doris版本：doris-1.2.2-rc01-568434a
操作系统： centos7.9
CPU：x86-64
3个BE节点be.INFO日志都有报错（见附件图片）：
W0913 10:59:22.812862 517 fragment_mgr.cpp:305] query_id:
7c744c1e622c4fa0-8f454e7d52a911a9, couldn't get a client for
TNetworkAddress(hostname=, port=0), reason: RPC error(error -1): Couldn't open
transport for :0 (Could not resolve host for client socket.)/n @
0x557af2b366ea doris::Status::ConstructErrorStatus()
@ 0x557af36af8fe (unknown)
@ 0x557af33fc05a doris::ClientCacheHelper::_create_client()
@ 0x557af33fe2ed doris::ClientCacheHelper::get_client()
@ 0x557af346f3d4 doris::FragmentExecState::coordinator_callback()
@ 0x557af3490127 doris::PlanFragmentExecutor::send_report()
@ 0x557af34967c4 doris::PlanFragmentExecutor::open()
@ 0x557af346e2e9 doris::FragmentExecState::execute()
@ 0x557af3471a96 doris::FragmentMgr::_exec_actual()
@ 0x557af34721da (unknown)
@ 0x557af3726cc5 doris::ThreadPool::dispatch_thread()
@ 0x557af371d0af doris::Thread::supervise_thread()
@ 0x7f8252756ea5 start_thread
@ 0x7f8252a69b0d __clone
@ (nil) (unknown)
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