If you are implementing a single-node ES cluster, you need to set the number of replicas to zero to avoid yellow status from having too few nodes. See .

","block-inline":true,"nestedContent":{"type":"doc","content":[{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"heading","attrs":{"level":3},"content":[{"text":"Single-node ES cluster","type":"text"}]},{"type":"paragraph","content":[{"text":"If you are implementing a single-node ES cluster, you need to set the number of replicas to zero to avoid yellow status from having too few nodes. See ","type":"text"},{"text":"Scaling Elasticsearch","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/public/pages/2443809640"}}]},{"text":".","type":"text"}]}]}],"version":1},"reason":"An info macro in a list item can't be created or edited in the new editor."}}}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Verify the ","type":"text"},{"text":"mlockall","type":"text","marks":[{"type":"strong"}]},{"text":" setting is true. Contact DataCore Support if it is not.","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"curl -XGET \"ES_HOST:9200/_nodes/process?pretty\"","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Verify the ","type":"text"},{"text":"HTTP_PROXY","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"http_proxy","type":"text","marks":[{"type":"code"}]},{"text":" environment variables are not set if cURL requests do not send an expected response. Implementing a proxy for root users commands causes communication issues between ES nodes if implemented by an IT organization or security policy.","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Proceed to the next server.","type":"text"}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"At this point, all ES servers should be installed and started. Use one of these methods to verify Elasticsearch is running (the status is yellow or green):","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"curl -XGET ES_HOST:9200/_cluster/health","type":"text"}]},{"type":"codeBlock","attrs":{"language":"shell"},"content":[{"text":"systemctl status elasticsearch","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Verify the ","type":"text"},{"text":"HTTP_PROXY","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"http_proxy","type":"text","marks":[{"type":"code"}]},{"text":" environment variables are not set if cURL requests do not send an expected response. Implementing a proxy for root users commands causes communication issues between ES nodes if implemented by an IT organization or security policy.","type":"text"}]}]}]},{"type":"paragraph","content":[{"type":"inlineExtension","attrs":{"extensionType":"com.atlassian.confluence.migration","extensionKey":"__confluenceADFMigrationUnsupportedContentInternalExtension__","text":"","parameters":{"cxhtml":"Tip

When troubleshooting Elasticsearch issues, run the status command (systemctl status elasticsearch) and then look at the log entries:
/var/log/elasticsearch/CLUSTERNAME.log\n

","block-inline":true,"nestedContent":{"type":"doc","content":[{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"heading","attrs":{"level":3},"content":[{"text":"Tip","type":"text"}]},{"type":"paragraph","content":[{"text":"When troubleshooting Elasticsearch issues, run the status command (","type":"text"},{"text":"systemctl status elasticsearch)","type":"text","marks":[{"type":"code"}]},{"text":" and then look at the log entries: ","type":"text"},{"type":"hardBreak"},{"text":"/var/log/elasticsearch/CLUSTERNAME.log\n","type":"text","marks":[{"type":"code"}]}]}]}],"version":1},"reason":"An info macro in a list item can't be created or edited in the new editor."}}}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"In the Swarm UI, create a new search feed. (See ","type":"text"},{"text":"Managing Feeds","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/public/pages/2443814122"}}]},{"text":".)","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Verify the ","type":"text"},{"text":"[storage cluster] managementPassword","type":"text","marks":[{"type":"code"}]},{"text":" is set properly in the gateway.cfg file if errors are encountered during feed creation. Correct the value and restart the gateway service if a change is needed.","type":"text"}]}]}]}]}]},{"type":"panel","attrs":{"panelType":"success"},"content":[{"type":"heading","attrs":{"level":3},"content":[{"text":"Best Practice","type":"text"}]},{"type":"paragraph","content":[{"text":"Do not skip creating a search feed if you have an available Elasticsearch cluster with enough resources. A search feed simplifies enumerating your buckets/domains/clusters and making use of your valuable metadata.","type":"text"}]}]},{"type":"paragraph","content":[{"text":"Indexing is performed when the feed shows 0 \"pending evaluation\".","type":"text"}]}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"heading","attrs":{"level":3},"content":[{"text":"Tip","type":"text"}]},{"type":"paragraph","content":[{"text":"To set up the ability to restore search data on demand, see ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://perifery.atlassian.net/wiki/spaces/public/pages/2443813262"}},{"text":".","type":"text"}]}]},{"type":"paragraph"}],"version":1}

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