Poor Performance of WebServer PLUGIN Generation with many JEE Apps

Flash (Alert)


Abstract

WebServer plugin generation (either using the Admin Console or wsadmin scripting) will take significantly more time at the V8 and above versions than it did at the V7 and below versions, IF there are many JEE Applications installed.

Content

Versions Affected:
Versions 8.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6
Versions 8.5, 8.5.0.1, 8.5.0.2

Problem Description:
During Web Server plugin generation, the OSGi applications component must contribute information for the plugin.
In order to do this the OSGi applications component needs to iterate over all the applications installed, but it is only interested in OSGi applications and not JEE applications.
There is no way for it to distinguish between the two types prior to reading the data from the disk which can be time consuming.
If there are many JEE applications a significant overhead is incurred by reading JEE applications from disk when that data is of no interest to OSGi applications.

Solution:
Applying Interim Fix APAR PM76982, which delivers a fix to the WebSphere code that improves the performance of plugin generation by enabling OSGi applications to read only OSGi application data
from disk.


For IBM WebSphere Application Server for ALL Platforms (Distributed; z/OS, and IBM i):

For V8.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6

  • Apply Interim Fix APAR PM76982
    • If fix is needed now, please open PMR requesting the iFix. This FLASH will be updated with a link to the iFix when it is available externally.
      --OR--
    • Apply the WebSphere Application Server PTF group which includes Fix Pack 8.0.0.7 or later.
For V8.5, 8.5.0.1, 8.5.0.2
  • Apply Interim Fix APAR PM76982
    • If fix is needed now, please open PMR requesting the iFix. This FLASH will be updated with a link to the iFix when it is available externally.
      --OR--
    • Apply the WebSphere Application Server PTF group which includes Fix Pack 8.5.5.1 or later.

Cross reference information
Segment Product Component Platform Version Edition
Application Servers WebSphere Application Server Hangs/Performance Degradation AIX, HP-UX, IBM i, Linux, Mac OS, Solaris, Windows, z/OS 8.5, 8.0

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Document information


More support for:

WebSphere Application Server for z/OS
Hangs/Performance Degradation

Software version:

8.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.5, 8.5.0.1, 8.5.0.2

Operating system(s):

z/OS

Reference #:

1638304

Modified date:

2013-06-06

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