PM95181: ARFM CONTROLLER WAITS TO RECEIVE ALL ACK MESSAGES BEFORE SENDING THE ALLOC MESSAGES TO INCREASE THE ALLOCATION.

Fixes are available

APAR status

Closed as program error.

Error description

ARFM Controller waits for all Ack messages (for decreasing the
allocation) are received before sending the Alloc messages to
increase the allocation. If one of the gateway stop responding
the Alloc message, the ARFM controller waits the Ack until the
gateway is restarted.

This fix adds a cell custom property for an time out for the
waiting Ack message.  The property name is
"resetPendingAckTime", unit is milliseconds and  the default
isfor no timeout (-1).

Local fix

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n/a
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Problem summary

****************************************************************
* USERS AFFECTED:  WebSphere Virtual Enterprise Version 7.0.0  *
*                  users of Java Message Service               *
****************************************************************
* PROBLEM DESCRIPTION: The on demand router queues requests    *
*                      even if the CPU utilization does not    *
*                      reach the CPU overload protection       *
*                      setting.                                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The on demand router queues requests even if the CPU
utilization of the application servers does not reach the CPU
overload protection setting.
The autonomic request flow manager (ARFM) controller must
receive all ACK messages (for decreasing the allocation)
before sending the ALLOC messages to increase the allocation.
If one of the gateways stops responding to the ALLOC message,
the ARFM controller awaits the ACK message until the gateway
is restarted.

Problem conclusion

A new internal timeout function is implemented to reset the
ACK waiting condition, and to resume sending the ALLOC messages.
The fix for this APAR will be included in the next fix pack
for WebSphere Virtual Enterprise Version 7.0.0.

Temporary fix

Comments

APAR Information

APAR number
PM95181
Reported component name
WAS VIRTUAL ENT
Reported component ID
5725C9203
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-08-15
Closed date
2013-12-04
Last modified date
2013-12-04

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
WAS VIRTUAL ENT
Fixed component ID
5725C9203

Applicable component levels

R700 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSUP64","label":"WebSphere Virtual Enterprise"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 April 2022

Tips

PM95181: ARFM CONTROLLER WAITS TO RECEIVE ALL ACK MESSAGES BEFORE SENDING THE ALLOC MESSAGES TO INCREASE THE ALLOCATION.

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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