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From: KrishnaMurali Chennuboina <krishchennu414@gmail.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Issue after upgrading the LVM2 package from 2.02.176 to 2.02.180
Date: Mon, 14 Sep 2020 20:49:59 +0530	[thread overview]
Message-ID: <CAJHv+s6TmtZFxRTZW1Yo-2gFee4x5XPa1dpFnP_+EMxtr80DAw@mail.gmail.com> (raw)
In-Reply-To: <CAAMCDefd+ugu-Myx0wAfmfRs+1TnTjX-yQSMjLkjtLPNx2tnyw@mail.gmail.com>

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Hi Roger,

I have tried this with the older LVM package(.176) and this issue was not
seen. Issue was seen with .180 version every time.
# executing command: vgchange -ay
(status, output): (0,   WARNING: Failed to connect to lvmetad. Falling back
to device scanning.)
  WARNING: Failed to connect to lvmetad. Falling back to device scanning.
# executing command: pvcreate -ffy /dev/sda3
(status, output): (5,   WARNING: Failed to connect to lvmetad. Falling back
to device scanning.
  Error reading device /dev/sda3 at 0 length 4096.
  Error reading device /dev/ram0 at 0 length 4096.
  Error reading device /dev/loop0 at 0 length 4096.
  Error reading device /dev/sda at 0 length 512.
  Error reading device /dev/sda at 0 length 4096.
  Error reading device /dev/ram1 at 0 length 4096.
  Error reading device /dev/sda1 at 0 length 4096.
  Error reading device /dev/ram2 at 0 length 4096.
  Error reading device /dev/sda2 at 0 length 4096.
  Error reading device /dev/ram3 at 0 length 4096.
  Error reading device /dev/ram4 at 0 length 4096.
  Error reading device /dev/ram5 at 0 length 4096.
  Error reading device /dev/ram6 at 0 length 4096.
  Error reading device /dev/ram7 at 0 length 4096.
  Error reading device /dev/ram8 at 0 length 4096.
  Error reading device /dev/ram9 at 0 length 4096.
  Error reading device /dev/ram10 at 0 length 4096.
  Error reading device /dev/ram11 at 0 length 4096.
  Error reading device /dev/ram12 at 0 length 4096.
  Error reading device /dev/ram13 at 0 length 4096.
  Error reading device /dev/ram14 at 0 length 4096.
  Error reading device /dev/ram15 at 0 length 4096.
  Device /dev/sda3 excluded by a filter.)
Failed to execute command: pvcreate -ffy /dev/sda3
ec=0

I have tried with different options of pvcreate but didnt helped much.
After the system got halted with the above error, i tried to executing pvs
command but got the below error.
bash-4.4# pvs
  Error reading device /dev/ram0 at 0 length 4096.
  Error reading device /dev/loop0 at 0 length 4096.
  Error reading device /dev/sda at 0 length 512.
  Error reading device /dev/sda at 0 length 4096.
  Error reading device /dev/ram1 at 0 length 4096.
  Error reading device /dev/sda1 at 0 length 4096.
  Error reading device /dev/ram2 at 0 length 4096.
  Error reading device /dev/sda2 at 0 length 4096.
  Error reading device /dev/ram3 at 0 length 4096.
  Error reading device /dev/sda3 at 0 length 4096.
  Error reading device /dev/ram4 at 0 length 4096.
  Error reading device /dev/sda4 at 0 length 4096.
  Error reading device /dev/ram5 at 0 length 4096.
  Error reading device /dev/ram6 at 0 length 4096.
  Error reading device /dev/ram7 at 0 length 4096.
  Error reading device /dev/ram8 at 0 length 4096.
  Error reading device /dev/ram9 at 0 length 4096.
  Error reading device /dev/ram10 at 0 length 4096.
  Error reading device /dev/ram11 at 0 length 4096.
  Error reading device /dev/ram12 at 0 length 4096.
  Error reading device /dev/ram13 at 0 length 4096.
  Error reading device /dev/ram14 at 0 length 4096.
  Error reading device /dev/ram15 at 0 length 4096.
  Error reading device /dev/sdb at 0 length 512.
  Error reading device /dev/sdb at 0 length 4096.
  Error reading device /dev/sdb1 at 0 length 4096.
  Error reading device /dev/sdb2 at 0 length 4096.
  Error reading device /dev/sdb3 at 0 length 4096.
  Read-only locking type set. Write locks are prohibited.
  Recovery of standalone physical volumes failed.
  Cannot process standalone physical volumes
bash-4.4#

Attached the complete log in initial mail.

Thanks.

On Mon, 14 Sep 2020 at 20:29, Roger Heflin <rogerheflin@gmail.com> wrote:

> In general I would suggest fully disabling lvmetad from the config
> files and from being started up.
>
> Issues around it not answering (like above) and answering but somehow
> having stale/wrong info have burned me too many times to trust it.  It
> may be a lvmetad bug, or be udevd weirdness.
>
> The only significant improvement it makes is it reduces the lvm
> command time on installs with significant numbers of devices, but
> given that the info has been wrong often enough that is not worth the
> risk.
>
> On Mon, Sep 14, 2020 at 2:25 AM KrishnaMurali Chennuboina
> <krishchennu414@gmail.com> wrote:
> >
> > Hi Team,
> >
> > While trying to analyze one the issue, we felt that upgrading the
> current LVM2 package in our repository will be the best approach.
> > As part of that, we have updated the respective package from  2.02.176
> to 2.02.180. We have verified the same and booted x86_64 hardware without
> any issues.
> >
> > But while trying to boot mips64 hardware we have started observing the
> below issue.  Providing the snippet of the log,
> >
> > # executing command: vgchange -an
> > (status, output): (0,   WARNING: Failed to connect to lvmetad. Falling
> back to device scanning.)
> >   WARNING: Failed to connect to lvmetad. Falling back to device scanning.
> >
> > Attached the detailed log for reference. There is no other change
> included other than the LVM2 update.
> >
> > LVM2 Version: 2.02.176
> > Updated LVM2 version: 2.02.180
> >
> > Please share inputs on why this issue is being observed with .180
> version?
> > Please let me know if i can share any other information.
> >
> > Thanks.
> >
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm@redhat.com
> > https://www.redhat.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>

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  reply	other threads:[~2020-09-14 15:20 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-10 13:53 KrishnaMurali Chennuboina
2020-09-14 14:58 ` Roger Heflin
2020-09-14 15:19   ` KrishnaMurali Chennuboina [this message]
2020-09-15 11:05     ` Roger Heflin
2020-09-15 12:58       ` KrishnaMurali Chennuboina
2020-09-15 17:01         ` KrishnaMurali Chennuboina
2020-09-17 16:26           ` Roger Heflin
2020-09-15 18:46       ` Zdenek Kabelac

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