[Bugs] [Bug 1806823] New: glusterfsd consume big amount of memory in case of multiple client IO, after finish, memory does not drop

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1806823

            Bug ID: 1806823
           Summary: glusterfsd consume big amount of memory in case of
                    multiple client IO, after finish, memory does not drop
           Product: GlusterFS
           Version: 7
          Hardware: x86_64
                OS: Linux
            Status: NEW
         Component: io-threads
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: zz.sh.cynthia at gmail.com
                CC: bugs at gluster.org
  Target Milestone: ---
    Classification: Community



Created attachment 1665557
  --> https://bugzilla.redhat.com/attachment.cgi?id=1665557&action=edit
export glusterfsd statudump after stop fio and remove fio files

Description of problem:
doing IO from 10 glusterfs clients at the same time, glusterfsd memory
consumption grows, after io finish the glusterfsd memory does not drop anymore.

Version-Release number of selected component (if applicable):
glusterfs7

How reproducible:


Steps to Reproduce:
1.begin IO with fio on 10 glusterfs clients at the same time
2.observe memory usage of glusterfsd
3.finish IO, and remove IO files

Actual results:
glusterfsd memory keeps to be high
# ps -aux | grep glusterfsd| grep export
root        2643 84.8 20.2 2358828 412908 ?      Ssl  05:32   5:48
/usr/sbin/glusterfsd -s dbm-0.local --volfile-id
export.dbm-0.local.mnt-bricks-export-brick -p
/var/run/gluster/vols/export/dbm-0.local-mnt-bricks-export-brick.pid -S
/var/run/gluster/bab7bc2d0256ba6a.socket --brick-name /mnt/bricks/export/brick
-l /var/log/glusterfs/bricks/mnt-bricks-export-brick.log --xlator-option
*-posix.glusterd-uuid=17da950d-c7a1-4a01-b139-20f8fb801346 --process-name brick
--brick-port 53954 --xlator-option export-server.listen-port=53954
--xlator-option transport.socket.bind-address=dbm-0.local

[root at dbm-0:/root]
# ps -T -p 2643
    PID    SPID TTY          TIME CMD
   2643    2643 ?        00:00:00 glusterfsd
   2643    2644 ?        00:00:00 glfs_timer
   2643    2645 ?        00:00:00 glfs_sigwait
   2643    2646 ?        00:00:00 glfs_memsweep
   2643    2647 ?        00:00:00 glfs_sproc0
   2643    2648 ?        00:00:00 glfs_sproc1
   2643    2649 ?        00:00:00 glusterfsd
   2643    2650 ?        00:00:36 glfs_epoll000
   2643    2651 ?        00:00:37 glfs_epoll001
   2643    3046 ?        00:00:00 glfs_idxwrker
   2643    3047 ?        00:00:14 glfs_iotwr000
   2643    3050 ?        00:00:00 glfs_clogecon
   2643    3051 ?        00:00:00 glfs_clogd000
   2643    3054 ?        00:00:00 glfs_clogd001
   2643    3055 ?        00:00:00 glfs_clogd002
   2643    3060 ?        00:00:00 glfs_posix_rese
   2643    3061 ?        00:00:00 glfs_posixhc
   2643    3062 ?        00:00:00 glfs_posixctxja
   2643    3063 ?        00:00:00 glfs_posixfsy
   2643    3081 ?        00:00:20 glfs_rpcrqhnd
   2643    3229 ?        00:00:20 glfs_rpcrqhnd
   2643    3334 ?        00:00:14 glfs_iotwr001
   2643    3335 ?        00:00:14 glfs_iotwr002
   2643    3992 ?        00:00:14 glfs_iotwr003
   2643    3995 ?        00:00:14 glfs_iotwr004
   2643    4004 ?        00:00:14 glfs_iotwr005
   2643    4005 ?        00:00:14 glfs_iotwr006
   2643    4006 ?        00:00:14 glfs_iotwr007
   2643    4016 ?        00:00:14 glfs_iotwr008
   2643    4017 ?        00:00:14 glfs_iotwr009
   2643    4019 ?        00:00:14 glfs_iotwr00a
   2643    4020 ?        00:00:14 glfs_iotwr00b
   2643    4021 ?        00:00:14 glfs_iotwr00c
   2643    4022 ?        00:00:14 glfs_iotwr00d
   2643    4023 ?        00:00:14 glfs_iotwr00e
   2643    4024 ?        00:00:14 glfs_iotwr00f




Expected results:

after remove fio created files, the glusterfsd memory size will go down to
before.
Additional info:

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.