WIP Integration of SymbolTable into HeapStatData / ThreadLocalStore #4
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ambuc
commented
Aug 15, 2018
| @@ -190,7 +190,8 @@ ThreadLocalStoreImpl::ScopeImpl::~ScopeImpl() { parent_.releaseScopeCrossThread( | |||
| template <class StatType> | |||
| StatType& ThreadLocalStoreImpl::ScopeImpl::safeMakeStat( | |||
| const std::string& name, | |||
| std::unordered_map<std::string, std::shared_ptr<StatType>>& central_cache_map, | |||
| std::unordered_map<StatNamePtr, std::shared_ptr<StatType>, StatNamePtrHash_, | |||
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std::unordered_set<std::shared_ptr<StatType>>, custom comparator on symbolvec?
ambuc
commented
Aug 15, 2018
| std::unordered_map<std::string, GaugeSharedPtr> gauges_; | ||
| std::unordered_map<std::string, TlsHistogramSharedPtr> histograms_; | ||
| std::unordered_map<std::string, ParentHistogramSharedPtr> parent_histograms_; | ||
| std::unordered_map<StatNamePtr, CounterSharedPtr, StatNamePtrHash_, StatNamePtrCompare_> |
ambuc
pushed a commit
that referenced
this pull request
Nov 2, 2018
…ardown. (envoyproxy#4940) server_fuzz_test indicated the below crash, where the DispatcherImpl teardown releases some upstream client SSL related objects that then needs SecretManagerImpl to unregister. Previously, this was already destructed by time we were in ~DispatcherImpl(), this PR reorders. #0 0xc1e826 in size /usr/local/include/c++/v1/__hash_table:809:55 #1 0xc1e826 in bucket_count /usr/local/include/c++/v1/__hash_table:1197 #2 0xc1e826 in std::__1::__hash_iterator<std::__1::__hash_node<std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, void*>*> std::__1::__hash_table<std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, std::__1::__unordered_map_hasher<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::__unordered_map_equal<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::allocator<std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> > > >::find<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) /usr/local/include/c++/v1/__hash_table:2334 #3 0xc1e278 in unsigned long std::__1::__hash_table<std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, std::__1::__unordered_map_hasher<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::__unordered_map_equal<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> >, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::allocator<std::__1::__hash_value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::weak_ptr<Envoy::Secret::TlsCertificateSdsApi> > > >::__erase_unique<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) /usr/local/include/c++/v1/__hash_table:2510:20 #4 0xc1def6 in erase /usr/local/include/c++/v1/unordered_map:1156:59 #5 0xc1def6 in Envoy::Secret::SecretManagerImpl::DynamicSecretProviders<Envoy::Secret::TlsCertificateSdsApi>::removeDynamicSecretProvider(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) /bazel-out/k8-fastbuild/bin/source/common/secret/_virtual_includes/secret_manager_impl_lib/common/secret/secret_manager_impl.h:75 #6 0x724aa9 in Envoy::Cleanup::~Cleanup() /bazel-out/k8-fastbuild/bin/source/common/common/_virtual_includes/cleanup_lib/common/common/cleanup.h:11:16 #7 0xc1ff33 in Envoy::Secret::SdsApi::~SdsApi() /bazel-out/k8-fastbuild/bin/source/common/secret/_virtual_includes/sds_api_lib/common/secret/sds_api.h:29:7 #8 0xc188a0 in __release_shared /usr/local/include/c++/v1/memory:3530:9 #9 