Jim Apple has posted comments on this change. Change subject: IMPALA-5031: remove undefined behavior: nullptr member function call ......................................................................
Patch Set 1: (1 comment) http://gerrit.cloudera.org:8080/#/c/6714/1/be/src/runtime/coordinator.cc File be/src/runtime/coordinator.cc: Line 379: return (coord_instance_ == nullptr) ? nullptr : coord_instance_->executor(); While I agree they are not needed, I find it to be clearer this way. Unrelatedly, here is a sample backtrace: /home/ubuntu/Impala/be/src/runtime/fragment-instance-state.h:74:46: runtime error: member access within null pointer of type 'impala::FragmentInstanceState' #0 0x7fcdea60aaf8 in impala::FragmentInstanceState::executor() /home/ubuntu/Impala/be/src/runtime/fragment-instance-state.h:74:46 #1 0x7fcdea5a6239 in impala::Coordinator::executor() /home/ubuntu/Impala/be/src/runtime/coordinator.cc:379:10 #2 0x7fcdea5b639b in impala::Coordinator::PrintFragmentInstanceInfo() /home/ubuntu/Impala/be/src/runtime/coordinator.cc:1143:18 #3 0x7fcdea5acdb8 in impala::Coordinator::Exec() /home/ubuntu/Impala/be/src/runtime/coordinator.cc:507:3 #4 0x7fcde40f110f in impala::ImpalaServer::QueryExecState::ExecQueryOrDmlRequest(impala::TQueryExecRequest const&) /home/ubuntu/Impala/be/src/service/query-exec-state.cc:469:12 #5 0x7fcde40e6835 in impala::ImpalaServer::QueryExecState::Exec(impala::TExecRequest*) /home/ubuntu/Impala/be/src/service/query-exec-state.cc:158:14 #6 0x7fcde3cf04fc in impala::ImpalaServer::ExecuteInternal(impala::TQueryCtx const&, std::shared_ptr<impala::ImpalaServer::SessionState>, bool*, std::shared_ptr<impala::ImpalaServer::QueryExecState>*) /home/ubuntu/Impala/be/src/service/impala-server.cc:829:29 #7 0x7fcde3cecd82 in impala::ImpalaServer::Execute(impala::TQueryCtx*, std::shared_ptr<impala::ImpalaServer::SessionState>, std::shared_ptr<impala::ImpalaServer::QueryExecState>*) /home/ubuntu/Impala/be/src/service/impala-server.cc:775:19 #8 0x7fcde4098e60 in impala::ImpalaServer::query(beeswax::QueryHandle&, beeswax::Query const&) /home/ubuntu/Impala/be/src/service/impala-beeswax-server.cc:68:29 #9 0x7fcde13efdd7 in beeswax::BeeswaxServiceProcessor::process_query(int, apache::thrift::protocol::TProtocol*, apache::thrift::protocol::TProtocol*, void*) /home/ubuntu/Impala/be/generated-sources/gen-cpp/BeeswaxService.cpp:2979:5 #10 0x7fcde13ef165 in beeswax::BeeswaxServiceProcessor::dispatchCall(apache::thrift::protocol::TProtocol*, apache::thrift::protocol::TProtocol*, std::string const&, int, void*) /home/ubuntu/Impala/be/generated-sources/gen-cpp/BeeswaxService.cpp:2952:3 #11 0x7fcde1347c16 in impala::ImpalaServiceProcessor::dispatchCall(apache::thrift::protocol::TProtocol*, apache::thrift::protocol::TProtocol*, std::string const&, int, void*) /home/ubuntu/Impala/be/generated-sources/gen-cpp/ImpalaService.cpp:1673:12 #12 0x7fcdeccdb48e in apache::thrift::TDispatchProcessor::process(boost::shared_ptr<apache::thrift::protocol::TProtocol>, boost::shared_ptr<apache::thrift::protocol::TProtocol>, void*) /home/ubuntu/Impala/toolchain/thrift-0.9.0-p8/include/thrift/TDispatchProcessor.h:121:12 #13 0x17e40ea in apache::thrift::server::TThreadPoolServer::Task::run() (/home/ubuntu/Impala/be/build/debug/service/impalad+0x17e40ea) #14 0x17c75f8 in apache::thrift::concurrency::ThreadManager::Worker::run() (/home/ubuntu/Impala/be/build/debug/service/impalad+0x17c75f8) #15 0x7fcde4ee2a20 in impala::ThriftThread::RunRunnable(boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*) /home/ubuntu/Impala/be/src/rpc/thrift-thread.cc:64:3 #16 0x7fcde4ee916b in boost::_mfi::mf2<void, impala::ThriftThread, boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*>::operator()(impala::ThriftThread*, boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*) const /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/bind/mem_fn_template.hpp:280:16 #17 0x7fcde4ee8e8a in void