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\paperw11900\paperh16840\margl1440\margr1440\vieww11520\viewh8400\viewkind0
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\pard\pardeftab720\partightenfactor0

\f0\fs28 \cf2 \expnd0\expndtw0\kerning0
\outl0\strokewidth0 \strokec2 172.23.121.123: Stack Trace of first crash - bfce729c-861a-491e-ad986aa5-cde28338.dmp\
Core was generated by `/opt/couchbase/bin/memcached -C /opt/couchbase/var/lib/couchbase/config/memcach'.\
 #0  0x00007f44b46dd387 in raise () from /lib64/libc.so.6\
 #0  0x00007f44b46dd387 in raise () from /lib64/libc.so.6\
 No symbol table info available.\
 #1  0x00007f44b46dea78 in abort () from /lib64/libc.so.6\
 No symbol table info available.\
 #2  0x00007f44b524463c in __gnu_cxx::__verbose_terminate_handler () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/vterminate.cc:95\
         terminating = false\
         t = <optimized out>\
 #3  0x00000000009131ef in backtrace_terminate_handler() ()\
 No symbol table info available.\
 #4  0x00007f44b524f8f6 in __cxxabiv1::__terminate(void (*)()) () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:48\
 No locals.\
 #5  0x00007f44b524f961 in std::terminate () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:58\
 No locals.\
 #6  0x00007f44b524fbf4 in __cxxabiv1::__cxa_throw (obj=<optimized out>, tinfo=0xd61a20 <typeinfo for std::runtime_error>, dest=0x439620 <_ZNSt13runtime_errorD1Ev@plt>) at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_throw.cc:95\
         globals = <optimized out>\
         header = 0x7f441c000d70\
 #7  0x000000000076e6e6 in snapshot_range_t::checkInvariant() const ()\
 No symbol table info available.\
 #8  0x00000000007c5956 in EPBucket::flushVBucket_UNLOCKED(LockedVBucketPtr) ()\
 No symbol table info available.\
 #9  0x00000000007c682f in EPBucket::flushVBucket(Vbid) ()\
 No symbol table info available.\
 #10 0x000000000066dc50 in Flusher::flushVB() ()\
 No symbol table info available.\
 #11 0x000000000066e719 in Flusher::step(GlobalTask*) ()\
 No symbol table info available.\
 #12 0x0000000000670957 in GlobalTask::execute() ()\
 No symbol table info available.\
 #13 0x000000000066baa0 in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::\{lambda()#1\}::operator()() const ()\
 No symbol table info available.\
 #14 0x0000000000976050 in folly::ThreadPoolExecutor::runTask(std::shared_ptr<folly::ThreadPoolExecutor::Thread> const&, folly::ThreadPoolExecutor::Task&&) ()\
 No symbol table info available.\
 #15 0x000000000095dd2a in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 No symbol table info available.\
 #16 0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 No symbol table info available.\
 #17 0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 No symbol table info available.\
 #18 0x00007f44b5278d40 in execute_native_thread_routine () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 No locals.\
 #19 0x00007f44b4a7cea5 in start_thread () from /lib64/libpthread.so.0\
 No symbol table info available.\
 #20 0x00007f44b47a58dd in clone () from /lib64/libc.so.6\
 No symbol table info available.\
\
[Thread debugging using libthread_db enabled]\
 Using host libthread_db library "/lib64/libthread_db.so.1".\
 Loaded symbols for /lib64/libpthread.so.0\
 Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.\
 Loaded symbols for /lib64/libc.so.6\
 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.\
 Loaded symbols for /lib64/ld-linux-x86-64.so.2\
 Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.\
 Loaded symbols for /lib64/librt.so.1\
 0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 To enable execution of this file add\
 	add-auto-load-safe-path /opt/couchbase/lib/libstdc++.so.6.0.28-gdb.py\
 line to your configuration file "/root/.gdbinit".\
 To completely disable this security protection add\
 	set auto-load safe-path /\
 line to your configuration file "/root/.gdbinit".\
 For more information about this security protection see the\
 "Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:\
 	info "(gdb)Auto-loading safe path"\
 \
 Thread 41 (Thread 0x7fbdcd9ff700 (LWP 120180)):\
 #0  0x00007fbdce9afde2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdd04cc5a7 in background_thread_entry ()\
    from /opt/couchbase/bin/../lib/libjemalloc.so.2\
 #2  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #3  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 40 (Thread 0x7fbdccc7e700 (LWP 120181)):\
 #0  0x00007fbdce9afde2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x000000000091f795 in spdlog::details::thread_pool::process_next_msg_() ()\
 #2  0x000000000091fdb0 in spdlog::details::thread_pool::worker_loop_() ()\
 #3  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #4  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #5  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 39 (Thread 0x7fbdcc47d700 (LWP 120182)):\
 #0  0x00007fbdce9afde2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x000000000091ef4b in _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN6spdlog7details15periodic_workerC4ERKSt8functionIFvvEENSt6chrono8durationIlSt5ratioILl1ELl1EEEEEUlvE_EEEEE6_M_runEv ()\
 #2  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #3  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #4  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 38 (Thread 0x7fbdcbc7c700 (LWP 120183)):\
