PK72711: SIP TRAFFIC ON TCP FAILS UNDER LOAD

Fixes are available

APAR status

Closed as program error.

Error description

Sending TCP messages to the SIP (Session Initiation Protocol)
container at high load (100 calls per second) causes call
failures. The log prints either a NullPointerException or
an IllegalStateException.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  SIP (Session Initiation Protocol) users     *
*                  of WebSphere Application Server V7.0        *
****************************************************************
* PROBLEM DESCRIPTION: Transport failure in sending messages   *
*                      at a high call rate from the SIP        *
*                      (Session Initiation                     *
*                      Protocol) container using               *
*                      TCP/IP.                                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Under high load, the SIP container attempts to send multiple
messages over the same TCP/IP connection at the same time. The
channel does not support sending one message while another
outbound message is still pending. Attempting to send multiple
messages concurrently, on the same channel, causes a failure.
The symptom of the failure varies, but it always ends up with
the message being dropped instead of sent, followed by an
exception printout in SystemErr.log - either a
NullPointerException or an IllegalStateException.

Problem conclusion

The problem is fixed in the SIP (Session Initiation Protocol)
container code. The fix for this APAR is currently targeted for
inclusion in fixpack 7.0.0.1.
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 number
PK72711
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2008-09-24
Closed date
2008-10-27
Last modified date
2008-10-27

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
WEBSPHERE APP S
Fixed component ID
5724J0800

Applicable component levels

R700 PSY
UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
23 October 2021

Tips

PK72711: SIP TRAFFIC ON TCP FAILS UNDER LOAD

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R700 PSY

Document Information

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