. (Pelle)
0.2.7 2008-9-10 The lets fix the last release release
- Fixed plain text signatures (Andrew Arrow)
- Fixed RSA requests using OAuthTokens. (Philip Lipu Tsai)
0.2.6 2008-9-9 The lets RSA release
- Improved support for Ruby 1.8.7 (Bill Kocik)
- Fixed RSA verification to support RSA providers now using Ruby and RSA
- Improved RSA testing
- Omit token when signing with RSA
- Added support for ‘private_key_file’ option for RSA signatures (Chris Mear)
- Fixed several edge cases where params were being incorrectly signed (Scott Hill)
- Fixed RSA signing (choonkeat)
0.2.2 2008-2-22 Lets actually support SSL release
- Use HTTPS when required.
0.2 2008-1-19 All together now release
This is a big release, where we have merged the efforts of various parties into one common library. This means there are definitely some API changes you should be aware of. They should be minimal but please have a look at the unit tests.
0.1.2 2007-12-1
- Fixed checks for missing OAuth params to improve performance
- Includes Pat’s fix for getting the realm out.
0.1.1 2007-11-26
- First release as a GEM
- Moved all non-Rails functionality from the Rails plugin: code.google.com/p/oauth-plugin/


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Forecast: Light winds today, increasing showers due over the weekend
by Guy HagiHONOLULU, Hawaii (HawaiiNewsNow) - Light winds and mostly dry weather will hold through Thursday.
A trend towards wetter weather will begin Friday through the weekend as a weak front stalls near Kauai and tropical moisture moves in from the southeast.
Starting Friday, a front will approach Kauai from the northwest.
Meanwhile, a weak surface trough will reach the Big Island from the east. This will bring increasing chances of showers over both Kauai and the Big Island on Friday.
Drier weather is expected for Maui County and Oahu, but a few showers will remain possible during the afternoon.
A solid northwest swell is expected to peak Thursday night and then lower gradually Friday and Saturday with advisory level wave heights.
A larger northwest swell is expected to arrive on Saturday, peak Saturday night, then lower gradually Sunday and Monday.
Surf heights may reach low end warning levels during the peak of this swell..
Copyright 2019 Hawaii News Now. All rights reserved.


var worker = new Worker('worker.js')
worker.onmessage = function (message) {
alert(JSON.stringify(message.data))
})
worker.postMessage('hello!')
Messages can be anything that can be serialized into JSON (objects, arrays, strings, numbers, booleans). See: structured clone
bubbles: false
cancelBubble: false
cancelable: false
clipboardData: undefined
currentTarget: Worker
data: "Hello" ← the data
defaultPrevented: false
eventPhase: 0
lastEventId: ""
origin: ""
ports: Array[0]
returnValue: true
source: null
srcElement: Worker
target: Worker
timeStamp:<PHONE_NUMBER>383
type: "message"
These are the contents of message
on onmessage.


Thanks for reaching out. I'm quite busy right now on many...
Hi Tom! Hate to break it to you, but I'm actually on vacation until...
I received payment. Thanks for cooperation!
Meeting with candidate at 3pm who applied for Bilingual Event Support Specialist
Extend premium plan for next month
Send payment to David Peterson


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USD/INR: Bears continue to guard 71.90 barrier ahead of US data
by Dhwani Mehta- Rupee on a four-day winning streak despite trade deal doubts.
- Lower highs on daily sticks point to further downside.
- All eyes on trade developments and US data for fresh impetus.
The Indian rupee rebounded sharply from daily lows of 71.87 against its American counterpart in the European session, as the USD/INR cross now flirts with daily lows near 71.73 region.
The renewed buying interest seen in the rupee can be mainly attributed to the new foreign trade policy announced by the Indian Foreign Minister Goyal, who said that the new policy will be replaced before end-March 2020.
Despite the latest bounce in the Rupee, the sentiment around the USD/INR pair remains underpinned by the safe-haven buying for the US dollar, in the wake of uncertainty over the US-China trade deal prospects and growing market nervousness.
Also, an Indian private bank dealer said that the Indian currency remains under pressure, as “a large foreign bank’s dollar purchases led to stop-losses getting triggered in the rupee.”
“Minute buying was enough to trigger stop losses in a market where risk appetite is already weak due to trade uncertainty,” he added.
Meanwhile, the recent strength seen in oil prices could also likely remain a drag on the oil-importing currency, the Rupee. Markets now look forward to the US Manufacturing PMI and Consumer Sentiment data for fresh direction. However, the main driver will continue to remain the US-China trade-related developments.
USD/INR Levels to watch
USD/INR
| Overview | |
|---|---|
| Today last price | 71.761 |
| Today Daily Change | 0.0102 |
| Today Daily Change % | 0.01 |
| Today daily open | 71.7508 |
| Trends | |
|---|---|
| Daily SMA20 | 71.3263 |
| Daily SMA50 | 71.1782 |
| Daily SMA100 | 70.7786 |
| Daily SMA200 | 70.2217 |
| Levels | |
|---|---|
| Previous Daily High | 72.105 |
| Previous Daily Low | 71.6995 |
| Previous Weekly High | 72.37 |
| Previous Weekly Low | 70.97 |
| Previous Monthly High | 71.79 |
| Previous Monthly Low | 70.6425 |
| Daily Fibonacci 38.2% | 71.8544 |
| Daily Fibonacci 61.8% | 71.9501 |
| Daily Pivot Point S1 | 71.5985 |
| Daily Pivot Point S2 | 71.4463 |
| Daily Pivot Point S3 | 71.193 |
| Daily Pivot Point R1 | 72.004 |
| Daily Pivot Point R2 | 72.2573 |
| Daily Pivot Point R3 | 72.4095 |


Get in contact with the Göckeler Family
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Timo Göckeler
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If you have any business related or legal questions, or want to know about this domain or this website, all in all in any non-private matter please contact the Webmaster.


