[OAI-implementers] How many records should typically be returned over OAI-PMH?

Baden Hughes badenh at cs.mu.OZ.AU
Wed Feb 2 05:51:15 EST 2005

OAI-PMH has a flow control mechanism [1], which, if followed, allows the 
use of a resumptionToken for handling larger data sets. This is widely 
implemented in OAI tools.

[1] http://www.openarchives.org/OAI/2.0/openarchivesprotocol.htm#FlowControl


On Wed, 2 Feb 2005, Dan Stowell wrote:

> Hi,
> I'm implementing OAI-PMH and at first I decided that my system could easily 
> return 2000 records in a single OAI-PMH request. Unfortunately the "OAI 
> Repository Explorer" doesn't seem to be able to cope with that much data 
> since it ended up having timeout and too-much-data errors.
> I've now reduced that number to 500 and my repository now validates happily. 
> But is there a rule of thumb for how many records it's "polite" to return, or 
> how many a typical OAI-PMH harvester "expects" to have to deal with?
> Thanks
> Dan
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Dan Stowell
> Faculty Information Support Officer (Life Sciences), UCL
> http://www.ucl.ac.uk/is/fiso/lifesciences/
> Room B07A, Drayton House, 30 Gordon Street, London
> Phone: +44 (0)20 7679 5472      (within UCL: dial 25472)
> Email: d.stowell at ucl.ac.uk
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