[MAPREDUCE-732] node health check script should not log "UNHEALTHY" status for every heartbeat in INFO mode

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0
• Hadoop Flags: Reviewed
• Release Note: Changed log level of addition of blacklisted reason in the JobTracker log to debug instead of INFO
• Assignee: Sreekanth Ramakrishnan
• Reporter: Ramya Sunil
• Created: 08/Jul/09 09:18
• Updated: 24/Aug/10 21:14
• Resolved: 09/Jul/09 10:42

Description

Currently, when a TT is blacklisted by the node health check script, for every heartbeat a message such as the following is being logged.

<date> <time> INFO org.apache.hadoop.mapred.JobTracker: Adding blacklisted reason for tracker : <blacklisted TT> Reason for blacklisting is : NODE_UNHEALTHY

Due to this, the the JT logs fill up rapidly clogging the logdirs. Hence this message should be logged in DEBUG mode instead of INFO mode.