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Circus is a program that will let you run and watch multiple processes and sockets.

Project description

Circus is a program that runs and watches processes and sockets.

Circus can be used as a library or through the command line.

For more information about the motivation for this project, see this blog post.

Build Status

Links:

CHANGES

0.5 - 2012-07-06

  • added socket support

  • added a listsocket command

  • sockets have stats too !

  • fixed a lot of small bugs

  • removed the wid - now using pid everywhere

  • faster tests

  • changed the variables syntax

  • use pyzmq’s ioloop in more places

  • now using iowait for all select() calls

  • incr/decr commands now have an nbprocess parameter

  • Add a reproduce_env option to watchers

  • Add a new UNEXISTING status to the processes

  • Added the global httpd option to run circushttpd as a watcher

0.4 - 2012-06-12

  • Added a plugin system

  • Added a “singleton” option for watchers

  • Fixed circus-top screen flickering

  • Removed threads from circus.stats in favor of zmq periodic callbacks

  • Enhanced the documentation

  • Circus client now have a send_message api

  • The flapping feature is now a plugin

  • Every command line tool have a –version option

  • Added a statsd plugin (sends the events from circus to statsd)

  • The web UI now uses websockets (via socketio) to get the stats

  • The web UI now uses sessions for “flash messages” in the web ui

0.3.4 - 2012-05-30

  • Fixed a race condition that prevented the controller to cleanly reap finished processes.

  • Now check_flapping can be controlled in the configuration. And activated/deactivated per watcher.

0.3.3 - 2012-05-29

  • Fixed the regression on the uid handling

0.3.2 - 2012-05-24

  • allows optional args property to add_watcher command.

  • added circushttpd, circus-top and circusd-stats

  • allowing Arbiter.add_watcher() to set all Watcher option

  • make sure the redirectors are re-created on restarts

0.3.1 - 2012-04-18

  • fix: make sure watcher’ defaults aren’t overrided

  • added a StdoutStream class.

0.3 - 2012-04-18

  • added the streaming feature

  • now displaying coverage in the Sphinx doc

  • fixed the way the processes are killed (no more SIGQUIT)

  • the configuration has been factored out

  • setproctitle support

0.2 - 2012-04-04

  • Removed the show name. replaced by watcher.

  • Added support for setting process rlimit.

  • Added support for include dirs in the config file.

  • Fixed a couple of leaking file descriptors.

  • Fixed a core dump in the flapping

  • Doc improvments

  • Make sure circusd errors properly when another circusd is running on the same socket.

  • get_arbiter now accepts several watchers.

  • Fixed the cmd vs args vs executable in the process init.

  • Fixed –start on circusctl add

0.1 - 2012-03-20

  • initial release

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