Re: [mosquitto-dev] Performance tuning of mosquitto

[Roger Light <roger@xxxxxxxxxx>]

Hi Rajeev,

I'm assuming by "default configuration" you mean you are running
mosquitto just as "mosquitto" with no command arguments. If this is
the case, you could try creating a configuration file:

log_type all
log_dest file /path/to/log_file

Then running again to see what is logged in the file.

If you have debug symbols available (use "file /path/to/mosquitto" and
look for "not stripped") then you could try running with gdb to get a
backtrace when the broker crashed.

gdb mosquitto
(gdb) run

Program runs and crashes, then type "bt" to get a backtrace and post
it to the list.

Good luck!

Cheers,

Roger



On Thu, Jun 9, 2016 at 6:43 AM, Rajeev Kumar <rajeev_ku@xxxxxxx> wrote:
> Hi,
>
>
>
> Please help us to get configuration required.
>
>
>
> Thanks
>
> Rajeev
>
>
>
> From: Rajeev Kumar
> Sent: Tuesday, June 07, 2016 2:13 PM
> To: 'mosquitto-dev@xxxxxxxxxxx' <mosquitto-dev@xxxxxxxxxxx>
> Subject: RE: Performance tuning of mosquitto
>
>
>
> Hi,
>
>
>
> Mosquitto version – 1.4.8
>
> OS - Red Hat Enterprise Linux Server release 7.2 (Maipo)
>
>
>
> Thanks
>
> Rajeev
>
>
>
> From: Rajeev Kumar
> Sent: Tuesday, June 07, 2016 10:31 AM
> To: 'mosquitto-dev@xxxxxxxxxxx' <mosquitto-dev@xxxxxxxxxxx>
> Subject: Performance tuning of mosquitto
>
>
>
> Hi,
>
>
>
> I was testing performance (CPU, Memory, IO and load)  of mosquitto broker,
> to accomplish this, I initiated 1000 connection from a remote system to the
> mosquitto broker.
>
> Checking the logs, 2 times out of 10 attempt to make 1000 connections,
> mosquitto abruptly crashed and seems no suitable/proper logs which indicates
> why crashed.
>
>
>
> Configurations are default on the OS and mosquitto.
>
>
>
> Please suggest if any tuning required on OS amd mosquitto.
>
>
>
> Thanks
>
> Rajeev
>
>
>
>
>
> ::DISCLAIMER::
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only.
> E-mail transmission is not guaranteed to be secure or error-free as
> information could be intercepted, corrupted,
> lost, destroyed, arrive late or incomplete, or may contain viruses in
> transmission. The e mail and its contents
> (with or without referred errors) shall therefore not attach any liability
> on the originator or HCL or its affiliates.
> Views or opinions, if any, presented in this email are solely those of the
> author and may not necessarily reflect the
> views or opinions of HCL or its affiliates. Any form of reproduction,
> dissemination, copying, disclosure, modification,
> distribution and / or publication of this message without the prior written
> consent of authorized representative of
> HCL is strictly prohibited. If you have received this email in error please
> delete it and notify the sender immediately.
> Before opening any email and/or attachments, please check them for viruses
> and other defects.
>
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
>
> _______________________________________________
> mosquitto-dev mailing list
> mosquitto-dev@xxxxxxxxxxx
> To change your delivery options, retrieve your password, or unsubscribe from
> this list, visit
> https://dev.eclipse.org/mailman/listinfo/mosquitto-dev