[ASTERIXDB-1948] Potential file leaks if crash happens during rebalance

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: CLUS - Cluster management
• Assignee: Murtadha Makki Al Hubail
• Reporter: Yingyi Bu
• Created: 20/Jun/17 06:24
• Updated: 06/Sep/17 21:18

Description

Refer to the rebalance design doc:
https://cwiki.apache.org/confluence/display/ASTERIXDB/Rebalance+API+and+Internal+Implementation

In the event of failures, there could be:

– leaked source files (from metadata transaction a) which will be reclaimed in the next rebalance operation,

– or leaked target files (from metadata transaction b) which will not be reclaimed,

– or leaked node group name (from metadata transaction a) which doesn't prevent the success of the next rebalance operation.