[Bugs] [Bug 1484885] [rpc]: EPOLLERR - disconnecting now messages every 3 secs after completing rebalance

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1484885



--- Comment #1 from Atin Mukherjee <amukherj at redhat.com> ---
Description of problem:
=======================

Post rebalance completion (remove-brick or add-brick) observed following info
messages every 3 secs:

[root at dhcp37-64 ~]# tailf /var/log/glusterfs/glusterd.log
[2017-08-22 08:54:55.763095] I [socket.c:2465:socket_event_handler]
0-transport: EPOLLERR - disconnecting now
[2017-08-22 08:54:58.763920] I [socket.c:2465:socket_event_handler]
0-transport: EPOLLERR - disconnecting now
[2017-08-22 08:55:01.764697] I [socket.c:2465:socket_event_handler]
0-transport: EPOLLERR - disconnecting now
[2017-08-22 08:55:04.765471] I [socket.c:2465:socket_event_handler]
0-transport: EPOLLERR - disconnecting now
[2017-08-22 08:55:07.766176] I [socket.c:2465:socket_event_handler]
0-transport: EPOLLERR - disconnecting now
[2017-08-22 08:55:10.766886] I [socket.c:2465:socket_event_handler]
0-transport: EPOLLERR - disconnecting now

Currently in about a day we have around 23k lines and it keeps increasing.
Eventually this would leave the systems /var partition out of space. 

[root at dhcp37-64 ~]# grep -ri "EPOLLERR - disconnecting now"
/var/log/glusterfs/glusterd.log | wc -l 
23263
[root at dhcp37-64 ~]# 

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


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

Always


Steps to Reproduce:
===================
1. Create 3x2 volume and write data to it
2. Remove brick start to make it 2x2
3. Once rebalance is completed, do commit. 
4. Monitor the glusterd log file

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

EPOLLERR error message comes every 3 secs.

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