PH66925: MQ PANEL DISPLAYS THE INCORRECT CHANNEL STATUS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A user reports that a RCVR channel (with a name at least 20
  characters long) was returned incorrect status when displayed
  from the MQ panels; however, the DISPLAY CHSTATUS returned the
  correct channel status value. Development finds, when displaying
  channels in the MQ panels, the code issues both a DISPLAY
  CHANNEL and DISPLAY CHSTATUS command for the input channel name.
  For each channel returned from the DISPLAY CHANNEL command, the
  output from DISPLAY CHSTATUS is searched for any matches. If a
  channel doesn't have a matching status entry, then it is
  displayed as INACTIVE. The problem is a bug in the logic in
  CSQORLST when searching for a matching STATUS(STOPPED) entry for
  a channel name which is 20 characters long.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 2 Modification 0, Release 3          *
  *                 Modification 0 and Release 4 Modification 0. *
  ****************************************************************
  * PROBLEM DESCRIPTION: When viewing channel information in the *
  *                      MQ panel, shared channels with names at *
  *                      the maximum allowed length (20          *
  *                      characters) are incorrectly shown with  *
  *                      a status of INACTIVE, even though they  *
  *                      may actually be STOPPED.                *
  ****************************************************************
  This issue arises from a bug in the internal logic of the
  CSQORLST module. When matching channel names between the DISPLAY
  CHANNEL and DISPLAY CHSTATUS commands, the system constructs a
  key using the full 20-character channel name and appends the
  status directly. This causes the comparison logic to treat the
  entire string as a single word. As a result, the channel name
  fails to match correctly and displays the channel status as
  INACTIVE. This behavior only occurs when the channel name is
  exactly 20 characters long. For shorter names, a space naturally
  separates the name and status, allowing the comparison to work
  as expected.
  

Problem conclusion

• This APAR modifies the comparison logic to not treat the channel
  name and status as the same word given a max character length
  channel name.
  

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:

  UO05347 UO05371 UO05373

Modules/Macros

• CSQORLST
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R200 PSY UO05347

     UP25/11/12 P F511

• R300 PSY UO05373

     UP25/11/12 P F511

• R400 PSY UO05371

     UP25/11/12 P F511

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.