Arshad Matin created LENS-300:
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Summary: NPE while restarting lens-server when some queries are in "QUEUED" state
Key: LENS-300
URL: https://issues.apache.org/jira/browse/LENS-300
Project: Apache Lens
Issue Type: Bug
Reporter: Arshad Matin
Scenario : Some queries are in queued state and restarted the lens server. Got NPE when server tried to rerun it
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09 Feb 2015 18:23:13,986 [QuerySubmitter] INFO hive.ql.parse.ParseDriver - Parsing command: cube select id,name from sample_db_dim where name != 'first'
09 Feb 2015 18:23:13,987 [QuerySubmitter] INFO hive.ql.parse.ParseDriver - Parse Completed
09 Feb 2015 18:23:13,987 [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.hadoop.hive.ql.parse.SemanticAnalyzer.processTable(SemanticAnalyzer.java:658)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.doPhase1(SemanticAnalyzer.java:982)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.doPhase1(SemanticAnalyzer.java:1186)
at org.apache.lens.cube.parse.CubeSemanticAnalyzer.analyzeInternal(CubeSemanticAnalyzer.java:72)
at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:327)
at org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:168)
at org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:181)
at org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:247)
at org.apache.lens.server.query.QueryExecutionServiceImpl.rewriteAndSelect(QueryExecutionServiceImpl.java:970)
at org.apache.lens.server.query.QueryExecutionServiceImpl.access$800(QueryExecutionServiceImpl.java:91)
at org.apache.lens.server.query.QueryExecutionServiceImpl$QuerySubmitter.run(QueryExecutionServiceImpl.java:479)
at java.lang.Thread.run(Thread.java:701)
09 Feb 2015 18:23:13,987 [QuerySubmitter] ERROR org.apache.lens.server.query.QueryExecutionServiceImpl - Error launching query 242ffe1c-c411-4224-94dd-866a745035c7
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:277)
at org.apache.lens.server.query.QueryExecutionServiceImpl.rewriteAndSelect(QueryExecutionServiceImpl.java:970)
at org.apache.lens.server.query.QueryExecutionServiceImpl.access$800(QueryExecutionServiceImpl.java:91)
at org.apache.lens.server.query.QueryExecutionServiceImpl$QuerySubmitter.run(QueryExecutionServiceImpl.java:479)
at java.lang.Thread.run(Thread.java:701)
Caused by: org.apache.lens.api.LensException: No driver accepted the query, because null
at org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:272)
... 4 more
09 Feb 2015 18:23:13,987 [QuerySubmitter] ERROR org.apache.lens.server.query.QueryExecutionServiceImpl - Error in query submitter
java.lang.NullPointerException
at org.apache.lens.server.LensService.getHiveSessionHandle(LensService.java:349)
at org.apache.lens.server.LensService.getSession(LensService.java:245)
at org.apache.lens.server.LensService.release(LensService.java:298)
at org.apache.lens.server.query.QueryExecutionServiceImpl$QuerySubmitter.run(QueryExecutionServiceImpl.java:490)
at java.lang.Thread.run(Thread.java:701)
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