{% extends "base.html" %} {% block main %}
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Layouts
Flexbox
Grid
Floats
Flexbox Layout
For a long time, the only reliable cross browser-compatible tools available for creating CSS layouts were things like floats and positioning. These are fine, and they work, but in some ways they are also rather limiting and frustrating.
Flexbox
For Flexibility ( Read More Advantages > )
Vertically centering a block of content inside its parent.
Making all the children of a container take up an equal amount of the available width/height, regardless of how much width/height is available.
Making all columns in a multiple-column layout adopt the same height even if they contain a different amount of content.
Grid
For Flexibility (Read More >>> )
Vertically centering a block of content inside its parent for 2D-grid.
Floats
For Flexibility (Read More >>> )
Vertically centering a block of content inside its parent.
Making all the children of a container take up an equal amount of the available width/height, regardless of how much width/height is available.
Making all columns in a multiple-column layout adopt the same height even if they contain a different amount of content.


Preparation time
less than 30 mins
Cooking time
10 to 30 mins
Serves
Makes 6 large rolls (or 9 dinner rolls)
Dietary
Use these easy soda bread rolls as bowls for serving soup by tearing out some of the bread from the inside.
Preheat the oven to 200C/400F/Gas 6. Sift a tablespoon of white flour over large baking tray.
Put the white and wholemeal flour in a large bowl and stir in the sugar, bicarbonate of soda and sea salt. Tip onto a clean work surface and scoop into a heap. Make a well in the centre.
Mix the yogurt and milk in a large jug until smooth. Pour roughly a fifth of the milk mixture into the well and mix some of the flour into the liquid with a wooden spoon. Add a little more and continue to draw the flour into the liquid. If you have a massive mixing bowl, you can do the mixing in there instead. Keep adding and mixing until all the liquid and flour is combined.
Using your hands, knead the dough for a couple of minutes, or until light and spongy. You may need to add a little extra flour if the dough is sticky, but try not to add too much as you want the bread to be light and airy.
Divide the dough into six portions (or nine if making dinner rolls) and roll into balls. Place on the floured baking tray, evenly spaced apart. Flatten slightly with the palm of your hand until around 4cm/1½in deep.
Brush the rolls with a little milk and bake for 25-35 minutes, or until well risen and golden-brown. The crusts should be nice and crisp and the bottom of each roll should sound hollow when tapped. Larger rolls will take longer to cook. Transfer to a wire rack and leave to cool or serve warm.


