test/osd/TestOSDScrub: free res_ninit/res_nquery and MonClient resource#56885
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test/osd/TestOSDScrub: free res_ninit/res_nquery and MonClient resource#56885
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When sanitizer is enabled, unittest_osdscrub shows
```
=================================================================
==1633952==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 28 byte(s) in 1 object(s) allocated from:
#0 0xaaaab4e108e0 in malloc (/root/ceph/build/bin/unittest_osdscrub+0x1ed08e0) (BuildId: b3cfa2137be96d75535beecf0f2500cec10c7550)
#1 0xffffa8cac2f8 in __res_context_send resolv/./resolv/res_send.c:334:9
#2 0xffffa8ca9c54 in __res_context_query resolv/./resolv/res_query.c:216:6
#3 0xffffa8caa4a8 in __res_context_querydomain resolv/./resolv/res_query.c:625:9
#4 0xffffa8caa4a8 in __res_context_search resolv/./resolv/res_query.c:381:9
#5 0xffffa8caaa20 in context_search_common resolv/./resolv/res_query.c:550:16
#6 0xffffa8caaa20 in res_nsearch resolv/./resolv/res_query.c:563:10
ceph#7 0xffffabbf1f64 in ceph::ResolvHWrapper::res_nsearch(__res_state*, char const*, int, int, unsigned char*, int) /root/ceph/src/common/dns_resolve.cc:37:10
ceph#8 0xffffabbf6574 in ceph::DNSResolver::resolve_srv_hosts(ceph::common::CephContext*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ceph::DNSResolver::SRV_Protocol, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::DNSResolver::Record, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, ceph::DNSResolver::Record> > >*) /root/ceph/src/common/dns_resolve.cc:295:19
ceph#9 0xffffac8edaf0 in MonMap::init_with_dns_srv(ceph::common::CephContext*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, std::ostream&) /root/ceph/src/mon/MonMap.cc:935:36
ceph#10 0xffffac8eeec8 in MonMap::build_initial(ceph::common::CephContext*, bool, std::ostream&) /root/ceph/src/mon/MonMap.cc:1014:20
ceph#11 0xffffac85beb0 in MonClient::build_initial_monmap() /root/ceph/src/mon/MonClient.cc:93:18
ceph#12 0xaaaab4e50d98 in TestOSDScrub_scrub_time_permit_Test::TestBody() /root/ceph/src/test/osd/TestOSDScrub.cc:73:6
ceph#13 0xaaaab4f655b0 in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2605:10
ceph#14 0xaaaab4f16264 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2641:14
ceph#15 0xaaaab4ec6ca8 in testing::Test::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:2680:5
ceph#16 0xaaaab4ec8bec in testing::TestInfo::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:2858:11
ceph#17 0xaaaab4eca1ec in testing::TestSuite::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:3012:28
ceph#18 0xaaaab4ee5fb0 in testing::internal::UnitTestImpl::RunAllTests() /root/ceph/src/googletest/googletest/src/gtest.cc:5723:44
ceph#19 0xaaaab4f6f4c4 in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2605:10
ceph#20 0xaaaab4f1d4bc in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2641:14
ceph#21 0xaaaab4ee5428 in testing::UnitTest::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:5306:10
ceph#22 0xaaaab4e4b790 in RUN_ALL_TESTS() /root/ceph/src/googletest/googletest/include/gtest/gtest.h:2486:46
ceph#23 0xaaaab4e49dbc in main /root/ceph/src/test/unit.cc:45:10
ceph#24 0xffffa8bc73f8 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
ceph#25 0xffffa8bc74c8 in __libc_start_main csu/../csu/libc-start.c:392:3
ceph#26 0xaaaab4d9972c in _start (/root/ceph/build/bin/unittest_osdscrub+0x1e5972c) (BuildId: b3cfa2137be96d75535beecf0f2500cec10c7550)
-----------------------------------------------------
Suppressions used:
count bytes template
1 45 ^MallocExtension::Initialize
-----------------------------------------------------
SUMMARY: AddressSanitizer: 28 byte(s) leaked in 1 allocation(s).
```
1. 'res_ninit/res_nquery' memory should be freed.
Signed-off-by: Rongqi Sun <sunrongqi@huawei.com>
2. free MonClient using Monclient::shutdown Signed-off-by: Rongqi Sun <sunrongqi@huawei.com>
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athanatos
approved these changes
Apr 15, 2024
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When sanitizer is enabled, unittest_osdscrub shows
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