PI65253: LOOP IN CPIR TRANSACTION WHILE INSTALLING PIPELINE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When CICS TS installs a pipeline for TN3270 users, the region
  hangs.  If the transaction is purged, a CEMT display shows that
  the pipeline is in "Being Enabled' status.
  
  Looking at the SYSTRACE of a dump gathered at the time of the
  error reveals a loop that occurs in a range of addresses
  between offsets x'6674' and x'6978' in DFHPIPL.
  
  The stack for the transaction shows that CICS is performing
  function CREATE_PROVIDER_PIPELINE.
  
  Examination of the pipeline configuration shows that there is a
  transport element with a single null value for the
  default_transport_handler_list, although the xml contains valid
  matched start and end tags.
  
  
  
  Additional Symptom(s) Search Keyword(s): KIXREVEAA
  

Local fix

• Correct the transport element to contain a valid non-null
  default_transport_handler_list, or remove it entirely if there
  is a valid service element.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: Loop in DFHPIPL when installing a       *
  *                      PIPELINE.                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A PIPELINE configuration XML file contained the following valid
  <transport> element:
                                                                 .
  <default_transport_handler_list/>
                                                                 .
  This is empty element. When the pipeline was installed,
  transaction CPIR ( Pipeline Resolution transaction ) was invoked
  and this drove DFHPIPL which performed XML validation.  It
  detected the element as being empty but did not index to the
  next element.  Instead it looped, repeatedly checking the same
  element.
                                                                 .
  The same behaviour may also occur for the following empty
  ( but valid ) <transport> XML elements:
                                                                 .
  <default_http_transport_handler_list/>
  <default_mq_transport_handler_list/>
                                                                 .
  Keywords: msgDFHPI0720 PI0720
  

Problem conclusion

• DFHPIPL has been modified to correctly process the
  aforementioned empty <transport> XML elements.
                                                                 .
  In addition, this APAR also suppresses a DFHPI0720 configuration
  error message when installing a config file containing a
  <named_transport_entry> that does not have a <handler> element.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  PI67049 UI40177

Modules/Macros

• DFHPIPL
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R900 PSY UI40177

     UP16/08/26 P F608

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.