> We've created a sapdb which handle 500 transations per second 
> (combination of inserts/updates/deletes) it handles it for 
> about 15-20 minutes and then freezes with no error messages.  
> We've verified that we have not run out of disk space, dev 
> space, log file space, memory and cpu usage.

- Which version are you using (7.3 or 7.4)?
- what's the output of "dbmcli -u <controluser,controlpw> <SID> show active"
when the DB 'hangs'

The only thing I can imagine (beyond a software bug) is some deadlock that's
not detected or you're running out of DB locks. Is there something in
knldiag or knldiag.err when it's hanging?

> Is there a limitation on how many (simple -- no joins) 
> transactions per second can be applied?  We need to get it up 
> to 2000 per second.  We've only started testing with sapdb 
> and have limited knowledge of the parameters.

There's nothing like a "soft limit". It depends on how you have built your
DB, how many devspaces you have (one big or several little ones), how big
your DATA_CACHE/CACHE_SIZE is and other things. Can you sum your config
here, probably someone has some ideas what you can try.


Greetz,

SIEGENIA-AUBI KG
Informationswesen
 
i.A.
 
Markus D�hr
SAP-CC/BC, SAPDB-DBA

Tel.:    +49 6503 917-152
Fax:     +49 6503 917-7152
E-Mail: [EMAIL PROTECTED]
Internet: http://www.siegenia-aubi.com  
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