@Override
  protected long getTtlMs(Configuration conf) {
    return conf.getLong(TTL_CONF_KEY, DEFAULT_TTL);
  }
Master local storage WAL cleaner that uses the timestamp of the WAL file to determine if it
should be deleted. By default they are allowed to live for {@value #DEFAULT_TTL}
hbase-server/src/main/java/org/apache/hadoop/hbase/master/cleaner/TimeToLiveMasterLocalStoreWALCleaner.java