[jira] [Created] (DRILL-647) memory leak

["Chun Chang (JIRA)" <ji...@apache.org>]

Chun Chang created DRILL-647:
--------------------------------

             Summary: memory leak
                 Key: DRILL-647
                 URL: https://issues.apache.org/jira/browse/DRILL-647
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Chun Chang
            Priority: Critical


After processing thousands of queries (in the order of, may occur earlier), any new query will fail due to memory allocation failure. 

org.apache.drill.exec.memory.OutOfMemoryException: You attempted to create a new child allocator with initial reservation 20000000 but only 9934592 bytes of memory were available.
	org.apache.drill.exec.memory.TopLevelAllocator.getChildAllocator(TopLevelAllocator.java:68) ~[drill-java-exec-1.0.0-m2-incubating-SNAPSHOT-rebuffed.jar:1.0.0-m2-incubating-SNAPSHOT]
	org.apache.drill.exec.ops.FragmentContext.<init>(FragmentContext.java:86) ~[drill-java-exec-1.0.0-m2-incubating-SNAPSHOT-rebuffed.jar:1.0.0-m2-incubating-SNAPSHOT]
	org.apache.drill.exec.work.foreman.QueryManager.runFragments(QueryManager.java:87) ~[drill-java-exec-1.0.0-m2-incubating-SNAPSHOT-rebuffed.jar:1.0.0-m2-incubating-SNAPSHOT]
	org.apache.drill.exec.work.foreman.Foreman.runPhysicalPlan(Foreman.java:310) [drill-java-exec-1.0.0-m2-incubating-SNAPSHOT-rebuffed.jar:1.0.0-m2-incubating-SNAPSHOT]
	org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:324) [drill-java-exec-1.0.0-m2-incubating-SNAPSHOT-rebuffed.jar:1.0.0-m2-incubating-SNAPSHOT]
	org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:175) [drill-java-exec-1.0.0-m2-incubating-SNAPSHOT-rebuffed.jar:1.0.0-m2-incubating-SNAPSHOT]
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_45]
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_45]
	java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]




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