 #0  0x00007fbdce6c9c3d in poll () from /lib64/libc.so.6\
 #1  0x000000000055a6d1 in check_stdin_thread(void*) ()\
 #2  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #3  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #4  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 37 (Thread 0x7fbdcb47b700 (LWP 120184)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x000000000089dd2b in worker_thread ()\
 #2  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #3  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 36 (Thread 0x7fbdcac7a700 (LWP 120185)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x000000000089dd2b in worker_thread ()\
 #2  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #3  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 35 (Thread 0x7fbdca479700 (LWP 120186)):\
 #0  0x00007fbdce6c9c3d in poll () from /lib64/libc.so.6\
 #1  0x0000000000894c98 in master_thread ()\
 #2  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #3  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 34 (Thread 0x7fbdc9c78700 (LWP 120187)):\
 #0  0x00007fbdce9afde2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x000000000058b3c6 in ExternalAuthManagerThread::run() ()\
 #2  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #3  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #4  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #5  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 33 (Thread 0x7fbdc90f7700 (LWP 120188)):\
 #0  0x00007fbdce9afde2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00000000005f96c7 in AuditImpl::consume_events() ()\
 #2  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #3  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #4  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 32 (Thread 0x7fbdc88f6700 (LWP 120189)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 31 (Thread 0x7fbdc3fff700 (LWP 120190)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 30 (Thread 0x7fbdc37fe700 (LWP 120191)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 29 (Thread 0x7fbdc2ffd700 (LWP 120192)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 28 (Thread 0x7fbdc27fc700 (LWP 120193)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 27 (Thread 0x7fbdc1ffb700 (LWP 120194)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 26 (Thread 0x7fbdc17fa700 (LWP 120195)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000055ac5b in worker_libevent(void*) ()\
 #4  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #6  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 25 (Thread 0x7fbdc0ff9700 (LWP 120196)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 24 (Thread 0x7fbdbbfff700 (LWP 120197)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 23 (Thread 0x7fbdbb7fe700 (LWP 120198)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 22 (Thread 0x7fbdbaffd700 (LWP 120199)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 21 (Thread 0x7fbdba7fc700 (LWP 120200)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 20 (Thread 0x7fbdb9ffb700 (LWP 120201)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 19 (Thread 0x7fbdb97fa700 (LWP 120202)):\
 #0  0x00007fbdce9afa35 in pthread_cond_wait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdcf1a28bc in __gthread_cond_wait (__mutex=<optimized out>, \
     __cond=<optimized out>)\
     at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865\
 #2  std::condition_variable::wait (this=<optimized out>, __lock=...)\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/condition_variable.cc:53\
 #3  0x000000000059e2f1 in Executor::run() ()\
 #4  0x00007fbdd11ed143 in Couchbase::Thread::thread_entry() ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #5  0x00007fbdd11dcbe9 in platform_thread_wrap(void*) ()\
    from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0\
 #6  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #7  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 18 (Thread 0x7fbdb67ff700 (LWP 120205)):\
 #0  0x00007fbdce9afde2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()\
    from /lib64/libpthread.so.0\
 #1  0x00007fbdd04cbe51 in background_thread_entry ()\
    from /opt/couchbase/bin/../lib/libjemalloc.so.2\
 #2  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #3  0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 17 (Thread 0x7fbdb5dfe700 (LWP 120206)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 16 (Thread 0x7fbdb55fd700 (LWP 120207)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 15 (Thread 0x7fbdb4dfc700 (LWP 120208)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 14 (Thread 0x7fbd6ffff700 (LWP 120209)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 13 (Thread 0x7fbd6dfd9700 (LWP 120210)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 12 (Thread 0x7fbd6d7d8700 (LWP 120211)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 11 (Thread 0x7fbd6cfd7700 (LWP 120212)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 10 (Thread 0x7fbd5bfff700 (LWP 120213)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 9 (Thread 0x7fbd5b7fe700 (LWP 120214)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965b97 in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 8 (Thread 0x7fbd5affd700 (LWP 120215)):\
 #0  0x00007fbdce9aeee0 in pthread_mutex_unlock () from /lib64/libpthread.so.0\
