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context","message":"Address possible data races in ActiveStream context\n\nWARNING: ThreadSanitizer: data race (pid\u003d27028)\n\n  Read of size 8 at 0x7d480000b1f8 by main thread (mutexes: write M32941632, write M1367, write M32940809):\n    #0 void STATWRITER_NAMESPACE::add_casted_stat\u003cunsigned long\u003e(char const*, unsigned long const\u0026, void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/abhinav/couchbase/ep-engine/src/statwriter.h:45 (ep.so+0x000000037825)\n    #1 ActiveStream::addStats(void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/abhinav/couchbase/ep-engine/src/dcp/stream.cc:477 (ep.so+0x000000071d16)\n    #2 DcpProducer::addStats(void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/abhinav/couchbase/ep-engine/src/dcp/producer.cc:602 (ep.so+0x000000068057)\n    #3 ConnStatBuilder::operator()(SingleThreadedRCPtr\u003cConnHandler\u003e\u0026) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:3887 (ep.so+0x0000000e13e1)\n    #4 EventuallyPersistentEngine::doDcpStats(void const*, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:4144 (ep.so+0x0000000c151a)\n    #5 EventuallyPersistentEngine::getStats(void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:4564 (ep.so+0x0000000c5405)\n    #6 EvpGetStats(engine_interface*, void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:213 (ep.so+0x0000000b422e)\n    #7 mock_get_stats(engine_interface*, void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/memcached/programs/engine_testapp/engine_testapp.cc:239 (engine_testapp+0x0000000ba9ad)\n    #8 get_int_stat(engine_interface*, engine_interface_v1*, char const*, char const*) /home/abhinav/couchbase/ep-engine/tests/ep_test_apis.cc:990 (ep_testsuite.so+0x0000000aeb81)\n    #9 dcp_stream(engine_interface*, engine_interface_v1*, char const*, void const*, unsigned short, unsigned int, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, int, int, int, int, bool, bool, unsigned char, bool, unsigned long*, bool) /home/abhinav/couchbase/ep-engine/tests/ep_testsuite.cc:4090 (ep_testsuite.so+0x00000009790c)\n    #10 test_dcp_producer_stream_req_dgm(engine_interface*, engine_interface_v1*) /home/abhinav/couchbase/ep-engine/tests/ep_testsuite.cc:4564 (ep_testsuite.so+0x000000077604)\n    #11 execute_test(test, char const*, char const*) /home/abhinav/couchbase/memcached/programs/engine_testapp/engine_testapp.cc:1090 (engine_testapp+0x0000000b946c)\n    #12 __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287 (libc.so.6+0x000000021ec4)\n\n  Previous write of size 8 at 0x7d480000b1f8 by thread T9 (mutexes: write M32940880, write M32940855):\n    #0 ActiveStream::backfillReceived(Item*, backfill_source_t) /home/abhinav/couchbase/ep-engine/src/dcp/stream.cc:287 (ep.so+0x00000007054e)\n    #1 DiskCallback::callback(GetValue\u0026) /home/abhinav/couchbase/ep-engine/src/dcp/backfill.cc:94 (ep.so+0x000000056067)\n    #2 CouchKVStore::recordDbDump(_db*, _docinfo*, void*) /home/abhinav/couchbase/ep-engine/src/couch-kvstore/couch-kvstore.cc:1757 (ep.so+0x00000018103f)\n    #3 recordDbDumpC(_db*, _docinfo*, void*) /home/abhinav/couchbase/ep-engine/src/couch-kvstore/couch-kvstore.cc:66 (ep.so+0x00000017fcc5)\n    #4 lookup_callback(couchfile_lookup_request*, _sized_buf const*, _sized_buf const*) /home/abhinav/couchbase/couchstore/src/couch_db.cc:767 (libcouchstore.so+0x00000000d7f5)\n    #5 btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) /home/abhinav/couchbase/couchstore/src/btree_read.cc:99 (libcouchstore.so+0x00000000b5b2)\n    #6 btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) /home/abhinav/couchbase/couchstore/src/btree_read.cc:69 (libcouchstore.so+0x00000000b370)\n    #7 btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) /home/abhinav/couchbase/couchstore/src/btree_read.cc:69 (libcouchstore.so+0x00000000b370)\n    #8 btree_lookup /home/abhinav/couchbase/couchstore/src/btree_read.cc:131 (libcouchstore.so+0x00000000b00c)\n    #9 couchstore_changes_since /home/abhinav/couchbase/couchstore/src/couch_db.cc:812 (libcouchstore.so+0x00000000d601)\n    #10 CouchKVStore::scan(ScanContext*) /home/abhinav/couchbase/ep-engine/src/couch-kvstore/couch-kvstore.cc:1264 (ep.so+0x00000017f77e)\n    #11 DCPBackfill::scan() /home/abhinav/couchbase/ep-engine/src/dcp/backfill.cc:193 (ep.so+0x000000057672)\n    #12 DCPBackfill::run() /home/abhinav/couchbase/ep-engine/src/dcp/backfill.cc:118 (ep.so+0x000000056647)\n    #13 BackfillManager::backfill() /home/abhinav/couchbase/ep-engine/src/dcp/backfill-manager.cc:240 (ep.so+0x0000000508d5)\n    #14 BackfillManagerTask::run() /home/abhinav/couchbase/ep-engine/src/dcp/backfill-manager.cc:43 (ep.so+0x00000005052f)\n    #15 ExecutorThread::run() /home/abhinav/couchbase/ep-engine/src/executorthread.cc:112 (ep.so+0x0000000f8796)\n    #16 launch_executor_thread(void*) /home/abhinav/couchbase/ep-engine/src/executorthread.cc:33 (ep.so+0x0000000f8335)\n    #17 platform_thread_wrap /home/abhinav/couchbase/platform/src/cb_pthreads.c:23 (libplatform.so.0.1.0+0x000000003d31)\n\nChange-Id: I166917524b5fcad285b3623ff160e875c316d983\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"9944cf9dc74e67bec6ed267622668a1547498785","is_merged_in_target_branch":false,"change_id":"I2c5024afde6cb749aad901572bfd68734f6d7d5d","change_number":55780,"patch_set_number":1,"change_status":"MERGED"}],"branch":"refs/heads/master"},"4bfdc4f4e2d050c1458842ebded85ec4acb42467":{"kind":"NO_CODE_CHANGE","_number":2,"created":"2015-10-06 00:18:44.000000000","uploader":{"_account_id":1000097,"name":"Chiyoung Seo","email":"chiyoung@northscale.com","username":"chiyoung","avatars":[{"url":"https://www.gravatar.com/avatar/ec517f4126dd292151b452ce4d1edf31.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/ec517f4126dd292151b452ce4d1edf31.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/ec517f4126dd292151b452ce4d1edf31.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/ec517f4126dd292151b452ce4d1edf31.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/81/55781/2","fetch":{"anonymous http":{"url":"https://review.couchbase.org/ep-engine","ref":"refs/changes/81/55781/2","commands":{"Branch":"git fetch https://review.couchbase.org/ep-engine refs/changes/81/55781/2 \u0026\u0026 git checkout -b change-55781 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/ep-engine refs/changes/81/55781/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/ep-engine refs/changes/81/55781/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/ep-engine refs/changes/81/55781/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/ep-engine refs/changes/81/55781/2","Reset To":"git fetch https://review.couchbase.org/ep-engine refs/changes/81/55781/2 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"6db8d9bbcf568ab1f830df3e637640a2241077e0","subject":"Address possible data race in ConnHandler: lastWalkTime"}],"author":{"name":"abhinavdangeti","email":"abhinav@couchbase.com","date":"2015-10-05 22:22:48.000000000","tz":-420},"committer":{"name":"Chiyoung Seo","email":"chiyoung@couchbase.com","date":"2015-10-06 00:18:44.000000000","tz":0},"subject":"Address possible data races in ActiveStream context","message":"Address possible data races in ActiveStream context\n\nWARNING: ThreadSanitizer: data race (pid\u003d27028)\n\n  Read of size 8 at 0x7d480000b1f8 by main thread (mutexes: write M32941632, write M1367, write M32940809):\n    #0 void STATWRITER_NAMESPACE::add_casted_stat\u003cunsigned long\u003e(char const*, unsigned long const\u0026, void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/abhinav/couchbase/ep-engine/src/statwriter.h:45 (ep.so+0x000000037825)\n    #1 ActiveStream::addStats(void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/abhinav/couchbase/ep-engine/src/dcp/stream.cc:477 (ep.so+0x000000071d16)\n    #2 DcpProducer::addStats(void (*)(char const*, unsigned short, char const*, unsigned int, void const*), void const*) /home/abhinav/couchbase/ep-engine/src/dcp/producer.cc:602 (ep.so+0x000000068057)\n    #3 ConnStatBuilder::operator()(SingleThreadedRCPtr\u003cConnHandler\u003e\u0026) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:3887 (ep.so+0x0000000e13e1)\n    #4 EventuallyPersistentEngine::doDcpStats(void const*, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:4144 (ep.so+0x0000000c151a)\n    #5 EventuallyPersistentEngine::getStats(void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:4564 (ep.so+0x0000000c5405)\n    #6 EvpGetStats(engine_interface*, void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:213 (ep.so+0x0000000b422e)\n    #7 