[Bugs] [Bug 1545142] New: GlusterFS - Memory Leak during adding directories

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1545142

            Bug ID: 1545142
           Summary: GlusterFS - Memory Leak during adding directories
           Product: GlusterFS
           Version: 3.10
         Component: core
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: mhorban at vidscale.com
                CC: bugs at gluster.org



Description of problem:
ENV:
Volume Name: strg1-volume
Type: Distributed-Replicate
Volume ID: 8f9ab414-d76c-459b-b4ff-c11e18850675
Status: Started
Snapshot Count: 0
Number of Bricks: 192 x 2 = 384
Transport-type: tcp

Steps to Reproduce:
1. Check memory usage of glusterfsd
In my case it is about 35Mb
2. Create 100000 empty directories 
for i in {00000..99999} ; do mkdir "DIR_${i}" ; done
3. Check that memory consumption is much bigger than in step 1.
In my case it is about 150Mb
4. unmount/mount gluster fs to restart services.
5. Call listing of the directory with created 100000 directories to filling
dht.
6. check that memory consumption is much less than in step 3.
In my case it is about 38 Mb

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