@Override
  protected void createTable() throws IOException, InterruptedException {
    MobSnapshotTestingUtils.createMobTable(TEST_UTIL, tableName,
      SnapshotTestingUtils.getSplitKeys(), getNumReplicas(),
      StoreFileTrackerFactory.Trackers.DEFAULT.name(), DelayFlushCoprocessor.class.getName(),
      FAMILY);
  }
This coprocessor is used to delay the flush.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMobCloneSnapshotFromClientCloneLinksAfterDelete.java