MyRocks tests produce valgrind failures

./mtr --valgrind rocksdb_sys_vars.rocksdb_lock_wait_timeout_basic

==30698== 24 bytes in 1 blocks are still reachable in loss record 2 of 19

==30698==    at 0x4C3017F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==30698==    by 0xD0C3865: __gnu_cxx::new_allocator<std::__detail::_Hash_node_base*>::allocate(unsigned long, void const*) (new_allocator.h:111)

==30698==    by 0xD0BD988: std::allocator_traits<std::allocator<std::__detail::_Hash_node_base*> >::allocate(std::allocator<std::__detail::_Hash_node_base*>&, unsigned long) (alloc_traits.h:436)

==30698==    by 0xD54057B: std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<rocksdb::ThreadStatusData*, false> > >::_M_allocate_buckets(unsigned long) (hashtable_policy.h:2107)

==30698==    by 0xD53FEE8: std::_Hashtable<rocksdb::ThreadStatusData*, rocksdb::ThreadStatusData*, std::allocator<rocksdb::ThreadStatusData*>, std::__detail::_Identity, std::equal_to<rocksdb::ThreadStatusData*>, std::hash<rocksdb::ThreadStatusData*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, true, true> >::_M_allocate_buckets(unsigned long) (hashtable.h:354)

==30698==    by 0xD53F1DC: std::_Hashtable<rocksdb::ThreadStatusData*, rocksdb::ThreadStatusData*, std::allocator<rocksdb::ThreadStatusData*>, std::__detail::_Identity, std::equal_to<rocksdb::ThreadStatusData*>, std::hash<rocksdb::ThreadStatusData*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, true, true> >::_M_rehash_aux(unsigned long, std::integral_constant<bool, true>) (hashtable.h:2092)

==30698==    by 0xD53E04E: std::_Hashtable<rocksdb::ThreadStatusData*, rocksdb::ThreadStatusData*, std::allocator<rocksdb::ThreadStatusData*>, std::__detail::_Identity, std::equal_to<rocksdb::ThreadStatusData*>, std::hash<rocksdb::ThreadStatusData*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, true, true> >::_M_rehash(unsigned long, unsigned long const&) (hashtable.h:2071)

==30698==    by 0xD53C8DA: std::_Hashtable<rocksdb::ThreadStatusData*, rocksdb::ThreadStatusData*, std::allocator<rocksdb::ThreadStatusData*>, std::__detail::_Identity, std::equal_to<rocksdb::ThreadStatusData*>, std::hash<rocksdb::ThreadStatusData*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, true, true> >::_M_insert_unique_node(unsigned long, unsigned long, std::__detail::_Hash_node<rocksdb::ThreadStatusData*, false>*) (hashtable.h:1718)

==30698==    by 0xD53B85C: std::pair<std::__detail::_Node_iterator<rocksdb::ThreadStatusData*, true, false>, bool> std::_Hashtable<rocksdb::ThreadStatusData*, rocksdb::ThreadStatusData*, std::allocator<rocksdb::ThreadStatusData*>, std::__detail::_Identity, std::equal_to<rocksdb::ThreadStatusData*>, std::hash<rocksdb::ThreadStatusData*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, true, true> >::_M_insert<rocksdb::ThreadStatusData* const&, std::__detail::_AllocNode<std::allocator<std::__detail::_Hash_node<rocksdb::ThreadStatusData*, false> > > >(rocksdb::ThreadStatusData* const&, std::__detail::_AllocNode<std::allocator<std::__detail::_Hash_node<rocksdb::ThreadStatusData*, false> > > const&, std::integral_constant<bool, true>) (hashtable.h:1822)

==30698==    by 0xD53AAAF: std::__detail::_Insert_base<rocksdb::ThreadStatusData*, rocksdb::ThreadStatusData*, std::allocator<rocksdb::ThreadStatusData*>, std::__detail::_Identity, std::equal_to<rocksdb::ThreadStatusData*>, std::hash<rocksdb::ThreadStatusData*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, true, true> >::insert(rocksdb::ThreadStatusData* const&) (hashtable_policy.h:843)

==30698==    by 0xD539FBA: std::unordered_set<rocksdb::ThreadStatusData*, std::hash<rocksdb::ThreadStatusData*>, std::equal_to<rocksdb::ThreadStatusData*>, std::allocator<rocksdb::ThreadStatusData*> >::insert(rocksdb::ThreadStatusData* const&) (unordered_set.h:420)

