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Aaron Dossett commented on HIVE-11221: -------------------------------------- I am seeing a different NPE when I concatenate a partition with TEZ, but trying the same command in MR works fine. This was the closest JIRA I could to this issue. Does anyone this this a new issue? alter table mytable partition (partition_date='2015-10-30') concatenate; Status: Failed Vertex failed, vertexName=File Merge, vertexId=vertex_1446684298977_0879_1_00, diagnostics=[Vertex vertex_1446684298977_0879_1_00 [File Merge] killed/failed due to:ROOT_INPUT_INIT_FAILURE, Vertex Input: [hdfs://namenode/apps/hive/warehouse/mydb.db/estore/partition_date=2015-10-30] initializer failed, vertex=vertex_1446684298977_0879_1_00 [File Merge], java.lang.NullPointerException at org.apache.hadoop.hive.ql.io.HiveInputFormat.init(HiveInputFormat.java:265) at org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.getSplits(CombineHiveInputFormat.java:452) at org.apache.tez.mapreduce.hadoop.MRInputHelpers.generateOldSplits(MRInputHelpers.java:441) at org.apache.tez.mapreduce.hadoop.MRInputHelpers.generateInputSplitsToMem(MRInputHelpers.java:295) at org.apache.tez.mapreduce.common.MRInputAMSplitGenerator.initialize(MRInputAMSplitGenerator.java:124) at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable$1.run(RootInputInitializerManager.java:245) at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable$1.run(RootInputInitializerManager.java:239) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628) at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable.call(RootInputInitializerManager.java:239) at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable.call(RootInputInitializerManager.java:226) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) > In Tez mode, alter table concatenate orc files can intermittently fail with > NPE > ------------------------------------------------------------------------------- > > Key: HIVE-11221 > URL: https://issues.apache.org/jira/browse/HIVE-11221 > Project: Hive > Issue Type: Bug > Affects Versions: 1.3.0, 2.0.0 > Reporter: Prasanth Jayachandran > Assignee: Prasanth Jayachandran > Fix For: 1.3.0, 2.0.0 > > Attachments: HIVE-11221.1.patch > > > We are not waiting for input ready events which can trigger occasional NPE if > input is not actually ready. > Stacktrace: > {code} > java.lang.NullPointerException > at > org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:186) > at > org.apache.hadoop.hive.ql.exec.tez.MergeFileTezProcessor.run(MergeFileTezProcessor.java:42) > at > org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:324) > at > org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:176) > at > org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:168) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628) > at > org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:168) > at > org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:163) > at java.util.concurrent.FutureTask.run(FutureTask.java:262) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.NullPointerException > at > org.apache.hadoop.hive.ql.io.HiveInputFormat.init(HiveInputFormat.java:265) > at > org.apache.hadoop.hive.ql.io.HiveInputFormat.pushProjectionsAndFilters(HiveInputFormat.java:478) > at > org.apache.hadoop.hive.ql.io.HiveInputFormat.pushProjectionsAndFilters(HiveInputFormat.java:471) > at > org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.getRecordReader(CombineHiveInputFormat.java:648) > at > org.apache.tez.mapreduce.lib.MRReaderMapred.setupOldRecordReader(MRReaderMapred.java:146) > at > org.apache.tez.mapreduce.lib.MRReaderMapred.<init>(MRReaderMapred.java:73) > at > org.apache.tez.mapreduce.input.MRInput.initializeInternal(MRInput.java:483) > at > org.apache.tez.mapreduce.input.MRInputLegacy.init(MRInputLegacy.java:108) > at > org.apache.hadoop.hive.ql.exec.tez.MergeFileRecordProcessor.getMRInput(MergeFileRecordProcessor.java:220) > at > org.apache.hadoop.hive.ql.exec.tez.MergeFileRecordProcessor.init(MergeFileRecordProcessor.java:72) > at > org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:162) > ... 13 more > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)