The Enterprise Console shows an empty MapReduce Jobs table on the Application Status tab momentarily and then shows MapReduce jobs in the Jobs table again (auto-refresh enabled).
This is caused when the Enterprise Console is unable to obtain a list of MapReduce jobs from the Hadoop JobTracker. This could happen if the Hadoop JobTracker is under heavy load and too busy handling MapReduce jobs, is short on resources, or is just restarted.
Resolving the problem
You should be aware that when JobTracker is busy, short on resources, or just gets restarted, the Enterprise Console might show no MapReduce jobs on the Application Status tab. With auto refresh enabled, the Console should display jobs again once the JobTracker starts to return job information.
Rate this page:
Copyright and trademark information
IBM, the IBM logo and ibm.com are trademarks of International Business Machines Corp., registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the Web at "Copyright and trademark information" at www.ibm.com/legal/copytrade.shtml.