[Bugs] [Bug 1236093] [geo-rep]: worker died with "ESTALE" when performed rm -rf on a directory from mount of master volume

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1236093

Kotresh HR <khiremat at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|bugs at gluster.org            |khiremat at redhat.com



--- Comment #1 from Kotresh HR <khiremat at redhat.com> ---
Description of problem:
=======================

Whenever perfomred rm -rf on the master volume, the worker died with the
backtrace as:


[2015-05-19 15:33:13.868683] E
[syncdutils(/rhs/brick2/b2):276:log_raise_exception] <top>: FAIL: 
Traceback (most recent call last):
  File "/usr/libexec/glusterfs/python/syncdaemon/gsyncd.py", line 165, in main
    main_i()
  File "/usr/libexec/glusterfs/python/syncdaemon/gsyncd.py", line 659, in
main_i
    local.service_loop(*[r for r in [remote] if r])
  File "/usr/libexec/glusterfs/python/syncdaemon/resource.py", line 1440, in
service_loop
    g3.crawlwrap(oneshot=True)
  File "/usr/libexec/glusterfs/python/syncdaemon/master.py", line 580, in
crawlwrap
    self.crawl()
  File "/usr/libexec/glusterfs/python/syncdaemon/master.py", line 1150, in
crawl
    self.changelogs_batch_process(changes)
  File "/usr/libexec/glusterfs/python/syncdaemon/master.py", line 1059, in
changelogs_batch_process
    self.process(batch)
  File "/usr/libexec/glusterfs/python/syncdaemon/master.py", line 946, in
process
    self.process_change(change, done, retry)
  File "/usr/libexec/glusterfs/python/syncdaemon/master.py", line 902, in
process_change
    failures = self.slave.server.entry_ops(entries)
  File "/usr/libexec/glusterfs/python/syncdaemon/repce.py", line 226, in
__call__
    return self.ins(self.meth, *a)
  File "/usr/libexec/glusterfs/python/syncdaemon/repce.py", line 208, in
__call__
    raise res
OSError: [Errno 116] Stale file handle
[2015-05-19 15:33:13.870326] I [syncdutils(/rhs/brick2/b2):220:finalize] <top>:
exiting.
[2015-05-19 15:33:13.874784] I [repce(agent):92:service_loop] RepceServer:
terminating on reaching EOF.

And with everytime monitor tries to spawn the process, it dies in startup
phase.


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



How reproducible:
================

Tried couple of times and was successful in reproducing it in as many times


Steps Carried:
==============
1. Created master cluster 
2. Created and started master volume
3. Created shared volume (gluster_shared_storage)
4. Mounted the shared volume on /var/run/gluster/shared_storage
5. Created Slave cluster
6. Created and Started slave volume
7. Created geo-rep session between master and slave
8. Configured use_meta_volume true
9. Started geo-rep
10. Mounted master volume over Fuse and NFS to client
11. Copied files /etc{1..10} from fuse mount
12. Copied files /etc{11.20} from NFS mount
13. Sync completed successfully
14. Removed the files etc.2 from fuse and etc.12 from NFS
15. Looked into the geo-rep session it was faulty 
16. Looked into the logs, it showed continuous traceback

Actual results:
===============

It crashed and comes back with crawl type as history


Expected results:
=================

Worker should not crash and it should handle ESTALE gracefully

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