pprof
and Remote Servers
In mid-2006, we added an experimental facility to pprof, the tool that analyzes CPU and heap profiles. This facility allows you to collect profile information from running applications. It makes it easy to collect profile information without having to stop the program first, and without having to log into the machine where the application is running. This is meant to be used on webservers, but will work on any application that can be modified to accept TCP connections on a port of its choosing, and to respond to HTTP requests on that port.
We do not currently have infrastructure, such as apache modules, that you can pop into a webserver or other application to get the necessary functionality "for free." However, it's easy to generate the necessary data, which should allow the interested developer to add the necessary support into his or her applications.
To use pprof
in this experimental "server" mode, you
give the script a host and port it should query, replacing the normal
commandline arguments of application + profile file:
% pprof internalweb.mycompany.com:80
The host must be listening on that port, and be able to accept HTTP/1.0
requests -- sent via wget
and curl
-- for
several urls. The following sections list the urls that
pprof
can send, and the responses it expects in
return.
Here are examples that pprof will recognize, when you give them on the commandline, are urls. In general, you specify the host and a port (the port-number is required), and put the service-name at the end of the url.:
http://myhost:80/pprof/heap # retrieves a heap profile http://myhost:8008/pprof/profile # retrieves a CPU profile http://myhost:80 # retrieves a CPU profile (the default) http://myhost:8080/ # retrieves a CPU profile (the default) myhost:8088/pprof/growth # "http://" is optional, but port is not http://myhost:80/myservice/pprof/heap # /pprof/heap just has to come at the end
/pprof/heap
pprof
asks for the url /pprof/heap
to
get heap information. The actual url is controlled via the variable
HEAP_PAGE
in the pprof
script, so you
can change it if you'd like.
The server should respond by calling
MallocExtension::instance()->GetHeapSample(&output);
and sending output
back as an HTTP response to
pprof
. MallocExtension
is defined in the
header file google/malloc_extension.h
.
Here's an example, from an actual Google webserver, of what the output should look like:
heap profile: 9369: 126987529 [ 9369: 126987529] @ heap 2: 1024 [ 2: 1024] @ 0x87da913 0x8923ad4 0x891d4c2 0x892de12 0x8930519 0x83a16c2 0x836cb38 0x834cd1c 0x8349ba5 0x10a3177 0x8349961 1: 36 [ 1: 36] @ 0x87da913 0x83a0929 0x836cb38 0x834cd1c 0x8349ba5 0x10a3177 0x8349961 308: 10092544 [ 308: 10092544] @ 0x87da913 0x8970d66 0x8970e64 0x896e8e2 0x88e69d2 0x88e6add 0x88e6dec 0x88e7384 0x88e73fa 0x8838793 0x8838b36 0x88395f8 0x88f5a4b 0x890d03a 0x890d65a 0x8917666 0x890d1f3 0x890e6e4 0x8349c1b 0x10a3177 0x8349961 [...]
/pprof/growth
pprof
asks for the url /pprof/growth
to
get heap-profiling delta (growth) information. The actual url is
controlled via the variable GROWTH_PAGE
in the
pprof
script, so you can change it if you'd like.
The server should respond by calling
MallocExtension::instance()->GetHeapGrowthStacks(&output);
and sending output
back as an HTTP response to
pprof
. MallocExtension
is defined in the
header file google/malloc_extension.h
.
Here's an example, from an actual Google webserver, of what the output should look like:
heap profile: 741: 812122112 [ 741: 812122112] @ growth 1: 1572864 [ 1: 1572864] @ 0x87da564 0x87db8a3 0x84787a4 0x846e851 0x836d12f 0x834cd1c 0x8349ba5 0x10a3177 0x8349961 1: 1048576 [ 1: 1048576] @ 0x87d92e8 0x87d9213 0x87d9178 0x87d94d3 0x87da9da 0x8a364ff 0x8a437e7 0x8ab7d23 0x8ab7da9 0x8ac7454 0x8348465 0x10a3161 0x8349961 [...]
/pprof/profile
pprof
asks for the url
/pprof/profile?seconds=XX
to get cpu-profiling
information. The actual url is controlled via the variable
PROFILE_PAGE
in the pprof
script, so you can
change it if you'd like.
The server should respond by calling
ProfilerStart(filename)
, continuing to do its work, and
then, XX seconds later, calling ProfilerStop()
. (These
functions are declared in google/profiler.h
.) The
application is responsible for picking a unique filename for
ProfilerStart()
. After calling
ProfilerStop()
, the server should read the contents of
filename
and send them back as an HTTP response to
pprof
.
Obviously, to get useful profile information the application must continue to run in the XX seconds that the profiler is running. Thus, the profile start-stop calls should be done in a separate thread, or be otherwise non-blocking.
The profiler output file is binary, but near the end of it, it should have lines of text somewhat like this:
01016000-01017000 rw-p 00015000 03:01 59314 /lib/ld-2.2.2.so
/pprof/contention
This is intended to be able to profile (thread) lock contention in addition to CPU and memory use. It's not yet usable.
/pprof/cmdline
pprof
asks for the url /pprof/cmdline
to
figure out what application it's profiling. The actual url is
controlled via the variable PROGRAM_NAME_PAGE
in the
pprof
script, so you can change it if you'd like.
The server should respond by reading the contents of
/proc/self/cmdline
, converting all internal NUL (\0)
characters to newlines, and sending the result back as an HTTP
response to pprof
.
Here's an example return value:
/root/server/custom_webserver 80 --configfile=/root/server/ws.config
/pprof/symbol
pprof
asks for the url /pprof/symbol
to
map from hex addresses to variable names. The actual url is
controlled via the variable SYMBOL_PAGE
in the
pprof
script, so you can change it if you'd like.
This is perhaps the hardest request to write code for, because
it must accept POST requests. This means that after the HTTP headers,
pprof will pass in a list of hex addresses connected by
+
, like so:
curl -d '0x0824d061+0x0824d1cf' http://remote_host:80/pprof/symbol
The server should read the POST data, which will be in one line, and for each hex value, should write one line of output to the output stream, like so:
<hex address><tab><function name>
For instance:
0x08b2dabd _Update
The other reason this is the most difficult request to implement,
is that the application will have to figure out for itself how to map
from address to function name. One possibility is to run nm -C
-n <program name>
to get the mappings, either statically
(say at program-compile time), or dynamically, by having the
application call out to nm
for every
pprof/symbol
call (presumably with some caching!).
pprof
itself does just this for local profiles (not
ones that talk to remote servers); look at the subroutine
GetProcedureBoundaries
.


{% extends "base_forms.html" %} {% load crispy_forms_tags %} {% block logo %} {% include "includes/logo.html" %} {% endblock %} {% block content %}
Please fill out this form to request a centrally organised Carpentries workshop. We will ask you about dates, location and workshop type, so please plan to have this information available. Please be advised that a workshop will not be scheduled until it has been confirmed by the host and The Carpentries Workshop Administrator. Our workshops are organised based on the order the Workshop Request Form is received and finalized.
If you would like more information about our workshops before scheduling, please request workshop information. If you are a Member Organisation or Instructor who is coordinating a self-organised workshop please use this form to register your workshop.
{% crispy form %} {% endblock %}


Please answer the following questions to the best of your ability:
Your MEQ score is {{score}}.
Your MEQ score indicates that you are "{{type}}".
MEQ scores range from 16 to 86:
Definitely Evening Type: 16 to 30
Moderately Evening Type: 31 to 41
Neither Type: 42 to 58
Moderately Morning Type: 59 to 69
Definitely Morning Type: 70 to 86
The MEQ was originally developed in 1976 by scientists James Horne and Olov Östberg to quantify a person's time of day preference or "chronotype". The MEQ is still the most widely used chronotype assessment tool in scientific studies today.
Read more about MEQ Types Back to "Lark or Owl" page


SNAKE CLASSIC
Food:
0
Score:
0
Best:
0
Start
Stop
Level:
1
2
3
4
5
6
7
8
9
Controls
Press start(enter) !


