Re: [infinispan-dev] Hot Rod - pt2
A few comments:
- Why do you have OpCode in your response header? Surely this is redundant? If the
client is sync, it knows what it sent. If it is async, it has a message ID.
- 'Not So Dumb' and 'Clever' response headers should be optional? Surely
this stuff is only sent when there is a topology change? We also may need some extra info
here - how does the back-end know to send this info? If a client hits different back-end
nodes, and there is a topology change, how does Node A decide that it should not bother
with topology info since the client already hit Node B after the topo change and has the
new topology map? Perhaps a TopologyVersion (== JGroups View ID) should be sent back with
any topo map, and the client would send it's current TopologyVersion with every
request (non-dumb clients only)? Could be a vlong...
Cheers
Manik
On 14 Dec 2009, at 20:08, Galder Zamarreno wrote:
Hi all,
Re: http://community.jboss.org/wiki/HotRodProtocol
I've updated the wiki with the following stuff:
- Renamed replaceIfEquals to replaceIfUnmodified
- Added remove and removeIfUnmodified.
- Added containsKey command.
- Added getWithCas command so that cas value can be returned. I decided
for a separate command rather than adding cas to get return because you
don't always want cas to be returned. Having a separate command makes
better use of network bandwith.
- Added stats command. JMX attributes are basically accessible through
this, including cache size.
- Added error handling section and updated status codes.
Note that Mircea added some interesting comments and I replied to them
directly in the wiki.
Still remaining to add:
- Commands: putForExternalRead evict, clear, version, name and quite
commands.
- Passing flags.
Regards,
p.s. Updating this has been quite a struggle due to F12 + FF 3.5.5
crashing at least 5 times, plus parts of the wiki dissapearing after
publishing them!
--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache
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--
Manik Surtani
manik(a)jboss.org
Lead, Infinispan
Lead, JBoss Cache
http://www.infinispan.org
http://www.jbosscache.org