[jira] Resolved: (JCR-1818) Too many open files when merging large index segments

["Marcel Reutegger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JCR-1818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marcel Reutegger resolved JCR-1818.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0.0

Index segments are now merged with a configurable number of background threads (used to be just 1). The default pool size is set to 2 and can be changed with the following parameter:

<param name="indexMergerPoolSize" value="5"/>

Implemented in revision: 792109

> Too many open files when merging large index segments
> -----------------------------------------------------
>
>                 Key: JCR-1818
>                 URL: https://issues.apache.org/jira/browse/JCR-1818
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Marcel Reutegger
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> When large index segments are merged it may happen that lots of smaller index segments are created but have to wait until the large
> index merge has completed. This may lead to a 'too many open files' exception on some system.
> We should find a solution where large index merges are better decoupled from regular index operations.

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