Requests from exporter cause mysql router crash

[duongmn89]

Hi, I'm facing a problem. After I started using mysql router exporter few weeks ago (used as sidecar container of mysqlrouter pod on k8s), mysql router was crashed some times with this stacktrace (it happend after 7-10 days running):
I was wondering it happend because of mysql router exporter or not. I tried with both 8.0.32 and 8.0.33 mysql router versions.

Application got fatal signal: 11
stack_bottom = 0 thread_stack 0x0
/usr/lib64/mysqlrouter/private/libmysqlharness.so.1(my_print_stacktrace(unsigned char const*, unsigned long)+0x41) [0x7f147816bd41]
/usr/lib64/mysqlrouter/private/libmysqlharness.so.1(+0xd87f1) [0x7f14781567f1]
/lib64/libpthread.so.0(+0x12d00) [0x7f1477d8cd00]
/usr/lib64/mysqlrouter/private/libmysqlrouter_routing.so.1(MysqlRoutingClassicConnection::get_server_address[abi:cxx11]() const+0x42) [0x7f1474a85882]
/usr/lib64/mysqlrouter/private/libmysqlrouter_routing.so.1(void concurrent_map<MySQLRoutingConnectionBase*, std::shared_ptr<MySQLRoutingConnectionBase>, std::hash<MySQLRoutingConnectionBase*> >::for_each<ConnectionContainer::get_all_connections_info()::{lambda(std::pair<MySQLRoutingConnectionBase* const, std::shared_ptr<MySQLRoutingConnectionBase> > const&)#1}>(ConnectionContainer::get_all_connections_info()::{lambda(std::pair<MySQLRoutingConnectionBase* const, std::shared_ptr<MySQLRoutingConnectionBase> >/usr/lib64/mysqlrouter/private/libmysqlrouter_routing.so.1(MySQLRouting::get_connections()+0x38) [0x7f1474a5e6e8]
/usr/lib64/mysqlrouter/private/libmysqlrouter_routing.so.1(MySQLRoutingAPI::get_connections() const+0x29) [0x7f1474a807e9]
/usr/lib64/mysqlrouter/rest_routing.so(RestRoutingConnections::on_handle_request(HttpRequest&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)+0x1de) [0x7f1474b974ae]
/usr/lib64/mysqlrouter/rest_api.so(RestApi::handle_paths(HttpRequest&)+0x729) [0x7f1474c14379]
/usr/lib64/mysqlrouter/http_server.so(HttpRequestRouter::route(HttpRequest)+0x16e) [0x7f1474c8cb2e]
/usr/lib64/mysqlrouter/http_server.so(+0x37e0c) [0x7f1474c8ce0c]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0xd6b5) [0x7f14780056b5]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0x3076c) [0x7f147802876c]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0x18b75) [0x7f1478010b75]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0x34e5d) [0x7f147802ce5d]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0x34e86) [0x7f147802ce86]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0x1ff42) [0x7f1478017f42]
/usr/lib64/mysqlrouter/private/libmysqlrouter_http.so.1(+0x20767) [0x7f1478018767]
/usr/lib64/mysqlrouter/http_server.so(HttpRequestThread::wait_and_dispatch()+0x35) [0x7f1474c7b5d5]
/lib64/libstdc++.so.6(+0xc2ba3) [0x7f1476514ba3]
/lib64/libpthread.so.0(+0x81da) [0x7f1477d821da]
/lib64/libc.so.6(clone+0x43) [0x7f1475b2ae73]