The error "COMM_FAILURE: vmcid: 0x2000 minor code: 1889: end of connection" happens first. Then the client
cannot reconnect to the server due to the error "COMM_FAILURE: vmcid: 0x2000 minor code: 1891 write error".  
The client's log with 'setDiagnostics=255' is as follows:

...

[ Connection[Socket[addr=/xxx.xxx.xxx.xxx,port=1570,localport=xxxxx]]: socket exception : java.net.SocketException: Connection reset ]

[ Request["getLocalStatus"]: got response to request ]

[ Request["getLocalStatus"]: at inReplyfailure point for exception: org.omg.CORBA.COMM_FAILURE: remote exception - Communication failure

end of connection

Reason: (unknown)

(Possibly your target server has crashed/exitted) vmcid: 0x2000 minor code: 1889 completed: Maybe ]

...

 

[ Connection[Socket[addr=/xxx.xxx.xxx.xxx,port=xxxx,localport=xxxxx]]: write() failed : i/o exception ]

[ Connection[Socket[addr=/xxx.xxx.xxx.xxx,port=xxxx,localport=xxxxx]]: i/o exception java.net.SocketException: Broken pipe ]

[ _CORBA.Orbix: read config parameter OrbixWeb.IT_USE_ORBIX3_STYLE_SYS_EXC: "true" ]

[ Request["getIIOPDetails"]: reconnect after failed connection? ]

[ Request["getIIOPDetails"]: at inReplyfailure point for exception: org.omg.CORBA.COMM_FAILURE: Communication failure

write error

Reason: (unknown)

(Possibly your target server has crashed/exitted) vmcid: 0x2000 minor code: 1891 completed: No ]

[ _CORBA.Orbix: Connection[IIOP, Socket[addr=/xxx.xxx.xxx.xxx,port=xxxx,localport=xxxxx], is_daemon, is_bidirectional] reference count decremented to 0 ]

[ _CORBA.Orbix: Connection[IIOP, Socket[addr=/xxx.xxx.xxx.xxx,port=xxxx,localport=xxxxx], is_bidirectional] reference count incremented to 1 ]