[jira] [Created] (HBASE-24581) Replica regions should not trigger any compaction

["Huaxiang Sun (Jira)" <ji...@apache.org>]

Huaxiang Sun created HBASE-24581:
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             Summary: Replica regions should not trigger any compaction
                 Key: HBASE-24581
                 URL: https://issues.apache.org/jira/browse/HBASE-24581
             Project: HBase
          Issue Type: Bug
          Components: read replicas
    Affects Versions: 2.3.0
            Reporter: Huaxiang Sun
            Assignee: Huaxiang Sun


I found that in certain cases replica regions can trigger compaction, such as 
{code:java}
@Override
public void postOpenDeployTasks(final PostOpenDeployContext context) throws IOException {
  HRegion r = context.getRegion();
  long openProcId = context.getOpenProcId();
  long masterSystemTime = context.getMasterSystemTime();
  rpcServices.checkOpen();
  LOG.info("Post open deploy tasks for {}, openProcId={}, masterSystemTime={}",
    r.getRegionInfo().getRegionNameAsString(), openProcId, masterSystemTime);
  // Do checks to see if we need to compact (references or too many files)
  // TODO: SHX, do not do this for replica regions? Otherwise, it is going to lost data locality for primary regions.
  for (HStore s : r.stores.values()) {
    if (s.hasReferences() || s.needsCompaction()) {
      this.compactSplitThread.requestSystemCompaction(r, s, "Opening Region");
    }
  }
 {code}



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