Sparse output¶
Many of the descriptors become very sparse when using a large chemical space, or when calculating derivatives. Because of this, DScribe provides the possibility of creating the output in a sparse format. The sparse output simply means that only non-zero entries are stored. This can create significant savings in both RAM and disk usage.
From version 1.0.0 onwards, the sparse output uses the sparse.COO
class
from the sparse library. The main
benefit compared to e.g. the sparse formats provided by scipy is that
sparse.COO
supports n-dimensional sparse output with a convenient
slicing syntax.
Persistence¶
In order to save/load the sparse output you will need to use the sparse.save_npz/sparse.load_npz functions from the sparse library. The following example demonstrates this:
import sparse
from ase.build import molecule
from dscribe.descriptors import SOAP
# Let's create SOAP feature vectors for two structures and all positions. If
# the output sizes are the same for each structure, a single 3D array is
# created.
soap = SOAP(
species=["C", "H", "O"],
periodic=False,
rcut=5,
nmax=8,
lmax=8,
average="off",
sparse=True
)
soap_features = soap.create([molecule("H2O"), molecule("CO2")])
# Save the output to disk and load it back.
sparse.save_npz("soap.npz", soap_features)
soap_features = sparse.load_npz("soap.npz")
Note
Do not confuse sparse.save_npz
/sparse.load_npz
with the
similarly named functions in scipy.sparse
.
Conversion¶
Many external libraries still only support either dense numpy arrays or the 2D
sparse matrices from scipy.sparse
. This is mostly due to the efficient
linear algebra routines that are implemented for them. Whenever you need such
format, you can simply convert the output provided by DScribe to the needed
format with todense(),
tocsr()
or tocsc():
dense = soap_features.todense()
csr = soap_features[0, :, :].tocsr()
csc = soap_features[0, :, :].tocsc()
Note
Because scipy.sparse
only suppports 2D sparse arrays, you can only
call the tocsr()
/tocsc()
-functions on 2D slices.


Achievements/Awards
- Dean of Engineering Award for best bachelors thesis in department
- Recipient of UTokyo-Toyota Scholarship for Artificial Intelligence
- Recipient of JASSO Global Studies Scholarship
- Top 1% in Kaggle Quora Insincere Questions Classification Competition
- Top 4% in Jigsaw Unintended Bias in Toxicity Classification Competition


| Name | Position | Office | Start date | Salary |
|---|---|---|---|---|
| Airi Satou | Accountant | Tokyo | 2008/11/28 | $162,700 |
| Angelica Ramos | Chief Executive Officer (CEO) | London | 2009/10/09 | $1,200,000 |
| Ashton Cox | Junior Technical Author | San Francisco | 2009/01/12 | $86,000 |
| Bradley Greer | Software Engineer | London | 2012/10/13 | $132,000 |
| Brenden Wagner | Software Engineer | San Francisco | 2011/06/07 | $206,850 |
| Brielle Williamson | Integration Specialist | New York | 2012/12/02 | $372,000 |
| Caesar Vance | Pre-Sales Support | New York | 2011/12/12 | $106,450 |
| Cedric Kelly | Senior Javascript Developer | Edinburgh | 2012/03/29 | $433,060 |
| Charde Marshall | Regional Director | San Francisco | 2008/10/16 | $470,600 |
| Colleen Hurst | Javascript Developer | San Francisco | 2009/09/15 | $205,500 |
| Name | Position | Office | Start date | Salary |
|---|
| Name | Position | Office | Start date | Salary |
|---|
| Name | Position | Office | Start date | Salary |
|---|
| Name | Position | Office | Start date | Salary |
|---|


{% extends "registration/registration_base.html" %} {% load i18n %}{% load bootstrap %} {% block title %}{% trans 'Password change' %}{% endblock %} {% block content %}
{% trans "Please enter your old password, for security's sake, and then enter your new password twice so we can verify you typed it in correctly." %}


Instructions (Please read!):
- Design your profile using DraftSight Free. (Video tutorial for drawing a skateboard: https://youtu.be/rA4Z5uRasyc.)
- Use only straight lines and splines - other paths are not yet supported.
- Make sure there are no stray lines or points, and that your profile is closed.
- Export your DraftSight design as a DXF.
- Import your DXF into Inkscape.
- While your profile is selected in Inkscape, click Path -> Combine.
- Click Edit -> Preferences -> Input/Output -> SVG output and set "Path data" to "Absolute". (Relative coordinates are not yet supported.)
- Save your file (Inkscape SVG).
- Using the button below, load your SVG file.
- Click convert.
- Copy and paste the text into your OpenJsCAD script.


