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Date:      Tue, 12 Mar 2019 06:54:21 +0100 (CET)
From:      =?ISO-8859-1?Q?Trond_Endrest=F8l?= <Trond.Endrestol@fagskolen.gjovik.no>
To:        FreeBSD current <freebsd-current@freebsd.org>
Subject:   Re: ZFS no longer mounted in alphanumerical order
Message-ID:  <alpine.BSF.2.21.9999.1903120651510.315@mail.fig.ol.no>
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On Mon, 11 Mar 2019 14:03-0700, Freddie Cash wrote:

> On Mon, Mar 11, 2019 at 1:59 PM Trond Endrestøl <
> Trond.Endrestol@fagskolen.gjovik.no> wrote:
> 
> > On Mon, 11 Mar 2019 13:47-0700, Matthew Ahrens wrote:
> >
> > > On Mon, Mar 11, 2019 at 11:33 AM Trond Endrestøl <
> > > Trond.Endrestol@fagskolen.gjovik.no> wrote:
> > >
> > > > Has anyone else noticed ZFS datasets are no longer mounted in
> > > > alphanumerical order in CURRENT? It looks more like they are mounted
> > > > in the order in which they are encountered.
> > >
> > > Wouldn't surprise me if this was caused by the parallel mount changes.
> > The
> > > filesystems should still be mounted in hierarchical order (parents before
> > > children), so everything should still work. What problem are you seeing
> > as
> > > a result of the changed mount order?
> >
> > Actually no problems other than it's rather unintuitive when looking
> > at the output of "df -ah". Could we have a command line option for
> > disabling the parallel mount?
> 
> Wouldn't it make more sense to teach df, du, "zfs list", and other things
> that list the mounted filesystems to use sorted output?

That's a better alternative.

> IOW, is it the mount process itself that's an issue, or just the output of
> mounted filesystems list?

The latter in my case.

-- 
Trond.
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Subject: Re: ZFS no longer mounted in alphanumerical order
To: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net>
Cc: Freddie Cash <fjwcash@gmail.com>,
 =?UTF-8?Q?Trond_Endrest=c3=b8l?= <Trond.Endrestol@fagskolen.gjovik.no>,
 FreeBSD current <freebsd-current@freebsd.org>
References: <201903120012.x2C0CeeJ012446@gndrsh.dnsmgr.net>
From: Andriy Gapon <avg@FreeBSD.org>
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On 12/03/2019 02:12, Rodney W. Grimes wrote:
>> On 11/03/2019 23:03, Freddie Cash wrote:
>>> Wouldn't it make more sense to teach df, du, "zfs list", and other things
>>> that list the mounted filesystems to use sorted output?
>>
>> | sort [desired options]
> 
> Except that df and zfs list have a header that you have to deal with,
> which is not so easy to get sort to do the right things with out
> some hoop jumping.

Like "| tail +2" ?
Or if it's just for visual inspection (as seems to be the case for the original
poster) just mentally filter out that line.

>> P.S.
>> zfs list already supports sorting by a specific property.
> 
> Perhaps make zfs list -s mountpoint a default?

Why?

-- 
Andriy Gapon



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