Description of problem:


In a consistent scenario, when rm -rf is performed on Master volume (Fuse/NFS). The slave logs the below errors and fails to remove from the slave volume. Geo-Rep continue to retry removal and after a while the files/directories do get remove. 

[2015-06-24 17:10:10.844609] W [resource(slave):692:entry_ops] <top>: Recursive remove 270bb38f-fd2e-4cad-af38-200beb35fd68 => .gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profilesfailed: Directory not empty
[2015-06-24 17:10:10.857244] W [syncdutils(slave):486:errno_wrap] <top>: reached maximum retries (['270bb38f-fd2e-4cad-af38-200beb35fd68', '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profiles', '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profiles'])...[Errno 39] Directory not empty: '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profiles'
[2015-06-24 17:10:10.857528] W [resource(slave):692:entry_ops] <top>: Recursive remove 270bb38f-fd2e-4cad-af38-200beb35fd68 => .gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profilesfailed: Directory not empty
[2015-06-24 17:10:13.361917] W [syncdutils(slave):486:errno_wrap] <top>: reached maximum retries (['270bb38f-fd2e-4cad-af38-200beb35fd68', '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profiles', '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profiles'])...[Errno 39] Directory not empty: '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profiles'
[2015-06-24 17:10:13.362207] W [resource(slave):692:entry_ops] <top>: Recursive remove 270bb38f-fd2e-4cad-af38-200beb35fd68 => .gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/tune-profilesfailed: Directory not empty
[2015-06-24 17:10:18.390331] E [repce(slave):117:worker] <top>: call failed: 
Traceback (most recent call last):
  File "/usr/libexec/glusterfs/python/syncdaemon/repce.py", line 113, in worker
    res = getattr(self.obj, rmeth)(*in_data[2:])
  File "/usr/libexec/glusterfs/python/syncdaemon/resource.py", line 685, in entry_ops
    [], [ENOTEMPTY, ESTALE, ENODATA])
  File "/usr/libexec/glusterfs/python/syncdaemon/syncdutils.py", line 475, in errno_wrap
    return call(*arg)
  File "/usr/libexec/glusterfs/python/syncdaemon/resource.py", line 667, in recursive_rmdir
    errno_wrap(os.rmdir, [path], [ENOENT, ESTALE])
  File "/usr/libexec/glusterfs/python/syncdaemon/syncdutils.py", line 475, in errno_wrap
    return call(*arg)
OSError: [Errno 107] Transport endpoint is not connected: '.gfid/e32ea6ee-9f46-46f2-8816-51648960fc0f/alternatives'
[2015-06-24 17:10:18.398015] I [repce(slave):92:service_loop] RepceServer: terminating on reaching EOF.
[2015-06-24 17:10:18.398405] I [syncdutils(slave):220:finalize] <top>: exiting.



Other Errors logged are:
=========================
grep "OSError" /var/log/glusterfs/geo-replication-slaves/9c0db153-6b18-4b92-bcbd-8448fba042ce\:gluster%3A%2F%2F127.0.0.1%3Aslave.log


OSError: [Errno 107] Transport endpoint is not connected: '.gfid/00546903-6a61-4ede-a703-7a00a5f3b22f/X11/fontpath.d'
OSError: [Errno 107] Transport endpoint is not connected: '.gfid/72fc70a8-ecad-4f2e-80a6-605ab1d5681e/redhat-lsb'
    raise OSError(errn, os.strerror(errn))
OSError: [Errno 117] Structure needs cleaning
OSError: [Errno 107] Transport endpoint is not connected: '.gfid/547f2de5-7971-4323-837e-6ecf308a36c9/cluster/cman-notify.d'
    raise OSError(errn, os.strerror(errn))
OSError: [Errno 117] Structure needs cleaning
OSError: [Errno 117] Structure needs cleaning: '.gfid/53c7d4b5-a4cb-4b77-bac8-d9476b77dec1/rhsm/pluginconf.d'


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

glusterfs-3.7.1-5.el6rhs.x86_64


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

Always


Steps to Reproduce:
===================
1. Create Master Cluster with 4 nodes
2. Create Slave Cluster with 2 nodes
3. Create and Start Master volume (4x2)
4. Create and Start Slave volume (2x2)
5. Create and Start Meta Volume (1x3)
6. Create password-less ssh between node1 of master to node1 of slave
7. Create geo-rep session between master and slave
8. Config the session to use_meta_volume  true
9. Start the geo-rep session
10. Mount the master and slave volume on client (Fuse & NFS)
11. From the fuse mount of master volume create data. I used:

for i in {1..10}; do cp -rf /etc etc.$i ; done
for i in {1..100}; do dd if=/dev/zero of=$i bs=10M count=1 ; done
for i in {1..10}; do cp -rf /etc r$i ; done

12. From NFS mount of master volume create data. I used:

for i in {11..20}; do cp -rf /etc arm.$i ; done
for i in {1..200}; do dd if=/dev/zero of=nfs.$i bs=1M count=1 ; done

13. Wait for files to sync to slave. Mount the slave volume and check arequal/ ls -lRT | wc etc.

14. Once the files are synced successfully. Do "rm -rf arm.*" from fuse mount and "rm -rf r*"

In a while you should start seeing lot of errors on Master log file and Slave log file.

Master File Location:
=====================

/var/log/glusterfs/geo-replication/master/

Slave File Location:
====================

/var/log/glusterfs/geo-replication-slaves/