Re: [mosquitto-dev] Mosquitto Client only

[Ben Hardill <hardillb@xxxxxxxxx>]

Hello,

No, just because the binary for mosquitto broker is installed, that
doesn't mean it has to be running.

Also no, mosquitto doesn't have any native clustering/HA support. You
can bridge multiple brokers together to distribute messages amongst a
cluster of brokers but there is no support replicating session data.

Using an external load balancer won't help with session distribution.

On 11/01/2021 07:19, Sharan Guhan wrote:
> Thanks Matt and Greg for your inputs..
> 
> If I choose to run the entire mosquitto package, which means 3 brokers
> will be running the 3 containers, but 2nd and 3rd will only connect to
> 1st broker's IP address, so 2nd and 3rd's broker will be inactive ?
> 
> Also does mosquitto broker support HA/clustering or needs an external
> HAProxy to support it ? Please help clarify.
> 
> Sharanya
> 
> On Fri, Jan 8, 2021 at 5:28 PM Matt Woelfel <matt@xxxxxxxxxxxxx
> <mailto:matt@xxxxxxxxxxxxx>> wrote:
> 
>     Depending on which container you are using you have a couple of options.
>     1. centos:7 paho is available as just an mqtt client from the epel:
>     yum install paho-c.
>     2. centos:8 I don't see paho packaged for centos:8, so you could
>     build it yourself.
> 
>     As Greg mentioned, the size difference is insignificant (paho is 1.3
>     M with dependent packages and mosquitto is 1.4 M), so it's probably
>     not worth the effort to strip out the broker.
>     If size is really an issue you can install the mosquitto package and
>     remove the broker manually (rm /usr/sbin/mosquitto).
> 
>     On Fri, Jan 8, 2021 at 7:19 PM Greg Troxel <gdt@xxxxxxxxxx
>     <mailto:gdt@xxxxxxxxxx>> wrote:
> 
> 
>         Sharan Guhan <sharanyu@xxxxxxxxx <mailto:sharanyu@xxxxxxxxx>>
>         writes:
> 
>         > Please let me know where can I download mosquitto C Client
>         alone, for
>         > Centos container ? When I use "yum install mosquitto", it installs
>         > the broker also.. I want to create this
> 
>         Two separate bits of advice:
> 
>           problems with or wishes about centos packaging should be
>         directed to
>           centos.  mosquitto releases one tarball which by default
>         builds both,
>           and I don't see that as a bug.
> 
>           Choose to be ok with the broker bits sitting on your disk.  They
>           aren't really that big.   It is likely far less total effort
>         to accept
>           them than to fight it.  It's not like they use QT!
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