Configure Log Retention

By default, Elasticsearch indexes 2 days of logs. Based on your requirements, you can configure a different retention period for Elasticsearch.

The following cron job runs each day to purge logs based on the retention period.
$min $hour * * * $ES_HOME/bin/curator --config $ES_HOME/etc/elasticsearch/curator.yml $ES_HOME/etc/elasticsearch/curator_actions/delete_indices.yml >> $ES_HOME/var/log/elasticsearch/purgeData.log 2>&1 "

Log Retention for Elasticsearch

Complete the following steps to edit the log retention period for Elasticsearch:
  1. Open the /opt/mapr/elasticsearch/elasticsearch-<version>/etc/elasticsearch/curator_actions/delete_indices.yml file.
  2. Update the unit and unit_count to the new retention period.
    Property Description
    unit The unit of measure for the retention period. Valid parameter values: days and weeks.
    unit_count The number of days or weeks.

    For example, this version of the delete_indices.yml file retains logs for 2 days.

        action: delete_indices
        description: >-
          Delete indices older than 2 days (based on index name), for mapr_monitoring-
          prefixed indices. Ignore the error if the filter does not result in an
          actionable list of indices (ignore_empty_list) and exit cleanly.
          ignore_empty_list: True
          continue_if_exception: False
          disable_action: False
        - filtertype: pattern
          kind: prefix
          value: mapr_monitoring-
        - filtertype: age
          source: name
          direction: older
          timestring: '%Y.%m.%d'
          unit: days
          unit_count: 2

Log Retention for Kibana

Each time you start Kibana, it logs data to its log file. You cannot delete the log file while Kibana is running.

To purge the log files:
  1. Restart Kibana so that a new log file is created.
    maprcli node services -name kibana -nodes <kibana hostname/IPaddress> -action restart
  2. Delete all the old log files (kibana.*.<#>) from the following location: /opt/mapr/kibana/kibana-<version>/var/log/kibana/.