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How to set up Spark on Windows?
...gest you install Spark on a linux virtual machine. The simplest way to get started probably is to download the ready-made images made by Cloudera or Hortonworks, and either use the bundled version of Spark, or install your own from source or the compiled binaries you can get from the spark website.
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
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2、启动saslauthd服务，并设为开机启动
service saslauthd start
chkconfig saslauthd on
三、编译安装postfix
说明：RHEL5中的postfix rpm包不支持基于mysql认证功能，所以这里要源码编译安装postfix
从配置简单方面考虑，我们根据postfix的默...
How to stop C++ console application from exiting immediately?
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If you are using Visual Studio and you are starting the console application out of the IDE:
pressing CTRL-F5 (start without debugging) will start the application and keep the console window open until you press any key.
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How to set entire application in portrait mode only?
...on subclass in your project. In its onCreate(), called when your app first starts up, you register an ActivityLifecycleCallbacks object (API level 14+) to receive notifications of activity lifecycle events.
This gives you the opportunity to execute your own code whenever any activity in your app is...
Learning Ruby on Rails
...tly more appealing personally for development. Particularly now that I've started using git, the implementation is cleaner on linux.
Currently I'm dual booting and getting closer to running Ubuntu full time. I'm using gedit with various plugins for the development environment. And as of late 2010...
For homebrew mysql installs, where's my.cnf?
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There is no my.cnf by default. As such, MySQL starts with all of the default settings. If you want to create your own my.cnf to override any defaults, place it at /etc/my.cnf.
Also, you can run mysql --help and look through it for the conf locations listed.
Default op...
Viewing full output of PS command
...list of output fields, otherwise it will be truncated.
ps -A -o args,pid,lstart gives
/usr/lib/postgresql/9.5/bin 29900 Thu May 11 10:41:59 2017
postgres: checkpointer proc 29902 Thu May 11 10:41:59 2017
postgres: writer process 29903 Thu May 11 10:41:59 2017
postgres: wal writer proces 29904 T...
How do I run Visual Studio as an administrator by default?
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Try the following steps on Windows 10:
Search for Visual Studio on the Start window and select "Open file location":
Select "Troubleshoot compatibility" :
Select "troubleshoot program":
Raise permissions:
Select "Yes, save these settings for this program"
Select "Close"
Once that is...
SQL Server Operating system error 5: “5(Access is denied.)”
I am starting to learn SQL and I have a book that provides a database to work on. These files below are in the directory but the problem is that when I run the query, it gives me this error:
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How to make a phone call in android and come back to my activity when the call is done?
...most likely need to trigger the listener actions to wait for a the call to start (wait until changed from PHONE_STATE_OFFHOOK to PHONE_STATE_IDLE again) and then write some code to bring your app back up on the IDLE state.
you may need to run the listener in a service to ensure it stays up and yo...