I think in general sending a SIGKILL (9) to a process should be done in exceptional cases, and not as a part of a normal shutdown. Typically applications respond to SIGTERM (15) to shutdown in an orderly manner. <br><br>I'm not sure of the details of CouchDB, but BEAM response to SIGTERM in a reasonable way and terminates gracefully.<br>
<br clear="all">--DS<br>
<br><br><div class="gmail_quote">2009/5/21 Eric Hanchrow <span dir="ltr"><<a href="mailto:eric.hanchrow@gmail.com">eric.hanchrow@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I've got a system that manages child processes, and stops those<br>
processes by simply sending them a fatal signal -- in Unix parlance,<br>
it does "kill -9 <process ID>". The process that it currently manages<br>
deal gracefully with being killed, but I'm hoping to add rabbitmq to<br>
this system, and would prefer not to have to write any special code<br>
for it -- that is, I'd like to be able to stop it, too, by sending it<br>
a fatal signal. Is this a reasonable thing to do? In particular, can<br>
I expect that whatever it's written to disk will remain consistent?<br>
<br>
As it happens, I am not using, and don't plan to use, any persistent<br>
queues; I assume this fact increases the chances I'll get away with<br>
this.<br>
<br>
Also, I've tried killing rabbitmq and restarting it, with clients<br>
connected, and have not observed anything alarming. I _did_ see a log<br>
message or two like this<br>
<br>
=INFO REPORT==== 21-May-2009::15:24:28 ===<br>
Repaired persister log - 1 recovered, 0 bad<br>
<br>
... but I figure those are _good_ signs, not bad.<br>
<br>
So: dumb idea, or perfectly fine?<br>
<br>
Thanks.<br>
<br>
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</blockquote></div><br>