[hibernate-issues] [Hibernate-JIRA] Assigned: (HSEARCH-222) Entities not found during concurrent update

[Sanne Grinovero (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sanne Grinovero reassigned HSEARCH-222:
---------------------------------------

    Assignee:     (was: Sanne Grinovero)

fine, but I unassign it from myself as I have overestimated my free time :-(
I'm still willing to to it, just I can't guarantee a patch soon.

> Entities not found during concurrent update
> -------------------------------------------
>
>                 Key: HSEARCH-222
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-222
>             Project: Hibernate Search
>          Issue Type: Bug
>          Components: directory provider, engine
>            Reporter: Sanne Grinovero
>
> As we update an entity by deleting it from index by using a database, and afterwards we reinsert it
> using an IndexWriter, there is a point in time in the middle were no DPlock is held on the Directory,
> At this moment a ReaderProvider could (re)open the index and
> all searches performed on this IndexReader will not find the entity at all.
> We should use a Read/Write Lock on DP instead of the current ReentrantLock to use a write
> lock during index updates and avoid creating a bottleneck for different threads needing a searcher.

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