Thread 34 (Thread 0x7f319dbff700 (LWP 15420)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f31a06413ea in background_thread_entry () from /opt/couchbase/bin/../lib/libjemalloc.so.2
#2  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#3  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x7f319d17e700 (LWP 15421)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f31a21a0e7d in spdlog::details::thread_pool::process_next_msg_() () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#2  0x00007f31a21a13d0 in spdlog::details::thread_pool::worker_loop_() () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#3  0x00007f319f329dcf in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6
#4  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x7f319c97d700 (LWP 15422)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f31a2199d41 in cb::logger::unregisterSpdLogger(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#4  0x00007f3199fd634b in std::_Sp_counted_ptr<BucketLogger*, (__gnu_cxx::_Lock_policy)2>::_M_dispose() () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f31a219fb81 in spdlog::details::registry::flush_all() () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#6  0x00007f31a21a0405 in _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN6spdlog7details15periodic_workerC4ERKSt8functionIFvvEENSt6chrono8durationIlSt5ratioILl1ELl1EEEEEUlvE_EEEEE6_M_runEv () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#7  0x00007f319f329dcf in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6
#8  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x7f319c17c700 (LWP 15423)):
#0  0x00007f319e861f0d in poll () from /lib64/libc.so.6
#1  0x000000000046f87e in check_stdin_thread(void*) ()
#2  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#3  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7f319b97b700 (LWP 15424)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000495ce0 in ExternalAuthManagerThread::run() ()
#2  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#3  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7f319b17a700 (LWP 15425)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000004e88b6 in AuditImpl::consume_events() ()
#2  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#3  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7f3195f1a700 (LWP 15426)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a01a15e in DcpConnMap::disconnect(void const*) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a06b16c in EvpHandleDisconnect(void const*, ENGINE_EVENT_TYPE, void const*, void const*) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x0000000000429b7e in perform_callbacks(ENGINE_EVENT_TYPE, void const*, void const*) ()
#6  0x000000000048e1a1 in Connection::close() ()
#7  0x000000000048db7c in Connection::runStateMachinery() ()
#8  0x000000000048dc1b in Connection::runEventLoop(short) ()
#9  0x000000000049a7bc in run_event_loop(Connection*, short) ()
#10 0x000000000042f607 in event_handler(int, short, void*) ()
#11 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#12 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#13 0x000000000046ff59 in worker_libevent(void*) ()
#14 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#15 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#16 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7f3195719700 (LWP 15427)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a019965 in DcpConnMap::newProducer(void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a080af1 in EventuallyPersistentEngine::dcpOpen(void const*, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a080e80 in non-virtual thunk to EventuallyPersistentEngine::open(gsl::not_null<void const*>, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x000000000045ed0a in dcpOpen(Cookie&, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) ()
#7  0x00000000004b8806 in dcp_open_executor(Cookie&) ()
#8  0x00000000004ad2ef in execute_client_request_packet(Cookie&, cb::mcbp::Request const&) ()
#9  0x000000000049b8dc in Cookie::execute() ()
#10 0x00000000004ccf48 in StateMachine::conn_execute() ()
#11 0x000000000048db7c in Connection::runStateMachinery() ()
#12 0x000000000048dc1b in Connection::runEventLoop(short) ()
#13 0x000000000049a7bc in run_event_loop(Connection*, short) ()
#14 0x000000000042f607 in event_handler(int, short, void*) ()
#15 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#16 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#17 0x000000000046ff59 in worker_libevent(void*) ()
#18 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#19 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#20 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7f3194f18700 (LWP 15428)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a0739d0 in EventuallyPersistentEngine::doConnAggStats(void const*, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&, char const*, unsigned long) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a07b138 in EventuallyPersistentEngine::getStats(void const*, char const*, int, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a07c4cd in EventuallyPersistentEngine::get_stats(gsl::not_null<void const*>, cb::const_char_buffer, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x000000000045e4cd in bucket_get_stats(Cookie&, cb::const_char_buffer, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) ()
#7  0x00000000004c4b7e in StatsCommandContext::doStats() ()
#8  0x00000000004c5568 in StatsCommandContext::step() ()
