PQ86139: THIS APAR ADDRESSES DEFECTS IN WEBSPHERE APPLICATION SERVER V5.0 FOR Z/OS.

 A fix is available

Obtain the fix for this APAR



APAR status
Closed as program error.

Error description
This APAR addresses defects in WebSphere Application Server
V5.0 for z/OS.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V5.0 for z/OS                                *
****************************************************************
* PROBLEM DESCRIPTION: APAR PQ86139 addresses various defects  *
*                      in WebSphere Application Server V5.0    *
*                      for z/OS:                               *
*                                                              *
*                      (MD18759) Fully support the flush()     *
*                      interface. Fully support the AFPA/FRCA  *
*                      ECA(External Cache Adapter).            *
*                                                              *
*                                                              *
*                      (MD19495) Abend 0C4 reason code 4 in    *
*                      controller when stopping server.        *
*                                                              *
*                      (MD19568) NullPointerException when an  *
*                      Http Request is received and there are  *
*                      no applicaations installed in the Web   *
*                      Container                               *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
APAR PQ86139 addresses the following defects in
WebSphere Application Server V5.0 for z/OS:

(MD18759) The Web Container did not support the flush()
interface. It continues to buffer the output and does not send
it until the request is complete. The Afpa ECA was only
functional for 1 Servant Region. The first Servant Region to
come up would listen on the specified port, while all other
Servant Region's would fail attempting to bind to the same port.

(MD19495) ABEND0C4/ABENDS0C4 reason code 4 on the http large dat
outbound response thread in the RestartThreadRtn method when
trying to update the restart count array. The restart count arra
does not have enough entries.

Dump Title=COMPON=WEBSPHERE Z/OS,  COMPID=5655I3500,
ISSUER=BBORLEXT,ABEND IN BBOBOA  /UNKNOWN

(MD19568) The Web Container does not initialize when there are
no web applciations installed. this is normal behavior. If an
http request is then directed at the Web Container, a Null
Pointer Exception is thrown by HttpRequest because the Web
Container Transports list has not yet been initialized.
Problem conclusion
APAR PQ86139 fixes various defects in WebSphere Application
Server V5.0 for z/OS.

(MD18759) The Web Container has been changed to support the
flush() call.

In addition, a new Custom Property has been added to allow for
defaulting the response buffer size threshold at which the Web
Container will initiate an automatic flush. This Custom Property
is called "ResponseBufferSize", and takes as its value a
positive integer which denotes the number of bytes the size
of the default buffer is to be. This Custom Property can be set
at the WebContainer level and it will appliy to all Transports,
or it can be set on each Transport individually. In the absence
of this Custom Property being set, the Transport default
response buffer size is 32K bytes. The value set by this Custom
Property can be overridden at the individual servlet level with
the setBufferSize() API method.

In addition the Web Container has been changed to allow multiple
Servant Regions to drive AFPA responses through the ECA. There
are no changes to externals with the addition of this support.

Defect fix MD18759 shipped APAR PQ86139 requires the following
change to documentation:

NOTE: Periodically, we refresh the documentation on our
Web site, so the changes might have been made before you
read this text. To access the latest on-line
documentation, go to the product library page at:

www.ibm.com/software/webservers/appserv/zos_os390/library.html

The following description of the new custom property,
"ResponseBufferSize," will be added to the V5 Information
Center article "Web container custom properties:"

ResponseBufferSize

The value specified for this custom property denotes the size,
in bytes, of the initial buffer allocation for the response
buffer. When the buffer fills up, a flush for this buffer space
will automatically occur. This property can can be set at the
Web container level or it can be set for each individual
transport. If it is set at the Web container level, it will
apply to all transports affiliated with that Web container.

If a value is not specified for this property, the default
response buffer size of 32K bytes is used.

(MD19495) Changed arrays in bbootrd.h to have enough entries.

(MD19568) The Web Container has been changed to detect the
absence of the Transports list and respond with a message
indicating an invalid request.

APAR PQ86139 is associated with SERVICE LEVEL W502005 of
WebSphere Application Server V5.0 for z/OS.
Temporary fix Comments
APAR information
APAR number PQ86139
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 2004-03-16
Closed date 2004-03-26
Last modified date 2004-04-03

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:
UQ86666

Modules/Macros
BBOBOA BBOCASHS BBOCASYD BBOCASYE BBOCASYH BBOCASYS
BBOCCFMT BBOCCINS BBOCEIOP BBOCESES BBOCGIOP BBOCHS
***This field was truncated. To obtain
the full apar record, please contact
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Publications Referenced

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

Applicable component levels
R500 PSY UQ86666    UP04/03/31 P F403

  Fix is available
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Document Information


Current web document: swg1PQ86139.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 #: PQ86139
IBM Group: Software Group
Modified date: Apr 3, 2004