infinispan usage

[Paul Hethmon]

Chad,


Thanks for the feedback.

I've been working with the 5.0 release (which just came out last month).
I'm not sure if it's my LAN set up or the default configuration files they
provide, but it's been a pain getting multicast working properly. It is
the first time I've every spelled multicast though. Just things like
having to tell the JVM to prefer IPv4 and adjusting the ip_ttl property
just to get my 2 macs to talk.

The coding part of it looks pretty straightforward, the config part has
about a zillion options.

Once I get it working, I'm planning on putting it out for everyone.

thanks,

Paul


On 9/7/11 11:16 AM, "Chad La Joie" <lajoie at itumi.biz> wrote:

>Hey Paul,
>
>Well, let me give a caveat upfront.  I haven't done any testing with
>the latest version (v5) of infinispan.  I did a fair amount of test
>with v3 (called JBossCache then) and some testing with v4 in order to
>explore what was new.  I did not have any issues with replication but
>my tests were not very deep either.
>
>Now, to answer your specific question.  It was my intention to ship
>with two different configs.  One based on synchronous replication and
>another based on async distribution.  The former being appropriate for
>systems where max availability and no mid-process loss of users was
>required.  The later being appropriate for systems  where mid-process
>user state might be lost in favor of greater scalability (though
>realistically, I don't know that anyone runs such a large IdP cluster
>that synch repl would lead to bottlenecks).
>
>In addition to that, I am also going to attempt to develop a
>cookie-based state storage mechanism for our front-channel protocols.
>That would mean that people willing to forgo artifacts, attribute
>query, and logout support wouldn't need any clustering mechanism.  I
>don't know if I'll be able to pull this off though, I have a feeling
>I'll run in to problems with cookie sizes, but we'll see.
>
>
>On Wed, Sep 7, 2011 at 11:05, Paul Hethmon
><paul.hethmon at clareitysecurity.com> wrote:
>> Chad,
>> I'm in the midst of writing a storage service replacement for IdP 2
>>using
>> Infinispan. Writing a replacement is based solely on my continued
>>trouble
>> with Terracotta while the choice of Infinispan is based on your
>>comments on
>> IdP 3. My question is whether you have given thought to the cluster
>>mode to
>> use? In my initial testing, I'm having a problem getting replication
>>mode
>> working, it just hangs when a second member joins the cluster.
>>Distribution
>> mode seems to work just fine though. There is a bug filed for
>>replication
>> mode when running 2 members on the same host for Infinispan, so not
>>quite
>> what I'm seeing, but close.
>> Just wanting your thoughts so I write this thing close to what IdP 3
>>will
>> do.
>> thanks,
>> Paul
>> --
>> Paul Hethmon
>> Chief Software Architect
>> Clareity Security, LLC
>> o) 865.824.1350
>> c) 865.250.3517
>> e) paul.hethmon at clareitysecurity.com
>>
>> --
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>>
>
>
>
>-- 
>Chad La Joie
>www.itumi.biz
>trusted identities, delivered
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