[linux-lvm] Slow response from lvs and vgs commands

[Marcos Dutra]

Hi everybody,

I have the same problem when I use vgs command, so I used vgs -vvv command
and it was slow when the output command showed me this "Archiving volume
group "vgoracle" metadata (seqno 3)", I have many vgs with this status,
Archiving volume group xxx, Is it normal? What can I do to solve this?

Thanks

Marcos Dutra

2015-01-19 20:58 GMT-02:00 John Griffith <john.griffith8 at gmail.com>:

> On Mon, Jan 19, 2015 at 3:21 PM, Alasdair G Kergon <agk at redhat.com> wrote:
> > On Mon, Jan 19, 2015 at 02:05:39PM -0700, John Griffith wrote:
> >> I'm wondering if there's something I should be looking at more closely
> >> to debug this, or if there's a way to filter the lvs and vgs commands
> >> to make them more efficient?
> >
> > Add -vvvv to the command lines and see if that helps you to see
> > where the slowness is.
> >
> > Alasdair
> >
>
> Thanks Alasdair,
>
> Turns out I got a great suggestion to wrap this up in strace via the
> IRC channel.  Turns out I'm scanning on some devices that are being
> plugged in and out of the system and the failure is due to the fact
> that the raw device gets ripped out from under the vgscan.
>
> Going to try limiting the devices I interact with via lvm.conf, I
> think that will address the issue.
>
> Thanks,
> John
>
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