boost::_bi::list3<boost::_bi::value<impala::ThriftThread*>, boost::_bi::value<boost::shared_ptr<apache::thrift::concurrency::Runnable> >, boost::_bi::value<impala::Promise<unsigned long>*> >::operator()<boost::_mfi::mf2<void, impala::ThriftThread, boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf2<void, impala::ThriftThread, boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*>&, boost::_bi::list0&, int) /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/bind/bind.hpp:392:9 #18 0x7fcde4ee894b in boost::_bi::bind_t<void, boost::_mfi::mf2<void, impala::ThriftThread, boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*>, boost::_bi::list3<boost::_bi::value<impala::ThriftThread*>, boost::_bi::value<boost::shared_ptr<apache::thrift::concurrency::Runnable> >, boost::_bi::value<impala::Promise<unsigned long>*> > >::operator()() /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/bind/bind_template.hpp:20:16 #19 0x7fcde4ee7c09 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf2<void, impala::ThriftThread, boost::shared_ptr<apache::thrift::concurrency::Runnable>, impala::Promise<unsigned long>*>, boost::_bi::list3<boost::_bi::value<impala::ThriftThread*>, boost::_bi::value<boost::shared_ptr<apache::thrift::concurrency::Runnable> >, boost::_bi::value<impala::Promise<unsigned long>*> > >, void>::invoke(boost::detail::function::function_buffer&) /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/function/function_template.hpp:153:11 #20 0x7fcdec4a6dd4 in boost::function0<void>::operator()() const /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/function/function_template.hpp:766:14 #21 0x7fcdec497f10 in impala::Thread::SuperviseThread(std::string const&, std::string const&, boost::function<void ()>, impala::Promise<long>*) /home/ubuntu/Impala/be/src/util/thread.cc:325:3 #22 0x7fcdec4bff83 in void boost::_bi::list4<boost::_bi::value<std::string>, boost::_bi::value<std::string>, boost::_bi::value<boost::function<void ()> >, boost::_bi::value<impala::Promise<long>*> >::operator()<void (*)(std::string const&, std::string const&, boost::function<void ()>, impala::Promise<long>*), boost::_bi::list0>(boost::_bi::type<void>, void (*&)(std::string const&, std::string const&, boost::function<void ()>, impala::Promise<long>*), boost::_bi::list0&, int) /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/bind/bind.hpp:457:9 #23 0x7fcdec4bf8ab in boost::_bi::bind_t<void, void (*)(std::string const&, std::string const&, boost::function<void ()>, impala::Promise<long>*), boost::_bi::list4<boost::_bi::value<std::string>, boost::_bi::value<std::string>, boost::_bi::value<boost::function<void ()> >, boost::_bi::value<impala::Promise<long>*> > >::operator()() /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/bind/bind_template.hpp:20:16 #24 0x7fcdec4be2f5 in boost::detail::thread_data<boost::_bi::bind_t<void, void (*)(std::string const&, std::string const&, boost::function<void ()>, impala::Promise<long>*), boost::_bi::list4<boost::_bi::value<std::string>, boost::_bi::value<std::string>, boost::_bi::value<boost::function<void ()> >, boost::_bi::value<impala::Promise<long>*> > > >::run() /home/ubuntu/Impala/toolchain/boost-1.57.0-p1/include/boost/thread/detail/thread.hpp:116:17 #25 0xa4d0b9 in thread_proxy (/home/ubuntu/Impala/be/build/debug/service/impalad+0xa4d0b9) #26 0x7fcddcf18183 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x8183) #27 0x7fcddcc4537c in clone (/lib/x86_64-linux-gnu/libc.so.6+0xfa37c) More can be found in the logs of this Jenkins job: http://jenkins.impala.io:8080/job/ubuntu-14.04-from-scratch/1173/artifact/Impala/logs_static/logs/ -- To view, visit http://gerrit.cloudera.org:8080/6714 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I2377c14f7ea8f93bb96504dd2319c11ff709cd26 Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Jim Apple <jbapple-imp...@apache.org> Gerrit-Reviewer: Jim Apple <jbapple-imp...@apache.org> Gerrit-Reviewer: Michael Ho <k...@cloudera.com> Gerrit-HasComments: Yes
