[Openstack] [Swift] rsyslog daemon reloading causes swift related services hangs and CPU reach to 100%

Kuo Hugo tonytkdk at gmail.com
Thu Jun 21 16:00:26 UTC 2012


Hi folks ,

We're facing an issue related to the bug as below

/dev/log rotations can cause object-server failures
                                https://bugs.launchpad.net/swift/+bug/780025

My Swift version : 1.4.9

But I found that not only object-server but also all swift related workers
those log through rsyslog.
There's a easy way to reproduce it ,
1. Run swift-bench
2. restart/stop rsyslog during swift-bench progress....

You can see that all CPU usage reach to 100%

Should it be an additional bug ? If so , I can file it .

Is there anyway to improve this behavior ? I expect that all swift workers
should keep working even though that rsyslog dead or restart.

Any suggestion would be appraciate :)

Thanks


-- 
+Hugo Kuo+
tonytkdk at gmail.com
+ <tonytkdk at gmail.com>886 935004793
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