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From "Mete Atamel (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-440) Concurrency issue when 3 microkernels are writing in the same db
Date Mon, 03 Dec 2012 16:23:59 GMT

    [ https://issues.apache.org/jira/browse/OAK-440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508830#comment-13508830
] 

Mete Atamel commented on OAK-440:
---------------------------------

The latest MongoMK in SVN takes about 3-4 seconds for pyramid structures which is a big improvement
from 70 seconds. Flat structure is still slow, so I'll keep investigating that.
                
> Concurrency issue when 3 microkernels are writing in the same db
> ----------------------------------------------------------------
>
>                 Key: OAK-440
>                 URL: https://issues.apache.org/jira/browse/OAK-440
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: mongomk
>         Environment: linux ubuntu + 1 mongo database instance
>            Reporter: Tudor Rogoz
>            Assignee: Mete Atamel
>
> See test ConcurrentWriteMultipleMkMongoTest.testConcurrency().
> org.apache.jackrabbit.mongomk.impl.command.exception.ConflictingCommitException
> on each Thread when 3 mongo microkernels are writing nodes on the same database.
> Run the test with: 1000 nodes, 10 nodes for the number of children, and 10 nodes per
commit. 

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