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mygis.Admin.AppManager.Maps Class
Functions for the maps in the app manager
Item Index
Methods
addAppMap
()
addAppMapCheck
()
addAppMapResult
()
createAppMapGrid
(
-
appID
Creates the grid for the application's maps
Parameters:
-
appID
IntegerThe application to query
createAppMapGridSource
(
-
appID
Creates the source for the application's maps
Parameters:
-
appID
IntegerThe application to query
mapAllCheck
(
-
elem
Handles the "check all" btn in the map list
Parameters:
-
elem
ElementThe firing element
mapCheckClicked
(
-
elem
Handles the checking of the map list
Parameters:
-
elem
ElementThe firing element
mapDelete
()
Deletes the association of the selected maps with their layers (thus deleting the map)
mapMakeDefault
()
Makes the currently selected map the default one
mapResetSelection
()
Resets the currently selected maps and the assosiated controls
mapSelected
(
-
event
Activates/deactivates some buttons when a map is selected
Parameters:
-
event
Object
mapUnpublish
()
Deletes the association of the selected maps with the app
mapUnselected
(
-
event
Activates/deactivates some buttons when a map is unselected
Parameters:
-
event
Object


{% extends 'base.html' %} {% block title %}Home{% endblock title %} {% load staticfiles%} {% block content %}
Volume Equation: {{ lipid.total_volume_equation }}
Scattering Length: {{ lipid.hg_scattering }}
Number of Electrons: {{ lipid.hg_electrons }}
Headgroup Volume: {{ lipid.hg_volume }}
Scattering Length: {{ lipid.tg_scattering }}
Number of Electrons: {{ lipid.tg_electrons }}
Scattering Length: {{ lipid.tm_scattering }}
Number of Electrons: {{ lipid.tm_electrons }}


Image Attribute. More...
Public Member Functions | |
| (id) | - init |
| Default constructor for a new object. | |
| (void) | - addLaunchPermission: |
| Adds a single object to launchPermissions. | |
| (void) | - addProductCode: |
| Adds a single object to productCodes. | |
| (void) | - addBlockDeviceMapping: |
| Adds a single object to blockDeviceMappings. | |
| (NSString *) | - description |
| Returns a string representation of this object; useful for testing and debugging. | |
Properties | |
| NSString * | imageId |
| The ID of the associated AMI. | |
| NSMutableArray * | launchPermissions |
| Launch permissions for the associated AMI. | |
| NSMutableArray * | productCodes |
| Product codes for the associated AMI. | |
| NSString * | kernelId |
| Kernel ID of the associated AMI. | |
| NSString * | ramdiskId |
| Ramdisk ID of the associated AMI. | |
| NSString * | descriptionValue |
| User-created description of the associated AMI. | |
| NSMutableArray * | blockDeviceMappings |
| Block device mappings for the associated AMI. |
Image Attribute.
| - (void EC2ImageAttribute.)addBlockDeviceMapping: | (EC2BlockDeviceMapping *) | blockDeviceMapping |
Adds a single object to blockDeviceMappings.
This function will alloc and init blockDeviceMappings if not already done.
| - (void EC2ImageAttribute.)addLaunchPermission: | (EC2LaunchPermission *) | launchPermission |
Adds a single object to launchPermissions.
This function will alloc and init launchPermissions if not already done.
| - (void EC2ImageAttribute.)addProductCode: | (EC2ProductCode *) | productCode |
Adds a single object to productCodes.
This function will alloc and init productCodes if not already done.
| - (NSString * EC2ImageAttribute.)description |
Returns a string representation of this object; useful for testing and debugging.
| - (id EC2ImageAttribute.)init |
Default constructor for a new object.
Callers should use the property methods to initialize this object after creating it.


CATMAN(8) Manual pager utils CATMAN(8) NAME catman - create or update the pre-formatted manual pages SYNOPSIS catman [-dhV] [-M path] [-C file] [section] ... DESCRIPTION catman is used to create an up to date set of pre-formatted manual pages known as cat pages. Cat pages are generally much faster to display than the original manual pages, but require extra storage space. The decision to support cat pages is that of the local administrator, who must provide suitable directories to contain them. The options available to catman are the manual page hierarchies and sec‐ tions to pre-format. The default hierarchies are those specified as sys‐ tem hierarchies in the man-db configuration file, and the default sec‐ tions are either the colon-delimited contents of the environment variable $MANSECT or the standard set compiled into man if $MANSECT is undefined. Supplying catman with a set of whitespace-delimited section names will override both of the above. catman makes use of the index database cache associated with each hierar‐ chy to determine which files need to be formatted. OPTIONS -d, --debug Print debugging information. -M path, --manpath=path Specify an alternate colon-delimited manual page hierarchy search path. By default, this is all paths indicated as system hierar‐ chies in the man-db configuration file. -C file, --config-file=file Use this user configuration file rather than the default of ~/.manpath. -h, --help Print a help message and exit. -V, --version Display version information. ENVIRONMENT MANSECT If $MANSECT is set, its value is a colon-delimited list of sec‐ tions and it is used to determine which manual sections to search and in what order. MANPATH If $MANPATH is set, its value is interpreted as the colon-delim‐ ited manual page hierarchy search path to use. FILES /etc/manpath.config man-db configuration file. /usr/man/index.(bt|db|dir|pag) A traditional global index database cache. /var/catman/index.(bt|db|dir|pag) An alternate or FSSTND compliant global index database cache. SEE ALSO man(1), manpath(5), mandb(8) AUTHOR Wilf. (G.Wilford@ee.surrey.ac.uk). Fabrizio Polacco (fpolacco@debian.org). Colin Watson (cjwatson@debian.org). 2.6.2 2012-06-18 CATMAN(8)


{% extends "base2.html" %} {% block head_meta %}
Instructor:
* Should you wish to evaluate another course or instructorplease delete this evaluation and post a new one.
Are you sure to delete this comment? * Should you wish to evaluate another course or instructorplease delete this evaluation and post a new one.