mock_get_stats(engine_interface*, void const*, char const*, int, void (*)(char const*, unsigned short, char const*, unsigned int, void const*)) /home/abhinav/couchbase/memcached/programs/engine_testapp/engine_testapp.cc:239 (engine_testapp+0x0000000ba9ad)\n    #8 get_int_stat(engine_interface*, engine_interface_v1*, char const*, char const*) /home/abhinav/couchbase/ep-engine/tests/ep_test_apis.cc:990 (ep_testsuite.so+0x0000000aeb81)\n    #9 dcp_stream(engine_interface*, engine_interface_v1*, char const*, void const*, unsigned short, unsigned int, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, int, int, int, int, bool, bool, unsigned char, bool, unsigned long*, bool) /home/abhinav/couchbase/ep-engine/tests/ep_testsuite.cc:4090 (ep_testsuite.so+0x00000009790c)\n    #10 test_dcp_producer_stream_req_dgm(engine_interface*, engine_interface_v1*) /home/abhinav/couchbase/ep-engine/tests/ep_testsuite.cc:4564 (ep_testsuite.so+0x000000077604)\n    #11 execute_test(test, char const*, char const*) /home/abhinav/couchbase/memcached/programs/engine_testapp/engine_testapp.cc:1090 (engine_testapp+0x0000000b946c)\n    #12 __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287 (libc.so.6+0x000000021ec4)\n\n  Previous write of size 8 at 0x7d480000b1f8 by thread T9 (mutexes: write M32940880, write M32940855):\n    #0 ActiveStream::backfillReceived(Item*, backfill_source_t) /home/abhinav/couchbase/ep-engine/src/dcp/stream.cc:287 (ep.so+0x00000007054e)\n    #1 DiskCallback::callback(GetValue\u0026) /home/abhinav/couchbase/ep-engine/src/dcp/backfill.cc:94 (ep.so+0x000000056067)\n    #2 CouchKVStore::recordDbDump(_db*, _docinfo*, void*) /home/abhinav/couchbase/ep-engine/src/couch-kvstore/couch-kvstore.cc:1757 (ep.so+0x00000018103f)\n    #3 recordDbDumpC(_db*, _docinfo*, void*) /home/abhinav/couchbase/ep-engine/src/couch-kvstore/couch-kvstore.cc:66 (ep.so+0x00000017fcc5)\n    #4 lookup_callback(couchfile_lookup_request*, _sized_buf const*, _sized_buf const*) /home/abhinav/couchbase/couchstore/src/couch_db.cc:767 (libcouchstore.so+0x00000000d7f5)\n    #5 btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) /home/abhinav/couchbase/couchstore/src/btree_read.cc:99 (libcouchstore.so+0x00000000b5b2)\n    #6 btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) /home/abhinav/couchbase/couchstore/src/btree_read.cc:69 (libcouchstore.so+0x00000000b370)\n    #7 btree_lookup_inner(couchfile_lookup_request*, unsigned long, int, int) /home/abhinav/couchbase/couchstore/src/btree_read.cc:69 (libcouchstore.so+0x00000000b370)\n    #8 btree_lookup /home/abhinav/couchbase/couchstore/src/btree_read.cc:131 (libcouchstore.so+0x00000000b00c)\n    #9 couchstore_changes_since /home/abhinav/couchbase/couchstore/src/couch_db.cc:812 (libcouchstore.so+0x00000000d601)\n    #10 CouchKVStore::scan(ScanContext*) /home/abhinav/couchbase/ep-engine/src/couch-kvstore/couch-kvstore.cc:1264 (ep.so+0x00000017f77e)\n    #11 DCPBackfill::scan() /home/abhinav/couchbase/ep-engine/src/dcp/backfill.cc:193 (ep.so+0x000000057672)\n    #12 DCPBackfill::run() /home/abhinav/couchbase/ep-engine/src/dcp/backfill.cc:118 (ep.so+0x000000056647)\n    #13 BackfillManager::backfill() /home/abhinav/couchbase/ep-engine/src/dcp/backfill-manager.cc:240 (ep.so+0x0000000508d5)\n    #14 BackfillManagerTask::run() /home/abhinav/couchbase/ep-engine/src/dcp/backfill-manager.cc:43 (ep.so+0x00000005052f)\n    #15 ExecutorThread::run() /home/abhinav/couchbase/ep-engine/src/executorthread.cc:112 (ep.so+0x0000000f8796)\n    #16 launch_executor_thread(void*) /home/abhinav/couchbase/ep-engine/src/executorthread.cc:33 (ep.so+0x0000000f8335)\n    #17 platform_thread_wrap /home/abhinav/couchbase/platform/src/cb_pthreads.c:23 (libplatform.so.0.1.0+0x000000003d31)\n\nChange-Id: I166917524b5fcad285b3623ff160e875c316d983\nReviewed-on: http://review.couchbase.org/55781\nTested-by: buildbot \u003cbuild@couchbase.com\u003e\nReviewed-by: Chiyoung Seo \u003cchiyoung@couchbase.com\u003e\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"6db8d9bbcf568ab1f830df3e637640a2241077e0","is_merged_in_target_branch":true,"change_id":"I2c5024afde6cb749aad901572bfd68734f6d7d5d","change_number":55780,"patch_set_number":2,"change_status":"MERGED"}],"branch":"refs/heads/master"}},"requirements":[],"submit_records":[],"submit_requirements":[]}