[Bugs] [Bug 1699714] New: Brick is not able to detach successfully in brick_mux environment

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1699714

            Bug ID: 1699714
           Summary: Brick is not able to detach successfully in brick_mux
                    environment
           Product: GlusterFS
           Version: 6
          Hardware: x86_64
                OS: Linux
            Status: NEW
         Component: core
          Severity: urgent
          Priority: urgent
          Assignee: bugs at gluster.org
          Reporter: moagrawa at redhat.com
                CC: bugs at gluster.org, rhinduja at redhat.com,
                    rhs-bugs at redhat.com, sankarshan at redhat.com,
                    storage-qa-internal at redhat.com
        Depends On: 1698919
            Blocks: 1699023, 1699025
  Target Milestone: ---
    Classification: Community



+++ This bug was initially created as a clone of Bug #1698919 +++

Description of problem:
Brick is not detached successfully while brick_mux is enabled.

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


How reproducible:
Always

Steps to Reproduce:
1. Setup 3 node cluster environment
2. Enable brick_mux
3. Run below loop to setup 50 volumes
   for i in {1..50}; do gluster v create testvol$i replica 3
<node1>:/home/testvol/b$i <node2>:/home/testvol/b$i <node3>:/home/testvol/b$i
force; gluster v start testvol$i;done
4. Run below loop to stop volume
   for i in {2..50}; do gluster v stop testvol$i --mode=script; sleep 1; ;done
5. After run above loop check brick in running process
   ls -lrth /proc/`pgrep glusterfsd`/fd | grep b | grep -v .glusterfs
   the command is showing multiple bricks are still part of the running
process.
Actual results:
   Bricks are not detached successfully.

Expected results:
   Bricks should be detached successfully.

Additional info:

--- Additional comment from RHEL Product and Program Management on 2019-04-11
12:42:35 UTC ---

This bug is automatically being proposed for the next minor release of Red Hat
Gluster Storage by setting the release flag 'rhgs‑3.5.0' to '?'. 

If this bug should be proposed for a different release, please manually change
the proposed release flag.


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1698919
[Bug 1698919] Brick is not able to detach successfully in brick_mux environment
https://bugzilla.redhat.com/show_bug.cgi?id=1699023
[Bug 1699023] Brick is not able to detach successfully in brick_mux environment
https://bugzilla.redhat.com/show_bug.cgi?id=1699025
[Bug 1699025] Brick is not able to detach successfully in brick_mux environment
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