[Bugs] [Bug 1404693] New: `rm` of file on mirrored glusterfs fs sometimes blocks indefinitely

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1404693

            Bug ID: 1404693
           Summary: `rm` of file on mirrored glusterfs fs sometimes blocks
                    indefinitely
           Product: GlusterFS
           Version: 3.6.0
         Component: glusterd
          Severity: medium
          Assignee: bugs at gluster.org
          Reporter: david.vanleeuwen at gmail.com
                CC: bugs at gluster.org



Description of problem:

`rm` of a file on a mirrored glusterfs filesystem blocks sometimes (~ 1 in 1000
times).  The file still continues to exist in both copies of the filesystem.  A
manual `rm` of the same file removes the file, but the original `rm` continues
to block. 


Version-Release number of selected component (if applicable):
3.5.2-2+deb8u2 (debian jessie stock release)


How reproducible:
Mmm.  Complex Kaldi training script.  The file is probably used as a semaphore
between parallel jobs, but is only removed until the jobs have finished. 


Steps to Reproduce:
1. install two nodes with large filesystems on /mnt/gluster/data
2. configure as mirror: `gluster volume create data replica 2 transport tcp
host-1:/mnt/gluster/data/brick host-2:/mnt/gluster/data/brick`
3. mount as /data, use this as shared filesystem. 

Actual results:
Every so often (1 in 1000 times or less) `rm file-on-glusterfs-fs` blocks,
nothing happens, seemingly indefinitely.  I have to kill the `rm` process for
the  calling script to continue. 

Expected results:
`rm file-on-glusterfs-fs` always returns within a few seconds



Additional info:

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