David Teigland kirjoitti 2019-04-24 21:05:
On Wed, Apr 24, 2019 at 08:10:11PM +0300, Anssi Hannula wrote:
Anssi Hannula kirjoitti 2019-04-24 02:06:
> Hi all,
>
> I'm getting the following error when trying to run a pvmove command:
>
> # pvmove -v /dev/md0:18122768-19076597
> Cluster mirror log daemon not included in build.
> Archiving volume group "delta" metadata (seqno 72).
> Creating logical volume pvmove0
> activation/volume_list configuration setting not defined: Checking
> only host tags for delta/home_r.
> Moving 167398 extents of logical volume delta/home_r.
> activation/volume_list configuration setting not defined: Checking
> only host tags for delta/data_r.
> Internal error: Referenced LV pvmove0 not listed in VG delta.
>
> This is with git master, but I see the same on 2.02.177.
This old comment stands out as possibly related:
/* FIXME Cope with non-contiguous => splitting existing segments */
https://sourceware.org/git/?p=lvm2.git;a=blob;f=tools/pvmove.c;h=c5e39292228393d6d2ce0a21018dba5b5c306da5;hb=HEAD#l342
It seems you're trying to pvmove a range that covers two segments,
which I
guess doesn't work (I don't know why it doesn't check for this to
provide
a better error.) If you pvmove segments separately it should avoid
that
limitation (your test works for me if I do "pvmove
/dev/loop0:18122768-18909199" which avoids crossing a segment
boundary.)
Thanks, pvmoving the segments separately seems to work around the issue
(well, at least the first pvmove started fine).
Here is a short reproducer:
------clip------
#!/bin/sh
set -ex
mkdir -p lvmtestdir
mount -t tmpfs none lvmtestdir
cd lvmtestdir
truncate --size=$((156275497728*512)) testimg1
truncate --size=$((46883372928*512)) testimg2
dev1="$(losetup -f --show testimg1)"
dev2="$(losetup -f --show testimg2)"
pvcreate "$dev1"
pvcreate "$dev2"
vgcreate TESTVG "$dev1" "$dev2"
lvcreate --name=lv0 -l $((1048576+167398)) TESTVG \
"$dev1":0+655360 \
"$dev1":17037866+393216 \
"$dev1":18909200+167398
lvcreate --name=lv1 -l $((16382506+1478118)) TESTVG \
"$dev1":917504+16120362 \
"$dev1":655360+262144 \
"$dev1":17431082+1478118
# ERROR
pvmove -v "$dev1":18122768-19076597 || :
# cleanup
vgremove --force TESTVG
losetup -d "$dev1"
losetup -d "$dev2"
cd ..
sleep 1 # lvmtestdir busy?
umount lvmtestdir
------clip------
--
Anssi Hannula
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