freemandealer opened a new pull request, #12362:
URL: https://github.com/apache/doris/pull/12362
Each NodeChannel has its own queue, with size up to 1/20 exec_mem_limit.
User will crash into OOM if set exec_mem_limit high. This commit uses
fixed number to control the total max memory used by NodeChannels.
Signed-off-by: freemandealer <freeman.zhang1...@gmail.com>
# Proposed changes
Issue Number: close #12359
## Problem summary
FIx OOM caused by pending queues
## Checklist(Required)
1. Does it affect the original behavior:
- [x] Yes
- [ ] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [ ] No
- [x] No Need
3. Has document been added or modified:
- [ ] Yes
- [ ] No
- [x] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [x] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [x] No
## Further comments
performance test result:
Before:
streamload 100 concurrent job | 13~27s finish time | 14.2% memory
consumption
s3load 100 concurrent job | 4~9min | 55%
After:
streamload 100 concurrent job | 5~20s | 21% memory consumption
s3load 100 concurrent job | 5~7m30s | 40%
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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