Heap Memory in SAP J2ee 7.3

[Former Member]

Hi,

I am currently working with Portal on 7.3.

I was asked by SAP to increase number of server nodes to 2 from 1.

Initially my Instance heap memory was 4GB with one server node.

I have just changed the number of server nodes to 2 and restarted my system.

Now there are 2 server nodes both are working fine.

But my doubt is whether my system is now allotted 4 GB heap per Server node or is it for the entire instance ,that is 4GB is for both server nodes.

Unlike 7.0 we can't see server node VM setting in configtool.

Kindly help me understand the memory distribution in 7.3

Regards

Dheeraj Nathani

[Former Member · Accepted solution]

Hi,

@Rishi .You are correct ..the server node inherits the properties of instance parameter.

I have checked in instance.properties and two node entries are visible there and both have been assigned 4GB heap.

Thanks and Regards

Dheeraj

[AtulKumarJain]

Hi Dheeraj,

Please check

http://scn.sap.com/docs/DOC-7284

SAP note Note 1551721 - Performance Tuning of Enterprise Portal 7.30

BR

Atul Jain

[Former Member]

Hi,

Please check the below url.

http://help.sap.com/saphelp_nwce10/helpdata/en/43/73949862c16fcbe10000000a1553f6/content.htm

Now what do you see in the configtool for the parameter maxHeapSize.

But my doubt is whether my system is now allotted 4 GB heap per Server node or is it for the entire instance ,that is 4GB is for both server nodes.

Its per server process. To see the setting you have to go in config tool try to change to export mode and see what it shows.

Thanks

Rishi Abrol

[Former Member]

You can also see the details once you run the telnet tool.

telnet localhost 5XX08

>INFO

this will show you the used and the Total memory available and Current memory usage

Thanks

Rishi Abrol

[Former Member]

Hi,

As per telnet total memory available is approx 4GB ..so can we say that Instance memory available is configtool is distributed among Server nodes ....and it is not per server node.

Regards

Dheeraj

[Former Member]

Hi,

No i dont think that you are correct.Its per node.

I dont have dual node . I will try to add a node and see the memory using top or glance in unix or task manager in windows to see how much each node is taking.

Thanks

Rishi Abrol