Reports are not getting updated with new data after a few days - TaskTracker crashed (Doc ID 1506896.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle WebCenter Sites - Version 2.5 and later
Information in this document applies to any platform.

Symptoms

Reports are not showing any new data for the past few days. All of the analytics processes are still running (hdfsagent, hadoop-jobs, analytics.war, sensor.war, etc.), but noticed TaskTracker on hadoop is not running.

In the namenode log of hadoop, this error was found:

2012-06-27 15:19:21,559 INFO org.apache.hadoop.mapred.TaskInProgress: Error from attempt_201207151235_0852_r_000000_0: Lost task tracker: tracker_analyticstest.oracle.com:localhost.localdomain/127.0.0.1:52080

Cause

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