IV62585: TEBS: PIPE PORT ALLOCATION / EADDRINUSE, EADDRNOTAVAIL

IBM Tivoli Monitoring 6.3.0 Fix Pack 3 (6.3.0-TIV-ITM-FP0003)

APAR status

• Closed as program error.

Error description

• Problem Description:
  Tivoli Monitoring agents fail to connect to the Monitoring
    server without attempting to retry the failing bind operation
    using the next derived port in the range of ports. This
    results in an agent connection failure with no attempt to
    retry the connect.  This defect is observed most frequently on
    z/OS but can occur on all Tivoli Monitoring supported
    platforms.
  
  Detailed Recreation Procedure:
    This can be recreated by configuring Tivoli Monitoring agents
    on z/OS and watching connection establishment behavior
    when the first derived port is used by SYSPLEX or other
    products. The observed behavior changes when the reservation
    is moved to the second derived port and the agents are
    re-started.
  
  Related Files and Output:
    RAS1 tracing with KDC_DEBUG=Y and KDE_DEBUG=Y will show
    IP.PIPE and IP.SPIPE port allocations retry local binds which
    fail with error EADDRINUSE. When the error is not EADDRINUSE,
    no attempt is made to retry the bind with the next available
    derived port.
  

Local fix

• Use SKIP: to avoid the offending port(s)
  

Problem summary

• IP.PIPE PORT ALLOCATION fails correctly for error EADDRINUSE,
  and fails incorrectly for error EADDRNOTAVAIL.
  

Problem conclusion

• Tivoli Monitoring agents fail to connect to the Monitoring
  server without attempting to retry the failing bind operation
  using the next derived port in the range of ports.  This results
   in an agent connection failure with no attempt to retry the
  connect.  This defect is observed most frequently on z/OS but
  can occur on all Tivoli Monitoring supported platforms.
  
  
  The fix for this APAR is contained in the following maintenance
  packages:
  
    | fix pack | 6.3.0-TIV-ITM-FP0003
  

Temporary fix

• The code was changed to respond correctly to both error
  conditions, EADDRINUSE and EADDRNOTAVAIL.
  

Comments

APAR Information

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

  OA44344

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

Fix information

• Fixed component name

  TEMS

• Fixed component ID

  5724C04MS

Applicable component levels

• R630 PSY

     UP