Huaxiang Sun created HBASE-26649: ------------------------------------ Summary: Support meta replica LoadBalance mode for RegionLocator#getAllRegionLocations() Key: HBASE-26649 URL: https://issues.apache.org/jira/browse/HBASE-26649 Project: HBase Issue Type: Improvement Components: meta replicas Affects Versions: 2.4.9 Reporter: Huaxiang Sun Assignee: Huaxiang Sun
When HBase application restarts, its meta cache is empty. Normally, it will fill the meta cache one region at a time by scanning the meta region. This will cause huge pressure to the region server hosting meta during application restart. It can prefetching all region locations by calling RegionLocator#getAllRegionLocations().Meta replica LoadBalance mode is support in 2.4, it will be nice to load balance RegionLocator#getAllRegionLocations() to all meta replica regions so batch scan can spread across all meta replica regions. -- This message was sent by Atlassian Jira (v8.20.1#820001)