[TAJO-1251] Query is hanging occasionally by shuffle report

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 0.10.0
• Component/s: Data Shuffle, QueryMaster
• Assignee: Jinho Kim
• Reporter: Jinho Kim
• Created: 16/Dec/14 07:00
• Updated: 09/Jan/15 11:29
• Resolved: 09/Jan/15 11:09

Description

Currently, Query is failed when race condition occur in SubQuery.waitingIntermediateReport(). If a event is not complete, other events will be blocked in AsyncDispatcher.
We should remove the thread lock in event handler.

2014-12-12 14:05:28,211 INFO org.apache.tajo.master.querymaster.SubQuery: eb_1412172843714_0001_000003, receiveExecutionBlockReport:3
2014-12-12 14:05:28,227 ERROR org.apache.tajo.master.querymaster.SubQuery: eb_1412172843714_0001_000003, Timeout while receiving intermediate reports: 121471 ms

Issue Links

• relates to: TAJO-1279 Cleanup TajoAsyncDispatcher and interrupt stop events