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https://issues.apache.org/jira/browse/LENS-342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14386314#comment-14386314
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Amareshwari Sriramadasu commented on LENS-342:
----------------------------------------------
Review request - https://reviews.apache.org/r/32612/
> NPE in CandidateTableResolver
> -----------------------------
>
> Key: LENS-342
> URL: https://issues.apache.org/jira/browse/LENS-342
> Project: Apache Lens
> Issue Type: Bug
> Components: cube
> Reporter: Rajat Khandelwal
> Assignee: Amareshwari Sriramadasu
> Fix For: 2.1
>
>
> {noformat}
> 23 Feb 2015 15:59:49,094 [QuerySubmitter] WARN
> org.apache.lens.driver.cube.RewriteUtil - Driver :
> org.apache.lens.driver.hive.HiveDriver Skipped for the query rewriting due to
> java.lang.NullPointerException
> at
> org.apache.lens.cube.parse.CandidateTableResolver.checkForSourceReachabilityForDenormCandidates(CandidateTableResolver.java:459)
> at
> org.apache.lens.cube.parse.CandidateTableResolver.rewriteContext(CandidateTableResolver.java:80)
> at
> org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:181)
> at
> org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:165)
> at
> org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:176)
> at
> org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:239)
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl.rewriteAndSelect(QueryExecutionServiceImpl.java:950)
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl.access$800(QueryExecutionServiceImpl.java:71)
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl$QuerySubmitter.run(QueryExecutionServiceImpl.java:460)
> at java.lang.Thread.run(Thread.java:724)
> 23 Feb 2015 15:59:49,094 [QuerySubmitter] ERROR
> org.apache.lens.server.query.QueryExecutionServiceImpl - Error launching
> query 24aa1544-5dba-44ef-9182-28c3f37b06c8
> org.apache.lens.api.LensException: Rewriting failed, cause :No driver
> accepted the query, because null
> at
> org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:269)
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl.rewriteAndSelect(QueryExecutionServiceImpl.java:950)
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl.access$800(QueryExecutionServiceImpl.java:71)
> at
> org.apache.lens.server.query.QueryExecutionServiceImpl$QuerySubmitter.run(QueryExecutionServiceImpl.java:460)
> at java.lang.Thread.run(Thread.java:724)
> Caused by: org.apache.lens.api.LensException: No driver accepted the query,
> because null
> at
> org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:264)
> ... 4 more
> 23 Feb 2015 15:59:49,172 [Grizzly-worker(6)] INFO
> org.apache.lens.server.AuthenticationFilter - Request from user: null,
> path=/queryapi/queries/24aa1544-5dba-44ef-9182-28c3f37b06c
> {noformat}
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