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refs/changes/50/114950/1 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/1 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/1 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/50/114950/1","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/1 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"86f4514e2a178fb2c594aafc9f6fa941ab5b5186","subject":"MB-35993: Add synchronization to auditHandle"}],"author":{"name":"Dave Rigby","email":"daver@couchbase.com","date":"2019-09-18 11:36:39.000000000","tz":60},"committer":{"name":"Dave Rigby","email":"daver@couchbase.com","date":"2019-09-18 11:36:43.000000000","tz":60},"subject":"MB-36049: Make VBucket::purge_seqno atomic","message":"MB-36049: Make VBucket::purge_seqno atomic\n\nAs reported by TSan, VBucket::purge_seqno is read and written without\na lock:\n\n  Write of size 8 at 0x7b6800107728 by thread T41:\n    #0 Monotonic::operator\u003d(unsigned long const\u0026) kv_engine/engines/ep/src/monotonic.h:134 (ep.so+0x0000001be09e)\n    #1 VBucket::setPurgeSeqno(unsigned long) kv_engine/engines/ep/src/vbucket.h:218 (ep.so+0x0000001be09e)\n    #2 EphemeralVBucket::purgeStaleItems(std::function) kv_engine/engines/ep/src/ephemeral_vb.cc:350 (ep.so+0x0000001be09e)\n    #3 EphemeralVBucket::StaleItemDeleter::visit(VBucket\u0026) kv_engine/engines/ep/src/ephemeral_tombstone_purger.cc:205 (ep.so+0x0000001b7571)\n    #4 KVBucket::pauseResumeVisit(PauseResumeVBVisitor\u0026, KVBucketIface::Position\u0026) kv_engine/engines/ep/src/kv_bucket.cc:2278 (ep.so+0x000000209a09)\n    #5 EphTombstoneStaleItemDeleter::run() kv_engine/engines/ep/src/ephemeral_tombstone_purger.cc:273 (ep.so+0x0000001b6d59)\n    #6 ExecutorThread::run() kv_engine/engines/ep/src/executorthread.cc:153 (ep.so+0x0000001d0405)\n    #7 launch_executor_thread kv_engine/engines/ep/src/executorthread.cc:34 (ep.so+0x0000001d1345)\n    #8 CouchbaseThread::run() platform/src/cb_pthreads.cc:58 (libplatform_so.so.0.1.0+0x000000009c5f)\n    #9 platform_thread_wrap platform/src/cb_pthreads.cc:71 (libplatform_so.so.0.1.0+0x000000009c5f)\n    #10   (libtsan.so.0+0x000000024feb)\n\n  Previous read of size 8 at 0x7b6800107728 by thread T6 (mutexes: write M1057918717805263064):\n    #0 VBucket::_addStats(bool, std::function)\u003e const\u0026, void const*) kv_engine/engines/ep/src/vbucket.cc:3010 (ep.so+0x0000002796b6)\n    #1 EphemeralVBucket::addStats(bool, std::function)\u003e const\u0026, void const*) kv_engine/engines/ep/src/ephemeral_vb.cc:166 (ep.so+0x0000001b8824)\n    #2 addVBStats kv_engine/engines/ep/src/ep_engine.cc:3155 (ep.so+0x000000183e93)\n    #3 visitBucket kv_engine/engines/ep/src/ep_engine.cc:3127 (ep.so+0x000000183e93)\n    #4 KVBucket::visit(VBucketVisitor\u0026) kv_engine/engines/ep/src/kv_bucket.cc:2254 (ep.so+0x000000209efd)\n    #5 EventuallyPersistentEngine::doVBucketStats(void const*, std::function)\u003e const\u0026, char const*, int, bool, bool) kv_engine/engines/ep/src/ep_engine.cc:3193 (ep.so+0x000000183a7b)\n    ...\n\nFix by changing to an Atomic WeaklyMonotonic type.\n\nChange-Id: I014242268f913d31fdc0964c42f59aa952607ba4\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"86f4514e2a178fb2c594aafc9f6fa941ab5b5186","is_merged_in_target_branch":false,"change_id":"I34966f08674c6363fde4592b5c4bede48747fb2f","change_number":114945,"patch_set_number":1,"change_status":"MERGED"}],"branch":"refs/heads/master"},"894eabd83c7a4aa1be7e3088aaeb97a274010030":{"kind":"REWORK","_number":2,"created":"2019-09-18 14:31:56.000000000","uploader":{"_account_id":1000966,"name":"Dave Rigby","email":"daver@couchbase.com","username":"drigby","avatars":[{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/50/114950/2","fetch":{"anonymous