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Percy Camilo Triveño Aucahuasi edited comment on ARROW-17687 at 9/28/22 4:56 AM: --------------------------------------------------------------------------------- I got this [^backtrace.log.cpp]. It seems we are moving the unique_locker and trying to lock some invalid mutex. Also, I was able to get another issue, this time a deadlock using these values: {code:java} constexpr int kNumIters = 1; constexpr int kNumFragments = 10; constexpr int kBatchesPerFragment = 10; constexpr int kNumConcurrentTasks = 2;{code} I'll try to explore more about where we are getting these errors, so far I was able to reduce and reproduce the test issue using these values: {code:java} constexpr int kNumIters = 1; constexpr int kNumFragments = 2; constexpr int kBatchesPerFragment = 1; constexpr int kNumConcurrentTasks = 1;{code} Given that we can use C++ 17 now, I'll try to use the new std::scoped_lock instead of the the other lockers (in the places where it make sense to do so) was (Author: aucahuasi): I got this [^backtrace.log.cpp]. It seems we are moving the unique_locker and trying to lock some invalid mutex. Also, I was able to get another issue, this time a deadlock using these values: constexpr int kNumIters = 1; constexpr int kNumFragments = 10; constexpr int kBatchesPerFragment = 10; constexpr int kNumConcurrentTasks = 2; I'll try to explore more about where we are getting these errors, so far I was able to reduce and reproduce the test issue using these values: constexpr int kNumIters = 1; constexpr int kNumFragments = 2; constexpr int kBatchesPerFragment = 1; constexpr int kNumConcurrentTasks = 1; Given that we can use C++ 17 now, I'll try to use the new std::scoped_lock instead of the the other lockers (in the places where it make sense to do so) > [C++] ScanningStress test is flaky in CI > ---------------------------------------- > > Key: ARROW-17687 > URL: https://issues.apache.org/jira/browse/ARROW-17687 > Project: Apache Arrow > Issue Type: Bug > Components: C++ > Reporter: Weston Pace > Assignee: Percy Camilo Triveño Aucahuasi > Priority: Major > Attachments: backtrace.log.cpp > > > There is at least one nightly failure: > https://github.com/ursacomputing/crossbow/actions/runs/3033965241/jobs/4882574634 -- This message was sent by Atlassian Jira (v8.20.10#820010)