[HBASE-25588] Excessive logging of "hbase.zookeeper.useMulti is deprecated. Default to true always."

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.1
• Fix Version/s: 2.5.0, 3.0.0-alpha-2, 2.4.6, 2.3.7
• Component/s: logging, Operability, Replication
• Hadoop Flags: Reviewed
• Assignee: Andrew Kyle Purtell
• Reporter: Andrew Kyle Purtell
• Created: 18/Feb/21 19:12
• Updated: 23/Sep/21 17:33
• Resolved: 31/Aug/21 16:40

Description

Log line printed frequently, can be as often as once per second:

21:56:46.381 WARN [RS_REFRESH_PEER-regionserver/ip-172-31-51-4:8120-0.replicationSource,
1.replicationSource.shipperip-172-31-51-4.us-west-2.compute.internal%2C8120%2C1613596855628.ip-172-31-51-4.us-west-2.compute.internal%2C8120%2C1613596855628.default,1]
   org.apache.hadoop.hbase.zookeeper.ZKUtil - hbase.zookeeper.useMulti is deprecated. Default to true always.

The old configuration in place had hbase.zookeeper.useMulti set to true. This is the default and while I understand this setting is deprecated, constantly warning about it, especially when it conforms to the default, is log spam.

Warn about this once over the lifetime of the replication source.

Issue Links

• links to: GitHub Pull Request #3640