Bug 1387976

+++ This bug was initially created as a clone of Bug #1385525 +++

Description of problem:
=======================
Getting the below warning messages in glusterd and volume mount logs continuously on SSL SETUP when one of the cluster node glusterd is down/node is down.

Message frequency is very high and if cluster node is down for any known reason for days, it will consume lot of log storage.


[2016-10-17 08:15:55.008898] W [socket.c:590:__socket_rwv] 0-management: readv on 10.70.43.190:24007 failed (No data available)
[2016-10-17 08:15:55.009082] W [socket.c:590:__socket_rwv] 0-management: readv on 10.70.43.190:24007 failed (No data available)
[2016-10-17 08:15:55.009289] W [socket.c:590:__socket_rwv] 0-management: readv on 10.70.43.190:24007 failed (No data available)
[2016-10-17 08:15:55.009546] W [socket.c:590:__socket_rwv] 0-management: readv on 10.70.43.190:24007 failed (No data available)
[2016-10-17 08:15:55.009736] W [socket.c:590:__socket_rwv] 0-management: readv on 10.70.43.190:24007 failed (No data available) 





Version-Release number of selected component (if applicable):
=============================================================
glusterfs-3.8.4-2


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


Steps to Reproduce:
===================
1. Have two node cluster 
2. Create a SSL configuration.
3. Create and start any volume type
4. fuse mount the volume.
5. Stop glusterd on vol file server node/ shutdown the node
6. Check the glusterd logs in the peer nodes and the volume mount log for the above mentioned warning messages  


Actual results:
===============
Continuous warning messages getting when one of the cluster node is down on SSL setup.


Expected results:
=================
There should be control on throwing the warning messages or it should not throw the warning messages.


Additional info:
================
I used backup vol file server while mounting the volume then also issue remains same in the volume mount log.

--- Additional comment from Red Hat Bugzilla Rules Engine on 2016-10-17 05:10:35 EDT ---

This bug is automatically being proposed for the current release of Red Hat Gluster Storage 3 under active development, by setting the release flag 'rhgs‑3.2.0' to '?'. 

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

--- Additional comment from Byreddy on 2016-10-18 01:16:56 EDT ---

This issue is not there in the last GA build.

--- Additional comment from Mohit Agrawal on 2016-10-18 07:26:58 EDT ---

Hi,

  At the time of start glusterd process it returns a port to the other peer node on which it will communicate with glusterd(24007).After stop glusterd on a node means one end point of port is closed and other point is still used by socket(glusterd 24007),glusterd(socket_poller) on other node call's continuously socket_event_poll_in that calls __socket_rwv to read data from socket unless buffer is not clear.
Because other end point of socket is disconnected so it prints the message "0-management: readv on 10.65.7.252:24007 failed (No data available)".

After changed the condition to log the message issue will resolve.


Regards
Mohit Agrawal