@RestrictedApi(explanation = "Should only be called in tests", link = "",
      allowedOnPath = ".*/src/test/.*")
  int getRefCntValue() {
    return this.refCnt.refCnt();
  }
Close this instance since it won't be used any more, try to put the chunks back to pool
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreLABImpl.java