Re: java serialization alternative

Hm... Same here - large scale system, with a bunch of stateless
services connected by messaging middleware. However, we never found
serialization to be a bottleneck.  Just goes to show that you need to
measure every system separately and that performance advice is hard to
generalize. As a matter of fact, my system scales nicely, so for few
years now we just throw more hardware into it when our business
capacity demands expand.

Attila.

On 2008.03.29., at 2:41, Avinash Lakshman wrote:
> We are building a large scale system which relies on messaging
> heavily. We tried all kinds of serialization formats: Java, JAXB,
> XML and JSON with XStream. All of them were useless for high
> throughput. So we switched to Externalizable style serialization and
> were able to get much better performance. Which was evident upfront
> but we didn't have to write that code. Also now it behooves us to
> come with some kind of versioning scheme so that we push rolling
> upgrades to the cluster w/o bringing the whole cluster down. I can
> dig up the numbers if you would like.
>
> A
>
>> Date: Fri, 28 Mar 2008 11:18:04 -0400
>> From: [email protected]
>> Subject: [ADVANCED-JAVA] java serialization alternative
>> To: [email protected]
>>
>> Do any of you guys have experience with Java serialization and what
>> kind of overheads it causes?  As far as I know, it produces very
>> large
>> messages and is not particularly fast, so I am concerned about that
>> given that it is pervasively used in our system core for sending
>> messages between daemons over our messaging API.
>>
>> One possible alternative is http://xstream.codehaus.org/ which can be
>> tuned to produce fairly small messages (by aliasing class names and
>> types for example).   However, I have no sense of the speed.  I will
>> do some performance tests.
>>
>> Comments, questions, etc?
>>
>>
>> --
>> [ Rodrick R. Brown ]
>> http://www.rodrickbrown.com
>> http://www.linkedin.com/in/rodrickbrown

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