Java paramters: Could not reserve enough space for object heap

[Former Member]

Hi!

I am upgrading a SAP ERP 6.0 system to EhP4. Therefore a additional shadow instance (e.g. 02) will be installed.

Now when I start all the three sap instances (00 (Java), 01 (ABAP) and 02 (shadow)) the java stack does not start due to space bottleneck with the error:

Could not reserve enough space for object heap

Question:

What is the procedure to change this space parameters for java stack (Config Tool)?

What are the recommended parameter?

Thank you very much!

regards

[Former Member · Accepted solution]

Jgen,

Please refer to following link.

[https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=835704]

Hope this helps.

Manoj Chintawar

[Former Member]

Hi

Please check if the following link helps:

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e09e4a5e-8280-2a10-ca98-a59dd47d...

Regards

Chen

[Former Member]

Hi

what is the current value of Heap memory

-Xmx check the value in Config tool

Also refer to Note 696410(in this refer to section Heap Memory)this will be useful and you need to perform all these changes through Config tool only

Rohit

[Former Member]

Hi!

Many thanks for your reply.

I have the following settings:

Config Tool --> Cluster data --> server_ID<1576650> --> General --> Java parameters --> -Xms1024M

Config Tool --> Cluster data --> dispatcher_ID<1576600> --> General --> Java parameters --> -Xms374m

I am currently on SAP Web AS 7.00 and executing a upgrade to SAP Web SAP 7.01.

Question: Should I change these settings? If yes, how?

Thank you very much!

regarsds

[Former Member]

change the values for -Xmx and -Xms to 512

you can do this by config tool,follow the method in note 1303953 to do this

Rohit