Error getting confirmation reply during attach to cluster

[Former Member]

Hi Experts,

Our portal system has an issue.

Symptoms are as follows

Portal response time increases and availability goes down (some times on peak load)

CPU utilization becomes 100% on application servers.

We try to restart the application instances 1 after another.

And we get following errors in std_serverX.out files.

while restarting the server 13 we are getting the Fatal Error :

Loading: ClusterManager ... Framework -> CriticalShutdown Error getting confirmation reply during attach to cluster.

Jan 11, 2010 4:20:11 PM com.sap.engine.core.Framework [ThreadThread-1,5,main] Fatal: Critical shutdown was invoked. Reason is: E

rror getting confirmation reply during attach to cluster.

Then we have to stop all application servers.

Then we restart the SCS instance.

After SCS restart,Portal starts normally without above error.

This happens only when there is performance issue.

if we try to restart the portal application servers 1 after another on week ends then it does not throw above error.

Kindly suggest how can I avoid above error while performing restart 1 after another.

It would allows us to maintain availability of portal while performing restart 1 after another.

Thanks and Regards,

Girish

[Former Member]

Hi,

There could be two reasons for this.

01. The network connectivity between central instance to application servers. Check the utilization and take corrective action.

02. Due to excess memory, your swap is taking more time in cleaning the heap size. Hence you can add more nodes or reduce excess memory.

As an work around, you can check the value of the following parameters and increase it to avoid the restart.

ms.notification.timeout and ms.confirmation.timeout

These parameters have to be set in configtool.

Pls let me know if this resolves your problem.

Regarsd,

Iyyappan M R

[Former Member]

Hi Is this resolved the issue ??

Thanks,

Krishna

[Former Member]

Hi

Would anyone help on this questions

Actually we are loosing our time in restarting the whole cluster ..

Thanks and Regards,

Girish

[Former Member]

Please help us to help you.

Kindly tell us a few details, like operating system and database version.

Don't let us guess that much .....

[Former Member]

Girish.

Increase your Heap memory and XmX and Xms parameters in Configtoll and test it .

If you give me more details about you system configuration and memory parameter values that would help us to give the hints.

Regards

Janakiram.