mirror of https://github.com/apache/druid.git
770ad95169
This PR is to measure how long a task stays in the pending queue and emits the value with the metric task/pending/time. The metric is measured in RemoteTaskRunner and HttpRemoteTaskRunner.
An example of the metric:
```
2022-04-26T21:59:09,488 INFO [rtr-pending-tasks-runner-0] org.apache.druid.java.util.emitter.core.LoggingEmitter - {"feed":"metrics","timestamp":"2022-04-26T21:59:09.487Z","service":"druid/coordinator","host":"localhost:8081","version":"2022.02.0-iap-SNAPSHOT","metric":"task/pending/time","value":8,"dataSource":"wikipedia","taskId":"index_parallel_wikipedia_gecpcglg_2022-04-26T21:59:09.432Z","taskType":"index_parallel"}
```
------------------------------------------
Key changed/added classes in this PR
Emit metric task/pending/time in classes RemoteTaskRunner and HttpRemoteTaskRunner.
Update related factory classes and tests.
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| .. | ||
| alerts.md | ||
| api-reference.md | ||
| auth-ldap.md | ||
| basic-cluster-tuning.md | ||
| clean-metadata-store.md | ||
| deep-storage-migration.md | ||
| druid-console.md | ||
| dump-segment.md | ||
| dynamic-config-provider.md | ||
| export-metadata.md | ||
| getting-started.md | ||
| high-availability.md | ||
| http-compression.md | ||
| insert-segment-to-db.md | ||
| kubernetes.md | ||
| management-uis.md | ||
| metadata-migration.md | ||
| metrics.md | ||
| mixed-workloads.md | ||
| other-hadoop.md | ||
| password-provider.md | ||
| pull-deps.md | ||
| request-logging.md | ||
| reset-cluster.md | ||
| rolling-updates.md | ||
| rule-configuration.md | ||
| security-overview.md | ||
| security-user-auth.md | ||
| segment-optimization.md | ||
| single-server.md | ||
| tls-support.md | ||
| use_sbt_to_build_fat_jar.md | ||