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Bug 1360174 - IO error seen with Rolling or non-disruptive upgrade of an distribute-disperse(EC) volume from 3.7.5 to 3.7.9
Summary: IO error seen with Rolling or non-disruptive upgrade of an distribute-dispers...
Alias: None
Product: GlusterFS
Classification: Community
Component: disperse
Version: 3.8.1
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Ashish Pandey
QA Contact:
Depends On: 1347251 1347686
Blocks: 1360152
TreeView+ depends on / blocked
Reported: 2016-07-26 07:24 UTC by Ashish Pandey
Modified: 2017-02-15 13:57 UTC (History)
5 users (show)

Fixed In Version: glusterfs-3.8.2
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1347686
Last Closed: 2016-08-12 09:47:50 UTC
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:

Attachments (Terms of Use)

Comment 1 Vijay Bellur 2016-07-26 07:36:09 UTC
REVIEW: (cluster/ec: Handle absence of keys in some callback dict) posted (#1) for review on release-3.8 by Ashish Pandey (

Comment 2 Vijay Bellur 2016-07-27 05:51:23 UTC
COMMIT: committed in release-3.8 by Pranith Kumar Karampuri ( 
commit 197bbc9d150554b333504cc9616aaa19b937a8a6
Author: Ashish Pandey <>
Date:   Fri Jun 17 17:52:56 2016 +0530

    cluster/ec: Handle absence of keys in some callback dict
    Problem: This issue arises when we do a rolling update
    from 3.7.5 to 3.7.9.
    For 4+2 volume running 3.7.5, if we update 2 nodes
    and after heal completion  kill 2 older nodes, this
    problem can be seen. After update and killing of
    bricks, 2 nodes will return inodelk count key in dict
    while other 2 nodes will not have inodelk count in dict.
    This is also true for get-link-count.
    During dictionary match , ec_dict_compare, this will
    lead to mismatch of answers and the file operation
    on mount point will fail with IO error.
    Don't match inode, entry and link count keys while
    comparing two dictionaries. However, while combining the
    data in ec_dict_combine, go through all the dictionaries
    and select the maximum values received in different dicts
    for these keys.
    master -
    Change-Id: I33546e3619fe8f909286ee48fb0df2009cd3d22f
    BUG: 1360174
    Signed-off-by: Ashish Pandey <>
    Reviewed-by: Xavier Hernandez <>
    Smoke: Gluster Build System <>
    Reviewed-by: Pranith Kumar Karampuri <>
    CentOS-regression: Gluster Build System <>
    NetBSD-regression: NetBSD Build System <>
    Signed-off-by: Ashish Pandey <>

Comment 3 Niels de Vos 2016-08-12 09:47:50 UTC
This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-3.8.2, please open a new bug report.

glusterfs-3.8.2 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution.


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