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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2016/05/25 16:20:12 UTC
[jira] [Updated] (HIVE-13392) disable speculative execution for
ACID Compactor
[ https://issues.apache.org/jira/browse/HIVE-13392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jesus Camacho Rodriguez updated HIVE-13392:
-------------------------------------------
Target Version/s: 1.3.0, 2.2.0 (was: 1.3.0, 2.1.0)
> disable speculative execution for ACID Compactor
> ------------------------------------------------
>
> Key: HIVE-13392
> URL: https://issues.apache.org/jira/browse/HIVE-13392
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 1.0.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
>
> https://developer.yahoo.com/hadoop/tutorial/module4.html
> Speculative execution is enabled by default. You can disable speculative execution for the mappers and reducers by setting the mapred.map.tasks.speculative.execution and mapred.reduce.tasks.speculative.execution JobConf options to false, respectively.
> CompactorMR is currently not set up to handle speculative execution and may lead to something like
> {code}
> 2016-02-08 22:56:38,256 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException): Failed to CREATE_FILE /apps/hive/warehouse/service_logs_v2/ds=2016-01-20/_tmp_6cf08b9f-c2e2-4182-bc81-e032801b147f/base_13858600/bucket_00004 for DFSClient_attempt_1454628390210_27756_m_000001_1_131224698_1 on 172.18.129.12 because this file lease is currently owned by DFSClient_attempt_1454628390210_27756_m_000001_0_-2027182532_1 on 172.18.129.18
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:2937)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:2562)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2451)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2335)
> at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:688)
> at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:397)
> at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2151)
> {code}
> Short term: disable speculative execution for this job
> Longer term perhaps make each task write to dir with UUID...
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