[HBASE-7183] print WARN message if hbase.replication.sizeOfLogQueue is too big

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.98.0, 0.95.2
• Component/s: Replication
• Hadoop Flags: Reviewed
• Release Note: When a replication source's queue is higher than replication.source.log.queue.warn (default 2), it will print a WARN in the log as a new log is added.
• Assignee: Michael Webster
• Reporter: Sho Shimauchi
• Created: 19/Nov/12 06:12
• Updated: 05/Aug/14 20:11
• Resolved: 07/Aug/13 17:15

Description

A metric hbase.replication.sizeOfLogQueue may become big when replication is delaying.
It would be useful if HBase prints WARN log which tells hbase.replication.sizeOfLogQueue is too big.