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https://issues.apache.org/jira/browse/DERBY-2150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12463895
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Knut Anders Hatlen commented on DERBY-2150:
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Attached another patch (2a) which removes the rest of the synchronized
containers (two Hashtables) in GenericLCC. Also touched a couple of other files
because the signature of copyHashtableToAIHT() was changed. Please review!
> Reduce use of synchronized collections in GenericLanguageConnectionContext
> --------------------------------------------------------------------------
>
> Key: DERBY-2150
> URL: https://issues.apache.org/jira/browse/DERBY-2150
> Project: Derby
> Issue Type: Improvement
> Components: Performance, SQL
> Affects Versions: 10.3.0.0
> Reporter: Knut Anders Hatlen
> Assigned To: Knut Anders Hatlen
> Priority: Minor
> Attachments: derby-2150-1a.diff, derby-2150-1b.diff,
> derby-2150-2a.diff, derby-2150-2a.stat
>
>
> In org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext, it is
> probably safe to replace some of the synchronized collections with
> unsynchronized ones. This should be investigated, and the unnecessary
> synchronization should be removed. See discussion here:
> http://www.nabble.com/Use-of-synchronized-containers-in-engine-code-tf2754469.html
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