Fix DBTest2.BackupFileTemperature memory leak #9610
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Valgrind was failing with the below error because we forgot to destroy the `BackupEngine` object: ``` ==421173== Command: ./db_test2 --gtest_filter=DBTest2.BackupFileTemperature ==421173== Note: Google Test filter = DBTest2.BackupFileTemperature [==========] Running 1 test from 1 test case. [----------] Global test environment set-up. [----------] 1 test from DBTest2 [ RUN ] DBTest2.BackupFileTemperature --421173-- WARNING: unhandled amd64-linux syscall: 425 --421173-- You may be able to write your own handler. --421173-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --421173-- Nevertheless we consider this a bug. Please report --421173-- it at http://valgrind.org/support/bug_reports.html. [ OK ] DBTest2.BackupFileTemperature (3366 ms) [----------] 1 test from DBTest2 (3371 ms total) [----------] Global test environment tear-down [==========] 1 test from 1 test case ran. (3413 ms total) [ PASSED ] 1 test. ==421173== ==421173== HEAP SUMMARY: ==421173== in use at exit: 13,042 bytes in 195 blocks ==421173== total heap usage: 26,022 allocs, 25,827 frees, 27,555,265 bytes allocated ==421173== ==421173== 8 bytes in 1 blocks are possibly lost in loss record 6 of 167 ==421173== at 0x4838DBF: operator new(unsigned long) (vg_replace_malloc.c:344) ==421173== by 0x8D4606: allocate (new_allocator.h:114) ==421173== by 0x8D4606: allocate (alloc_traits.h:445) ==421173== by 0x8D4606: _M_allocate (stl_vector.h:343) ==421173== by 0x8D4606: reserve (vector.tcc:78) ==421173== by 0x8D4606: rocksdb::BackupEngineImpl::Initialize() (backupable_db.cc:1174) ==421173== by 0x8D5473: Initialize (backupable_db.cc:918) ==421173== by 0x8D5473: rocksdb::BackupEngine::Open(rocksdb::BackupEngineOptions const&, rocksdb::Env*, rocksdb::BackupEngine**) (backupable_db.cc:937) ==421173== by 0x50AC8F: Open (backup_engine.h:585) ==421173== by 0x50AC8F: rocksdb::DBTest2_BackupFileTemperature_Test::TestBody() (db_test2.cc:6996) ... ``` Test Plan: ``` $ make -j24 ROCKSDBTESTS_SUBSET=db_test2 valgrind_check_some ```
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Summary: Valgrind was complaining about the test BackupEngineTest.ExcludeFiles. The cause is backup_engine not being freed similar to #9610. ``` ==18228== Command: ./backup_engine_test --gtest_filter=BackupEngineTest.ExcludeFiles ==18228== Note: Google Test filter = BackupEngineTest.ExcludeFiles [==========] Running 1 test from 1 test case. [----------] Global test environment set-up. [----------] 1 test from BackupEngineTest [ RUN ] BackupEngineTest.ExcludeFiles [ OK ] BackupEngineTest.ExcludeFiles (16264 ms) [----------] 1 test from BackupEngineTest (16273 ms total) [----------] Global test environment tear-down [==========] 1 test from 1 test case ran. (16306 ms total) [ PASSED ] 1 test. ==18228== ==18228== HEAP SUMMARY: ==18228== in use at exit: 14,099 bytes in 159 blocks ==18228== total heap usage: 255,328 allocs, 255,169 frees, 497,538,546 bytes allocated ==18228== ==18228== 19 bytes in 1 blocks are possibly lost in loss record 4 of 67 ==18228== at 0x483BE63: operator new(unsigned long) (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so) ==18228== by 0x1E752D: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char*>(char*, char*, std::forward_iterator_tag) [clone .constprop.0] (basic_string.tcc:219) ==18228== by 0x1F1898: _M_construct_aux<char*> (basic_string.h:251) ==18228== by 0x1F1898: _M_construct<char*> (basic_string.h:270) ==18228== by 0x1F1898: basic_string (basic_string.h:455) ==18228== by 0x1F1898: construct<std::__cxx11::basic_string<char>, const std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&> (new_allocator.h:146) ==18228== by 0x1F1898: construct<std::__cxx11::basic_string<char>, const std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&> (alloc_traits.h:483) ==18228== by 0x1F1898: push_back (stl_vector.h:1189) ==18228== by 0x1F1898: rocksdb::(anonymous namespace)::TestFs::NewWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::FileOptions const&, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::IODebugContext*) (backup_engine_test.cc:208) ==18228== by 0x4B3583: rocksdb::NewWritableFile(rocksdb::FileSystem*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::FileOptions const&) (read_write_util.cc:23) ==18228== by 0x31C3A8: rocksdb::DBImpl::CreateWAL(unsigned long, unsigned long, unsigned long, rocksdb::log::Writer**) (db_impl_open.cc:1752) ==18228== by 0x321A8C: 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:1852) ==18228== by 0x322E7F: Open (db_impl_open.cc:1660) ==18228== by 0x322E7F: rocksdb::DB::Open(rocksdb::Options const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::DB**) (db_impl_open.cc:1637) ==18228== by 0x1EE1CD: InitializeDBAndBackupEngine (backup_engine_test.cc:724) ==18228== by 0x1EE1CD: rocksdb::(anonymous namespace)::BackupEngineTest::OpenDBAndBackupEngine(bool, bool, rocksdb::(anonymous namespace)::BackupEngineTest::ShareOption) (backup_engine_test.cc:732) ==18228== by 0x217585: rocksdb::(anonymous namespace)::BackupEngineTest_ExcludeFiles_Test::TestBody() (backup_engine_test.cc:4232) ==18228== by 0x296143: HandleSehExceptionsInMethodIfSupported<testing::Test, void> (gtest-all.cc:3899) ==18228== by 0x296143: void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (gtest-all.cc:3935) ==18228== by 0x28A0A5: testing::Test::Run() [clone .part.0] (gtest-all.cc:3973) ==18228== by 0x28A364: Run (gtest-all.cc:3965) ==18228== by 0x28A364: testing::TestInfo::Run() [clone .part.0] (gtest-all.cc:4149) ... ``` Pull Request resolved: #11066 Test Plan: make -j24 J=24 ROCKSDBTESTS_SUBSET=backup_engine_test valgrind_check_some Reviewed By: ajkr Differential Revision: D42297791 Pulled By: cbi42 fbshipit-source-id: db67982b27b91cc78e1a9f4a96da0cba7c9785b7
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Valgrind was failing with the below error because we forgot to destroy
the
BackupEngineobject:Test Plan: