[HDFS-4690] Namenode exits if entering safemode while secret manager is edit logging

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.8
• Component/s: namenode, security
• Target Version/s: 0.23.8
• Hadoop Flags: Reviewed
• Assignee: Daryn Sharp
• Reporter: Daryn Sharp
• Created: 12/Apr/13 13:58
• Updated: 05/Jun/13 14:45
• Resolved: 15/Apr/13 20:38

Description

Going into safemode involves stopping the secret manager's thread. An interrupt is sent to this thread. If this occurs while the thread is logging an edit, the resulting exception in the thread will cause the NN to exit.

The fix is to back-port a subset of HDFS-2579 which went into branch 2 & trunk.

Issue Links

• blocks: HDFS-4477 Secondary namenode may retain old tokens
• is related to: HDFS-2579 Starting delegation token manager during safemode fails