morningman commented on a change in pull request #3143: Non blocking
OlapTableSink
URL: https://github.com/apache/incubator-doris/pull/3143#discussion_r398612691
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File path: be/src/exec/tablet_sink.cpp
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@@ -186,80 +267,89 @@ void NodeChannel::cancel() {
closure->ref();
closure->cntl.set_timeout_ms(_rpc_timeout_ms);
- _stub->tablet_writer_cancel(&closure->cntl,
- &request,
- &closure->result,
- closure);
+ _stub->tablet_writer_cancel(&closure->cntl, &request, &closure->result,
closure);
request.release_id();
- // reset batch
- _batch.reset();
+ // Beware of the destruct sequence. RowBatches will use
mem_trackers(include ancestors).
+ // Delete RowBatches here is a better choice to reduce the potential of
dtor errors.
+ {
+ std::lock_guard<std::mutex> lg(_pending_batches_lock);
+ std::queue<AddBatchReq> empty;
+ std::swap(_pending_batches, empty);
+ _cur_batch.reset();
+ }
}
-Status NodeChannel::_wait_in_flight_packet() {
- if (!_has_in_flight_packet) {
- return Status::OK();
+int NodeChannel::try_send_and_fetch_status() {
Review comment:
Why not using bool as return value?
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