Details
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Bug
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Status: Resolved
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Major
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Resolution: Duplicate
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0.7.1
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None
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- Java 1.6.0_21, Java HotSpot(TM) 64-Bit Server VM
- Ubuntu 10.04
Description
Hive's threads are stopped at HashMap.getEntry(..) that is used within QueryPlan#extractCounters() and QueryPlan#updateCountersInQueryPlan(). It seems that a race condition problem of a HashSet object is caused when extractCounters() and updateCountersInQueryPlan() are concurrently executed. I hit the problem with Hive 0.7.1 but, I think that it also is caused with 0.8.1.
The problem is reported by several persons on mailing list.
http://mail-archives.apache.org/mod_mbox/hive-dev/201201.mbox/%3CCAKTRiE+3x31FDy+3F0c+jZSXQrhxBgT4DOyfZddm7sdX+cu=Zg@mail.gmail.com%3E
The following is a part of my thread dump.
"Thread-1091" prio=10 tid=0x00007fd17112b000 nid=0x1100 runnable [0x00007fd175f60000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.getEntry(HashMap.java:347)
at java.util.HashMap.containsKey(HashMap.java:335)
at java.util.HashSet.contains(HashSet.java:184)
at org.apache.hadoop.hive.ql.QueryPlan.extractCounters(QueryPlan.java:342)
at org.apache.hadoop.hive.ql.QueryPlan.getQueryPlan(QueryPlan.java:419)
at org.apache.hadoop.hive.ql.QueryPlan.toString(QueryPlan.java:592)
at org.apache.hadoop.hive.ql.history.HiveHistory.logPlanProgress(HiveHistory.java:493)
at org.apache.hadoop.hive.ql.exec.ExecDriver.progress(ExecDriver.java:395)
at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:686)
at org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:123)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:130)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:57)
at org.apache.hadoop.hive.ql.exec.TaskRunner.run(TaskRunner.java:47)"Thread-1090" prio=10 tid=0x00007fd17012f000 nid=0x10ff runnable [0x00007fd175152000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.getEntry(HashMap.java:347)
at java.util.HashMap.containsKey(HashMap.java:335)
at java.util.HashSet.contains(HashSet.java:184)
at org.apache.hadoop.hive.ql.QueryPlan.updateCountersInQueryPlan(QueryPlan.java:297)
at org.apache.hadoop.hive.ql.QueryPlan.getQueryPlan(QueryPlan.java:420)
at org.apache.hadoop.hive.ql.QueryPlan.toString(QueryPlan.java:592)
at org.apache.hadoop.hive.ql.history.HiveHistory.logPlanProgress(HiveHistory.java:493)
at org.apache.hadoop.hive.ql.exec.ExecDriver.progress(ExecDriver.java:395)
at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:686)
at org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:123)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:130)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:57)
at org.apache.hadoop.hive.ql.exec.TaskRunner.run(TaskRunner.java:47)
Attachments
Attachments
Issue Links
- duplicates
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HIVE-4000 Hive client goes into infinite loop at 100% cpu
- Closed