#9  0x00000000004c9690 in SteppableCommandContext::drive() ()
#10 0x00000000004a9080 in stat_executor(Cookie&) ()
#11 0x00000000004ad2ef in execute_client_request_packet(Cookie&, cb::mcbp::Request const&) ()
#12 0x000000000049b8dc in Cookie::execute() ()
#13 0x00000000004ccf48 in StateMachine::conn_execute() ()
#14 0x000000000048db7c in Connection::runStateMachinery() ()
#15 0x000000000048dc1b in Connection::runEventLoop(short) ()
#16 0x000000000049a7bc in run_event_loop(Connection*, short) ()
#17 0x000000000042f607 in event_handler(int, short, void*) ()
#18 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#19 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#20 0x000000000046ff59 in worker_libevent(void*) ()
#21 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#22 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#23 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7f3194717700 (LWP 15429)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f31a21a4e74 in spdlog::register_logger(std::shared_ptr<spdlog::logger>) () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#4  0x00007f31a219a615 in cb::logger::registerSpdLogger(std::shared_ptr<spdlog::logger>) () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#5  0x0000000000437840 in ServerLogApi::register_spdlogger(std::shared_ptr<spdlog::logger>) ()
#6  0x00007f3199fd601d in BucketLogger::createBucketLogger(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#7  0x00007f3199feb75a in ConnHandler::ConnHandler(EventuallyPersistentEngine&, void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#8  0x00007f319a037918 in DcpProducer::DcpProducer(EventuallyPersistentEngine&, void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int, bool) () from /opt/couchbase/bin/../lib/../lib/ep.so
#9  0x00007f319a019bc1 in DcpConnMap::newProducer(void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int) () from /opt/couchbase/bin/../lib/../lib/ep.so
#10 0x00007f319a080af1 in EventuallyPersistentEngine::dcpOpen(void const*, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) () from /opt/couchbase/bin/../lib/../lib/ep.so
#11 0x00007f319a080e80 in non-virtual thunk to EventuallyPersistentEngine::open(gsl::not_null<void const*>, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) () from /opt/couchbase/bin/../lib/../lib/ep.so
#12 0x000000000045ed0a in dcpOpen(Cookie&, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) ()
#13 0x00000000004b8806 in dcp_open_executor(Cookie&) ()
#14 0x00000000004ad2ef in execute_client_request_packet(Cookie&, cb::mcbp::Request const&) ()
#15 0x000000000049b8dc in Cookie::execute() ()
#16 0x00000000004ccf48 in StateMachine::conn_execute() ()
#17 0x000000000048db7c in Connection::runStateMachinery() ()
#18 0x000000000048dc1b in Connection::runEventLoop(short) ()
#19 0x000000000049a7bc in run_event_loop(Connection*, short) ()
#20 0x000000000042f607 in event_handler(int, short, void*) ()
#21 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#22 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#23 0x000000000046ff59 in worker_libevent(void*) ()
#24 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#25 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#26 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f3193f16700 (LWP 15430)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a018129 in DcpConnMap::findByName(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a077fc8 in EventuallyPersistentEngine::doDcpVbTakeoverStats(void const*, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, Vbid) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a07c406 in EventuallyPersistentEngine::getStats(void const*, char const*, int, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f319a07c4cd in EventuallyPersistentEngine::get_stats(gsl::not_null<void const*>, cb::const_char_buffer, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#7  0x000000000045e4cd in bucket_get_stats(Cookie&, cb::const_char_buffer, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) ()
#8  0x00000000004c4b7e in StatsCommandContext::doStats() ()
#9  0x00000000004c5568 in StatsCommandContext::step() ()
#10 0x00000000004c9690 in SteppableCommandContext::drive() ()
#11 0x00000000004a9080 in stat_executor(Cookie&) ()
#12 0x00000000004ad2ef in execute_client_request_packet(Cookie&, cb::mcbp::Request const&) ()
#13 0x000000000049b8dc in Cookie::execute() ()
#14 0x00000000004ccf48 in StateMachine::conn_execute() ()
#15 0x000000000048db7c in Connection::runStateMachinery() ()
#16 0x000000000048dc1b in Connection::runEventLoop(short) ()
#17 0x000000000049a7bc in run_event_loop(Connection*, short) ()
#18 0x000000000042f607 in event_handler(int, short, void*) ()
#19 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#20 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#21 0x000000000046ff59 in worker_libevent(void*) ()
#22 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#23 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#24 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f3193715700 (LWP 15431)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a018129 in DcpConnMap::findByName(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a077fc8 in EventuallyPersistentEngine::doDcpVbTakeoverStats(void const*, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, Vbid) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a07c406 in EventuallyPersistentEngine::getStats(void const*, char const*, int, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f319a07c4cd in EventuallyPersistentEngine::get_stats(gsl::not_null<void const*>, cb::const_char_buffer, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#7  0x000000000045e4cd in bucket_get_stats(Cookie&, cb::const_char_buffer, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) ()
