[HBASE-3181] Review, document, and fix up Regions-in-Transition timeout logic

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.90.0
• Fix Version/s: 0.90.0
• Component/s: master, regionserver, Zookeeper
• Hadoop Flags: Reviewed
• Assignee: Jonathan Gray
• Reporter: Jonathan Gray
• Created: 31/Oct/10 19:28
• Updated: 20/Nov/15 12:42
• Resolved: 02/Nov/10 02:05

Description

In some of the testing Stack and I have been doing, we've uncovered some issues with concurrent RS failure and when the Master is under heavy load. It's led to situations where we handle ZK events far after they actually occur and have uncovered some issues in our timeout logic.

This jira is about reviewing the timeout semantics, especially around ZK usage, and ensuring that we handle things appropriately.

Issue Links

• incorporates: HBASE-3182 If server hosting META dies or is stopping while processing another server shutdown, IOE accessing META stop shutdown handler from finishing