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https://issues.apache.org/jira/browse/LENS-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16036867#comment-16036867
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Puneet Gupta commented on LENS-1429:
------------------------------------
+1
> Queries failing intermittently with NO_REF_COL_AVAILABLE
> --------------------------------------------------------
>
> Key: LENS-1429
> URL: https://issues.apache.org/jira/browse/LENS-1429
> Project: Apache Lens
> Issue Type: Bug
> Components: cube
> Reporter: Sushil Mohanty
> Assignee: Sushil Mohanty
> Attachments: LENS-1429.patch
>
>
> Have seen queries failing intermittently with below error.
> {CODE}
> 16 May 2017 11:59:39 [5af8e7ad-b9d7-44db-abdf-d8a28bdb9f3c]
> [f38a238e-abcb-4168-a052-7114cee1c3a6 estimate-128] WARN
> org.apache.lens.server.rewrite.RewriteUtil - Driver : hive/prod Skipped for
> the query rewriting due to
> org.apache.lens.server.api.error.LensException:
> NO_REF_COL_AVAILABLE[my_ref_col]
> at
> org.apache.lens.cube.parse.DenormalizationResolver$DenormalizationContext.pickColumnsForTable(DenormalizationResolver.java:227)
> ~[lens-cube-2.7.0-SNAPSHOT.jar:2.7.0-SNAPSHOT]
> at
> org.apache.lens.cube.parse.DenormalizationResolver$DenormalizationContext.rewriteDenormctx(DenormalizationResolver.java:150)
> ~[lens-cube-2.7.0-SNAPSHOT.jar:2.7.0-SNAPSHOT]
> at
> org.apache.lens.cube.parse.DimHQLContext.addDenormDims(DimHQLContext.java:119)
> ~[lens-cube-2.7.0-SNAPSHOT.jar:2.7.0-SNAPSHOT]
> at
> org.apache.lens.cube.parse.MultiCandidateQueryWriterContext.addDenormDims(MultiCandidateQueryWriterContext.java:56)
> ~[lens-cube-2.7.0-SNAPSHOT.jar:2.7.0-SNAPSHOT]
> at
> org.apache.lens.cube.parse.CubeQueryContext.getQueryWriter(CubeQueryContext.java:927)
> ~[lens-cube-2.7.0-SNAPSHOT.jar:2.7.0-SNAPSHOT]
> at
> org.apache.lens.cube.parse.CubeQueryContext.toHQL(CubeQueryContext.java:947)
> ~[lens-cube-2.7.0-SNAPSHOT.jar:2.7.0-SNAPSHOT]
> at
> org.apache.lens.server.rewrite.RewriteUtil$DriverRewriterRunnable.run(RewriteUtil.java:396)
> ~[classes/:na]
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl$RewriteEstimateRunnable.run(QueryExecutionServiceImpl.java:1855)
> [classes/:na]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_40]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_40]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_40]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_40]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
> {CODE}
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