#8  0x00000000004c4b7e in StatsCommandContext::doStats() ()
#9  0x00000000004c5568 in StatsCommandContext::step() ()
#10 0x00000000004c9690 in SteppableCommandContext::drive() ()
#11 0x00000000004a9080 in stat_executor(Cookie&) ()
#12 0x00000000004ad2ef in execute_client_request_packet(Cookie&, cb::mcbp::Request const&) ()
#13 0x000000000049b8dc in Cookie::execute() ()
#14 0x00000000004ccf48 in StateMachine::conn_execute() ()
#15 0x000000000048db7c in Connection::runStateMachinery() ()
#16 0x000000000048dc1b in Connection::runEventLoop(short) ()
#17 0x000000000049a7bc in run_event_loop(Connection*, short) ()
#18 0x000000000042f607 in event_handler(int, short, void*) ()
#19 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#20 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#21 0x000000000046ff59 in worker_libevent(void*) ()
#22 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#23 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#24 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f3192f14700 (LWP 15432)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f31a21a4e74 in spdlog::register_logger(std::shared_ptr<spdlog::logger>) () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#4  0x00007f31a219a615 in cb::logger::registerSpdLogger(std::shared_ptr<spdlog::logger>) () from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
#5  0x0000000000437840 in ServerLogApi::register_spdlogger(std::shared_ptr<spdlog::logger>) ()
#6  0x00007f3199fd601d in BucketLogger::createBucketLogger(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#7  0x00007f3199feb75a in ConnHandler::ConnHandler(EventuallyPersistentEngine&, void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#8  0x00007f319a037918 in DcpProducer::DcpProducer(EventuallyPersistentEngine&, void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int, bool) () from /opt/couchbase/bin/../lib/../lib/ep.so
#9  0x00007f319a019bc1 in DcpConnMap::newProducer(void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int) () from /opt/couchbase/bin/../lib/../lib/ep.so
#10 0x00007f319a080af1 in EventuallyPersistentEngine::dcpOpen(void const*, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) () from /opt/couchbase/bin/../lib/../lib/ep.so
#11 0x00007f319a080e80 in non-virtual thunk to EventuallyPersistentEngine::open(gsl::not_null<void const*>, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) () from /opt/couchbase/bin/../lib/../lib/ep.so
#12 0x000000000045ed0a in dcpOpen(Cookie&, unsigned int, unsigned int, unsigned int, cb::const_char_buffer, cb::const_char_buffer) ()
#13 0x00000000004b8806 in dcp_open_executor(Cookie&) ()
#14 0x00000000004ad2ef in execute_client_request_packet(Cookie&, cb::mcbp::Request const&) ()
#15 0x000000000049b8dc in Cookie::execute() ()
#16 0x00000000004ccf48 in StateMachine::conn_execute() ()
#17 0x000000000048db7c in Connection::runStateMachinery() ()
#18 0x000000000048dc1b in Connection::runEventLoop(short) ()
#19 0x000000000049a7bc in run_event_loop(Connection*, short) ()
#20 0x000000000042f607 in event_handler(int, short, void*) ()
#21 0x00007f31a0401107 in event_process_active_single_queue.isra.26 () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#22 0x00007f31a040167f in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#23 0x000000000046ff59 in worker_libevent(void*) ()
#24 0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#25 0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#26 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f3192713700 (LWP 15433)):
#0  0x00007f319eb46995 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319f3241bc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/libstdc++.so.6
#2  0x00000000004a29f1 in Executor::run() ()
#3  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#5  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7f3191f12700 (LWP 15434)):
#0  0x00007f319eb46995 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319f3241bc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/libstdc++.so.6
#2  0x00000000004a29f1 in Executor::run() ()
#3  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#5  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f3191711700 (LWP 15435)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x0000000000470b7f in iterate_all_connections(std::function<void (Connection&)>) ()
#4  0x00000000004d936e in CccpNotificationTask::execute() ()
#5  0x00000000004a2abc in Executor::run() ()
#6  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#8  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f3190f10700 (LWP 15436)):
#0  0x00007f319eb46995 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319f3241bc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/libstdc++.so.6
#2  0x00000000004a29f1 in Executor::run() ()
#3  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#5  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f319070f700 (LWP 15437)):
#0  0x00007f319eb46995 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319f3241bc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/libstdc++.so.6
#2  0x00000000004a29f1 in Executor::run() ()
#3  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#5  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f318fc0e700 (LWP 15438)):
