public void persistAll(NamedQueuePayload.NamedQueueEvent namedQueueEvent, Connection connection) {
    if (this.logEventHandler != null) {
      this.logEventHandler.persistAll(namedQueueEvent, connection);
    }
  }
Add all in memory queue records to system table. The implementors can use system table or
direct HDFS file or ZK as persistence system.
hbase-server/src/main/java/org/apache/hadoop/hbase/namequeues/NamedQueueRecorder.java