PM65217: S026,REASON=08118001,CONNECTOR HANG ON IRLM LOCK STRUCTURE IXL040E IRLM NOT RESPONDING TO REBUILD REQUEST.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The rebuild request for the lock structure was queued because
  IRLM was processing a connect and set FENCE mode one member
  at a time. During this time a series of connection failures
  occurred. Also the connection failures got queued because
  the REBUILD was pending.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All HIR2220 (IRLM2.2) and HIR2230 (IRLM2.3)  *
  *                 users data sharing SYSPLEXDS.                *
  ****************************************************************
  * PROBLEM DESCRIPTION: IRLM failed to respond to the rebuild   *
  *                      quiesce event of the lock structure     *
  *                      causing the whole sysplex hung with     *
  *                      message IXL040E and ABEND=S026 with     *
  *                      REASON=08118001                         *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
     A series of New Connection events from peer members arrived.
  A co-exist rebuild was initiated causing most of the newly
  connected connectors to disconnect from the lock structure.
  This resulted in another series of Failed Connection events to
  be processed.
  
     IRLM put up the fence to serialize the global initialization
  process for each New Connection event, causing the Rebuild
  Quiesce QE to be queued behind the fence.  If the ID of the
  FailConn is different with the fence ID then the FailConn QE
  will be queue to the rebuild pending queue.  These FailConn
  QEs will be processed after the rebuild process completed.
  
     The New Connection QE was holding the fence waiting for
  response from the peer member.  The response was never returned
  because peer member has disconnected from the structure and its
  FailConn QE was stuck in the rebuild pending queue.  The rebuild
  process also could not continue because its Rebuild Quiesce QE
  was queued behind the fence.
  
     Without the response from the Rebuild Quiesce event, XES
  issued message IXL040E and abended S026 with reason 08118001.
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
     Code is modified to queue those failed connect QEs to the
  work-to-do queue instead of the rebuild pending queue when
  the failing member disconnect is done during global
  initialization.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

• ž**** PE13/08/12 FIX IN ERROR. SEE APAR PM94539  FOR DESCRIPTION
  

APAR Information

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

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

  UK79709 UK79710

Modules/Macros

•    DXRRL752 DXRRS752
  

Fix information

• Fixed component name

  IRLM V2

• Fixed component ID

  569516401

Applicable component levels

• R220 PSY UK79709

     UP12/07/08 P F207

• R230 PSY UK79710

     UP12/07/08 P F207

Fix is available

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