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https://issues.apache.org/jira/browse/KYLIN-5238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17599870#comment-17599870
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ASF GitHub Bot commented on KYLIN-5238:
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zhaoliu17 opened a new pull request, #1966:
URL: https://github.com/apache/kylin/pull/1966
## Proposed changes
我认为在 kylin4 的StorageCleanupJob 中增加对无引用的 cube_stataistics 数据清理是有意义的：
1. 可以降低无用数据占用的存储空间，同时避免过多无用小文件对nn的压力
2. 默认情况下清理无引用的 cube_stataistics 数据，但可以通过 -cleanupCubeStatistics false 禁用
## Branch to commit
- [ ] Branch **kylin3** for v2.x to v3.x
- [ ] Branch **kylin4** for v4.x
- [ ] Branch **kylin5** for v5.x
## Types of changes
What types of changes does your code introduce to Kylin?
_Put an `x` in the boxes that apply_
- [ ] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Documentation Update (if none of the other choices apply)
## Checklist
_Put an `x` in the boxes that apply. You can also fill these out after
creating the PR. If you're unsure about any of them, don't hesitate to ask.
We're here to help! This is simply a reminder of what we are going to look for
before merging your code._
- [ ] I have created an issue on [Kylin's
jira](https://issues.apache.org/jira/browse/KYLIN), and have described the
bug/feature there in detail
- [ ] Commit messages in my PR start with the related jira ID, like
"KYLIN-0000 Make Kylin project open-source"
- [ ] Compiling and unit tests pass locally with my changes
- [ ] I have added tests that prove my fix is effective or that my feature
works
- [ ] I have added necessary documentation (if appropriate)
- [ ] Any dependent changes have been merged
## Further comments
If this is a relatively large or complex change, kick off the discussion at
u...@kylin.apache.org or d...@kylin.apache.org by explaining why you chose the
solution you did and what alternatives you considered, etc...
> StorageCleanupJob add cleanup cube_statistics
> ---------------------------------------------
>
> Key: KYLIN-5238
> URL: https://issues.apache.org/jira/browse/KYLIN-5238
> Project: Kylin
> Issue Type: Improvement
> Components: Tools, Build and Test
> Affects Versions: v4.0.1
> Reporter: zhaoliu
> Priority: Minor
>
> 在 StorageCleanupJob 中增加对 cube_statistics 数据的清理
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