[8.19] Lock manager: Fix setup bug (#230519) #230702
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Fixes elastic#230499 The lock manager runs `setupLockManagerIndex` via lodash `once`, so it's not happening on every call. However, if the first call to `setupLockManagerIndex` errors out (e.g. because Elasticsearch isn't ready yet), then every subsequent call will return the cached rejected promise and fail as well, rendering all lock managers in that node instance broken (since `once` keeps its state on module scope) This leads to issues like this (timeout exception thrown from streams, but the call stack originates from the slo plugin setup routine since it's the cached rejected promise): ``` [2025-08-01T18:36:25.080+00:00][ERROR][plugins.streams] TimeoutError: Request timed out at KibanaTransport._request (/usr/share/kibana/node_modules/@elastic/transport/lib/Transport.js:564:50) at processTicksAndRejections (node:internal/process/task_queues:105:5) at runNextTicks (node:internal/process/task_queues:69:3) at listOnTimeout (node:internal/timers:549:9) at processTimers (node:internal/timers:523:7) at /usr/share/kibana/node_modules/@elastic/transport/lib/Transport.js:631:32 at KibanaTransport.request (/usr/share/kibana/node_modules/@elastic/transport/lib/Transport.js:627:20) at KibanaTransport.request (/usr/share/kibana/node_modules/@kbn/core-elasticsearch-client-server-internal/src/create_transport.js:60:16) at Cluster.putComponentTemplate (/usr/share/kibana/node_modules/@elastic/elasticsearch/lib/api/api/cluster.js:600:16) at ensureTemplatesAndIndexCreated (/usr/share/kibana/node_modules/@kbn/lock-manager/src/setup_lock_manager_index.js:56:3) at setupLockManagerIndex (/usr/share/kibana/node_modules/@kbn/lock-manager/src/setup_lock_manager_index.js:110:3) at LockManager.acquire (/usr/share/kibana/node_modules/@kbn/lock-manager/src/lock_manager_client.js:53:5) at withLock (/usr/share/kibana/node_modules/@kbn/lock-manager/src/lock_manager_client.js:242:20) at /usr/share/kibana/node_modules/@kbn/slo-plugin/server/plugin.js:176:7 ``` This PR fixes the problem by not using once but instead keeping the state manually only if the promise succeeds, passing errors through. (cherry picked from commit b4f8488)
SrdjanLL
approved these changes
Aug 6, 2025
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