Conference lassie::ucx

5185.0. "RSH hangs intermittent" by BACHUS::VANLOOCK (Patrick DTN 856-8648) Mon Feb 03 1997 03:21

   Hi,
   
   One of our customer (BARCO...) called us for an intermittent 
   problem with RSH on UCX 3.3 ECO 10 & ECO 13: from time to time, 
   rsh's from Silicon Graphics client to this UCX-server just hangs, 
   on UCX-server: no new process created, NO OPCOM-message generated; 
   at that time, e.g. TELNET from same client to same UCX-server still 
   works fine.  Customer says that rsh's from some other clients are 
   still working at that time, while others are not(!??) ...
   
   On last occurance: 
            ucx show serv rsh/full  
               ==> lim 200, active 16, peak 25
            ucx show dev/serv=rsh 
               ==> 38 bg-devices
               from which 22 (= 38-16) owned by UCX$INET_ACP !!!
            ucx show dev bg.. /ful  of bg-devices owned by UCX$INET_ACP
               one of them: remote host: SG-station from which rsh fails
               some (not all) have status "ISCONNECTED CANTRECVMORE PRIV"
            ucx show comm/mem
               ==> waits & drops: all 0
            ucx disable service rsh + ucx enable service rsh 
               ==> problem solved ...
               ==> all 'phantom' bg-devices for service rsh owned by 
                   UCX$INET_ACP cleaned up 

   Any comment on what can be wrong there will be appreciated!

   Patrick

    Robert recently made some corrections in this area.  He found that the
    INET_ACP was not parsing the incoming rsh configuration information
    correctly.  (RSH connections go through the proxy scheme before an
    RSH process is created.)  The result was a hanging connection, as you
    described.
    
    I don't believe that any correction was made for V3.3, however, as we
    no longer support that release.  Robert (unfortunately) is out of the
    office for a while.  Please contact LASSIE::Natasha to inquire about
    the resolution.

    see also note 4749.2
    
    Ronald

    
    Hello,
    
    The UCX V3.3 is not supported any longer.
    
    To fix the reported RSH hanging problem 
    please install the ECO4 kit for UCX V4.1
    or the ECO5 kit for V4.0.