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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2021/12/08 12:34:43 UTC
[GitHub] [druid] huyuanfeng2018 opened a new pull request #12040: Introduce query/long/count metric and add long query identifier to request log
huyuanfeng2018 opened a new pull request #12040:
URL: https://github.com/apache/druid/pull/12040
### Description
When we use druid for various query operations, there may be some query requests that take a long time. These query requests may be some bad query requests. If there are many such requests, it will cause a lot of pressure on druid, so we hope A metric can be added to count the number of occurrences of these query requests, and to mark these requests in the request log. So that we can analyze these queries and can make it a little easier for cluster operators to diagnose query issues better.
This PR adds a new query metric query/long/count that represents the number of long queries during the emission period and request logging will mark if this request is a long query request
This PR has:
- [x] been self-reviewed.
- [x] added documentation for new or modified features or behaviors.
- [x] added Javadocs for most classes and all non-trivial methods. Linked related entities via Javadoc links.
- [x] added unit tests or modified existing tests to cover new code paths, ensuring the threshold for code coverage is met.
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[GitHub] [druid] huyuanfeng2018 closed pull request #12040: Introduce query/long/count metric and add long query identifier to request log
Posted by GitBox <gi...@apache.org>.
huyuanfeng2018 closed pull request #12040:
URL: https://github.com/apache/druid/pull/12040
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