Dead lock may happens when byconity exit

[ArthurZou]

here is the backtrace：

This is may caused by attempting to destroy a condition variable upon which other threads are currently blocked

[GallifreyY]

hi! @ArthurZou may i know which version are u using? and is there any ways to reproduce the bug or its purely depends on chances? It would help if can send us the error log as well. Thx!

[ArthurZou]

Byconity was built by commit 5cf3911.
this is occasional when program exit.

https://github.com/ByConity/libhdfs3-open/blob/33cc568a560a6d222a5f75aec90c7638b1314a3b/src/client/async_preader/StaticInitialization.cpp
There is a static variable io_context which is a boost::asio::io_context instance. It will be destructed when program exit.
As the backtrace shows, this will come to :pthread_cond_destroy(&cond_) in https://github.com/ClickHouse/boost/blob/c0807e83f2824e8dd67a15b355496a9b784cdcd5/boost/asio/detail/posix_event.hpp eventually。
Accroding to https://linux.die.net/man/3/pthread_cond_destroy，I guess may be this is caused by attempting to destroy a condition variable upon which other threads are currently blocked