[HDFS-2772] HA: On transition to active, standby should not swallow ELIE

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HA branch (HDFS-1623)
• Fix Version/s: HA branch (HDFS-1623)
• Component/s: ha, namenode
• Target Version/s: HA branch (HDFS-1623)
• Hadoop Flags: Reviewed
• Assignee: Aaron Myers
• Reporter: Aaron Myers
• Created: 10/Jan/12 01:04
• Updated: 17/Jan/12 12:56
• Resolved: 16/Jan/12 22:16

Description

EditLogTailer#doTailEdits currently catches, logs, and swallows EditLogInputException. This is fine in the case when the standby is sitting idly behind tailing logs. However, when the standby is transitioning to active, swallowing this exception is incorrect, since it could cause the standby to silently fail to load all the edits before becoming active.

Issue Links

• is blocked by: HADOOP-7970 All HAServiceProtocol methods have to throw IOException since they are invoked over the network