CI founds [1]:
WARNING: ThreadSanitizer: data race (pid=99)
Write of size 8 at 0x7b14002192b0 by thread T27:
12 std::__1::map<>
13 DB::OpenedFileCache::~OpenedFileCache() obj-x86_64-linux-gnu/../src/IO/OpenedFileCache.h:27:7 (clickhouse+0xac66de6)
14 cxa_at_exit_wrapper(void*) crtstuff.c (clickhouse+0xaa3646f)
15 decltype(*(std::__1::forward<nuraft::raft_server*&>(fp0)).*fp()) std::__1::__invoke<void ()(), nuraft::raft_server*&, void>()
Previous read of size 8 at 0x7b14002192b0 by thread T37 (mutexes: write M732116415018761216):
4 DB::OpenedFileCache::get() obj-x86_64-linux-gnu/../src/IO/OpenedFileCache.h:47:37 (clickhouse+0xac66784)
Thread T27 'nuraft_commit' (tid=193, running) created by main thread at:
...
Thread T37 'MergeMutate' (tid=204, running) created by main thread at:
...
But it also reports that the mutex was already destroyed:
Mutex M732116415018761216 is already destroyed.
The problem is that [nuraft can call `exit()`](1707a7572a/src/handle_commit.cxx (L157-L158)) which will call atexit handlers:
2022.02.17 22:54:03.495450 [ 193 ] {} <Error> RaftInstance: background committing thread encounter err Memory limit (total) exceeded: would use 56.56 GiB (attempt to allocate chunk of 8192 bytes), maximum: 55.82 GiB, exiting to protect the system
[1]: https://s3.amazonaws.com/clickhouse-test-reports/33057/5a8cf3ac98808dadf125068a33ed9c622998a484/fuzzer_astfuzzertsan,actions//report.html
Let's replace exit() with abort() to avoid this.
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
