[Bugs] [Bug 1339923] New: Misleading error message on rebalance start when one of the glusterd instance is down

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1339923

            Bug ID: 1339923
           Summary: Misleading error message on rebalance start when one
                    of the glusterd instance is down
           Product: GlusterFS
           Version: 3.7.11
         Component: glusterd
          Keywords: EasyFix, Triaged
          Assignee: bugs at gluster.org
          Reporter: hgowtham at redhat.com
                CC: amukherj at redhat.com, bugs at gluster.org
        Depends On: 1337899



+++ This bug was initially created as a clone of Bug #1337899 +++

Description of problem:

While testing http://review.gluster.org/#/c/14347 I figured out that on a multi
node cluster, if rebalance start is triggered with one of the glusterd instance
been down which hosts one of the bricks, the failure message doesn't show the
hostname.

root at 54deb20dc641:/home/glusterfs# gluster v rebalance test-vol start
volume rebalance: test-vol: failed: Host node of brick /tmp/b1 is down

Also the message says that brick is down but glusterd is not.

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


How reproducible:
Always

Steps to Reproduce:
1. Create a multi node cluster
2. Create volume spanning over multiple nodes, start it
3. Trigger rebalance

Actual results:
Error message is misleading

Expected results:
Error message should be correct.

Additional info:

--- Additional comment from Vijay Bellur on 2016-05-23 02:58:36 EDT ---

REVIEW: http://review.gluster.org/14495 (Glusterd: printing the node on error
message of rebalance) posted (#1) for review on master by hari gowtham
(hari.gowtham005 at gmail.com)

--- Additional comment from Vijay Bellur on 2016-05-23 08:07:30 EDT ---

REVIEW: http://review.gluster.org/14495 (Glusterd: printing the node details on
error message of rebalance) posted (#2) for review on master by hari gowtham
(hari.gowtham005 at gmail.com)

--- Additional comment from Vijay Bellur on 2016-05-24 01:55:38 EDT ---

REVIEW: http://review.gluster.org/14495 (Glusterd: printing the node details on
error message of rebalance) posted (#3) for review on master by hari gowtham
(hari.gowtham005 at gmail.com)

--- Additional comment from Vijay Bellur on 2016-05-25 08:11:55 EDT ---

REVIEW: http://review.gluster.org/14495 (Glusterd: printing the node details on
error message of rebalance) posted (#4) for review on master by hari gowtham
(hari.gowtham005 at gmail.com)

--- Additional comment from Vijay Bellur on 2016-05-25 11:12:45 EDT ---

COMMIT: http://review.gluster.org/14495 committed in master by Atin Mukherjee
(amukherj at redhat.com) 
------
commit fb57ac1acb228301edb98f2fe7cf93471363eb4a
Author: hari <hgowtham at redhat.com>
Date:   Mon May 23 12:07:21 2016 +0530

    Glusterd: printing the node details on error message of rebalance

    Problem: on the rebalance start with one of the glusterd being
    down among the volume, the error message says only about the
    brick path.

    Fix: adding the node details

    Change-Id: I5827d3a9a15b0461c9ce3a51c0b16246ca58f335
    BUG: 1337899
    Signed-off-by: hari <hgowtham at redhat.com>
    Reviewed-on: http://review.gluster.org/14495
    Tested-by: hari gowtham <hari.gowtham005 at gmail.com>
    Smoke: Gluster Build System <jenkins at build.gluster.com>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Atin Mukherjee <amukherj at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1337899
[Bug 1337899] Misleading error message on rebalance start when one of the
glusterd instance is down
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