[infinispan-dev] Compressing Marshaller Wrapper

[Philippe Van Dyck]

For my purpose, the cachestore delegator is enough...

Well, I'll take a second look at VersionAwareMarshaller...

phil

On Thu, Feb 25, 2010 at 3:10 PM, Manik Surtani <manik at jboss.org> wrote:

> I think it makes more sense in the marshaller, simply because the
> compressed stream is useful elsewhere as well - such as the network, etc.
>
> On 25 Feb 2010, at 13:40, Philippe Van Dyck wrote:
>
> Sounds like a better idea, closer to the real purpose since the Marshaller
> is used in other places... but how do I configure this ?
>
> Anyway, the marshaller is done, I am testing it, but the code is very easy
> to adapt to a cachestore...
>
> phil
>
>
> On Thu, Feb 25, 2010 at 2:33 PM, Mircea Markus <mircea.markus at jboss.com>wrote:
>
>> Can't we handle this through a delegating CacheStore, that would compress
>> the data and pass it on to the actual store for further processing (the
>> actual store will take then the binary data and marshall it (ni marshalling
>> I assume as it receives byte[]).?
>>
>> On 25 Feb 2010, at 14:06, Philippe Van Dyck wrote:
>>
>> Done
>>
>> https://jira.jboss.org/jira/browse/ISPN-357
>>
>> Phil
>>
>> On Thu, Feb 25, 2010 at 12:22 PM, Manik Surtani <manik at jboss.org> wrote:
>>
>>>
>>> On 25 Feb 2010, at 11:17, Philippe Van Dyck wrote:
>>>
>>> Thanks Manik but it is actually related to the compression of the stored
>>> and (https) transferred ones on the S3 side.
>>> The S3 bill is 95% lower here... and https transfer time is lower too
>>> (you pay for booth).
>>>
>>>
>>> Makes sense.  Create a JIRA for this, I'm sure such a feature would be
>>> generically useful to others as well - if you're happy to contribute your
>>> work back in.  :)
>>>
>>> The Marshaller interface is exposing a lot of methods and it looks like
>>> the call each other...
>>>
>>>
>>> The original Marshaller interface is legacy, from JBoss Cache, which was
>>> built as an extension to JGroups' Marshaller interface.  It may look a
>>> little confusing as a result, but have a look at the AbstractMarshaller
>>> which should help simplify things.  Further, look at the
>>> VersionAwareMarshaller, which is the entry point into the marshalling
>>> system.
>>>
>>> HTH
>>> Manik
>>>
>>>
>>>
>>>
>>> phil
>>>
>>> On Thu, Feb 25, 2010 at 12:11 PM, Manik Surtani <manik at jboss.org> wrote:
>>>
>>>> If it is compression for transmission you are concerned about, you can
>>>> do this by adding the JGroups COMPRESS protocol to your JGroups cfg.
>>>>
>>>> On 25 Feb 2010, at 11:02, philippe van dyck wrote:
>>>>
>>>> > Hi All,
>>>> >
>>>> > Currently, I compress all data before sending it to the cache. Once
>>>> compressed, I gain 95% of the JSonized qi4j objects.
>>>> >
>>>> > I did some profiling during the load tests and compression is taking
>>>> roughly 80% of the cpu time.
>>>> > So I would like to compress only the data sent to the store, not in
>>>> memory.
>>>> >
>>>> > Looks like the Marshaller is my friend here, and I plan to write a
>>>> compressing wrapper around it.
>>>> >
>>>> > Now, when I look at it, I see two ways to wrap the compression
>>>> process.
>>>> >
>>>> > One way is with the ObjectInput / ObjectOutput but I am bothered by
>>>> the reentrant flag.
>>>> > The other is the ByteBuffer stuff, no concurrency problem here, but it
>>>> looks like more work.
>>>> >
>>>> > WDYT ?
>>>> >
>>>> > Cheers,
>>>> >
>>>> > phil
>>>> > _______________________________________________
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>>>>
>>>> --
>>>> Manik Surtani
>>>> manik at jboss.org
>>>> Lead, Infinispan
>>>> Lead, JBoss Cache
>>>> http://www.infinispan.org
>>>> http://www.jbosscache.org
>>>>
>>>>
>>>>
>>>>
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>>>  --
>>> Manik Surtani
>>> manik at jboss.org
>>> Lead, Infinispan
>>> Lead, JBoss Cache
>>> http://www.infinispan.org
>>> http://www.jbosscache.org
>>>
>>>
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>
> --
> Manik Surtani
> manik at jboss.org
> Lead, Infinispan
> Lead, JBoss Cache
> http://www.infinispan.org
> http://www.jbosscache.org
>
>
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