http":{"url":"https://review.couchbase.org/kv_engine","ref":"refs/changes/50/114950/2","commands":{"Branch":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/2 \u0026\u0026 git checkout -b change-114950 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/50/114950/2","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/50/114950/2 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"fb6944d9b8df77691c9249ebba7b1c1be9cd7051","subject":"MB-36051: Make Connection::priority atomic"}],"author":{"name":"Dave Rigby","email":"daver@couchbase.com","date":"2019-09-18 11:36:39.000000000","tz":60},"committer":{"name":"Dave Rigby","email":"daver@couchbase.com","date":"2019-09-18 14:31:56.000000000","tz":0},"subject":"MB-36049: Make VBucket::purge_seqno atomic","message":"MB-36049: Make VBucket::purge_seqno atomic\n\nAs reported by TSan, VBucket::purge_seqno is read and written without\na lock:\n\n  Write of size 8 at 0x7b6800107728 by thread T41:\n    #0 Monotonic::operator\u003d(unsigned long const\u0026) kv_engine/engines/ep/src/monotonic.h:134 (ep.so+0x0000001be09e)\n    #1 VBucket::setPurgeSeqno(unsigned long) kv_engine/engines/ep/src/vbucket.h:218 (ep.so+0x0000001be09e)\n    #2 EphemeralVBucket::purgeStaleItems(std::function) kv_engine/engines/ep/src/ephemeral_vb.cc:350 (ep.so+0x0000001be09e)\n    #3 EphemeralVBucket::StaleItemDeleter::visit(VBucket\u0026) kv_engine/engines/ep/src/ephemeral_tombstone_purger.cc:205 (ep.so+0x0000001b7571)\n    #4 KVBucket::pauseResumeVisit(PauseResumeVBVisitor\u0026, KVBucketIface::Position\u0026) kv_engine/engines/ep/src/kv_bucket.cc:2278 (ep.so+0x000000209a09)\n    #5 EphTombstoneStaleItemDeleter::run() kv_engine/engines/ep/src/ephemeral_tombstone_purger.cc:273 (ep.so+0x0000001b6d59)\n    #6 ExecutorThread::run() kv_engine/engines/ep/src/executorthread.cc:153 (ep.so+0x0000001d0405)\n    #7 launch_executor_thread kv_engine/engines/ep/src/executorthread.cc:34 (ep.so+0x0000001d1345)\n    #8 CouchbaseThread::run() platform/src/cb_pthreads.cc:58 (libplatform_so.so.0.1.0+0x000000009c5f)\n    #9 platform_thread_wrap platform/src/cb_pthreads.cc:71 (libplatform_so.so.0.1.0+0x000000009c5f)\n    #10   (libtsan.so.0+0x000000024feb)\n\n  Previous read of size 8 at 0x7b6800107728 by thread T6 (mutexes: write M1057918717805263064):\n    #0 VBucket::_addStats(bool, std::function)\u003e const\u0026, void const*) kv_engine/engines/ep/src/vbucket.cc:3010 (ep.so+0x0000002796b6)\n    #1 EphemeralVBucket::addStats(bool, std::function)\u003e const\u0026, void const*) kv_engine/engines/ep/src/ephemeral_vb.cc:166 (ep.so+0x0000001b8824)\n    #2 addVBStats kv_engine/engines/ep/src/ep_engine.cc:3155 (ep.so+0x000000183e93)\n    #3 visitBucket kv_engine/engines/ep/src/ep_engine.cc:3127 (ep.so+0x000000183e93)\n    #4 KVBucket::visit(VBucketVisitor\u0026) kv_engine/engines/ep/src/kv_bucket.cc:2254 (ep.so+0x000000209efd)\n    #5 EventuallyPersistentEngine::doVBucketStats(void const*, std::function)\u003e const\u0026, char const*, int, bool, bool) kv_engine/engines/ep/src/ep_engine.cc:3193 (ep.so+0x000000183a7b)\n    ...\n\nFix by changing to an Atomic WeaklyMonotonic type.\n\nChange-Id: I014242268f913d31fdc0964c42f59aa952607ba4\nReviewed-on: http://review.couchbase.org/114950\nReviewed-by: James Harrison \u003cjames.harrison@couchbase.com\u003e\nTested-by: Build Bot \u003cbuild@couchbase.com\u003e\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"fb6944d9b8df77691c9249ebba7b1c1be9cd7051","is_merged_in_target_branch":true,"change_id":"Ia6bae64ec09e1963e55e7cdb614fb17a68ff1726","change_number":114956,"patch_set_number":2,"change_status":"MERGED"}],"branch":"refs/heads/master"}},"requirements":[],"submit_records":[],"submit_requirements":[]}