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Is file append atomic in UNIX?

In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it po...
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Getting the error “Java.lang.IllegalStateException Activity has been destroyed” when using tabs with

I have an application that consists of using ActionBarSherlock in tab mode.I have 5 tabs and the content of each tab is handled using fragments. For tab2 though, I have a fragment the xml file of which holds a ViewPager element which in turn has some fragment pages. When I initially start the applic...
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What are Java command line options to set to allow JVM to be remotely debugged?

...-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 <YourAppName> For java 1.4: java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 <YourAppName> For java 1.3: java -Xnoagent -Djava.compiler=NONE -Xdebug -Xrunjdwp:transport=dt_socket,server=y,...
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What's the difference between Task.Start/Wait and Async/Await?

... windows messages, each one of which does a little bit of work? Now what happens? You return control to the message loop, it starts pulling messages out of the queue, doing a little bit of work each time, and the last job that's done is "execute the continuation of the task". No extra thread! ...
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how to read System environment variable in Spring applicationContext

How to read the system environment variable in the application context? 11 Answers 11 ...
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Descending order by date filter in AngularJs

... And a code example: <div ng-app> <div ng-controller="FooController"> <ul ng-repeat="item in items | orderBy:'num':true"> <li>{{item.num}} :: {{item.desc}}</li> </ul> </div> </...
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GitHub authentication failing over https, returning wrong email address

... @ele try the .netrc approach first (don't even encrypt, just for testing). If that doesn't work, the GitHub support is indeed the next step. – VonC Jan 4 '14 at 6:47 ...
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How do I restart a WPF application? [duplicate]

How can I restart a WPF Application? In windows Forms I used 8 Answers 8 ...
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How to present popover properly in iOS 8

I'm trying to add a UIPopoverView to my Swift iOS 8 app, but I am unable to access the PopoverContentSize property, as the popover does not show in the correct shape. my code: ...
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hadoop No FileSystem for scheme: file

...is a typical case of the maven-assembly plugin breaking things. Why this happened to us Different JARs (hadoop-commons for LocalFileSystem, hadoop-hdfs for DistributedFileSystem) each contain a different file called org.apache.hadoop.fs.FileSystem in their META-INFO/services directory. This file l...