@ 0x7fadaf07c62f (unknown) @ 0x7fadaee1c36e __pthread_cond_wait @ 0x5630612807e1 std::__1::condition_variable::wait() @ 0x563064aa2651 yb::BackgroundTask::Run() @ 0x5630645934a7 yb::Thread::SuperviseThread() @ 0x7fadaee161c9 start_thread @ 0x7fadaf067952 __GI___clone Total number of threads: 1