superivaj opened a new pull request, #12551:
URL: https://github.com/apache/druid/pull/12551

   <!-- Thanks for trying to help us make Apache Druid be the best it can be! 
Please fill out as much of the following information as is possible (where 
relevant, and remove it when irrelevant) to help make the intention and scope 
of this PR clear in order to ease review. -->
   
   <!-- Please read the doc for contribution 
(https://github.com/apache/druid/blob/master/CONTRIBUTING.md) before making 
this PR. Also, once you open a PR, please _avoid using force pushes and 
rebasing_ since these make it difficult for reviewers to see what you've 
changed in response to their reviews. See [the 'If your pull request shows 
conflicts with master' 
section](https://github.com/apache/druid/blob/master/CONTRIBUTING.md#if-your-pull-request-shows-conflicts-with-master)
 for more details. -->
   
   Fixes 12550
   
   <!-- Replace XXXX with the id of the issue fixed in this PR. Remove this 
section if there is no corresponding issue. Don't reference the issue in the 
title of this pull-request. -->
   
   <!-- If you are a committer, follow the PR action item checklist for 
committers:
   
https://github.com/apache/druid/blob/master/dev/committer-instructions.md#pr-and-issue-action-item-checklist-for-committers.
 -->
   
   ### Description
   
   Configuring a DataSource with an automatic compaction that includes 
maxColumnsToMerge will make the automatic compaction to ignore this field. This 
field is important to reduce and optimize memory usage, particularly for data 
sources with many dimensions.
   
   The bug has been identified on the following classes:
   
   - 
server/src/main/java/org/apache/druid/client/indexing/ClientCompactionTaskQueryTuningConfig.java
   - 
server/src/main/java/org/apache/druid/server/coordinator/UserCompactionTaskQueryTuningConfig.java
   
   Both of these classes are missing the maxColumnsToMerge property.
   
   A fix was implemented to add the missing property to these two classes. The 
fix was tested succesfully in our environment.
   
   <!-- Describe the goal of this PR, what problem are you fixing. If there is 
a corresponding issue (referenced above), it's not necessary to repeat the 
description here, however, you may choose to keep one summary sentence. -->
   
   <!-- Describe your patch: what did you change in code? How did you fix the 
problem? -->
   
   This PR has:
   - [x] been self-reviewed.
   - [ ] added documentation for new or modified features or behaviors.
   - [ ] added Javadocs for most classes and all non-trivial methods. Linked 
related entities via Javadoc links.
   - [ ] added or updated version, license, or notice information in 
[licenses.yaml](https://github.com/apache/druid/blob/master/dev/license.md)
   - [ ] added comments explaining the "why" and the intent of the code 
wherever would not be obvious for an unfamiliar reader.
   - [ ] added unit tests or modified existing tests to cover new code paths, 
ensuring the threshold for [code 
coverage](https://github.com/apache/druid/blob/master/dev/code-review/code-coverage.md)
 is met.
   - [ ] added integration tests.
   - [x] been tested in a test Druid cluster.
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to