deardeng opened a new pull request, #58962:
URL: https://github.com/apache/doris/pull/58962
### What problem does this PR solve?
Currently, when performing tablet warm-up balancing in the cloud, the
sequential execution of a single warm-up task leads to a series of problems,
such as:
1. When scaling up a computer group to include beta nodes, with a large
number of tables (millions of tablets), actual tests showed that scaling from 1
beta node to 10 beta nodes took more than 6 hours to reach a balanced state.
Each warm-up task RPC took about 30ms. This means that even if a new node can
handle the load, scaling up a new node in the cloud can still take up to 6
hours in the worst case.
2. Due to the same logic, decomission be is also relatively slow.
Fixes:
1. Batch and pipeline warm-up tasks. Each batch can contain multiple warm-up
tasks with the same source and destination (each task represents migrating one
tablet).
2. Separate the warm-up task finish thread to prevent scheduling logic from
affecting the logic that modifies tablet-to-tablet mappings.
3. Asynchronously fetch file cache meta in the warm_up_cache_async logic and
add some bvars.
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [x] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [x] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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