[FEATURE] Introduce dynamic disk selection for one partition in LOCALFILE
- Dominant language
- Java
- Stars
- 454
- Forks
- 172
- Avg merge
- 5d 17h
- Merged PRs (30d)
- 5
Description
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
### Search before asking
- [X] I have searched in the [issues](https://github.com/apache/incubator-uniffle/issues?q=is%3Aissue) and found no similar issues.
### Describe the feature
Introduce the dynamic disk selection for one partition in LOCALFILE, especially when some disks reached the high-watermark.
### Motivation
Currently, when mounting multiple disks in shuffle-server and using the MEMORY_LOCALFILE storage type, one app has a very large partition data and its selected disk reaches the high watermark, it will preserve the data into the memory. This will make some app hard to get the memory.
### Describe the solution
Maybe we should let the its partial big partition data store to the another disk.
### Additional context
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
Contributor guide
Research direction
The issue names LOCALFILE, MEMORY_LOCALFILE, shuffle-server disks, and high-watermark handling but no files or tests. Start by tracing disk selection and high-watermark behavior for MEMORY_LOCALFILE; done means a large partition can place partial data on another disk instead of retaining it in memory when the selected disk reaches the watermark.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- backend, distributed-systems
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100