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https://issues.apache.org/jira/browse/HIVE-6682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941955#comment-13941955
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Sergey Shelukhin commented on HIVE-6682:
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hmm, is HiveQA broken?
> nonstaged mapjoin table memory check may be broken
> --------------------------------------------------
>
> Key: HIVE-6682
> URL: https://issues.apache.org/jira/browse/HIVE-6682
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.13.0
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-6682.01.patch, HIVE-6682.02.patch, HIVE-6682.patch
>
>
> We are getting the below error from task while the staged load works
> correctly.
> We don't set the memory threshold so low so it seems the settings are just
> not handled correctly. This seems to always trigger on the first check. Given
> that map task might have bunch more stuff, not just the hashmap, we may also
> need to adjust the memory check (e.g. have separate configs).
> {noformat}
> Error: java.lang.RuntimeException:
> org.apache.hadoop.hive.ql.metadata.HiveException:
> org.apache.hadoop.hive.ql.exec.mapjoin.MapJoinMemoryExhaustionException:
> 2014-03-14 08:11:21 Processing rows: 200000 Hashtable size:
> 199999 Memory usage: 204001888 percentage: 0.197
> at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:195)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:430)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException:
> org.apache.hadoop.hive.ql.exec.mapjoin.MapJoinMemoryExhaustionException:
> 2014-03-14 08:11:21 Processing rows: 200000 Hashtable size:
> 199999 Memory usage: 204001888 percentage: 0.197
> at
> org.apache.hadoop.hive.ql.exec.mr.HashTableLoader.load(HashTableLoader.java:104)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTable(MapJoinOperator.java:150)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.cleanUpInputFileChangedOp(MapJoinOperator.java:165)
> at
> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1026)
> at
> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1030)
> at
> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1030)
> at
> org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:489)
> at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:177)
> ... 8 more
> Caused by:
> org.apache.hadoop.hive.ql.exec.mapjoin.MapJoinMemoryExhaustionException:
> 2014-03-14 08:11:21 Processing rows: 200000 Hashtable size:
> 199999 Memory usage: 204001888 percentage: 0.197
> at
> org.apache.hadoop.hive.ql.exec.mapjoin.MapJoinMemoryExhaustionHandler.checkMemoryStatus(MapJoinMemoryExhaustionHandler.java:91)
> at
> org.apache.hadoop.hive.ql.exec.HashTableSinkOperator.processOp(HashTableSinkOperator.java:248)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:791)
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:92)
> at
> org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.startForward(MapredLocalTask.java:375)
> at
> org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.startForward(MapredLocalTask.java:346)
> at
> org.apache.hadoop.hive.ql.exec.mr.HashTableLoader.loadDirectly(HashTableLoader.java:147)
> at
> org.apache.hadoop.hive.ql.exec.mr.HashTableLoader.load(HashTableLoader.java:82)
> ... 15 more
> {noformat}
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