[HDFS-2735] HA: add tests for multiple shared edits dirs

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: HA branch (HDFS-1623)
• Component/s: ha, test
• Target Version/s: HA branch (HDFS-1623)
• Assignee: Unassigned
• Reporter: Eli Collins
• Created: 30/Dec/11 20:32
• Updated: 24/Jan/12 07:03
• Resolved: 24/Jan/12 07:03

Description

You can configure and run with multiple shared edits dirs but we don't have any test coverage for them. In particular, we should cover the behavior of the edit log tailer with multiple dirs, and failure scenarios (eg can we tolerate a single shared dir failure if we have two shared dirs).