The Latest: Twitter: Tools protect sensitive accounts
SAN FRANCISCO (AP) - The Latest on two former Twitter employees charged with accessing personal account information on behalf of the Saudi government. (all times local):
3 p.m.
Twitter has acknowledged that it cooperated in a U.S. investigation of two former employees accused of accessing personal account information on behalf of the Saudi government.
The social media company said in a statement Wednesday it recognizes “the length bad actors will go to try and undermine” its service, and that there are tools in place to protect users with sensitive accounts.
The statement came as U.S. prosecutors detailed a coordinated effort by Saudi officials to recruit employees at the social media giant to look up the private data of thousands of Twitter accounts.
The Saudi government had no immediate comment through its embassy in Washington.
2:09 p.m.
U.S. prosecutors say the Saudi government recruited two Twitter employees to get personal account information of their critics.
The complaint unsealed Wednesday in U.S. District Court in San Francisco detailed a coordinated effort by Saudi officials to recruit employees at the social media giant to look up the private data of thousands of Twitter accounts.
The accounts included those of a popular journalist with more than 1 million followers and other prominent government critics.
It also alleged that the employees - whose jobs did not require access to Twitter users’ private information - were rewarded with a designer watch and tens of thousands of dollars funneled into secret bank accounts.
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Please read our comment policy before commenting.


‘A fathomless and boundless deep, There we wander, there we weep; On the hungry craving wind My Spectre follows thee behind.
‘He scents thy footsteps in the snow Wheresoever thou dost go, Thro’ the wintry hail and rain. When wilt thou return again?
‘He scents thy footsteps in the snow Wheresoever thou dost go, Thro’ the wintry hail and rain. When wilt thou return again?
‘He scents thy footsteps in the snow Wheresoever thou dost go, Thro’ the wintry hail and rain. When wilt thou return again?
‘He scents thy footsteps in the snow Wheresoever thou dost go, Thro’ the wintry hail and rain. When wilt thou return again?
‘He scents thy footsteps in the snow Wheresoever thou dost go, Thro’ the wintry hail and rain. When wilt thou return again?
‘He scents thy footsteps in the snow Wheresoever thou dost go, Thro’ the wintry hail and rain. When wilt thou return again?


How Aaron Wilbraham and Lee Johnson got into screaming match in Bristol City boss's office
The former City striker has been talking about a falling out he had with the Robins head coach
by Max BakerEx-Bristol City forward Aaron Wilbraham has spoken about the time he and Lee Johnson were 'screaming in each other's faces' in the manager's office.
In a tell-all podcast for Undr the Cosh, Wilbraham has spoken about life at City, his relationship with the Robins boss much more.
He was a big favourite at Ashton Gate, helping City achieve promotion to the Championship in 2014/15 and going on to captain the side.
He won the League One title and the EFL Trophy while winning the hearts of City fans.
In the podcast, Wilbraham describes a time he and Johnson fell out over the actions of his agent towards academy graduate Joe Bryan.
Johnson wasn't happy with the way Wilbraham facilitated a chat between the two, and accused him of 'touting' the youngster.
Wilbraham said he Johnson got into a heated exchange over the situation, but did admit that he was a 'good coach'.
Johnson joined City in 2016, the year before Wilbraham left the club.
In the podcast, Wilbraham said: "He's another manager who is younger than me. He was probably a little bit wary.
"He's alright.
"My agent wanted to have a chat with Joe Bryan. He said to me 'you've got Brentford away tomorrow night, you're in the hotel, I might come down and have a chat with Joe'.
"I said to Will (the agent), don't do that the day before a game, managers don't like that. He said alright but said to ask Joe if he was interested.
"I spoke to Joe myself and said Will wants a chat. Joe said potentially, when it's the right time.
"I wasn't touting him up, I'm not getting anything if he wants to have a chat with my agent."
Wilbraham said his agent tried to have a chat with Joe at a later game.
He said: "We played Cardiff away and my agent was at the game and said he'd have a chat with Joe after.
"We were getting on the bus after the game and my agent walked up to Joe and had a five minute chat.
"We get back to the training ground and Johnson said he wants a word. He's fuming because we've been beaten.
"He told me the club pays me a lot of money to play football, not to tout our young lads to agents.
"I said: 'Hang on gaffer. I'm with Will, you know him. He's asked me if he can come to Brentford last week and I've said no, because you won't like it. I've been professional enough to say no'.
"I said: 'What can I do if he's at the Cardiff game and he just wants to have a chat with Joe'?
"Johnson said Joe had told his (current) agent, and now his agent was ringing the chief executive and the chief exec was going at him (Johnson).
"Joe ended up bringing me a bottle of champagne the next day saying he had stitched me up. I said it was alright.
"You get agents like that. I fell out with Johnson over that, we were screaming in each other's faces in his office.
"We had a few blow outs but we were fine. A lot of people found him a bit arrogant but he was a good coach."
Get lots more news, opinion and transfer updates on our Bristol City FC page and add a bookmark to find it quickly next time.


I'm basically a web ninja though not really, as ninjas don't code, they kill.
Write stuff, in non-english, for computers to read.
You want some of this? Do ya? C'mon then!.
I like to make the web look pretty
Days spent trawling other people's lives
I'm blind in one eye.


