...y persistent messages rabbitmqctl stop_app rabbitmqctl reset rabbitmqctl start_app The rabbitmq documentation says that the reset command: Returns a RabbitMQ node to its virgin state. Removes the node from any cluster it belongs to, removes all data from the management database, such...

... Our experience with Designer started in Qt3. Qt3 At that point, Designer was useful mainly to generate code that you would then compile into your application. We started using for that purpose but with all generated code, once you edit it, you can no l...

...ocesses. (A hypothetical pushd command might do the chdir(2) call and then start a new shell, but ... it wouldn't be very usable.) pushd is a shell builtin, just like cd. So, either change your script to start with #!/bin/bash or store the current working directory in a variable, do your work, then...

...plication_production pool: 5 username: my_application password: 4) Start the postgres shell with this command: $ psql 4a) You may get this error if your current user (as in your computer user) doesn't have a corresponding administration postgres role. psql: FATAL: role "your_username" d...

...p.ini 下面我们就要启动PHP-FPM #/usr/local/php/sbin/php-fpm start 在启动PHP-FPM时会报上面这个错误，原因是PHP-FPM自己不知道以那个用户和组运行PHP，所以我们要修改一个文件，把文件中的注释去掉即可（打开文件把红色部分删除...

... the java runtime environment must call the main method to start your application. it couldn't do that when it were private. – Philipp Sep 4 '12 at 20:44 add a...

...mpare two blocks of code / functions quickly you could do: import timeit start_time = timeit.default_timer() func1() print(timeit.default_timer() - start_time) start_time = timeit.default_timer() func2() print(timeit.default_timer() - start_time) ...

I am starting to depend heavily on the IPython notebook app to develop and document algorithms. It is awesome; but there is something that seems like it should be possible, but I can't figure out how to do it: ...

...ce the release of MVC 4 System.Web.Optimization is now obsolete. If you're starting with a blank solution you will need to install the following nuget package: Install-Package Microsoft.AspNet.Web.Optimization You will still need to reference System.Web.Optimization in your web.config files. For ...

...s some useful functions for detecting and debugging memory leaks. I would start with this article: https://msdn.microsoft.com/en-us/library/x98tx3cf(v=vs.140).aspx Here is the quick summary of those articles. First, include these headers: #define _CRTDBG_MAP_ALLOC #include <stdlib.h> #incl...