[8.x] Apply task manager backpressure whenever a 500 error is returned in the task store (#198418) #198531
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…he task store (elastic#198418) In this PR, I'm making the task manager apply backpressure whenever a 500 error is returned in the task store (msearch or other SO I/O). ## To verify 1. Apply the following diff, run Kibana and notice logs about poll interval and capacity configuration changing ``` diff --git a/x-pack/plugins/task_manager/server/task_store.ts b/x-pack/plugins/task_manager/server/task_store.ts index 2b3440e87c0..d2ffaa2f50f 100644 --- a/x-pack/plugins/task_manager/server/task_store.ts +++ b/x-pack/plugins/task_manager/server/task_store.ts @@ -574,6 +574,8 @@ export class TaskStore { const versionMap = this.createVersionMap([]); let allTasks = new Array<ConcreteTaskInstance>(); + responses[0].status = 500; + for (const response of responses) { if (response.status !== 200) { const err = new MsearchError(response.status); ``` 2. Undo previous changes, apply the following diff, run Kibana and notice logs about poll interval and capacity configuration changing ``` diff --git a/x-pack/plugins/task_manager/server/task_store.ts b/x-pack/plugins/task_manager/server/task_store.ts index 2b3440e87c0..95d14152e1d 100644 --- a/x-pack/plugins/task_manager/server/task_store.ts +++ b/x-pack/plugins/task_manager/server/task_store.ts @@ -12,6 +12,7 @@ import murmurhash from 'murmurhash'; import { v4 } from 'uuid'; import { Subject } from 'rxjs'; import { omit, defaults, get } from 'lodash'; +import { SavedObjectsErrorHelpers } from '@kbn/core/server'; import { SavedObjectError } from '@kbn/core-saved-objects-common'; import type * as estypes from '@elastic/elasticsearch/lib/api/typesWithBodyKey'; @@ -474,6 +475,7 @@ export class TaskStore { public async bulkGet(ids: string[]): Promise<BulkGetResult> { let result; try { + throw SavedObjectsErrorHelpers.decorateGeneralError(new Error('foo')); result = await this.savedObjectsRepository.bulkGet<SerializedConcreteTaskInstance>( ids.map((id) => ({ type: 'task', id })) ); ``` (cherry picked from commit 424233e)
![github-actions[bot]](https://avatars.githubusercontent.com/in/15368?s=60&v=4){kind=small}
💚 Build Succeeded
Metrics [docs]
cc @mikecote |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Backport
This will backport the following commits from
mainto8.x:Questions ?
Please refer to the Backport tool documentation