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From "Davide Giannella (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (OAK-3588) SegmentNodeStore allow tweaking of lock fairness
Date Thu, 12 Nov 2015 13:55:12 GMT

     [ https://issues.apache.org/jira/browse/OAK-3588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davide Giannella closed OAK-3588.
---------------------------------

Bulk close for 1.3.10

> SegmentNodeStore allow tweaking of lock fairness
> ------------------------------------------------
>
>                 Key: OAK-3588
>                 URL: https://issues.apache.org/jira/browse/OAK-3588
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segmentmk
>            Reporter: Alex Parvulescu
>            Assignee: Alex Parvulescu
>             Fix For: 1.3.10, 1.2.8, 1.0.24
>
>         Attachments: OAK-3588.patch
>
>
> This will expose the merge semaphores's fairness policy as the semaphore is currently
configured as _NonfairSync_ (default value).
> Opening this option will be beneficial in collecting more stats around thread starvation
and what the best policy is (fair vs non fair).



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