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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2107) Move page latching out of the lock manager
Date Fri, 02 Feb 2007 14:02:05 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-2107:
--------------------------------------

    Attachment: derby-2107-1d.diff

New revision of the patch (1d) with the following changes:
  - updated comments as suggested
  - doesn't delete slotTableToString()
  - factored out some common code from setExclusive()/setExclusiveNoWait() into a new method
called preLatch()

> Move page latching out of the lock manager
> ------------------------------------------
>
>                 Key: DERBY-2107
>                 URL: https://issues.apache.org/jira/browse/DERBY-2107
>             Project: Derby
>          Issue Type: Improvement
>          Components: Performance, Services, Store
>    Affects Versions: 10.3.0.0
>            Reporter: Knut Anders Hatlen
>         Assigned To: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: derby-2107-1a.diff, derby-2107-1a.stat, derby-2107-1b.diff, derby-2107-1c.diff,
derby-2107-1c.stat, derby-2107-1d.diff
>
>
> Latching of pages could be done more efficiently locally in store than in the lock manager.
See the discussion here: http://thread.gmane.org/gmane.comp.apache.db.derby.devel/33135

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