[jira] [Commented] (SOLR-4013) Creating a core should prevent more than one thread from creating a core of the same name at once.

["Erick Erickson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-4013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13561578#comment-13561578 ] 

Erick Erickson commented on SOLR-4013:
--------------------------------------

I think I've already done this in SOLR-4196 which hasn't been committed yet, I need to verify.
                
> Creating a core should prevent more than one thread from creating a core of the same name at once.
> --------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-4013
>                 URL: https://issues.apache.org/jira/browse/SOLR-4013
>             Project: Solr
>          Issue Type: Improvement
>    Affects Versions: 4.1, 5.0
>            Reporter: Erick Erickson
>            Assignee: Erick Erickson
>            Priority: Minor
>             Fix For: 4.2, 5.0
>
>
> This hasn't been an issue so far since cores are created at startup. But in the lots of cores case (see SOLR-1293) the probability that more than one thread will attempt to create a core of the same name is vastly greater. We need to block other threads from creating a core if the core is already being created in a different thread.
> Once the core is created, the blocked thread should pick up the newly-created core rather than create it again.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org