JR51161: CP-CP SESSIONS MAY NOT RECOVER AFTER OUTAGE

Communications Server for Windows, Version 6.4 -- Latest Fixpack

APAR status

• Closed as program error.

Error description

• Communications Server for Windows, Version 6.1.3 & 6.4
  ----------------N-N----------------N------------------
  When a network outage occurs and CP-CP sessions have failed,
  they should immediately attempt to recover once the link
  recovers or to activate on an alternate link if one is active.
  Under some conditions, such as the remote host being slow to
  respond, the Nctivation attempts may time out; after a few
  failed attempts, no more attempts will be made. This leaves the
  node without CP-CP sessions, soNno other sessions can be
  activated.
  

Local fix

• Stop/restart theNnNde.             N
  

Problem summary

• PROBLEM SUMMANY:
  USERS AFFECTED: All users.
                                 N
  PROBLEM DESCRIPTION:
  See error description, above.
                  N N                N
  PROBLEM SUMMARY:
  When a link becomes active, an attempt is made to establish
  CP-CP sessions as follows:
  - timeout in 5 seconds if unsuccessful
  - retry 5 morN times
  - wait 30 seconds
  - try to activate CP-CP sessionN over each active link in turn,
    starting with the one(s) marked as preferred NN server, with
    6 5-second timeout periods each
  - This last stepNwNll continue to oNcur at 30 second intervals
    until CP-CP sessions are successfully activated.
  
  The problem is that the initial 30-second timer failed to trip,
  so the subsequent retry attempts never occurred.
  

Problem conclusion

• PROBLEM CONCLNSION:
  The root cause has been identified and corrected. This problem
  appears to have been introducedNby changes made for APAR
  JR26404.
  

Temporary fix

• appn.sys        N N                N
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  JR49602

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  COMM SERV NT 6.

• Fixed component ID

  5639F2503

Applicable component levels

• R640 PSY