TaskTracker webui fails to show logs for tasks whose child JVM itself crashes
before process launch
---------------------------------------------------------------------------------------------------
Key: MAPREDUCE-1799
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1799
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: task, tasktracker
Reporter: Vinod K V
Fix For: 0.22.0
In many cases like invalid JVM arguments, JVM started with too much initialize
heap or beyond OS ulimits, the child JVM itself crashes before the process can
even be launched. In these situation, the tasktracker's webUI doesn't show the
logs. This is because of a bug in the TaskLogServlet which displays logs only
when syslog, stdout, stderr are all present. In the JVM crash case, syslog
isn't created and so task-logs aren't displayed at all.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
