5.4.4. TaskTracker process down alert

This alert is triggered if the configured number of TaskTracker processes cannot be confirmed to be up and listening on the network for the configured critical threshold, given in seconds. It uses the Nagios check_tcp plugin. Potential causes
  • Hardware failure

  • Network connectivity issues

  • Resource exhaustion (disk space, file handles, memory) for the TaskTracker process Possible remedies
  • Login to the individual TaskTracker host and check the TaskTracker logs

  • Restart TaskTracker

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