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# Backport This will backport the following commits from `main` to `8.x`: - [Update Dev Tool limitation about high availability. (#172507)](https://github.com/elastic/kibana/pull/172507) <!--- Backport version: 9.4.3 --> ### Questions ? Please refer to the [Backport tool documentation](https://github.com/sqren/backport) <!--BACKPORT [{"author":{"name":"Xavier Merlin","email":"48214502+merlixelastic@users.noreply.github.com"},"sourceCommit":{"committedDate":"2025-01-29T11:49:10Z","message":"Update Dev Tool limitation about high availability. (#172507)\n\nUpdating limitation of dev tool which is not sending request with round\r\nrobin\r\n\r\n## Summary\r\n\r\nWe believe Console always tries to connect to the 1st host in\r\nelasticsearch.hosts but if it's unavailable then it will try the next\r\none, the code for this can be found\r\n[here](0d613e58cf/src/plugins/console/server/routes/api/console/proxy/create_handler.ts (L125)
).\r\nSo in that case, as long as the node is still available, it will receive\r\nall the requests from Console.\r\n\r\n\r\n### Checklist\r\n\r\nDelete any items that are not applicable to this PR.\r\n\r\n- [ ] Any text added follows [EUI's writing\r\nguidelines](https://elastic.github.io/eui/#/guidelines/writing), uses\r\nsentence case text and includes [i18n\r\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\r\n- [ ]\r\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\r\nwas added for features that require explanation or tutorials\r\n\r\nCo-authored-by: florent-leborgne <florent.leborgne@elastic.co>","sha":"199e75e51f64e7429960c121b6746ad347b3efec","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v9.0.0","docs","documentation","backport:version","v8.17.0","v8.18.0"],"title":"Update Dev Tool limitation about high availability.","number":172507,"url":"https://github.com/elastic/kibana/pull/172507","mergeCommit":{"message":"Update Dev Tool limitation about high availability. (#172507)\n\nUpdating limitation of dev tool which is not sending request with round\r\nrobin\r\n\r\n## Summary\r\n\r\nWe believe Console always tries to connect to the 1st host in\r\nelasticsearch.hosts but if it's unavailable then it will try the next\r\none, the code for this can be found\r\n[here](0d613e58cf/src/plugins/console/server/routes/api/console/proxy/create_handler.ts (L125)
).\r\nSo in that case, as long as the node is still available, it will receive\r\nall the requests from Console.\r\n\r\n\r\n### Checklist\r\n\r\nDelete any items that are not applicable to this PR.\r\n\r\n- [ ] Any text added follows [EUI's writing\r\nguidelines](https://elastic.github.io/eui/#/guidelines/writing), uses\r\nsentence case text and includes [i18n\r\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\r\n- [ ]\r\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\r\nwas added for features that require explanation or tutorials\r\n\r\nCo-authored-by: florent-leborgne <florent.leborgne@elastic.co>","sha":"199e75e51f64e7429960c121b6746ad347b3efec"}},"sourceBranch":"main","suggestedTargetBranches":["8.17","8.x"],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/172507","number":172507,"mergeCommit":{"message":"Update Dev Tool limitation about high availability. (#172507)\n\nUpdating limitation of dev tool which is not sending request with round\r\nrobin\r\n\r\n## Summary\r\n\r\nWe believe Console always tries to connect to the 1st host in\r\nelasticsearch.hosts but if it's unavailable then it will try the next\r\none, the code for this can be found\r\n[here](0d613e58cf/src/plugins/console/server/routes/api/console/proxy/create_handler.ts (L125)
).\r\nSo in that case, as long as the node is still available, it will receive\r\nall the requests from Console.\r\n\r\n\r\n### Checklist\r\n\r\nDelete any items that are not applicable to this PR.\r\n\r\n- [ ] Any text added follows [EUI's writing\r\nguidelines](https://elastic.github.io/eui/#/guidelines/writing), uses\r\nsentence case text and includes [i18n\r\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\r\n- [ ]\r\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\r\nwas added for features that require explanation or tutorials\r\n\r\nCo-authored-by: florent-leborgne <florent.leborgne@elastic.co>","sha":"199e75e51f64e7429960c121b6746ad347b3efec"}},{"branch":"8.17","label":"v8.17.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"8.x","label":"v8.18.0","branchLabelMappingKey":"^v8.18.0$","isSourceBranch":false,"state":"NOT_CREATED"}]}] BACKPORT--> Co-authored-by: Xavier Merlin <48214502+merlixelastic@users.noreply.github.com>
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@ -91,7 +91,7 @@ active in case of failure from the currently used instance.
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[[high-availability]]
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=== High availability across multiple {es} nodes
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{kib} can be configured to connect to multiple {es} nodes in the same cluster. In situations where a node becomes unavailable,
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{kib} will transparently connect to an available node and continue operating. Requests to available hosts will be routed in a round robin fashion.
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{kib} will transparently connect to an available node and continue operating. Requests to available hosts will be routed in a round robin fashion (except for Dev Tools which will connect only to the first node available).
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In kibana.yml:
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[source,js]
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