Hi Paul, I would like to echo Hua's and John's concern about 5xx code uses. Using 3xx codes should be fine. Can you give a sufficient argument to consider 5xx?
Thanks, -peter On Mon, Jun 3, 2013 at 5:49 AM, Hua ZZ Zhang <[email protected]> wrote: >>> 2) The basic idea is that an object server (via middleware or otherwise) >>> will be given the ability to respond to a request to indicate ‘not me but I >>> know who should handle this’. I’m thinking this makes more sense as a 5xx >>> response with additional information (partition, nodes) about the route >>> included in the response body (as opposed to a 3xx code) > > My concern is that 5xx response is a kind of error that occurs on server > side. The server can't handle the client request > due to internal error (500), not implemented (501), bad gateway(502), > service unavailable(503), gateway timeout(504) > or http version not supported(505). It doesn't make much sense to use it in > your context of 'not me but I know who should handle this’. > > I'm also curious about how could this happen if the object URL is the unique > identity. How does the server exactly know what client > request is another object? Based on what kind of information? > > Edward Zhang(张华) > Advisory Software Engineer > Software Standards & Open Source Software > Emerging Technology Institute(ETI) > IBM China Software Development Lab > e-mail: [email protected] > > > "Luse, Paul E" ---2013-06-01 上午 07:53:21---"Luse, Paul E" > <[email protected]> > > "Luse, Paul E" <[email protected]> > Sent by: "Openstack" > <[email protected]> > > 2013-06-01 上午 07:53 > > > To > > "[email protected]" <[email protected]>, > > > cc > > > Subject > > [Openstack] [Swift] Storage Server Redirection > > > I’m looking at tacking this item: > > > > https://blueprints.launchpad.net/swift/+spec/support-storage-server-redirects > > > > and wanted to get some feedback on the following observations/thoughts: > > > > 1) This is a capability that would be checked in independent of other > blueprints that might use it (2 are mentioned in the link above) and unit > test code would be the only way to initially exercise it; it essentially > enables other activities at this point > > > > 2) The basic idea is that an object server (via middleware or otherwise) > will be given the ability to respond to a request to indicate ‘not me but I > know who should handle this’. I’m thinking this makes more sense as a 5xx > response with additional information (partition, nodes) about the route > included in the response body (as opposed to a 3xx code) > > > > 3) The proxy server will be modified to process the response accordingly but > using the partition, nodes info from the response as opposed to > object_ring.get_nodes() to determine which nodes to use > > > > 4) Protection will be required to avoid endless redirection loops > > > > 5) This applies only to GET operations > > > > Appreciate any thoughts/feedback., In addition to the two usages of this > capability referenced in the blueprint I think there’s applicable to another > Tiering blueprint which interests me as well. > > > > Thanks > > Paul > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > > > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
