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Troubleshooting Elasticsearch cluster non nominal Nagios status

Why do that

Nagios reports a Yellow or Red status on an Elasticsearch cluster

What to do

Use the PunchPlatform Admin GUI :

: - To know the concerned ES cluster(s) - To know if it means:

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     -   Under-replication (Yellow status of « online cluster »,
         and some of the indexes within)

            ==> please refer to [Troubleshooting Elasticsearch under-replication](TROUBLESHOOTING_Under-replication_in_an_Elasticsearch_cluster.md).

     -   Some Data unavailability (RED status).

            ==>  please refer to [Troubleshooting Elasticsearch under-replication](TROUBLESHOOTING_Elasticsearch_cluster_unavailability.md