[Bugs] [Bug 1426291] New: possible memory leak in glusterfsd with multiplexing

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1426291

            Bug ID: 1426291
           Summary: possible memory leak in glusterfsd with multiplexing
           Product: GlusterFS
           Version: 3.10
         Component: core
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: kramdoss at redhat.com
                CC: bugs at gluster.org



Description of problem:
On a 3 node containerized gluster cluster with brick multiplexing enabled, with
500 volumes created, started and mounted, memory consumption on the gluster
node seems to be slowly raising without any IO operation being run on any of
the volumes. glusterfsd process seems to be consuming 60% of memory i.e., 28 GB
of 48 GB of available memory.

Although it is not clear if there is actually a leak, filing this bug so dev
can check if there is one.

I've collected statedump for one of the volume with a gap of 2 days. I'll be
attaching them shortly.

How reproducible:
Yet to try

Steps to Reproduce:
1. create 3 node containerized gluster cluster
2. enable brick multiplexing - cluster.brick-multiplex on
3. create 500 volume and monitor memory consumption of glusterfsd process

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