Document URL: https://docs.openshift.com/container-platform/3.5/install_config/aggregate_logging.html#aggregated-elasticsearch https://docs.openshift.com/container-platform/3.6/install_config/aggregate_logging.html#aggregated-elasticsearch https://docs.openshift.com/container-platform/3.7/install_config/aggregate_logging.html#aggregated-elasticsearch https://docs.openshift.com/container-platform/3.9/install_config/aggregate_logging.html#aggregated-elasticsearch Section Number and Name: Changing the Scale of Elasticsearch Describe the issue: Currently, documentation states the following: """ The simplest way to change the scale of Elasticsearch is to modify the inventory host file a re-run the logging playbook as desribed previously. Assuming you have supplied persistent storage for the deployment, this should not be disruptive. """ Although, this is only possible when openshift_logging_es_cluster_size is bigger than the current ES cluster size. When openshift_logging_es_cluster_size is smaller, then openshift-logging playboo will fail. https://github.com/openshift/openshift-ansible/blob/master/roles/openshift_logging_elasticsearch/tasks/main.yaml#L10-L12 Suggestions for improvement: Add a note stating the following: """ Resize an Elasticsearch cluster using the logging playbook is only possible when the new openshift_logging_es_cluster_size value is higher than the current number of ES nodes (scale up) in the cluster. """ Additional information:
Hi Anping, I opened the following PR with the note and minor text edits to the previous paragraph. https://github.com/openshift/openshift-docs/pull/9456 PTAL, thanks!
@Brandi, LGTM
Commits pushed to master at https://github.com/openshift/openshift-docs https://github.com/openshift/openshift-docs/commit/d71367cd6761b17900041e40c017342ae1699aa4 Bug 1573957 Added note clarifying ES sizing https://github.com/openshift/openshift-docs/commit/67fbdbbd52ca6cb7d546062e42cf123ee6e020d9 Merge pull request #9456 from bmcelvee/BZ1573957 Bug 1573957 Added note clarifying ES sizing
Link to documentation on the customer portal: https://access.redhat.com/documentation/en-us/openshift_container_platform/3.9/html-single/installation_and_configuration/#aggregated-elasticsearch