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Qiuzhuang Lian commented on HIVE-13998: --------------------------------------- it seems that here piece of code needs to double-checking: public Properties toProperties() { Properties props = new Properties(); props.putAll(this); return props; } > CompactorMR for ORC ACID throws NPE > ----------------------------------- > > Key: HIVE-13998 > URL: https://issues.apache.org/jira/browse/HIVE-13998 > Project: Hive > Issue Type: Bug > Components: ORC > Affects Versions: 1.2.1 > Environment: Hadoop 2.6.2+Hive 1.2.1 > Reporter: Qiuzhuang Lian > > When job CompactorMR is running, we see NPE stack as follows, > 2016-06-12 14:20:34,463 INFO [Thread-51] > org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Added > attempt_1464322345445_83343_m_000003_1 to list of failed maps > 2016-06-12 14:20:34,597 INFO [IPC Server handler 7 on 40704] > org.apache.hadoop.mapred.TaskAttemptListenerImpl: Progress of TaskAttempt > attempt_1464322345445_83343_m_000002_0 is : 0.0 > 2016-06-12 14:20:34,599 FATAL [IPC Server handler 12 on 40704] > org.apache.hadoop.mapred.TaskAttemptListenerImpl: Task: > attempt_1464322345445_83343_m_000002_0 - exited : > java.lang.NullPointerException > at java.util.Hashtable.put(Hashtable.java:514) > at java.util.Hashtable.putAll(Hashtable.java:587) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$StringableMap.toProperties(CompactorMR.java:608) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.getWriter(CompactorMR.java:541) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:517) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:491) > at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) > at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1656) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) > 2016-06-12 14:20:34,599 INFO [IPC Server handler 12 on 40704] > org.apache.hadoop.mapred.TaskAttemptListenerImpl: Diagnostics report from > attempt_1464322345445_83343_m_000002_0: Error: java.lang.NullPointerException > at java.util.Hashtable.put(Hashtable.java:514) > at java.util.Hashtable.putAll(Hashtable.java:587) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$StringableMap.toProperties(CompactorMR.java:608) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.getWriter(CompactorMR.java:541) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:517) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:491) > at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) > at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1656) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) > 2016-06-12 14:20:34,599 INFO [AsyncDispatcher event handler] > org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: Diagnostics > report from attempt_1464322345445_83343_m_000002_0: Error: > java.lang.NullPointerException > at java.util.Hashtable.put(Hashtable.java:514) > at java.util.Hashtable.putAll(Hashtable.java:587) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$StringableMap.toProperties(CompactorMR.java:608) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.getWriter(CompactorMR.java:541) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:517) > at > org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:491) > at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) > at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163) > 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:1656) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) -- This message was sent by Atlassian JIRA (v6.3.4#6332)