static long getInitialDelay(Configuration conf) {
    return conf.getLong(POLICY_REFRESHER_CHORE_DELAY_KEY, POLICY_REFRESHER_CHORE_DELAY_DEFAULT);
  }
Extracts the initial delay for the chore from the configuration.
@param conf The configuration object.
@return The configured chore initial delay or the default value.
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/SpaceQuotaRefresherChore.java