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Syncronization of Shared Memory objects

Former Member

‎2009 May 01 3:51 PM

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1,094

Hi,

Does Shared Memory objects gets synchronized between Application Servers. If so , what is the parameter that sets the sync. time.

Thanks,

Arpitha.

2 REPLIES 2
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MarcinPciak
Active Contributor

‎2009 May 01 4:09 PM

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721

Hi,

Shared memory is server dependant, so there is one independent memory per Application Server. You can only access it from the applications running on that server.

Regards

Marcin

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GrahamRobbo
SAP Mentor
SAP Mentor

‎2009 May 02 5:58 AM

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Hi Arpi,

check the documentation on this as I am working from memory, but I think what you need to do is set the Shared Memory Area as "Transactional".

This means that when you do a DETACH_COMMIT, you need to follow it up with a COMMIT WORK. I seem to recall this somehow flags the Shared Object for reload (this flag is stored in DB) so that the next access of the Shared Object - no matter which application server it is located on - will force a reload which means the Shared Object will be initialised identically on all servers.

I do not believe there is a way to "synchronise" instances of the same Shared Object running on different application servers.

I suggest you test this to see exactly how it works. It would make a great blog - hint.

Cheers

Graham Robbo