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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-9455) Deleting a sub-shard in recovery state can mark parent shard as inactive
Date Mon, 12 Sep 2016 09:34:22 GMT

    [ https://issues.apache.org/jira/browse/SOLR-9455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15483627#comment-15483627
] 

ASF subversion and git services commented on SOLR-9455:
-------------------------------------------------------

Commit 2e2ef4738cdfbb96a9502920c4ae2ea388be509b in lucene-solr's branch refs/heads/branch_6_2
from [~shalinmangar]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=2e2ef47 ]

SOLR-9455: Deleting a sub-shard in recovery state can mark parent shard as inactive
(cherry picked from commit 2700b95)

(cherry picked from commit 937439a)


> Deleting a sub-shard in recovery state can mark parent shard as inactive
> ------------------------------------------------------------------------
>
>                 Key: SOLR-9455
>                 URL: https://issues.apache.org/jira/browse/SOLR-9455
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: SolrCloud
>    Affects Versions: 4.10.4, 5.5.2, 6.2
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Shalin Shekhar Mangar
>             Fix For: 6.2.1, 6.3, master (7.0)
>
>         Attachments: SOLR-9455.patch
>
>
> When deleting a sub-shard after a failed split operation, the delete shard API unloads
the replica cores and then deletes the shard state. But, say there were 2 replicas, if the
following sequence occurs:
> # 1st replica got deleted
> # for any reason, the other replica published "state=active"
> Then the overseer can switch slice states and put parent shard as inactive and the sub-shards
as active. 
> We should defensively update sub-shard state back to "construction" and only then invoke
the unload action on replica cores.



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