[8.x] [Response Ops][Task Manager] Propagate `msearch` error status code so backpressure mechanism responds correctly (#197501) #198035
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… backpressure mechanism responds correctly (elastic#197501) Resolves elastic/response-ops-team#240 ## Summary Creating an `MsearchError` class that preserves the status code from any msearch errors. These errors are already piped to the managed configuration observable that watches for and responds to ES errors from the update by query claim strategy so I updated that filter to filter for msearch 429 and 503 errors as well. ## To Verify 1. Make sure you're using the mget claim strategy (`xpack.task_manager.claim_strategy: 'mget'`) and start ES and Kibana. 2. Inject a 429 error into an msearch response. ``` --- a/x-pack/plugins/task_manager/server/task_store.ts +++ b/x-pack/plugins/task_manager/server/task_store.ts @@ -571,6 +571,8 @@ export class TaskStore { }); const { responses } = result; + responses[0].status = 429; + const versionMap = this.createVersionMap([]); ``` 3. See task manager log the msearch errors and eventually reduce polling capacity ``` [2024-10-23T15:35:59.255-04:00][ERROR][plugins.taskManager] Failed to poll for work: Unexpected status code from taskStore::msearch: 429 [2024-10-23T15:35:59.756-04:00][ERROR][plugins.taskManager] Failed to poll for work: Unexpected status code from taskStore::msearch: 429 [2024-10-23T15:36:00.257-04:00][ERROR][plugins.taskManager] Failed to poll for work: Unexpected status code from taskStore::msearch: 429 [2024-10-23T15:36:00.757-04:00][ERROR][plugins.taskManager] Failed to poll for work: Unexpected status code from taskStore::msearch: 429 ... [2024-10-23T15:36:06.267-04:00][WARN ][plugins.taskManager] Poll interval configuration is temporarily increased after Elasticsearch returned 19 "too many request" and/or "execute [inline] script" error(s). [2024-10-23T15:36:06.268-04:00][WARN ][plugins.taskManager] Capacity configuration is temporarily reduced after Elasticsearch returned 19 "too many request" and/or "execute [inline] script" error(s). ``` --------- Co-authored-by: Elastic Machine <[email protected]> (cherry picked from commit 043e18b)
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