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https://issues.apache.org/jira/browse/LENS-440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated LENS-440:
-----------------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Committed
> ColumnarSQLRewriter.rewrite should not be synchronized
> ------------------------------------------------------
>
> Key: LENS-440
> URL: https://issues.apache.org/jira/browse/LENS-440
> Project: Apache Lens
> Issue Type: Improvement
> Components: driver-jdbc
> Affects Versions: 2.0
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Priority: Critical
> Fix For: 2.1
>
> Attachments: LENS-440.2.patch
>
>
> Right now, ColumnarSQLRewriter.rewrite is synchronized because rewriter is
> cached in JDBCDriver and it uses all class level variables to keep query
> rewriting state.
> Having this synchronized will make other queries wait for rewrite. We should
> have separate rewriter created for each query or move the state out of
> ColumnarSQLRewriter sothat it need not be synchronized.
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