PH34892: SCI REGION ISSUES CSL3070I FOR REGISTERED MEMBER SPORADICALLY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In current SCI registration process, after the registration
  is done in the SCI regions, the final step in the client is
  to post an SRB to reset the Registration In Process flag in
  its address space. But if this did not occur until after two
  CSL3070I messages had been issued for that member, the member
  would be removed from the other SCI's member lists.
  As a result, a registered client been discarded from the list
  in the SCI regions. This is incorrect.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  *   All IMS 15 SCI users.                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  *   MSGCSL3070I messages issued before member mentioned in     *
  * message is notified that the registration has completed.     *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  *   INSTALL CORRECTIVE SERVICE FOR APAR/PTF                    *
  ****************************************************************
    When SCI has completes the registration processing, it
  schedules an SRB in the registering member's address space. This
  SRB routine returns the results of the registration and POSTs
  the member.
  
    SCI has a process that keeps the member lists across the
  IMSplex in synch. A list of local members is sent to the other
  SCIs periodically. The other SCIs compare this list with what it
  has for members on that LPAR.  If the SCI has a member on that
  LPAR that is not on the list, it marks that member and issues
  CSL30370I.  If the member is not on the next list that is
  received, the member is deregistered.
  
    When the list of local members is created, members are not
  include if they are deregistered, had a registration error, are
  marked as gone, or registration is in progress.  The
  registration in progress flag is turned off after the member is
  POSTed at the end of registration.
  
    In the reported case, a member registered and all SCIs in the
  IMSplex processed the registration, The local SCI scheduled the
  SRB to POST the registering member,  However, the SRB was not
  dispatched for about 40 seconds.
  
    During the 40 seconds the SRB was waiting to be dispatched,
  that SCI generated and sent the member list twice.  Since the
  SRB had not run to POST the new member, it was not included in
  either list.  When the other SCIs processed the second list,
  they removed the new member since it was not in two consecutive
  lists.
  
    If the registration in progress is ignored, the CSL3070I
  message would not be issued since the new member would be
  included in the list, even if registration had not completed.
  
    While diagnosing this problem, the max members that can be
  included in the dump formatter Summary List was hit.  This
  prevented all the members of the IMSplex to be included.  The
  dump formatter change to display all the members is included
  with this APAR.
  

Problem conclusion

•   Remove the check for registration in progress when building
  the member list.
  
  
    Modify the member summary dump formatter to ensure all member
  are included.
  
  
  
      Modules Changed
  
      ===============
  
  
  
      CSLSFM20
  
        Ensure all members are included in the summary list. Add
  LPAR and IMSplex counts.
  
  
  
      CSLSTRF0
  
        Remove the check for registration in progress when build
  the member list.
  

Temporary fix

Comments

APAR Information

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

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

  UI74687

Modules/Macros

• CSLSTRF0 CSLSFM20
  

Fix information

• Fixed component name

  IMS V15

• Fixed component ID

  5635A0600

Applicable component levels

• R500 PSY UI74687

     UP21/04/01 P F103

Fix is available

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