Arshad Matin created LENS-522:
---------------------------------
Summary: ConcurrentModificationException while doing parallel
estimate
Key: LENS-522
URL: https://issues.apache.org/jira/browse/LENS-522
Project: Apache Lens
Issue Type: Bug
Reporter: Arshad Matin
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22 Apr 2015 11:14:46,755 [estimate-3] WARN
org.apache.lens.driver.cube.RewriteUtil - Driver :
org.apache.lens.driver.jdbc.JDBCDriver@4ebbd9cc Skipped for the query rewriting
due to
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:810)
at java.util.HashMap$KeyIterator.next(HashMap.java:845)
at
org.apache.lens.cube.metadata.DerivedCube.getDimAttributeNames(DerivedCube.java:247)
at
org.apache.lens.cube.parse.FieldValidator.validateFields(FieldValidator.java:74)
at
org.apache.lens.cube.parse.FieldValidator.rewriteContext(FieldValidator.java:40)
at
org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:198)
at
org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:173)
at
org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:184)
at
org.apache.lens.driver.cube.RewriteUtil$DriverRewriterRunnable.run(RewriteUtil.java:305)
at
org.apache.lens.server.query.QueryExecutionServiceImpl$RewriteEstimateRunnable.run(QueryExecutionServiceImpl.java:1163)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:701)
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