PH25992: Under a high load, the ibm-cics-api Node.js module may lose requests

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Under a high load, the ibm-cics-api Node.js module may lose
  requests.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Under a high load, the ibm-cics-api     *
  *                      Node.js module may lose requests.       *
  ****************************************************************
  The ibm-cics-api NPM module is used to make a locally optimised
  call to a JSON web service. Under a heavy load requests may be
  lost due to an issue in the chaining of the requests.
  
  Requests may cause the target program to be called but the
  response is not returned to the Node.js application.
  Alternatively the target program may not be called.
  
  When looking at the SJ dump formatting for a Node.js application
  that is currently not processing any requests, the INFLIGHT
  counter is non zero.
  

Problem conclusion

• DFHSJQU has been updated to fix the chaining issue.
  
  Additional exception trace entries have been added to DFHSJNA
  and DFHSJNS.
  
  
  The Knowledge Center for CICS 5.5 and 5.6 will be updated to
  contain the trace entries added in the PTFs associated with
  PH25992. These changes are:
  
  Page 'JVM and Node.js runtime domain trace points' has the
  following new items added to 'Table 1. JVM and Node.js runtime
  domain trace points'.
  Point ID:SJ 140C
  Module:DFHSJNA
  Lvl:Exec
  Type:No shared lock
  Data: 1 - Node.js Bundle data
  
  Point ID:SJ 140D
  Module:DFHSJNA
  Lvl:Exec
  Type:No Node.js app
  Data: 1 - Node.js Bundle data
  
  Point ID:SJ 140E
  Module:DFHSJNA
  Lvl:Exec
  Type:LE enclave terminated
  Data: 1 - Node.js Bundle data
  
  Page 'Java trace points' has the following new item added to
  'Table 1. Java trace points'
  Point ID:AP 3800
  Module:DFHSJNS
  Lvl:Exec
  Type:Node.js pipeline error
  Data: 1 - SJNA parameter 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:

  UI72329 UI72330

Modules/Macros

• DFHAPJVM DFHAPTRY DFHAXIS2 DFHCDJNI DFHSJBD  DFHSJDM  DFHSJDS
  DFHSJDUF DFHSJIN  DFHSJIS  DFHSJIX  DFHSJJS  DFHSJL   DFHSJNA
  DFHSJNR  DFHSJNS  DFHSJNT  DFHSJQU  DFHSJRE  DFHSJRL  DFHSJRM
  DFHSJRT  DFHSJSC  DFHSJSM  DFHSJST  DFHSJTH  DFHSJTRI DFHSJXM
  DFJ@H356 DFJ@H360 DFJ@H427 DFJ@H467 DFJ@H468 DFJDTCOE DFJOUTRE
  DFJWLPBP DFJWLPPL
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R200 PSY UI72330

     UP20/10/30 P F010

• R300 PSY UI72329

     UP20/10/30 P F010

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.