==30698==    by 0xD537E44: rocksdb::ThreadStatusUpdater::RegisterThread(rocksdb::ThreadStatus::ThreadType, unsigned long) (thread_status_updater.cc:25)

==30698==    by 0xD2FD533: rocksdb::ThreadStatusUtil::RegisterThread(rocksdb::Env const*, rocksdb::ThreadStatus::ThreadType) (thread_status_util.cc:24)

==30698==    by 0xD56227A: rocksdb::ThreadPoolImpl::Impl::BGThreadWrapper(void*) (threadpool_imp.cc:300)

==30698==    by 0xD567D72: void* std::__invoke_impl<void*, void* (*)(void*), rocksdb::BGThreadMetadata*>(std::__invoke_other, void* (*&&)(void*), rocksdb::BGThreadMetadata*&&) (invoke.h:60)

==30698==    by 0xD567303: std::__invoke_result<void* (*)(void*), rocksdb::BGThreadMetadata*>::type std::__invoke<void* (*)(void*), rocksdb::BGThreadMetadata*>(void* (*&&)(void*), rocksdb::BGThreadMetadata*&&) (invoke.h:96)

==30698== 

==30698== 24 bytes in 1 blocks are still reachable in loss record 4 of 19

==30698==    at 0x4C3017F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==30698==    by 0xD0C3865: __gnu_cxx::new_allocator<std::__detail::_Hash_node_base*>::allocate(unsigned long, void const*) (new_allocator.h:111)

==30698==    by 0xD0BD988: std::allocator_traits<std::allocator<std::__detail::_Hash_node_base*> >::allocate(std::allocator<std::__detail::_Hash_node_base*>&, unsigned long) (alloc_traits.h:436)

==30698==    by 0xD5407B5: std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, false> > >::_M_allocate_buckets(unsigned long) (hashtable_policy.h:2107)

==30698==    by 0xD540192: std::_Hashtable<void const*, std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_allocate_buckets(unsigned long) (hashtable.h:354)

==30698==    by 0xD53F756: std::_Hashtable<void const*, std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_rehash_aux(unsigned long, std::integral_constant<bool, true>) (hashtable.h:2092)

==30698==    by 0xD53E5FE: std::_Hashtable<void const*, std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_rehash(unsigned long, unsigned long const&) (hashtable.h:2071)

==30698==    by 0xD53D1CE: std::_Hashtable<void const*, std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_insert_unique_node(unsigned long, unsigned long, std::__detail::_Hash_node<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, false>*) (hashtable.h:1718)

==30698==    by 0xD53BF6F: std::pair<std::__detail::_Node_iterator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, false, false>, bool> std::_Hashtable<void const*, std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_emplace<std::piecewise_construct_t const&, std::tuple<void const*>, std::tuple<void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >(std::integral_constant<bool, true>, std::piecewise_construct_t const&, std::tuple<void const*>&&, std::tuple<void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >&&) (hashtable.h:1666)

==30698==    by 0xD53B3A3: std::pair<std::__detail::_Node_iterator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, false, false>, bool> std::_Hashtable<void const*, std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::emplace<std::piecewise_construct_t const&, std::tuple<void const*>, std::tuple<void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >(std::piecewise_construct_t const&, std::tuple<void const*>&&, std::tuple<void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >&&) (hashtable.h:736)

==30698==    by 0xD53A861: std::pair<std::__detail::_Node_iterator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo>, false, false>, bool> std::unordered_map<void const*, rocksdb::ConstantColumnFamilyInfo, std::hash<void const*>, std::equal_to<void const*>, std::allocator<std::pair<void const* const, rocksdb::ConstantColumnFamilyInfo> > >::emplace<std::piecewise_construct_t const&, std::tuple<void const*>, std::tuple<void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >(std::piecewise_construct_t const&, std::tuple<void const*>&&, std::tuple<void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >&&) (unordered_map.h:387)

==30698==    by 0xD538B4F: rocksdb::ThreadStatusUpdater::NewColumnFamilyInfo(void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (thread_status_updater.cc:226)

==30698==    by 0xD2FD94B: rocksdb::ThreadStatusUtil::NewColumnFamilyInfo(rocksdb::DB const*, rocksdb::ColumnFamilyData const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::Env const*) (thread_status_util.cc:128)

==30698==    by 0xD1679BA: rocksdb::DBImpl::NewThreadStatusCfInfo(rocksdb::ColumnFamilyData*) const (db_impl.cc:2750)

