[erlang-questions] Sending 2.5 MB message with com.ericsson.otp.erlang

CGS <>
Thu Oct 27 16:33:54 CEST 2011


Sorry, it's base 64, not 64 bits. my mind was still "compiling" 
something else when I started to write that post. My apologies.

CGS



On 10/27/2011 04:07 PM, CGS wrote:
> Encode your document in 64 bits (e.g., 
> http://www.erlang.org/doc/man/base64.html) and slice it where you 
> think it's optimal. For JAVA, I don't remember if there is or not such 
> encoding. Nevertheless, the idea is used in messaging (and not only), 
> where large quantity of data (e.g., file transfer in between users) is 
> transfered.
>
> CGS
>
>
> On 10/27/2011 03:41 PM, Martin Dimitrov wrote:
>> Thanks for the suggestion but how do I  send chucked Erlang tuple? The
>> OtpMbox.send() method doesn't send bytes.
>>
>> Martin
>>
>> On 10/27/2011 12:03 PM, CGS wrote:
>>> Hi Martin,
>>>
>>> I suppose you can quantify your data in smaller chunks optimized for
>>> transfer speed. That's one idea, but I am sure there are other ideas
>>> which may be even better.
>>>
>>> Cheers,
>>> CGS
>>>
>>>
>>>
>>> On 10/27/2011 10:46 AM, Martin Dimitrov wrote:
>>>> Hello,
>>>>
>>>> In out app, the Java node sends messages to Erlang through
>>>> com.ericsson.otp.erlang package. In Java we create an OtpNode as:
>>>>
>>>> OtpNode oNode = new OtpNode(NODE);
>>>> oNode.setCookie(COOKIE);
>>>> OtpMbox mbox = oNode.createMbox(MBOX);
>>>>
>>>> and then send using
>>>>
>>>> mbox.send(OtpErlangPid, OtpErlangTuple);
>>>>
>>>> All is well when sending small in size messages (several KB). But when
>>>> sending a relatively large message (2.5MB) it takes 8-10 seconds. The
>>>> interesting thing is that the time it takes does not linearly progress
>>>> with the size of the message: 250KB message took around 100
>>>> milliseconds.
>>>>
>>>> Does anyone know ways to optimize the transfer?
>>>>
>>>> Thanks
>>>>
>>>> Martin
>>>> _______________________________________________
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>>>> 
>>>> http://erlang.org/mailman/listinfo/erlang-questions
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