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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-12533) Collection creation fails if metrics are called during core creation
Date Wed, 04 Jul 2018 02:59:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-12533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16532183#comment-16532183
] 

ASF subversion and git services commented on SOLR-12533:
--------------------------------------------------------

Commit 2e22a12f0e28add0335ea3c56c5236175a76604c in lucene-solr's branch refs/heads/branch_7x
from [~yonik@apache.org]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=2e22a12 ]

SOLR-12533: getting index size shouldn't create directory (metrics race)


> Collection creation fails if metrics are called during core creation
> --------------------------------------------------------------------
>
>                 Key: SOLR-12533
>                 URL: https://issues.apache.org/jira/browse/SOLR-12533
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: SolrCloud
>    Affects Versions: 7.0
>            Reporter: Peter Cseh
>            Priority: Major
>             Fix For: 7.5
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> There is a race condition in SorlCore's constructor:
> - the metrics.indexSize call implicitly creates a data/index folder for that core
> - if the data/index folder exists, no segments file will be created
> - the searcher won't start up if there are no segments file in the data/index folder
> This is probably the root cause for SOLR-2130 and SOLR-2801 as well.



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