[ https://issues.apache.org/jira/browse/MAPREDUCE-2531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120906#comment-13120906 ]
Hudson commented on MAPREDUCE-2531: ----------------------------------- Integrated in Hadoop-Hdfs-0.23-Build #30 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/30/]) Move MAPREDUCE-2531 changes to Release 0.22 section. shv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1179077 Files : * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt > org.apache.hadoop.mapred.jobcontrol.getAssignedJobID throw class cast > exception > -------------------------------------------------------------------------------- > > Key: MAPREDUCE-2531 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2531 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: client > Affects Versions: 0.22.0 > Reporter: Robert Joseph Evans > Assignee: Robert Joseph Evans > Priority: Blocker > Fix For: 0.22.0, 0.23.0 > > Attachments: MR-2531-V1-trunk.patch, MR-2531-yarn-v1.patch > > > When using a combination of the mapred and mapreduce APIs (PIG) it is > possible to have the following exception > Caused by: java.lang.ClassCastException: org.apache.hadoop.mapreduce.JobID > cannot be cast to > org.apache.hadoop.mapred.JobID > at > org.apache.hadoop.mapred.jobcontrol.Job.getAssignedJobID(Job.java:71) > at > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:239) > at org.apache.pig.PigServer.launchPlan(PigServer.java:1325) > ... 29 more > This is because the JobID is just downcast. It should be calling > JobID.downgrade -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira