PQ92052: I/O AND CPU USAGE AT IDLE TIME FOR WEBSPHERE APPLICATION SERVER DEPLOYMENT MANAGER V5.0 FOR Z/OS

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APAR status
Closed as program error.

Error description
While idle, the Deployment Manager for WebSphere Application
Server v5.0 for z/OS uses I/O and CPU time. Investigation of
this via an OMVS component trace shows that the Deployment
Manager is attempting to reload FileTransferServlet.class every
few seconds, regardless of what the reload setting is at the
admin console for the filetransfer application.
Local fix
at the admin console, click on the file transfer servlet
application, click on the 'Reload Enabled' checkbox and
set the 'Reload Interval' to 0, save and sync.
Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V5.0 for z/OS                                *
****************************************************************
* PROBLEM DESCRIPTION: CPU usage high when Deployment Manager  *
*                      is idle. The file system is scanned     *
*                      every 3 seconds for the                 *
*                      FileTransferServlet as indicated by     *
*                      CTRACE for OMVS.                        *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The Deployment Manager attempts to reload the
FileTransferServlet every 3 seconds based on the default
reloadEnabled property of the FileTransfer Application.
The application ear is missing the ibm-web-ext.xmi deployment
descriptor file where this property as well as the reload
interval can be configured. The properties default to reload
enabled set to true and reload interval to 3 seconds.
Problem conclusion
The file transfer application is an administration application
and does not need to be reloaded. This fix adds the
ibm-web-ext.xmi descriptor file with the properties
reloadEnabled=false and reloadInterval=0
Also fixed a problem with the postinstaller script that updates
the administrative console application. The ear file to restore
to on the backout path will be picked from the backup directory
instead of the installableApps directory.

APAR PQ92052 is associated with SERVICE LEVEL W502016 of
WebSphere Application Server V5.0 for z/OS.
Temporary fix Comments
APAR information
APAR number PQ92052
Reported component name WEBSPHERE FOR Z
Reported component ID 5655I3500
Reported release 500
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Special Attention NoSpecatt
Submitted date 2004-07-27
Closed date 2004-10-07
Last modified date 2004-11-02

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:
PQ96630

Modules/Macros
BBOUBINF          

Publications Referenced

Fix information
Fixed component name WEBSPHERE FOR Z
Fixed component ID 5655I3500

Applicable component levels
R500 PSY UQ93769    UP04/10/15 P F410

  Fix is available
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Document Information


Current web document: swg1PQ92052.html
Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 500
Software edition:
Reference #: PQ92052
IBM Group: Software Group
Modified date: Nov 2, 2004