Truenas and Gluster - Config question

[Sara]

Hello everyone, I found an article:

I built a 6-node Gluster cluster with TrueNAS SCALE - Storage Gaga

I haven’t had hands-on with Gluster for over a decade. My last blog about Gluster was in 2011, right after I did a proof-of-concept for the now defunct, Jaring, Malaysia’s first ISP (Internet Service Provider). But I followed Gluster’s development on and off, until I found out that Gluster was …...

storagegaga.com

which shows that manual configuration of gluster should work ok. I have questions to be sure to Gluster specialists in Truenas :) i think but i'm not sure.

If I use command line commands like "sudo gluster XXX" from the command line (not CLI, but normal gluster commands), will:

- truenas will remember the gluster configuration in the configuration file so that it is not lost during e.g. system update or configuration transfer?
- if not, how to do it, I don't want to use trueCommand because it's experimental for now, and I would like to use gluster because I already have an old gluster environment that I can manage from the command line and I would like to recreate the same new gluster envoirment on truenas by normal classic commands, how to do it preferably without TrueCommand?

Thx :)

 

[artlessknave]

If I use command line commands like "sudo gluster XXX" from the command line (not CLI, but normal gluster commands)

the CLI is the command line so saying you will use the command line but not use the command line doesn't make sense.

truenas will remember the gluster configuration in the configuration file so that it is not lost during e.g. system update or configuration transfer?

nope.

if not, how to do it,

you don't because it's not part of the design and TrueNAS has zero configuration support for it. there is no suport for CLI configuration changes.

should work ok.

no, this means it will "Work". riding a train by standing on the roof will "Work" too...until it doesnt. (like going though a tunnel)

 

[danb35]

the CLI is the command line

Keep in mind the SCALE has a "TrueNAS CLI" that's distinct from a typical shell. I'm not sure if that's the distinction OP is making, but it would seem to fit. Anything done at the "TrueNAS CLI" would use the API/middleware, and would persist across reboots/upgrades/other events. But I'm pretty sure you can't use "normal gluster commands" at the TrueNAS CLI.

 

[sretalla]

As far as I can tell, TrueCommand (which is the supported way to manage gluster) manipulates and reads back the status from each of the cluster members.

I have seen direct manipulation reflected in TrueCommand, but it's a fragile harmony, so if you touch gluster locally the wrong way, TrueCommand can just refuse to deal with it or even see it at all.

I don't know that TrueCommand deals too well with putting settings back on a restored system, but I guess that would be the intended way to handle config transfer or system updates.

 

[Sara]

thank you for your answers, it cleared my doubts, I need to rethink the my migration/implementation of gluster on truenas.