BePPPower opened a new pull request, #12239:
URL: https://github.com/apache/doris/pull/12239
# Proposed changes
Issue Number: close #xxx
## Problem summary
At now, the http interface `executeSQL` is executing in a synchronous
manner, it will store all ResultSets read from jdbc.This may cause OOM
exception with this method.The current solution is to limit ResultSets rows in
fe to avoid `OOM`.
I use `JSONWriter` of gson and `PrintWriter` of HttpServletResponse to
implement streaming response. We use jdbc to read ResultSets in streaming
manner and response client in streaming manner too.
## 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
- [x] No
- [ ] 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
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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