[HBASE-952] Deadlock in HRegion.batchUpdate

• Type: Sub-task
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.19.0
• Fix Version/s: 0.19.0
• Assignee: Jim Kellerman
• Reporter: Jim Kellerman
• Created: 23/Oct/08 19:22
• Updated: 13/Sep/09 22:26
• Resolved: 23/Oct/08 19:45

Description

public void batchUpdate(BatchUpdate[] bus, Integer[] locks)

Takes out splitsAndClosesLock before calling checkResources. If checkResources stalls waiting for a cache flush, and a split starts before the flush, HRegion.close deadlocks when it tries to acquire splitsAndClosesLock

This never resolves because batchUpdate is waiting for a flush that will never happen since close has already disabled them.