==30698==    by 0xD1C9745: rocksdb::DBImpl::Open(rocksdb::DBOptions const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<rocksdb::ColumnFamilyDescriptor, std::allocator<rocksdb::ColumnFamilyDescriptor> > const&, std::vector<rocksdb::ColumnFamilyHandle*, std::allocator<rocksdb::ColumnFamilyHandle*> >*, rocksdb::DB**, bool, bool) (db_impl_open.cc:1106)

==30698==    by 0xD44F516: rocksdb::TransactionDB::Open(rocksdb::DBOptions const&, rocksdb::TransactionDBOptions const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<rocksdb::ColumnFamilyDescriptor, std::allocator<rocksdb::ColumnFamilyDescriptor> > const&, std::vector<rocksdb::ColumnFamilyHandle*, std::allocator<rocksdb::ColumnFamilyHandle*> >*, rocksdb::TransactionDB**) (pessimistic_transaction_db.cc:228)

==30698== 

==30698== 24 bytes in 1 blocks are still reachable in loss record 5 of 19

==30698==    at 0x4C3017F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==30698==    by 0xD0C3865: __gnu_cxx::new_allocator<std::__detail::_Hash_node_base*>::allocate(unsigned long, void const*) (new_allocator.h:111)

==30698==    by 0xD0BD988: std::allocator_traits<std::allocator<std::__detail::_Hash_node_base*> >::allocate(std::allocator<std::__detail::_Hash_node_base*>&, unsigned long) (alloc_traits.h:436)

==30698==    by 0xD540397: std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, false> > >::_M_allocate_buckets(unsigned long) (hashtable_policy.h:2107)

==30698==    by 0xD53FAC0: std::_Hashtable<void const*, std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, std::allocator<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > > >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_allocate_buckets(unsigned long) (hashtable.h:354)

==30698==    by 0xD53E932: std::_Hashtable<void const*, std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, std::allocator<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > > >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_rehash_aux(unsigned long, std::integral_constant<bool, true>) (hashtable.h:2092)

==30698==    by 0xD53D48E: std::_Hashtable<void const*, std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, std::allocator<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > > >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_rehash(unsigned long, unsigned long const&) (hashtable.h:2071)

==30698==    by 0xD53C29E: std::_Hashtable<void const*, std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, std::allocator<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > > >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_insert_unique_node(unsigned long, unsigned long, std::__detail::_Hash_node<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, false>*) (hashtable.h:1718)

==30698==    by 0xD53B4D0: std::__detail::_Map_base<void const*, std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > >, std::allocator<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > > >, std::__detail::_Select1st, std::equal_to<void const*>, std::hash<void const*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>::operator[](void const* const&) (hashtable_policy.h:728)

==30698==    by 0xD53A890: std::unordered_map<void const*, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> >, std::hash<void const*>, std::equal_to<void const*>, std::allocator<std::pair<void const* const, std::unordered_set<void const*, std::hash<void const*>, std::equal_to<void const*>, std::allocator<void const*> > > > >::operator[](void const* const&) (unordered_map.h:973)

==30698==    by 0xD538B75: rocksdb::ThreadStatusUpdater::NewColumnFamilyInfo(void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, void const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (thread_status_updater.cc:228)

==30698==    by 0xD2FD94B: rocksdb::ThreadStatusUtil::NewColumnFamilyInfo(rocksdb::DB const*, rocksdb::ColumnFamilyData const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::Env const*) (thread_status_util.cc:128)

==30698==    by 0xD1679BA: rocksdb::DBImpl::NewThreadStatusCfInfo(rocksdb::ColumnFamilyData*) const (db_impl.cc:2750)

==30698==    by 0xD1C9745: rocksdb::DBImpl::Open(rocksdb::DBOptions const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<rocksdb::ColumnFamilyDescriptor, std::allocator<rocksdb::ColumnFamilyDescriptor> > const&, std::vector<rocksdb::ColumnFamilyHandle*, std::allocator<rocksdb::ColumnFamilyHandle*> >*, rocksdb::DB**, bool, bool) (db_impl_open.cc:1106)

==30698==    by 0xD44F516: rocksdb::TransactionDB::Open(rocksdb::DBOptions const&, rocksdb::TransactionDBOptions const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<rocksdb::ColumnFamilyDescriptor, std::allocator<rocksdb::ColumnFamilyDescriptor> > const&, std::vector<rocksdb::ColumnFamilyHandle*, std::allocator<rocksdb::ColumnFamilyHandle*> >*, rocksdb::TransactionDB**) (pessimistic_transaction_db.cc:228)

==30698==    by 0xD064E94: myrocks::rocksdb_init_func(void*) (ha_rocksdb.cc:5141)