[HBASE-15098] Normalizer switch in configuration is not used

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.2.0
• Fix Version/s: 1.2.0, 1.3.0, 2.0.0
• Component/s: master
• Hadoop Flags: Reviewed
• Release Note: The config parameter, hbase.normalizer.enabled, has been dropped since it is not used in the code base.
• Assignee: Zhihong Yu
• Reporter: Lars George
• Created: 13/Jan/16 12:03
• Updated: 16/Jun/22 01:17
• Resolved: 20/Jan/16 17:40

Description

The newly added global switch to enable the new normalizer functionality is never used apparently, meaning it is always on. The hbase-default.xml has this:

  <property>
    <name>hbase.normalizer.enabled</name>
    <value>false</value>
    <description>If set to true, Master will try to keep region size
      within each table approximately the same.</description>
  </property>

But only a test class uses it to set the switch to "true". We should implement a proper if statement that checks this value and properly disables the feature cluster wide if not wanted.

Issue Links

• is related to: HBASE-13103 [ergonomics] add region size balancing as a feature of master