Ramana Inukonda Nagaraj created DRILL-545:
---------------------------------------------
Summary: Memory leak when executing queries in serial
Key: DRILL-545
URL: https://issues.apache.org/jira/browse/DRILL-545
Project: Apache Drill
Issue Type: Bug
Reporter: Ramana Inukonda Nagaraj
While debugging another issue wrote a simple jdbc program to keep submitting
queries to drill using JDBC string:
jdbc:drill:schema=dfs;zk=10.10.100.171:5181,10.10.100.172:5181,10.10.100.173:5181
After around 400 successful queries the drillbit starts throwing exceptions and
failing.
Using sqlline to execute a query returns the same error.
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:81)
~[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:338)
[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:366)
[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:176)
[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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