Re: Deprecating NBD in favor of squashfs-over-NFS

Giacomo Trovato <giacomo-o6+VoJyZ4uJWk0Htik3J/[email protected]> Fri, 17 May 2019 10:41:47 +0200
Newsgroups gmane.linux.terminal-server.general
Message-ID <[email protected]>
Hi All, 

perhaps my issue about Firefox and Chrome that suddenly close?

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Giacomo Trovato

Il 17/05/2019 10:15 Rolf-Werner Eilert ha scritto:

> Thank you Alkis for this explanation.
> 
> Am 17.05.19 um 09:52 schrieb Alkis Georgopoulos: 
> 
>> NBD is used for the LTSP client root file system, /.
>> SSHFS is used for /home and is unrelated to this discussion.
>> 
>> NBD has some issues; instability; no reconnections; can't survive server reboots; difficult configuration; etc.
> 
> What would be the effect of instability or no reconnections? Maybe we experienced some and just don't know that NBD was the reason... Anyone here with an example?
> 
> One single time in the last year or so I found that the Mate desktop hadn't loaded completely. I rebooted, and everything has run fine since then. Maybe this was related to NBD?
> 
> I posted a question the other day that sometimes my Mate desktop pushes the icons around randomly. I suspected failing save/load procedures, maybe this has to do with NBD?
> 
>> In the past, NBD replaced NFS in LTSP because the squashfs image has less metadata and is compressed, so it's a lot faster than an uncompressed directory.
> 
> Speed is a crucial point, so does it make sense to give up speed for stability?
> 
>> The best of both worlds is to export the squashfs image over NFS.
> 
> Ok, best of both worlds means, speed AND stability?
> 
> That would make sense. But you should make a decent script which changes this without destroying other (maybe manually made) edits in the config files. Do you think that is possible?
> 
> Regards
> Rolf
> 
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