PI52071: INTELLIGENT MANAGEMENT ENABLED WEBSPHERE HTTP PLUGIN, LIMIT EXCESSIVE MEMORY GROWTH VIA CUSTOM PROPERTY.

8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• Add a custom property for the Intelligent Management web server
  Plug-in daemon process which will recycle the process when a
  REST service request/response limit is reached.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server using Intelligent Management (IM)    *
  *                  enabled WebSphere Plug-in                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Memory growth of the daemon process     *
  *                      due to process aging, causes excess     *
  *                      consumption of memory.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Intelligent Management enabled WebSphere Plugin may show
  memory growth over time.  Limit the aging by capping the
  number of IM configuration updates. This is similar to the
  Apache Http server directive MaxRequestsPerChild. Once the
  limit is reached the daemon process will restart
  transparently.
  

Problem conclusion

• Intelligent Management Enabled WebSphere Plug-in was changed
  to allow the daemon process to refresh at an interval set via
  custom property "MaxRequestsPerDaemon".
  
  The new custom property "MaxRequestsPerDaemon" is set via the
  adminstrative  console.
  Navigate to Middleware servers > webserverA > Intelligent
  Management >  Intelligent management plug-in properties.
  
  Create a new property with name "MaxRequestsPerDaemon" and an
  integer value.  This integer value is an estimate of the
  number of management requests per day x number of days for the
  intended daemon lifetime.  For example, if on average the
  number of management actions on an average day is 325 and 7
  days is the desired lifetime for the daemon;  the value
  is 2275 = 7 * 325.  Be aware that the default timeout for idle
  management requests is 5 minutes.  This means that if there
  are no servers stopping or any other management activity the
  lower limit for a daily request count is 288.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.9.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP