[Gluster-users] memory leak in glusterd 3.7.x

Zdenek Styblik zdenek.styblik at showmax.com
Fri Aug 19 13:40:55 UTC 2016


we've found a memory leak in glusterd v3.7.x(currently at v3.7.14, but
we are users of v3.7.x from the beginning).
It seems, we've empirically verified, that continuous execution of %
gluster volume set <volname> <key> <value>; leads to memory leaks in
glusterd and OOM, although not necessarily OOM of glusterd itself.
Settings which were being set over and over again are
`nfs.addr-namelookup false` and `nfs.disable true`. There might have
been other settings, but I was able to find these in recent logs.
Unfortunately, we don't have capacity to debug this issue
further(statedumps are quite overwhelming :] ).
Repeated execution has been caused due to bug in Puppet module we're
using(and we were able to address this issue). Therefore, it's safe to
say that the number of affected users or like hood of somebody else
having these problem is probably low. It's still a memory leak and,
well, rather serious one if you happen to stumble upon it. Also, it
must be noted that this gets amplified if you have more than just

If there is anything I can help with, let me know.

Please, keep me on CC as I'm not subscribed to the mailing list.

Best regards,
Zdenek Styblik

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