[ http://issues.apache.org/jira/browse/HADOOP-476?page=comments#action_12456622 ] Yoram Arnon commented on HADOOP-476: ------------------------------------
does the patch address the case where the mapper or reducer are not shipped as part of the command? arguments to -file should be verified locally, but arguments to -reducer and -mapper should be verified against the cluster nodes, unless listed under -file. > Streaming should check for correctness of the task > -------------------------------------------------- > > Key: HADOOP-476 > URL: http://issues.apache.org/jira/browse/HADOOP-476 > Project: Hadoop > Issue Type: Bug > Components: contrib/streaming > Reporter: arkady borkovsky > Assigned To: Sanjay Dahiya > Attachments: Hadoop-476.patch > > > Currently, if anythin is wrong with streaming job, it dies without any > explanation. > Before creating and running actual MapReduce job, Streaming should check if: > -- the executables (or scripts) for -mapper and -reducer are available and > have right permissions > -- the input fragments exist -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira