PH60104: IF THE BROKER STARTED TASK ID HAS UID 0 THEN BIPMQTT CAN FAIL TOSTART

APAR status

• Closed as program error.

Error description

• If the broker started task id is uuid 0 then bipMQTT incorrectly
  assumes this is an attempt to run as root on a Unix system and
  issues the warning message in the bipMQTT.txt output file:
  
  1706811083: Warning: Unable to drop privileges to 'mosquitto'
  because this user does not exist. Trying 'nobody' instead.
  1706811083: Error: Unable to drop privileges to 'nobody'.
  
  If the users "nobody" and "moquitto" do not exist, or the broker
  started task Id does not have authority to switch USS user
  context  then the bipMQTT process will fail to start.
  
  
  This in turn will cause Execution Groups to issue the
  following error:
  
  BIP4311E (Msg 2/2) AN MQTT PUBLISH USING
  'pubsub_AdminEvents_MQTT_localhost_11885_pubsubDefault' DETECTED
  AN EXCEPTION
  
  Facilities which require pub/sub will fail, for example web-ui
  statistics, record and replay etc.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM Integration Bus version 10.1.0.2 or 10.1.0.3 on
  z/OS.
  
  
  Platforms affected:
  z/OS
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  If the broker started task id is uuid 0 then bipMQTT incorrectly
  assumes this is an attempt to run as root on a Unix system and
  issues the warning message in the bipMQTT.txt output file:
  
  1706811083: Warning: Unable to drop privileges to 'mosquitto'
  because this user does not exist. Trying 'nobody' instead.
  1706811083: Error: Unable to drop privileges to 'nobody'.
  
  If the users "nobody" and "moquitto" do not exist, or the broker
  started task Id does not have authority to switch USS user
  context  then the bipMQTT process will fail to start.
  
  
  This in turn will cause Execution Groups to issue the following
  error:
  
  BIP4311E (Msg 2/2) AN MQTT PUBLISH USING
  'pubsub_AdminEvents_MQTT_localhost_11885_pubsubDefault' DETECTED
  AN EXCEPTION
  
  Facilities which require pub/sub will fail, for example web-ui
  statistics, record and replay etc.
  

Problem conclusion

• The bipMQTT process no longer fails to start if the broker
  started task ID has UID 0.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.1      10.1.0.4
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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:

Fix information

• Fixed component name

  INT BUS FOR Z/O

• Fixed component ID

  5655AB110

Applicable component levels