Am 07.06.2010 14:27, Daniel Maher wrote: > On 06/07/2010 02:24 PM, Tomasz Chmielewski wrote: > >>>> What distro ? What kernel version ? Hardware specs ? >>> >>> Debian Lenny, 64 bit, 2.6.26 kernel. >>> The specs are "more or less" high end. >>> >>> I see there is a bug entry describing a similar issue: >>> >>> http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=902 >>> >>> but I don't use any NFS/translators here, so not sure if it's the same >>> or not. >>> >>> The bug also points to a different bug in io-cache, which I also use - >>> so I'll try to disable it and see if it changes anything. >> >> Unfortunately, it still hangs, even if I comment out the io-cache >> section from my gluster client configuration. >> >> Any hints on how to debug this would be appreciated. > > Is it just IOZone that creates undesirable operating conditions, or have > you tried other testing tools as well ? I've seen some curious "hangs" once a month or so with glusterfs 2.x and "normal" system usage - but I didn't have a way to reproduce it (I didn't try iozone, though). I upgraded to glusterfs 3.0.4 and hoped it will cure my hangs, then thought it's a good idea to test it with iozone... And hence the hangs. So no, other than iozone, I don't have any other way to reproduce it. -- Tomasz Chmielewski http://wpkg.org
