zuochunwei opened a new pull request #7284: URL: https://github.com/apache/incubator-doris/pull/7284
## Proposed changes the tuple String Slot's ptr and len are not assigned appropriately on send side, the receive side will crash. detail description: on send side, when we call RowBatch::serialize(PRowBatch* output_batch) to pack RowBatch, the Tuple::deep_copy will be called, for each String Slot, only String Slots that is not null will set ptr and len with right value on recv side, unpack is processed by RowBatch::RowBatch(const RowDescriptor&, const PRowBatch&...), in this function, each String Slot will transfer offset to valid string_val->ptr, some logic depends string_val->len=0, such as AggregateFuncTraits::init(), HyperLogLog::deserialize() will return if slice.size<=0, so if string_val->len is set to 0 in send side, will ok, otherwise crash. by netcomm viewpoint, we should make sure transfer correct data, and do not make any presume which way the recv side will use it. Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue. ## Types of changes What types of changes does your code introduce to Doris? _Put an `x` in the boxes that apply_ - [ x] Bugfix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) - [ ] Documentation Update (if none of the other choices apply) - [ ] Code refactor (Modify the code structure, format the code, etc...) - [ ] Optimization. Including functional usability improvements and performance improvements. - [ ] Dependency. Such as changes related to third-party components. - [ ] Other. ## Checklist _Put an `x` in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code._ - [ ] I have created an issue on (Fix #ISSUE) and described the bug/feature there in detail - [ ] Compiling and unit tests pass locally with my changes - [ ] I have added tests that prove my fix is effective or that my feature works - [ ] If these changes need document changes, I have updated the document - [ ] Any dependent changes have been merged ## Further comments If this is a relatively large or complex change, kick off the discussion at [email protected] by explaining why you chose the solution you did and what alternatives you considered, etc... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