[Intro] D Asus4 D Asus4 D Asus4 G Asus4 e|-----2---------0----------2---------0-----| B|-------3---------3----------2----------3--| G|----2-------------------------------------| D|--0----------2--------------------2-------| A|-----------0------------2-------0---------| E|----------------------3-------------------| [Verse] D Asus4 G Asus4 I would have given you all of my heart D Asus4 G Asus4 but there's someone who's torn it apart D Asus4 G Asus4 and he's taking almost all I have D Asus4 G Asus4 but if you want, I'll try to love again baby D Asus4 G Asus4 I'll try to love again but I know [Chorus] D Asus4 G Asus4 The first cut is the deepest, baby I know D Asus4 G Asus4 The first cut is the deepest D Asus4 G Asus4 'cause when it comes to being lucky he's cursed D Asus4 G Asus4 A5 when it comes to lovin' me he's worst [Verse] D Asus4 G Asus4 I still want you by my side D Asus4 G Asus4 just to help me dry the tears that I've cried D Asus4 G Asus4 cause I'm sure gonna give you a try D Asus4 G Asus4 and if you want, I'll try to love again but baby, D Asus4 G Asus4 I'll try to love again, but I know [Chorus] D Asus4 G Asus4 The first cut is the deepest, baby I know D Asus4 G Asus4 The first cut is the deepest D Asus4 G Asus4 'cause when it comes to being lucky he's cursed D Asus4 G Asus4 A5 when it comes to lovin' me he's worst [Solo] D Asus4 G Asus4 x2 [Verse] D Asus4 G Asus4 I still want you by my side D Asus4 G Asus4 just to help me dry the tears that I've cried D Asus4 G Asus4 cause I'm sure gonna give you a try D Asus4 G Asus4 and if you want, I'll try to love again but baby, D Asus4 G Asus4 A5 I'll try to love again, but I know [Chorus] D Asus4 G Asus4 The first cut is the deepest, baby I know D Asus4 G Asus4 The first cut is the deepest D Asus4 G Asus4 'cause when it comes to being lucky he's cursed D Asus4 G Asus4 when it comes to lovin' me he's worst D Asus4 G Asus4 The first cut is the deepest, baby I know D Asus4 G Asus4 D The first cut is the deepest Try to love again Ok so, the more observant of you will know that its the same all the way through save the odd A5. I don't now if thats how its played on the song but it sounds like it. Please rate this


Hebrew Transliteration Helper
Transliteration
Made with ♥ by
James Cuénod
. Want to contribute:
code
/
love


{{extend 'layout.html'}} {{block statusbar}} {{end}} {{block moreincludes}} {{end}}
Last updated: August 16, 2019
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Deploying to Kubernetes
Estimated reading time: 6 minutes- Orientation and setup
- Containerizing an application
- Deploying to Kubernetes
- Deploying to Swarm
- Sharing images on Docker Hub
Prerequisites
- Work through containerizing an application in Part 2.
- Make sure that Kubernetes is enabled on your Docker Desktop:
- OSX: click the Docker icon in your menu bar and make sure there’s a green light beside ‘Kubernetes is Running’
- Windows: click the Docker icon in the system tray and navigate to Kubernetes, and make sure there’s a green light beside ‘Kubernetes is Running’.
If Kubernetes isn’t running, follow the instructions in Part 1 of this tutorial to finish setting it up.
Introduction
Now that we’ve demonstrated that the individual components of our application run as stand-alone containers, it’s time to arrange for them to be managed by an orchestrator like Kubernetes. Kubernetes provides many tools for scaling, networking, securing and maintaining your containerized applications, above and beyond the abilities of containers themselves.
In order to validate that our containerized application works well on Kubernetes, we’ll use Docker Desktop’s built in Kubernetes environment right on our development machine to deploy our application, before handing it off to run on a full Kubernetes cluster in production. The Kubernetes environment created by Docker Desktop is fully featured, meaning it has all the Kubernetes features your app will enjoy on a real cluster, accessible from the convenience of your development machine.
Describing Apps Using Kubernetes YAML
All containers in Kubernetes are scheduled as pods, which are groups of co-located containers that share some resources. Furthermore, in a realistic application we almost never create individual pods; instead, most of our workloads are scheduled as deployments, which are scalable groups of pods maintained automatically by Kubernetes. Lastly, all Kubernetes objects can and should be described in manifests called Kubernetes YAML files; these YAML files describe all the components and configurations of your Kubernetes app, and can be used to easily create and destroy your app in any Kubernetes environment.
 Place the following in a file called
bb.yaml
:apiVersion: apps/v1 kind: Deployment metadata: name: bb-demo namespace: default spec: replicas: 1 selector: matchLabels: bb: web template: metadata: labels: bb: web spec: containers: - name: bb-site image: bulletinboard:1.0 --- apiVersion: v1 kind: Service metadata: name: bb-entrypoint namespace: default spec: type: NodePort selector: bb: web ports: - port: 8080 targetPort: 8080 nodePort: 30001
In this Kubernetes YAML file, we have two objects, separated by the
---
:- A
Deployment
, describing a scalable group of identical pods. In this case, you’ll get just onereplica
, or copy, of your pod, and that pod (which is described under thetemplate:
key) has just one container in it, based off of yourbulletinboard:1.0
image from the previous step in this tutorial. - A
NodePort
service, which will route traffic from port 30001 on your host to port 8080 inside the pods it routes to, allowing you to reach your bulletin board from the network.
Also notice that while Kubernetes YAML can appear long and complicated at first, it almost always follows the same pattern:
- The
apiVersion
, which indicates the Kubernetes API that parses this object - The
kind
, indicating what sort of object this is - Some
metadata
, applying things like names to your objects - The
spec
, specifying all the parameters and configurations of your object.
- A
Deploying and Checking Your Application
-
In a terminal, navigate to where you created
bb.yaml
and deploy your application to Kubernetes:kubectl apply -f bb.yaml
you should see output that looks like the following, indicating your Kubernetes objects were created successfully:
deployment.apps/bb-demo created service/bb-entrypoint created
-
Make sure everything worked by listing your deployments:
kubectl get deployments
if all is well, your deployment should be listed as follows:
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE bb-demo 1 1 1 1 48s
This indicates all one of the pods you asked for in your YAML are up and running. Do the same check for your services:
kubectl get services NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE bb-entrypoint NodePort <IP_ADDRESS> <none> 8080:30001/TCP 53s kubernetes ClusterIP <IP_ADDRESS> <none> 443/TCP 138d
In addition to the default
kubernetes
service, we see ourbb-entrypoint
service, accepting traffic on port 30001/TCP. -
Open a browser and visit your bulletin board at
localhost:30001
; you should see your bulletin board, the same as when we ran it as a stand-alone container in the previous step of this tutorial. -
Once satisfied, tear down your application:
kubectl delete -f bb.yaml
Conclusion
At this point, we have successfully used Docker Desktop to deploy our application to a fully-featured Kubernetes environment on our development machine. We haven’t done much with Kubernetes yet, but the door is now open: you can begin adding other components to your app and taking advantage of all the features and power of Kubernetes, right on your own machine.
In addition to deploying to Kubernetes, we have also described our application as a Kubernetes YAML file. This simple text file contains everything we need to create our application in a running state; we can check it into version control and share it with our colleagues, allowing us to distribute our applications to other clusters (like the testing and production clusters that probably come after our development environments) easily.
Kubernetes References
Further documentation for all new Kubernetes objects used in this article are available here:
kubernetes, pods, deployments, kubernetes services


