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GH-44526: [C++][Acero] Fix crash when thread in asof_join is not running #44584

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GH-44526: [C++][Acero] Fix crash when thread in asof_join is not running #44584

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a6a9495
Check if process_thread_ is running before attempting to join
mroz45 Oct 30, 2024
e858e4f
Fixed format
mroz45 Oct 30, 2024
8572038
Test with invalid plan
mroz45 Oct 31, 2024
bf5b9e5
Lint
mroz45 Nov 6, 2024
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4 changes: 3 additions & 1 deletion cpp/src/arrow/acero/asof_join_node.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1136,7 +1136,9 @@ class AsofJoinNode : public ExecNode {
virtual ~AsofJoinNode() {
#ifdef ARROW_ENABLE_THREADING
PushProcess(false);
process_thread_.join();
if (process_thread_.joinable()) {
process_thread_.join();
}
#endif
}

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32 changes: 32 additions & 0 deletions cpp/src/arrow/acero/asof_join_node_test.cc
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Expand Up @@ -1732,5 +1732,37 @@ TEST(AsofJoinTest, RhsEmptinessRaceEmptyBy) {
AssertExecBatchesEqualIgnoringOrder(result.schema, {exp_batch}, result.batches);
}

// Reproduction of GH-44526: Provoke destruction of not started asofjoin node by providing
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// a sink that fails on creation
TEST(AsofJoinTest, DetroyNotStartedAsofJoinNode) {
auto left_batch = ExecBatchFromJSON({int64()}, R"([[1], [2], [3]])");
auto right_batch =
ExecBatchFromJSON({utf8(), int64()}, R"([["Z", 2], ["B", 3], ["A", 4]])");

Declaration left{"exec_batch_source",
ExecBatchSourceNodeOptions(schema({field("on", int64())}),
{std::move(left_batch)})};
Declaration right{
"exec_batch_source",
ExecBatchSourceNodeOptions(schema({field("colVals", utf8()), field("on", int64())}),
{std::move(right_batch)})};
AsofJoinNodeOptions asof_join_opts({{{"on"}, {}}, {{"on"}, {}}}, 1);
Declaration asof_join{
"asofjoin", {std::move(left), std::move(right)}, std::move(asof_join_opts)};

// Setting invalid arguments, such as nullptr in generator or schema in SinkNodeOptions,
// causes the execution plan to terminate before the asofjoin node is started.
arrow::acero::SinkNodeOptions sink_node_options{/*generator=*/nullptr,
/*schema=*/nullptr};
arrow::acero::Declaration sink =
arrow::acero::Declaration::Sequence({asof_join, {"sink", sink_node_options}});

EXPECT_RAISES_WITH_MESSAGE_THAT(
Invalid,
::testing::HasSubstr(
"`generator` is a required SinkNode option and cannot be null"),
DeclarationToStatus(std::move(sink)));
}
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} // namespace acero
} // namespace arrow
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