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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-9847) Deadlock on ManagedIndexSchema lock.
Date Tue, 20 Dec 2016 16:18:58 GMT

    [ https://issues.apache.org/jira/browse/SOLR-9847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15764557#comment-15764557
] 

Mark Miller commented on SOLR-9847:
-----------------------------------

bq. Patch that narrows the period during which the schema update lock is held

That was my first inclination, but I don't know how all this works that well yet, so I tried
to hack something sim with the wait.

bq. does it look good to commit?

+1. I'll report if I run into anything further.

> Deadlock on ManagedIndexSchema lock.
> ------------------------------------
>
>                 Key: SOLR-9847
>                 URL: https://issues.apache.org/jira/browse/SOLR-9847
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Mark Miller
>         Attachments: SOLR-9847-release-lock-before-replica-version-agreement.patch, SOLR-9847.patch
>
>
> Seems we hold the lock while in ManagedIndexSchema.waitForSchemaZkVersionAgreement, so
we may never see agreement because are updates may also be waiting on that lock.



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