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From "Christoph Kiehl (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1238) Change default value for maxMergeDocs
Date Tue, 27 Nov 2007 19:19:43 GMT

    [ https://issues.apache.org/jira/browse/JCR-1238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12545975
] 

Christoph Kiehl commented on JCR-1238:
--------------------------------------

Sounds good! +1

> Change default value for maxMergeDocs
> -------------------------------------
>
>                 Key: JCR-1238
>                 URL: https://issues.apache.org/jira/browse/JCR-1238
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Marcel Reutegger
>            Priority: Minor
>
> This is actually a left over from the time before JCR-197 was implemented. Back then
index merges were performed with the client thread and would hold up execution for a long
time if a large number of nodes were merged. The default value for maxMergeDocs limited this
to 100'000 nodes, resulting in a couple of seconds for the merge operation.
> This default value does not make sense anymore because index merges are performed in
a background thread and may take a long time without an effect on regular workspace operations.
If a workspace grows large it may cause performance degradation because the number of index
segments increases linearly when there are more than 100'000 nodes.
> I propose to set the new default to Integer.MAX_VALUE

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