slfan1989 opened a new pull request, #9065:
URL: https://github.com/apache/hudi/pull/9065
### Change Logs
JIRA: [HUDI-6451]. Randomly obtain a path in
HoodieMemoryConfig#getDefaultSpillableMapBasePath.
The HoodieMemoryConfig#getDefaultSpillableMapBasePath method retrieves a
path from YARN's LOCAL_DIRS environment variable. However, the order of
LOCAL_DIRS concatenation in YARN is typically fixed, resulting in the
DefaultSpillableMapBasePath being a fixed value. Considering the disk load
perspective, we should randomize the selection of a path from the array.
In typical scenarios, YARN's NodeManager (NM) with five disks, namely
`/nm1/localdir`, `/nm2/localdir`, `/nm3/localdir`, `/nm4/localdir`, and
`/nm5/localdir`, would choose `/nm1/localdir` as the preferred option.
We should randomly choose a disk.
### Impact
The disk selection strategy has been improved to ensure the availability of
multiple disks.
### Risk level (write none, low medium or high below)
none.
### Documentation Update
_Describe any necessary documentation update if there is any new feature,
config, or user-facing change_
- _The config description must be updated if new configs are added or the
default value of the configs are changed_
- _Any new feature or user-facing change requires updating the Hudi website.
Please create a Jira ticket, attach the
ticket number here and follow the
[instruction](https://hudi.apache.org/contribute/developer-setup#website) to
make
changes to the website._
### Contributor's checklist
- [ ] Read through [contributor's
guide](https://hudi.apache.org/contribute/how-to-contribute)
- [ ] Change Logs and Impact were stated clearly
- [ ] Adequate tests were added if applicable
- [ ] CI passed
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