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https://issues.apache.org/jira/browse/HIVE-12547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15053469#comment-15053469
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Sergey Shelukhin commented on HIVE-12547:
-----------------------------------------
[~mmccline] what do you think? I looked at the code, it looks like it should be
possible to compress value reference and hashcode into one (or key+hash+value
into two?)
Is there a point of storing the small value length in value ref? We never
compare values, just retrieve them, so there are no cases where we avoid going
to WriteBuffer-s, like there is with keys.
> VectorMapJoinFastBytesHashTable fails during expansion
> ------------------------------------------------------
>
> Key: HIVE-12547
> URL: https://issues.apache.org/jira/browse/HIVE-12547
> Project: Hive
> Issue Type: Bug
> Reporter: Siddharth Seth
> Assignee: Sergey Shelukhin
> Priority: Critical
> Attachments: HIVE-12547.WIP.patch
>
>
> {code}
> 2015-11-30 20:55:30,361 [INFO] [Dispatcher thread {Central}]
> |history.HistoryEventHandler|:
> [HISTORY][DAG:dag_1448429572030_1224_7][Event:TASK_ATTEMPT_FINISHED]:
> vertexName=Map 2, taskAttemptId=attempt_1448429572030_1224_7_03_000005_0,
> creationTime=1448934722881, allocationTime=1448934726552,
> startTime=1448934726553, finishTime=1448934930360, timeTaken=203807,
> status=FAILED, errorEnum=FRAMEWORK_ERROR, diagnostics=Error: Failure while
> running task:
> attempt_1448429572030_1224_7_03_000005_0:java.lang.RuntimeException:
> java.lang.RuntimeException: Map operator initialization failed
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:195)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:160)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:348)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:71)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:60)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:60)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:35)
> at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.RuntimeException: Map operator initialization failed
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.init(MapRecordProcessor.java:289)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:171)
> ... 14 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Async
> initialization failed
> at
> org.apache.hadoop.hive.ql.exec.Operator.completeInitialization(Operator.java:424)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:394)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:519)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:472)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:380)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.init(MapRecordProcessor.java:274)
> ... 15 more
> Caused by: java.util.concurrent.ExecutionException:
> org.apache.hadoop.hive.ql.metadata.HiveException:
> org.apache.hadoop.hive.ql.metadata.HiveException:
> java.lang.NegativeArraySizeException
> at java.util.concurrent.FutureTask.report(FutureTask.java:122)
> at java.util.concurrent.FutureTask.get(FutureTask.java:192)
> at
> org.apache.hadoop.hive.ql.exec.Operator.completeInitialization(Operator.java:414)
> ... 20 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException:
> org.apache.hadoop.hive.ql.metadata.HiveException:
> java.lang.NegativeArraySizeException
> at
> org.apache.hadoop.hive.ql.exec.tez.LlapObjectCache.retrieve(LlapObjectCache.java:106)
> at
> org.apache.hadoop.hive.ql.exec.tez.LlapObjectCache$1.call(LlapObjectCache.java:131)
> ... 4 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException:
> java.lang.NegativeArraySizeException
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastHashTableLoader.load(VectorMapJoinFastHashTableLoader.java:110)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTable(MapJoinOperator.java:293)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator$1.call(MapJoinOperator.java:174)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator$1.call(MapJoinOperator.java:170)
> at
> org.apache.hadoop.hive.ql.exec.tez.LlapObjectCache.retrieve(LlapObjectCache.java:104)
> ... 5 more
> Caused by: java.lang.NegativeArraySizeException
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastBytesHashTable.expandAndRehash(VectorMapJoinFastBytesHashTable.java:125)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastBytesHashTable.add(VectorMapJoinFastBytesHashTable.java:73)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastBytesHashTable.putRow(VectorMapJoinFastBytesHashTable.java:53)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastTableContainer.putRow(VectorMapJoinFastTableContainer.java:182)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastHashTableLoader.load(VectorMapJoinFastHashTableLoader.java:97)
> ... 9 more
> {code}
> Array size wraps around integer limits.
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