17:12:50 WARNING: ThreadSanitizer: data race (pid=129556)
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17:12:50 Read of size 1 at 0x7d580000f708 by thread T13 (mutexes: write M969):
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17:12:50 #0 DcpProducer::addStats(void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/dcp-producer.cc:542 (ep.so+0x00000027f7b0)
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17:12:50 #1 ConnStatBuilder::operator()(SingleThreadedRCPtr<ConnHandler>&) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/ep_engine.cc:3701 (ep.so+0x000000183c44)
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17:12:50 #2 ConnStatBuilder std::for_each<std::_List_iterator<SingleThreadedRCPtr<ConnHandler> >, ConnStatBuilder>(std::_List_iterator<SingleThreadedRCPtr<ConnHandler> >, std::_List_iterator<SingleThreadedRCPtr<ConnHandler> >, ConnStatBuilder) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/bits/stl_algo.h:3755 (ep.so+0x0000001838a5)
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17:12:50 #3 void ConnMap::each_UNLOCKED<ConnStatBuilder>(ConnStatBuilder) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/connmap.h:148 (ep.so+0x000000183808)
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17:12:50 #4 void ConnMap::each<ConnStatBuilder>(ConnStatBuilder) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/connmap.h:140 (ep.so+0x00000017732e)
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17:12:50 #5 EventuallyPersistentEngine::doDcpStats(void const*, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/ep_engine.cc:3954 (ep.so+0x00000014c5ed)
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17:12:50 #6 EventuallyPersistentEngine::getStats(void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/ep_engine.cc:4367 (ep.so+0x000000150f81)
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17:12:50 #7 EventuallyPersistentStore::snapshotStats() /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/ep.cc:1381 (ep.so+0x0000000e0063)
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17:12:50 #8 StatSnap::run() /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/tasks.cc:80 (ep.so+0x000000252643)
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17:12:50 #9 ExecutorThread::run() /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/executorthread.cc:109 (ep.so+0x0000001e3fe1)
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17:12:50 #10 launch_executor_thread(void*) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/executorthread.cc:34 (ep.so+0x0000001e360a)
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17:12:50 #11 platform_thread_wrap /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/platform/src/cb_pthreads.c (libplatform.so.0.1.0+0x00000000377c)
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17:12:50
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17:12:50 Previous write of size 1 at 0x7d580000f708 by main thread:
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17:12:50 #0 DcpProducer::maybeSendNoop(dcp_message_producers*) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/dcp-producer.cc:722 (ep.so+0x00000027d35a)
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17:12:50 #1 DcpProducer::step(dcp_message_producers*) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/dcp-producer.cc:306 (ep.so+0x00000027c410)
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17:12:50 #2 EvpDcpStep(engine_interface*, void const*, dcp_message_producers*) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/src/ep_engine.cc:1404 (ep.so+0x000000138baa)
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17:12:50 #3 mock_dcp_step /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/memcached/programs/engine_testapp/engine_testapp.c (engine_testapp+0x0000004ca2e8)
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17:12:50 #4 test_dcp_noop(engine_interface*, engine_interface_v1*) /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/ep-engine/tests/ep_testsuite.cc:3313 (ep_testsuite.so+0x00000008ce52)
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17:12:50 #5 execute_test /home/couchbase/jenkins/workspace/ep-engine-threadsanitizer-3.0.x/memcached/programs/engine_testapp/engine_testapp.c (engine_testapp+0x0000004c4e9f)
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17:12:50 #6 main crtstuff.c (engine_testapp+0x0000004c2e01)
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Bug
Major
MB-19323 3.1.6 release