[Users] OpenVZ 7 -- ploop compact not implemented?

[Vasily Averin]

Dear Artyom,
our developers expect that this functionality work correctly.
So please re-check your set up, and if you have stable reproducer
please submit bug into reproduce the problem via bugs.openvz.org

Thank you,
	Vasily Averin

On 2017-08-30 09:58, Artyom Tolstobrov wrote:
> Unfortunately this doesn't seem to work at least with ploop.x86_64 0:7.0.99-1.vz7.
> 
> #ploop-balloon discard --automount /vz/private/104/root.hdd/DiskDescriptor.xml
> Opening delta /vz/private/104/root.hdd/root.hds
> Reopen rw /vz/private/104/root.hdd/root.hds
> Trimming tail
> Error in ploop_check (check.c:564): ftruncate: Text file busy
> Error in check_deltas (check.c:649): /vz/private/104/root.hdd/root.hds : irrecoverable errors (rw)
> 
> After this, the container is not mountable under OpenVZ 7 any more (though OpenVZ 6 can successfully repair and mount it):
> 
> # vzctl start 104
> Starting Container ...
> Mount image: /vz/private/104/root.hdd
> Failed to mount image: Error in check_deltas (check.c:649): /vz/private/104/root.hdd/root.hds : irrecoverable errors (rw) [19]
> 
> (Reproduced this on several containers with same result).
> 
> Should I file a bug or is it some sort or error on my part?
> 
> (Hi Kirill! Enormously glad to see you here.)
> 
> -- 
> Best Regards,
> Artyom
> 
> On 21 August 2017 at 13:11, Kirill Kolyshkin <kolyshkin at gmail.com <mailto:kolyshkin at gmail.com>> wrote:
> 
>     Indeed, pcompact is just a wrapper that essentially running ploop
>     balloon discard for all containers
>     (as you can see by reading its source code at
>     https://src.openvz.org/projects/OVZ/repos/pcompact/browse/main.c <https://src.openvz.org/projects/OVZ/repos/pcompact/browse/main.c>)
> 
>     vzctl compact from OpenVZ Legacy was also a wrapper, just for
>     individual containers, that saved you the hassle
>     of figuring out the path to DiskDescriptor.xml and typing 'ploop
>     balloon discard'.
> 
>     What's new is defrag option, that runs OpenVZ's ext4 defragmenter,
>     e4defrag2, written by Dmitry Monakhov.
>     Its source code is at https://github.com/dmonakhov/e2fsprogs/tree/e4defrag2 <https://github.com/dmonakhov/e2fsprogs/tree/e4defrag2>
> 
>     Kir
> 
>     On 20 August 2017 at 20:14, Konstantin Bukharov <bkb at virtuozzo.com <mailto:bkb at virtuozzo.com>> wrote:
>     > Hi Artyom,
>     >
>     >
>     >
>     > No, it’s not dropped. Look at ‘man ploop’, look for:
>     >
>     >
>     >
>     >        ploop balloon discard [--automount] [--to-free size] [--min-block
>     > min_size] [--defrag] DiskDescriptor.xml
>     >
>     >
>     >
>     > Best regards,
>     >
>     > Konstantin
>     >
>     >
>     >
>     >
>     >
>     >
>     >
>     > From: users-bounces at openvz.org <mailto:users-bounces at openvz.org> [mailto:users-bounces at openvz.org <mailto:users-bounces at openvz.org>] On Behalf
>     > Of Artyom Tolstobrov
>     > Sent: Sunday, August 20, 2017 17:51
>     > To: users at openvz.org <mailto:users at openvz.org>
>     > Subject: [Users] OpenVZ 7 -- ploop compact not implemented?
>     >
>     >
>     >
>     > After version 6 to 7 upgrade (clean install, VEs moved through vzmigrate) I
>     > found that "vzctl compact" is no longer supported.
>     >
>     >
>     >
>     > Documentation suggests I should use "pcompact" but if fails with "Login
>     > failed: Unable to connect to Virtuozzo" message (which suggests that it is
>     > only for the commercial version).
>     >
>     >
>     >
>     > Is ploop compacting dropped from version 7?
>     >
>     >
>     >
>     > --
>     >
>     > Best Regards,
>     >
>     > Artyom
>     >
>     >
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> 
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> 
> 
> 
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