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.
    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.

    actions:
  1:
    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.
    options:
      ignore_empty_list: True
      timeout_override:
      continue_if_exception: False
      disable_action: False
    filters:
    - filtertype: pattern
      kind: prefix
      value: mapr_monitoring-
      exclude:
    - filtertype: age
      source: name
      direction: older
      timestring: '%Y.%m.%d'
      unit: days
      unit_count: 2
      exclude:

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/.