Troubleshooting Gateway and Elasticsearch

Note how Gateway 5.4 and higher operates when Elasticsearch is down when troubleshooting Gateway with Elasticsearch:

• Gateway starts even if the Elasticsearch cluster is down or in a red state.

• Operations requiring Elasticsearch fail, such as listings and graphs for metering and metrics.

• Reads and writes succeed.

• The Storage UI continues to work.

• Gateway periodically checks for Elasticsearch, and full functionality resumes once Elasticsearch is back up and fully initialized.

Login to the Storage UI, and view the Elasticsearch section on the Dashboard for real-time status information about the Elasticsearch cluster. 

See https://www.elastic.co/guide/en/elasticsearch/reference/7.16/fix-common-cluster-issues.html and Reports > Elasticsearch page for detailed troubleshooting.

See Elasticsearch Reports in Using Cluster Reports.