[Gluster-users] TCP port usage

[JF Le Fillâtre]

Well I don't have a linear sequence either. My original thought was:
some bricks were added and removed and the port number counter stayed at
whatever it was before. That would explain the holes.

But I created my volume in just one command with all the bricks at once,
so obviously it's not everything.

Time to go check the sources.

[time passes...]

I don't have the logs from the time of the creation of that volume
anymore. Can you check in yours if you seen anything like this:

"base-port override: ..."

It's an info-level message, so you may not have it either.

Thanks!
JF



On 19/03/15 09:49, Melkor Lord wrote:
> On Thu, Mar 19, 2015 at 9:37 AM, JF Le Fillâtre
> <jean-francois.lefillatre at uni.lu
> <mailto:jean-francois.lefillatre at uni.lu>> wrote:
> 
> 
>     So yes, on a given server you only see the ports for the bricks of
>     that server. From that I can deduce that the glusterd server running
>     on port 24007 provides the local port numbers to all other machines
>     (servers and clients).
> 
>     And it seems that brick port numbers are unique pool-wise, rather
>     than incrementing from a same number on each machine.
> 
>     Compare that with:
>     http://www.gluster.org/community/documentation/index.php/Basic_Gluster_Troubleshooting
> 
>     It states:
>     "One TCP port for each brick in a volume. So, for example, if you
>     have 4 bricks in a volume, port [...] 49152 - 49155 from GlusterFS
>     3.4 & later."
> 
>     It seems that the starting port isn't set in stone, and that the
>     uniqueness of the port numbers takes precedence over a linear port
>     number sequence on a given server.
> 
> 
> All right so my obvious question : What happened, in my case to ports
> 49153 and 49154?
> 
> I have 1 volume with 3 bricks, starting at 49152, I should have *53, *54
> and *55 in a perfect world :-)
> 
> -- 
> Unix _IS_ user friendly, it's just selective about who its friends are.

-- 

 Jean-François Le Fillâtre
 -------------------------------
 HPC Systems Administrator
 LCSB - University of Luxembourg
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