@Override
  public CompletableFuture<Boolean> splitSwitch(boolean enabled, boolean drainSplits) {
    return setSplitOrMergeOn(enabled, drainSplits, MasterSwitchType.SPLIT);
  }
Compact the region at specific region server.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/RawAsyncHBaseAdmin.java