[Gluster-users] Complete machine lockup, v3.4.2

[James]

On Tue, Feb 18, 2014 at 8:12 AM, Laurent Chouinard
<laurent.chouinard at ubisoft.com> wrote:
> Before the system freeze, the last thing the kernel seemed to be doing is
> killing HTTPD threads (INFO: task httpd:7910 blocked for more than 120
> seconds.)  End-users talk to Apache in order to read/write from the Gluster
> volume, so it seems a simple case of “something wrong” with gluster which
> locks read/writes, and eventually the kernel kills them.


If the kernel was killing things, check that it wasn't the OOM killer.
If so, you might want to ensure you've got swap, enough memory, check
if anything is leaking, and finally if you have memory management
issues between services, cgroups might be the thing to use to control
this.

HTH,
James