public int getLogSearchMetadataCacheExpireTimeout() {
    return NumberUtils.toInt(getProperty(LOGSEARCH_METADATA_CACHE_EXPIRE_TIMEOUT));
  }
Get the max time, in hours, to hold data in the LogSearch
  metadata cache prior to expiring the cache and re-loading
  the data from the LogSearch Portal service.

@return max number of hours that the LogSearch metadata is cached
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java