Gabriel39 commented on code in PR #41968:
URL: https://github.com/apache/doris/pull/41968#discussion_r1808013816
##########
be/src/pipeline/exec/exchange_sink_operator.cpp:
##########
@@ -106,6 +111,24 @@ Status ExchangeSinkLocalState::init(RuntimeState* state,
LocalSinkStateInfo& inf
return Status::OK();
}
+void ExchangeSinkLocalState::on_channel_finished(InstanceLoId channel_id) {
+ std::lock_guard<std::mutex> lock(_finished_channels_mutex);
+
+ if (_finished_channels.contains(channel_id)) {
+ LOG(WARNING) << "query: " << print_id(_state->query_id())
+ << ", on_channel_finished on already finished channel: "
<< channel_id;
+ return;
+ } else {
+ _finished_channels.emplace(channel_id);
+ if (_working_channels_count.fetch_sub(1) == 1) {
+ set_reach_limit();
+ if (_finish_dependency) {
+ _finish_dependency->set_ready();
Review Comment:
`_finish_dependency` should never block if only local channels remain
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