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Re: [paho-dev] Message loss with higher load - eclipse paho mqtt client
Hi Dave,

Please my answers inline.


On Fri, Nov 8, 2013 at 4:30 PM, Dave Locke <locke@xxxxxxxxxx> wrote:
Would not expect to miss messages

A few questions:
Which client is being used - C, Java or _javascript_ ?
Java client 

What QOS are the messages published at?

QOS is 1  

Is the client connecting with cleansession set to true or false?

I am getting high number of messages when clients are getting disconnect. I have set a will. So this message will publish by the server when client disconnect. 
 

Which MQTT server is being used?

Mosquitto 

Is it the publishing client also the subscribing client or are they two separate clients ?

Subscribing client is a separate one. 


Is there any patten to the missing messages e.g. the last 100... ?

I am getting high load from the beginning, so first first 120 messages will be lost. 


Thanks,
Kasun.   


Probably simplest way to handle this is to raise a bug on the paho bugzilla.


All the best
Dave
 



From:        Kasun Weranga <kasungunathilake@xxxxxxxxx>
To:        paho-dev@xxxxxxxxxxx
Date:        08/11/2013 06:51
Subject:        [paho-dev] Message loss with higher load - eclipse paho mqtt client
Sent by:        paho-dev-bounces@xxxxxxxxxxx



Hi all,

I am experience some message loss with high load when using eclipse paho mqtt client. I have subscribed to a set of topics (clients/+) and I did some load testing using eclipse paho mqtt client. I saw my subscriber only receiving first 120 messages when I publish messages to (clients/+) topics - Message publishing rate is above 400 messages per second. 
Is there any configuration that I need to set for higher load. How can I solve above issue.
Appreciate any help on solving this issue.

Thanks and Regards,
Kasun. 





--
Kasun Weranga Gunathilake.
mobile: +6594230423
LinkedIn: http://sg.linkedin.com/in/kasunwg
blog: http://kasunweranga.blogspot.com/
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--
Kasun Weranga Gunathilake.

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