[HADOOP-5306] Job History file can have empty string as http port after JobTracker Restart in case of lost TT, which can result in NumberFormatException when JT is restarted 2nd time

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 0.20.0
• Hadoop Flags: Reviewed
• Assignee: Amar Kamat
• Reporter: Ravi Gummadi
• Created: 23/Feb/09 08:43
• Updated: 08/Jul/09 16:53
• Resolved: 26/Feb/09 11:14

Description

HTTP_PORT="" is seen in job history file after JT recovery in case of lost TT. The .recover file of TestJobTrackerRestartWithLostTracker has empty string as HTTP_PORT. If another time JT is restarted and then JT tries to read the history line and tries to createTaskAttempt, it would get NumberFormatException because of Integer.parseInt(httpPort). We somehow need to log a legal value as HTTP_PORT in the history file OR the exception needs to be caught and proper action is to be taken.