#0  0x00007f319eb46995 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319f3241bc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/libstdc++.so.6
#2  0x00000000004a29f1 in Executor::run() ()
#3  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#5  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f318f40d700 (LWP 15439)):
#0  0x00007f319eb46995 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319f3241bc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/libstdc++.so.6
#2  0x00000000004a29f1 in Executor::run() ()
#3  0x00007f31a111f8bf in Couchbase::Thread::thread_entry() () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#4  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#5  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f318c9ff700 (LWP 424)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0d92cf in MemoryTracker::statsThreadMainLoop(void*) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#3  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f314e7ff700 (LWP 425)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6ba5 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f314dffe700 (LWP 426)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6ba5 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f314d7fd700 (LWP 427)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6ba5 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f314cffc700 (LWP 428)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6ba5 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f3147fff700 (LWP 429)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6cc1 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f31477fe700 (LWP 430)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6cc1 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f3146ffd700 (LWP 431)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a0705db in EventuallyPersistentEngine::doDcpStats(void const*, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a07b152 in EventuallyPersistentEngine::getStats(void const*, char const*, int, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0cd813 in KVBucket::snapshotStats() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f319a0f5b3b in StatSnap::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#7  0x00007f319a0a3f50 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#8  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#9  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f31467fc700 (LWP 432)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a0705db in EventuallyPersistentEngine::doDcpStats(void const*, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a07b152 in EventuallyPersistentEngine::getStats(void const*, char const*, int, std::function<void (char const*, unsigned short, char const*, unsigned int, gsl::not_null<void const*>)> const&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0cd813 in KVBucket::snapshotStats() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f319a0f5b3b in StatSnap::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#7  0x00007f319a0a3f50 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#8  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#9  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f3145ffb700 (LWP 433)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6ba5 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f31457fa700 (LWP 434)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a018f18 in DcpConnMap::manageConnections() () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f3199fef5b6 in ConnManager::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3f50 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f3144ff9700 (LWP 435)):
#0  0x00007f319eb4951d in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007f319eb44e1b in _L_lock_812 () from /lib64/libpthread.so.0
#2  0x00007f319eb44ce8 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x00007f319a018f18 in DcpConnMap::manageConnections() () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f3199fef5b6 in ConnManager::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3f50 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f31447f8700 (LWP 436)):
#0  0x00007f319eb46d42 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f319a0f6cc1 in TaskQueue::_doSleep(ExecutorThread&, std::unique_lock<std::mutex>&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#2  0x00007f319a0f857b in TaskQueue::sleepThenFetchNextTask(ExecutorThread&) () from /opt/couchbase/bin/../lib/../lib/ep.so
#3  0x00007f319a09ac07 in ExecutorPool::_nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#4  0x00007f319a09acad in ExecutorPool::nextTask(ExecutorThread&, unsigned char) () from /opt/couchbase/bin/../lib/../lib/ep.so
#5  0x00007f319a0a3d52 in ExecutorThread::run() () from /opt/couchbase/bin/../lib/../lib/ep.so
#6  0x00007f31a1113f27 in platform_thread_wrap(void*) () from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
#7  0x00007f319eb42e25 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f319e86cbad in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f31a27d3000 (LWP 15417)):
#0  0x00007f319e866ec9 in syscall () from /lib64/libc.so.6
#1  0x00007f31a040931a in epoll_wait () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#2  0x00007f31a04097b5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#3  0x00007f31a04014d2 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core.so.2.1.8
#4  0x0000000000431f6a in memcached_main ()
#5  0x00007f319e790445 in __libc_start_main () from /lib64/libc.so.6
#6  0x0000000000428525 in _start ()