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https://issues.apache.org/jira/browse/HIVE-11449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654340#comment-14654340
]
Mostafa Mokhtar commented on HIVE-11449:
----------------------------------------
[~jdere]
I don't agree with throwing an exception, query should continue running but
with limited memory.
Based on minWbSize we should reduce the number of partitions.
> HybridHashTableContainer should throw exception if not enough memory to
> create the hash tables
> ----------------------------------------------------------------------------------------------
>
> Key: HIVE-11449
> URL: https://issues.apache.org/jira/browse/HIVE-11449
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-11449.1.patch
>
>
> Currently it only logs a warning message:
> {code}
> public static int calcNumPartitions(long memoryThreshold, long dataSize,
> int minNumParts,
> int minWbSize, HybridHashTableConf nwayConf) throws IOException {
> int numPartitions = minNumParts;
> if (memoryThreshold < minNumParts * minWbSize) {
> LOG.warn("Available memory is not enough to create a
> HybridHashTableContainer!");
> }
> {code}
> Because we only log a warning, processing continues and hits a
> hard-to-diagnose error (log below also includes extra logging I added to help
> track this down). We should probably just fail the query a useful logging
> message instead.
> {noformat}
> 2015-07-30 18:49:29,696 [pool-1269-thread-8()] WARN
> org.apache.hadoop.hive.ql.exec.persistence.HybridHashTableContainer:
> Available memory is not enough to create HybridHashTableContainers
> consistently!
> 2015-07-30 18:49:29,696 [pool-1269-thread-8()] ERROR
> org.apache.hadoop.hive.ql.exec.persistence.BytesBytesMultiHashMap: ***
> initialCapacity 1: 100000
> 2015-07-30 18:49:29,696 [pool-1269-thread-8()] ERROR
> org.apache.hadoop.hive.ql.exec.persistence.BytesBytesMultiHashMap: ***
> initialCapacity 2: 131072
> 2015-07-30 18:49:29,696 [pool-1269-thread-8()] ERROR
> org.apache.hadoop.hive.ql.exec.persistence.BytesBytesMultiHashMap: ***
> maxCapacity: 0
> 2015-07-30 18:49:29,696 [pool-1269-thread-8()] ERROR
> org.apache.hadoop.hive.ql.exec.persistence.BytesBytesMultiHashMap: ***
> initialCapacity 3: 0
> 2015-07-30 18:49:29,699
> [TezTaskRunner_attempt_1437197396589_0685_1_49_000000_2(attempt_1437197396589_0685_1_49_000000_2)]
> ERROR org.apache.hadoop.hive.ql.exec.tez.TezProcessor:
> java.lang.RuntimeException: Map operator initialization failed
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.init(MapRecordProcessor.java:258)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:168)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:157)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:349)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:71)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:60)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:60)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:35)
> at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Async
> initialization failed
> at
> org.apache.hadoop.hive.ql.exec.Operator.completeInitialization(Operator.java:419)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:514)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:467)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:379)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.init(MapRecordProcessor.java:243)
> ... 15 more
> Caused by: java.util.concurrent.ExecutionException: java.lang.AssertionError:
> Capacity must be a power of two
> at java.util.concurrent.FutureTask.report(FutureTask.java:122)
> at java.util.concurrent.FutureTask.get(FutureTask.java:188)
> at
> org.apache.hadoop.hive.ql.exec.Operator.completeInitialization(Operator.java:409)
> ... 20 more
> Caused by: java.lang.AssertionError: Capacity must be a power of two
> at
> org.apache.hadoop.hive.ql.exec.persistence.BytesBytesMultiHashMap.validateCapacity(BytesBytesMultiHashMap.java:573)
> at
> org.apache.hadoop.hive.ql.exec.persistence.BytesBytesMultiHashMap.<init>(BytesBytesMultiHashMap.java:178)
> at
> org.apache.hadoop.hive.ql.exec.persistence.HybridHashTableContainer$HashPartition.<init>(HybridHashTableContainer.java:120)
> at
> org.apache.hadoop.hive.ql.exec.persistence.HybridHashTableContainer.<init>(HybridHashTableContainer.java:296)
> at
> org.apache.hadoop.hive.ql.exec.persistence.HybridHashTableContainer.<init>(HybridHashTableContainer.java:222)
> at
> org.apache.hadoop.hive.ql.exec.tez.HashTableLoader.load(HashTableLoader.java:188)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTable(MapJoinOperator.java:295)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator$1.call(MapJoinOperator.java:178)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator$1.call(MapJoinOperator.java:174)
> at
> org.apache.hadoop.hive.ql.exec.tez.LlapObjectCache.retrieve(LlapObjectCache.java:105)
> at
> org.apache.hadoop.hive.ql.exec.tez.LlapObjectCache$1.call(LlapObjectCache.java:132)
> ... 4 more
> {noformat}
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