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

On Fri, Nov 8, 2013 at 6:07 PM, Kasun Weranga <kasungunathilake@xxxxxxxxx> wrote:

Hi Roger,

On Fri, Nov 8, 2013 at 5:51 PM, Roger Light <roger@xxxxxxxxxx> wrote:
Hi Kasun,

My guess is that you're using mosquitto with QoS 1 or 2 messages.
Current versions of mosquitto limit the number of messages a client
can have inflight and queued in both directions. The default limit is
20 inflight and 100 queued. You may wish to increase these limits.

I think that might be the problem. Can you please tell me how can I increase these limits?

Ok got it. Thanks Roger. I'll try this. 


There is also a valid argument that the client should limit the
incoming message rate and the server should just accept what is being



On Fri, Nov 8, 2013 at 6:50 AM, Kasun Weranga
<kasungunathilake@xxxxxxxxx> wrote:
> 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:
> blog:
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Kasun Weranga Gunathilake.

Kasun Weranga Gunathilake.

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