BiteTheDDDDt opened a new pull request, #62190:
URL: https://github.com/apache/doris/pull/62190
This pull request improves the robustness of the pipeline dependency task
wake-up logic by enhancing error handling in the `Dependency::set_ready`
method. The main focus is on ensuring that failures during task wake-up do not
leave tasks stuck, and that any unexpected exceptions are handled gracefully to
prevent potential hangs.
**Error handling and robustness improvements:**
* The `Dependency::set_ready` method is now marked as `noexcept` to indicate
it should not throw exceptions.
[[1]](diffhunk://#diff-35b4c339dbfd76aad6528e7f75ca7cc6804341bd8d8e2a45779e7695c71a9023L65-R65)
[[2]](diffhunk://#diff-76c3907a8cf89f34ce95fe64799c25abee3f4c17676ec7923db3210c5dda0f82L125-R125)
* Added comprehensive try/catch blocks around the logic that wakes up
blocked tasks. This ensures:
- Doris-specific exceptions are handled by checking if the task is
finalized; if not, the associated query is cancelled to prevent hangs.
- Standard exceptions (e.g., `std::bad_alloc`) also trigger query
cancellation and are logged.
- Any other unexpected exceptions are caught to prevent further failures,
with a best-effort approach for recovery.
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