0xc188a0 in __release_shared /usr/local/include/c++/v1/memory:3572 #10 0xc188a0 in std::__1::shared_ptr<Envoy::Secret::SecretProvider<Envoy::Ssl::TlsCertificateConfig> >::~shared_ptr() /usr/local/include/c++/v1/memory:4508 #11 0x149c922 in Envoy::Ssl::ContextConfigImpl::~ContextConfigImpl() /source/common/ssl/context_config_impl.cc:117:1 #12 0x14a0d8f in Envoy::Ssl::ClientContextConfigImpl::~ClientContextConfigImpl() /bazel-out/k8-fastbuild/bin/source/common/ssl/_virtual_includes/context_config_lib/common/ssl/context_config_impl.h:91:7 #13 0x14a0dc8 in Envoy::Ssl::ClientContextConfigImpl::~ClientContextConfigImpl() /bazel-out/k8-fastbuild/bin/source/common/ssl/_virtual_includes/context_config_lib/common/ssl/context_config_impl.h:91:7 #14 0x149815b in operator() /usr/local/include/c++/v1/memory:2325:5 #15 0x149815b in reset /usr/local/include/c++/v1/memory:2638 #16 0x149815b in ~unique_ptr /usr/local/include/c++/v1/memory:2592 #17 0x149815b in Envoy::Ssl::ClientSslSocketFactory::~ClientSslSocketFactory() /bazel-out/k8-fastbuild/bin/source/common/ssl/_virtual_includes/ssl_socket_lib/common/ssl/ssl_socket.h:83 #18 0x14981c8 in Envoy::Ssl::ClientSslSocketFactory::~ClientSslSocketFactory() /bazel-out/k8-fastbuild/bin/source/common/ssl/_virtual_includes/ssl_socket_lib/common/ssl/ssl_socket.h:83:7 #19 0x1362caf in operator() /usr/local/include/c++/v1/memory:2325:5 #20 0x1362caf in reset /usr/local/include/c++/v1/memory:2638 #21 0x1362caf in ~unique_ptr /usr/local/include/c++/v1/memory:2592 #22 0x1362caf in Envoy::Upstream::ClusterInfoImpl::~ClusterInfoImpl() /bazel-out/k8-fastbuild/bin/source/common/upstream/_virtual_includes/upstream_includes/common/upstream/upstream_impl.h:362 #23 0x1362d28 in Envoy::Upstream::ClusterInfoImpl::~ClusterInfoImpl() /bazel-out/k8-fastbuild/bin/source/common/upstream/_virtual_includes/upstream_includes/common/upstream/upstream_impl.h:362:7 #24 0x66e560 in __release_shared /usr/local/include/c++/v1/memory:3530:9 #25 0x66e560 in __release_shared /usr/local/include/c++/v1/memory:3572 #26 0x66e560 in std::__1::shared_ptr<Envoy::Upstream::ClusterInfo const>::~shared_ptr() /usr/local/include/c++/v1/memory:4508 #27 0x13621bf in Envoy::Upstream::HostImpl::~HostImpl() /bazel-out/k8-fastbuild/bin/source/common/upstream/_virtual_includes/upstream_includes/common/upstream/upstream_impl.h:156:7 #28 0x13621f8 in Envoy::Upstream::HostImpl::~HostImpl() /bazel-out/k8-fastbuild/bin/source/common/upstream/_virtual_includes/upstream_includes/common/upstream/upstream_impl.h:156:7 #29 0x66e650 in __release_shared /usr/local/include/c++/v1/memory:3530:9 #30 0x66e650 in __release_shared /usr/local/include/c++/v1/memory:3572 #31 0x66e650 in std::__1::shared_ptr<Envoy::Upstream::HostDescription const>::~shared_ptr() /usr/local/include/c++/v1/memory:4508 #32 0x13b20c3 in Envoy::Http::CodecClient::~CodecClient() /source/common/http/codec_client.cc:38:30 #33 0x13b2258 in Envoy::Http::CodecClientProd::~CodecClientProd() /bazel-out/k8-fastbuild/bin/source/common/http/_virtual_includes/codec_client_lib/common/http/codec_client.h:229:7 #34 0x751de6 in operator() /usr/local/include/c++/v1/memory:2325:5 #35 0x751de6 in reset /usr/local/include/c++/v1/memory:2638 #36 0x751de6 in ~unique_ptr /usr/local/include/c++/v1/memory:2592 #37 0x751de6 in destroy /usr/local/include/c++/v1/memory:1867 #38 0x751de6 in __destroy<std::__1::unique_ptr<Envoy::Event::DeferredDeletable, std::__1::default_delete<Envoy::Event::DeferredDeletable> > > /usr/local/include/c++/v1/memory:1729 #39 0x751de6 in destroy<std::__1::unique_ptr<Envoy::Event::DeferredDeletable, std::__1::default_delete<Envoy::Event::DeferredDeletable> > > /usr/local/include/c++/v1/memory:1597 #40 0x751de6 in __destruct_at_end /usr/local/include/c++/v1/vector:422 #41 0x751de6 in clear /usr/local/include/c++/v1/vector:365 #42 0x751de6 in std::__1::__vector_base<std::__1::unique_ptr<Envoy::Event::DeferredDeletable, std::__1::default_delete<Envoy::Event::DeferredDeletable> >, std::__1::allocator<std::__1::unique_ptr<Envoy::Event::DeferredDeletable, std::__1::default_delete<Envoy::Event::DeferredDeletable> > > >::~__vector_base() /usr/local/include/c++/v1/vector:459 #43 0x74d1aa in ~vector /usr/local/include/c++/v1/vector:551:5 #44 0x74d1aa in Envoy::Event::DispatcherImpl::~DispatcherImpl() /source/common/event/dispatcher_impl.cc:41 #45 0x74d658 in Envoy::Event::DispatcherImpl::~DispatcherImpl() /source/common/event/dispatcher_impl.cc:41:35 #46 0x697b76 in operator() /usr/local/include/c++/v1/memory:2325:5 #47 0x697b76 in reset /usr/local/include/c++/v1/memory:2638 #48 0x697b76 in ~unique_ptr /usr/local/include/c++/v1/memory:2592 #49 0x697b76 in Envoy::Server::InstanceImpl::InstanceImpl(Envoy::Server::Options&, Envoy::Event::TimeSystem&, std::__1::shared_ptr<Envoy::Network::Address::Instance const>, Envoy::TestHooks&, Envoy::Server::HotRestart&, Envoy::Stats::StoreRoot&, Envoy::Thread::BasicLockable&, Envoy::Server::ComponentFactory&, std::__1::unique_ptr<Envoy::Runtime::RandomGenerator, std::__1::default_delete<Envoy::Runtime::RandomGenerator> >&&, Envoy::ThreadLocal::Instance&) /source/server/server.cc:92 #50 0x586026 in make_unique<Envoy::Server::InstanceImpl, testing::NiceMock<Envoy::Server::MockOptions> &, Envoy::Event::TestTimeSystem &, std::__1::shared_ptr<Envoy::Network::Address::Ipv4Instance>, Envoy::DefaultTestHooks &, testing::NiceMock<Envoy::Server::MockHotRestart> &, Envoy::Stats::TestIsolatedStoreImpl &, Envoy::Thread::MutexBasicLockable &, Envoy::Server::TestComponentFactory &, std::__1::unique_ptr<Envoy::Runtime::RandomGeneratorImpl, std::__1::default_delete<Envoy::Runtime::RandomGeneratorImpl> >, Envoy::ThreadLocal::InstanceImpl &> /usr/local/include/c++/v1/memory:3118:32 #51 0x586026 in Envoy::Server::TestOneProtoInput(envoy::config::bootstrap::v2::Bootstrap const&) /test/server/server_fuzz_test.cc:78 Fixes oss-fuzz issue https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11231 Risk Level: Low Testing: Corpus entry added. It's pretty hard to build regressions for this kind of destruction ordering, so relying on server_fuzz_test + corpus. Signed-off-by: Harvey Tuch <[email protected]>
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Comparing this against
ambuc/symbol-table.This has a few bugs -- I think this segfaults about 50% of the time while destructing something inside server/server.cc, so it can be built and run but tends to crash hard when it begins closing and draining listeners (I think I put some private member variables in the wrong order).
Otherwise this works (!!) and saves ~20% memory consumption on a config of O(10k) clusters.
NB: I think there are places in here where I naively perform the same encode twice in a row, or where it might make sense to perform an encode and then pass that StatNamePtr alongside the original string into some new function, to avoid needing to perform the encode. Feel free to point them out if you see them.