Mithun Radhakrishnan created HIVE-10213: -------------------------------------------
Summary: MapReduce jobs using dynamic-partitioning fail on commit. Key: HIVE-10213 URL: https://issues.apache.org/jira/browse/HIVE-10213 Project: Hive Issue Type: Bug Components: HCatalog Reporter: Mithun Radhakrishnan Assignee: Mithun Radhakrishnan I recently ran into a problem in {{TaskCommitContextRegistry}}, when using dynamic-partitions. Consider a MapReduce program that reads HCatRecords from a table (using HCatInputFormat), and then writes to another table (with identical schema), using HCatOutputFormat. The Map-task fails with the following exception: {code} Error: java.io.IOException: No callback registered for TaskAttemptID:attempt_1426589008676_509707_m_000000_0@hdfs://crystalmyth.myth.net:8020/user/mithunr/mythdb/target/_DYN0.6784154320609959/grid=__HIVE_DEFAULT_PARTITION__/dt=__HIVE_DEFAULT_PARTITION__ at org.apache.hive.hcatalog.mapreduce.TaskCommitContextRegistry.commitTask(TaskCommitContextRegistry.java:56) at org.apache.hive.hcatalog.mapreduce.FileOutputCommitterContainer.commitTask(FileOutputCommitterContainer.java:139) at org.apache.hadoop.mapred.Task.commit(Task.java:1163) at org.apache.hadoop.mapred.Task.done(Task.java:1025) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:345) 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:1694) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) {code} {{TaskCommitContextRegistry::commitTask()}} uses call-backs registered from {{DynamicPartitionFileRecordWriter}}. But in case {{HCatInputFormat}} and {{HCatOutputFormat}} are both used in the same job, the {{DynamicPartitionFileRecordWriter}} might only be exercised in the Reducer. I'm relaxing the IOException, and log a warning message instead of just failing. (I'll post the fix shortly.) -- This message was sent by Atlassian JIRA (v6.3.4#6332)