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Posted to issues@hbase.apache.org by "Laxman (JIRA)" <ji...@apache.org> on 2012/06/07 23:42:23 UTC
[jira] [Assigned] (HBASE-6186) Assure thread safety
[ https://issues.apache.org/jira/browse/HBASE-6186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Laxman reassigned HBASE-6186:
-----------------------------
Assignee: Laxman
> Assure thread safety
> --------------------
>
> Key: HBASE-6186
> URL: https://issues.apache.org/jira/browse/HBASE-6186
> Project: HBase
> Issue Type: Sub-task
> Reporter: Andrew Purtell
> Assignee: Laxman
>
> Check data structures for necessary thread safety.
> One known issue is as follows:
> In TableAuthManager, we need to deal with concurrent grants and revokes now that ADMIN permission can be delegated to perhaps multiple users.
> Consider using a ReadWriteLock to protect for update. The current data structure is an array multimap. It is also possible to obtain a synchronized multimap from Guava with Multimaps#synchronizedListMultimap but by far the most common access is read access, and concurrent read access is fine.
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