Function TEST

be/src/runtime/runtime-state-test.cc:36–62

Regression test for IMPALA-8270: MemTracker teardown order leading to use-after-free from LogUsage.

// Regression test for IMPALA-8270: MemTracker teardown order leading to
// use-after-free from LogUsage.
TEST(RuntimeStateTest, MemTrackerTeardown) {
  const int LOG_USAGE_THREADS = 4;
  const int CONSTRUCT_ITERS = 10;
  TestEnv test_env;
  ASSERT_OK(test_env.Init());
  // Poll LogUsage() from other threads to reproduce race.
  AtomicBool stop_threads(false);
  thread_group log_usage_threads;
  for (int i = 0; i < LOG_USAGE_THREADS; ++i) {
    log_usage_threads.add_thread(new thread([&test_env, &stop_threads]() {
      while (!stop_threads.Load()) {
        string usage = test_env.exec_env()->process_mem_tracker()->LogUsage(100);
      }
    }));
  }

  // Construct and tear down RuntimeState repeatedly to try to reproduce race.
  for (int i = 0; i < CONSTRUCT_ITERS; ++i) {
    TQueryCtx query_ctx;
    unique_ptr<RuntimeState> state(new RuntimeState(query_ctx, test_env.exec_env()));
    ASSERT_TRUE(state->instance_mem_tracker() != nullptr);
    state->ReleaseResources();
    state.reset();
  }
  stop_threads.Store(true);
  log_usage_threads.join_all();
}
}

int main(int argc, char** argv) {