[infinispan-dev] Compressing Marshaller Wrapper

Thu Feb 25 09:33:50 EST 2010

Ok, I need a solution before the end of the day so I will choose the easiest
way.

I plan to update CloudCacheStoreConfig and add a "compress" option.
Then I only need to change two simple methods "writeToBlob" and
"readFromBlob" (thanks Adrian... next time make them protected ;-))

I will post a patch later.

phil

On Thu, Feb 25, 2010 at 3:21 PM, Manik Surtani <manik at jboss.org> wrote:

>
> On 25 Feb 2010, at 14:17, Philippe Van Dyck wrote:
>
> Another solution is to include a "compression flag" in the version itself.
>
>
> That would work as well...  then you could just handle the compression in
> the VAM
>
>
> WDYT ?
>
> phil
>
> On Thu, Feb 25, 2010 at 3:15 PM, Philippe Van Dyck <pvdyck at gmail.com>wrote:
>
>> 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
>>>>>> > _______________________________________________
>>>>>> > infinispan-dev mailing list
>>>>>> > infinispan-dev at lists.jboss.org
>>>>>> > https://lists.jboss.org/mailman/listinfo/infinispan-dev
>>>>>>
>>>>>> --
>>>>>> Manik Surtani
>>>>>> manik at jboss.org
>>>>>> Lead, Infinispan
>>>>>> Lead, JBoss Cache
>>>>>> http://www.infinispan.org
>>>>>> http://www.jbosscache.org
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
>>>>>
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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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>>
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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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