Re: RPC for java/python with rest support, HTML monitoring and goodies

[Ran Tavory <ra...@gmail.com>]

ok, thanks Doug, I was hoping to get everything out of the box, but that's
close enough I guess...

On Mon, May 3, 2010 at 8:20 PM, Doug Cutting <cu...@apache.org> wrote:

> Ran Tavory wrote:
>
>> Here's my set of requirements:
>>
>
> It seems to me that Avro satisfies most of these.  I'll comment below.
>
>    1. Easy and intuitive IDL. No serial numbers, no manual versioning,
>>
>>      simple... avro is a good example for this.
>>   2. Works with Java and Python
>>
>
> Check.
>
>    3. Supports both fast binary prorocol, as well as HTTP based restful
>>
>>      style. I'd like to be able to use it for both backend-to-backend
>>      communication (java-java or python-java) as well as
>>      frontend-to-backend communication (javascript to java).
>>   4. The rest support needs to include &param=value input as get/post
>>
>>      requests (configurable per request) and output in three possible
>>      formats: json, jsonp, XML.
>>
>
> Avro does not currently support url-encoded query-string parameters.  A
> Java servlet that does this could be added without too much difficulty.
>  Alternately, one might develop an Avro library in Javascript that could
> make binary requests.
>
> One could also easily define an XML-encoding for Avro data.  However
> implementing it and maintaining in all languages might be difficult.  So I
> prefer to consider anything other than the binary encoding as optional for
> implementations.  Thus applications should generally use the binary encoding
> to ensure the greatest intercompatibility.
>
> A JSON-encoding of Avro data is specified that could perhaps also be used
> to implement a jsonp-style approach.
>
>    5. Compact, fast, backward compatible, easy to upgrade etc...
>>
>
> Check.
>
>    6. Provides some nice monitoring interfaces such as: JMX, web page
>>
>>      status reports (e.g. packets in, packets out, error rate etc)
>>
>
> Avro Java has a statistics plugin.  This could be enhanced if there were
> particular values you require.
>
>
> http://hadoop.apache.org/avro/docs/current/api/java/org/apache/avro/ipc/stats/package-summary.html
>
>    7. Ops friendly... no need to take the whole site down to release new
>>
>>      versions
>>
>> ... other goodies are welcome...
>>
>> Is there something out there?
>> So far I've looked at thrift and avro and they are both nice in some ways,
>> but don't check all my list.
>>
>
> Doug
>
>