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As well as all of our ongoing project work, we continue to invest in R&D, developing online apps, better modelling techniques and exploring new data; write short and long-form articles on our findings; and deliver conference papers aimed at improving the planning and development of our cities and towns.
Our team includes economists, demographers, planners, data scientists and software developers. We combine a depth of experience with new talent and energy and work with a set of regular collaborators when we need to scale up.
Everyone at Geografia wants to share ideas to improve the places we live in and the way we all work. We share some of these ideas through these posts.


Eventually a space to discover, a canvas to color, a mistery to unravel. Living at full speed is like floating in a bubble that I want to share with you all.
One more screen to complete a painting of my spiritual world. A world where dreams come true and butterflies fly along the edges of town.


Oisín Henry
Education
- DCU - Computer Applications (Software Engineering)
- Final Semester
- Currently working on final year project
- Searching for a full time SDE/Graduate position 2021
Skills
- Experienced in Python
- Low level Linux work / sh scripting
- Git version control / CI/CD pipelines
- Comfortable with Java and frontend js frameworks
Projects
Me
Other Links


---
layout: post
title: Useless Trivia about Windows Process IDs
date: 2015-02-20 11:05:14.000000000 -05:00
categories: blog
---
Here are somethings I discovered about Windows Process IDs that I did not previously know...
ProcessIDs are stored as DWORDs.
A DWORD is a 32-bit unsigned integer (range: 0 through<PHONE_NUMBER> decimal).
ProcessIDs are divisible by 4 so the highest possible pid is 4,294,967,292.
Since they are divisible by 4, there are only 1,073,741,823 possible PIDs.
I wrote a script to keep launching and closing "calc.exe" until it gave me the PID I wanted.
On average, it took around 103 tries to get the pid I wanted.
I knew PIDs get reused all the time but its weird that it happens so often.
The whole problem with the sysmonmap from here
is that there was a PID reused in under a second. That has got to cause other problems than just logging.
I am not investing any actual research time on this but I am documenting the trivia nonetheless.


NEWS.md
Major change Split into two packages, namely:
emeScheme version 0.9.5
added descriptions of validation results and details to validate() function
added version info to package and to xml exports
added warning to enter_new_metadata() if format = TRUE as it sometimes leads to corrupt files. using format = FALSE fixes this, but the file still contains the example data.
Due to change in serialization format in R 3.6.0, only compatible with R >= 3.5.0
suggestedValues validation has been, in case of a fail, be declassified as a Note (previous: Warning).
Include wildcards and regular expressions in columnName in DataFileMetaData. Wildcards (i.e. * and ?) have to be enclosed by three exclamation marks (!!!
), e.g. Species_!!!*!!!
which will match all Species_1
as well as Species_Not KnownSoFar
. Regular expressions do not need to be enclosed with any special characters.
fix error where a minimum of two rows were imported, even if the second one contains only NAs. Introduced an exclusion of all NA rows (commit db53c83).
Add error level to print of validation results
Add xml import to re-import xml data and validate certain features (types) during the import.
This should finalise the spreadsheet


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