#!/usr/bin/env bash

# Copyright (C) 2008-2013 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

test_description='Test full metadata'

SKIP_WITH_LVMPOLLD=1

. lib/inittest

LVM_TEST_PVS=${LVM_TEST_PVS:-64}

# aux prepare_vg $LVM_TEST_PVS

unset LVM_LOG_FILE_MAX_LINES

aux prepare_devs 64
get_devs

vgcreate $SHARED -s 512K --metadatacopies 8 $vg "${DEVICES[@]}"

# have tested to see how many LVs can be created in a
# vg set up like this and it's around 1190, so pick a
# number less than that but over 1024 (in case there's
# some issue at the number 1024 we want to find it.)
#
# uses long tags to increase the size of the metadata
# more quickly
#
# the specific number of LVs in these loops isn't great
# because it doesn't depend specified behavior, but it's
# based on how much metadata it produces at the time this
# is written.


for i in `seq 1 1050`; do lvcreate -l1 -an --addtag A123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 $vg; done

# should show non-zero
vgs -o+pv_mda_free

# these addtag's will fail at some point when metadata space is full

for i in `seq 1 1050`; do lvchange --addtag B123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 $vg/lvol$i || true; done

# should show 0
vgs -o+pv_mda_free
check vg_field $vg vg_mda_free 0

# remove some of the tags to check that we can reduce the size of the
# metadata, and continue using the vg

for i in `seq 1 50`; do lvchange --deltag B123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 $vg/lvol$i || true; done

# should show non-zero
vgs -o+pv_mda_free

# these will fail at some point when metadata space is full again

for i in `seq 1 50`; do lvcreate -l1 -an --addtag C123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 $vg || true; done

# should show 0
vgs -o+pv_mda_free
check vg_field $vg vg_mda_free 0

# as long as we have a lot of LVs around, try to activate them all
# (filters are already set up that exclude the activated LVs from
# being scanned)

time vgs

vgchange -ay $vg

time vgs

vgchange -an $vg

# see if we can remove LVs to make more metadata space,
# and then create more LVs

for i in `seq 1 50`; do lvremove -y $vg/lvol$i; done

for i in `seq 1 10`; do lvcreate -l1 $vg; done

# should show non-zero
vgs -o+pv_mda_free

vgremove -ff $vg