[cas-dev] Memcache ticket registry

[Scott Battaglia]

Despite the fact that others have been successful in deploying JBossCache we
experienced significant scaling issues locally. I'm not sure what the cause
was, whether it was a limitation of JBossCache or our network topology but
we decided to see what else was available.   We've had good luck with
memcached (patched to be repcache) and we're looking at deploying that
barring any further testing indicating that there's a problem.

Using LoadRunner we've run some pretty heavy load tests with 250, 300, 400
and 500 vusers (the max our license has) for about a half hour each. We also
did a 2.5 day "soak" test that generated about 120 GB of traffic (our
network people loved us that weekend).

As we get further along I'll be sure to pass any information along to the
list (especially if we end up not going with this ;-))

-Scott

-Scott Battaglia
PGP Public Key Id: 0x383733AA
LinkedIn: http://www.linkedin.com/in/scottbattaglia

On Tue, Jul 15, 2008 at 7:01 AM, Arnaud Lesueur <arnaud.lesueur at gmail.com>
wrote:

> Hi Scott,
>
> I thought Rutgers was migrating to JBossCache. Did you experimented any
> issue with it ? What is going to be the final architecture at your side ?
> Or is it simply a PoC for comparison with JBossCache (or even Terracota in
> future) ?
>
>
> Regards,
>
>
>
> Arnaud Lesueur
>
>
> On Mon, Jul 14, 2008 at 5:58 PM, Scott Battaglia <
> scott.battaglia at gmail.com> wrote:
>
>> All,
>>
>> As part of the next upcoming release (most likely to be renamed to 3.3
>> instead of 3.2.2), we're adding Memcache support for those who want to use
>> it (we've seen good performance with it here at RU in our testing):
>>
>> The code is in SVN but not in any release yet, though I've posted some
>> documentation here:
>> http://www.ja-sig.org/wiki/display/CASUM/MemcacheTicketRegistry
>>
>> If anyone who has memcache experience can test it out that would be great.
>> We've hit it pretty hard here but we're only one place.  We also did a 2.5
>> day "soak" test in addition to stress testing.
>>
>> Thanks
>> -Scott
>>
>> -Scott Battaglia
>> PGP Public Key Id: 0x383733AA
>> LinkedIn: http://www.linkedin.com/in/scottbattaglia
>> _______________________________________________
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>> cas-dev at tp.its.yale.edu
>> http://tp.its.yale.edu/mailman/listinfo/cas-dev
>>
>>
>
>
> --
> Arnaud Lesueur
>
> LinkedIn: http://www.linkedin.com/in/lesueur
>
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>
>
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