 #1  0x00000000007ca717 in BloomFilterCallback::callback(Vbid&, DocKey const&, bool&) ()\
 #2  0x0000000000807269 in time_purge_hook(Db*, DocInfo*, sized_buf, CompactionContext*) ()\
 #3  0x00007fbdd205133d in compact_seq_fetchcb(couchfile_lookup_request*, sized_buf const*, sized_buf const*) ()\
    from /opt/couchbase/bin/../lib/libcouchstore.so\
 #4  0x00007fbdd2040c49 in btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) () from /opt/couchbase/bin/../lib/libcouchstore.so\
 #5  0x00007fbdd204094e in btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) () from /opt/couchbase/bin/../lib/libcouchstore.so\
 #6  0x00007fbdd204094e in btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) () from /opt/couchbase/bin/../lib/libcouchstore.so\
 #7  0x00007fbdd20524f9 in cb::couchstore::compact(Db&, char const*, unsigned long, std::function<int (Db&, DocInfo*, sized_buf)>, std::function<int (DocInfo*&, sized_buf)>, FileOpsInterface*, std::function<couchstore_error_t (Db&)>) ()\
    from /opt/couchbase/bin/../lib/libcouchstore.so\
 #8  0x00000000008056c3 in CouchKVStore::compactDBInternal(DbHolder&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_lock<std::mutex>&, CompactionContext*) ()\
 #9  0x00000000008063de in CouchKVStore::compactDB(std::unique_lock<std::mutex>&, std::shared_ptr<CompactionContext>) ()\
 #10 0x00000000007c13ea in EPBucket::compactInternal(LockedVBucketPtr&, CompactionConfig&) ()\
 #11 0x00000000007c1781 in EPBucket::doCompact(Vbid, CompactionConfig&, std::vector<void const*, std::allocator<void const*> >&) ()\
 #12 0x00000000006b8a06 in CompactTask::run() ()\
 #13 0x0000000000670957 in GlobalTask::execute() ()\
 #14 0x000000000066baa0 in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::\{lambda()#1\}::operator()() const ()\
 #15 0x0000000000976050 in folly::ThreadPoolExecutor::runTask(std::shared_ptr<folly::ThreadPoolExecutor::Thread> const&, folly::ThreadPoolExecutor::Task&&) ()\
 #16 0x000000000095dd2a in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #17 0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #18 0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #19 0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #20 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #21 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 7 (Thread 0x7fbd5a7fc700 (LWP 120216)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965b97 in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 6 (Thread 0x7fbd59ffb700 (LWP 120217)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965b97 in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 5 (Thread 0x7fbd597fa700 (LWP 120218)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965a5d in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 4 (Thread 0x7fbd58ff9700 (LWP 120219)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965b97 in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 3 (Thread 0x7fbd37fff700 (LWP 120220)):\
 #0  0x00007fbdce6cebf9 in syscall () from /lib64/libc.so.6\
 #1  0x000000000095872d in folly::detail::futexWaitImpl(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const*, unsigned int) ()\
 #2  0x000000000095fb1a in folly::detail::FutexResult folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::atomic<unsigned int> const*, unsigned int, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, unsigned int) ()\
 #3  0x0000000000965b97 in bool folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&, folly::WaitOptions const&) ()\
 #4  0x00000000009660c6 in bool folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) ()\
 #5  0x0000000000969820 in folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for(std::chrono::duration<long, std::ratio<1l, 1000l> >) ()\
 #6  0x000000000095dcb7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x000000000066a02d in void folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::\{lambda()#1\}>(folly::detail::function::Data&) ()\
 #9  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #10 0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #11 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 2 (Thread 0x7fbd377fe700 (LWP 120221)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000097e3c7 in folly::EventBase::loopBody(int, bool) ()\
 #4  0x000000000097e896 in folly::EventBase::loop() ()\
 #5  0x0000000000980256 in folly::EventBase::loopForever() ()\
 #6  0x000000000096d879 in folly::IOThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) ()\
 #7  0x0000000000979009 in void folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) ()\
 #8  0x00007fbdcf1a7d40 in execute_native_thread_routine ()\
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80\
 #9  0x00007fbdce9abea5 in start_thread () from /lib64/libpthread.so.0\
 #10 0x00007fbdce6d48dd in clone () from /lib64/libc.so.6\
 \
 Thread 1 (Thread 0x7fbdd2684e80 (LWP 120179)):\
 #0  0x00007fbdce6d4eb3 in epoll_wait () from /lib64/libc.so.6\
 #1  0x00007fbdd02933c5 in epoll_dispatch ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #2  0x00007fbdd028a376 in event_base_loop ()\
    from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7\
 #3  0x000000000050b1b6 in memcached_main(int, char**) ()\
 #4  0x00007fbdce5f8555 in __libc_start_main () from /lib64/libc.so.6\
 #5  0x0000000000501341 in _start ()\
 Detaching from program: /opt/couchbase/bin/memcached, process 120179\
 [Inferior 1 (process 120179) detached]\
}