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git://sourceware.org/git/lvm2.git
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22571fb36a
Avoid using 'lvs' from 'get' shell - as that would wait until whole group of processes is finished. TODO: rethink what would be the point of starting 'dmeventd' with lvs. It seems to break some rules.
124 lines
3.7 KiB
Bash
124 lines
3.7 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2008 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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_restart_dmeventd() {
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local pid=
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#rm -f debug.log*
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dmeventd -R -fldddd -e "$PWD/test_nologin" > debug.log_DMEVENTD_$RANDOM 2>&1 &
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local local=$!
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echo "$local" >LOCAL_DMEVENTD
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for i in {1..50}; do
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pid=$(pgrep -o dmeventd) || break
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# Check pid and dmeventd readiness to communicate
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test "$pid" = "$local" && dmeventd -i && break
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sleep .2
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done
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if [ "$i" -eq 50 ]; then
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# Unexpected - we waited over 10 seconds and
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# dmeventd has not managed to restart
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cat /run/dmeventd.pid || true
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pgrep dmeventd || true
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die "dmeventd restart is too slow"
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fi
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}
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aux prepare_dmeventd
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aux prepare_vg 5
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lvcreate -aey --type mirror -m 3 --nosync --ignoremonitoring -l1 -n 4way $vg
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lvchange --monitor y $vg/4way
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lvcreate -aey --type mirror -m 2 --nosync --ignoremonitoring -l1 -n 3way $vg
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lvchange --monitor y $vg/3way
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lvcreate -aey -l1 -n $lv1 $vg
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lvcreate -s -l1 -n $lv2 $vg/$lv1
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_restart_dmeventd
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check lv_field $vg/3way seg_monitor "monitored"
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check lv_field $vg/4way seg_monitor "monitored"
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lvchange --monitor y --verbose $vg/3way 2>&1 | tee lvchange.out
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# only non-cluster tests can check command result
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test -e LOCAL_CLVMD || grep 'already monitored' lvchange.out
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lvchange --monitor y --verbose $vg/4way 2>&1 | tee lvchange.out
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test -e LOCAL_CLVMD || grep 'already monitored' lvchange.out
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# now try what happens if no dmeventd is running
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pid=$(< LOCAL_DMEVENTD)
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kill -9 "$pid"
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# TODO/FIXME: it would be surely better, if the wait loop bellow would
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# not be need however ATM the API for communication is not welldetecting
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# this highly unusual race case - and things will simply timeout on
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# reading failure within 4 seconds.
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# Fixing would require to add some handling for losing FIFO connection
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for i in {1..10}; do
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# wait here for a while until dmeventd dies....
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# suprisingly it's not instant and we can actually
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# obtain list of monitored devices...
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test -z $(ps -p "$pid" -o comm=) && break
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sleep .1
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done
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rm LOCAL_DMEVENTD debug.log*
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_restart_dmeventd
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# now dmeventd should not be running
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not pgrep dmeventd
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rm LOCAL_DMEVENTD
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# First lvs restarts 'dmeventd' (initiate a socket connection to a daemon)
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# used explicit 'lvs' avoid using forked 'check' function here as that
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# would furher for 'get' and actualy would be waint till whole process group
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# exits - which is not what we want here
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#
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# FIXME/TODO: lvs should probably not be the way to 'fork dmeventd'
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#
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lvs --noheadings -o seg_monitor $vg/3way
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check lv_field $vg/3way seg_monitor "not monitored"
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pgrep -o dmeventd >LOCAL_DMEVENTD
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check lv_field $vg/4way seg_monitor "not monitored"
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lvchange --monitor y --verbose $vg/3way 2>&1 | tee lvchange.out
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test -e LOCAL_CLVMD || not grep 'already monitored' lvchange.out
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lvchange --monitor y --verbose $vg/$lv2 2>&1 | tee lvchange.out
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test -e LOCAL_CLVMD || not grep 'already monitored' lvchange.out
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_restart_dmeventd
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kill -INT "$(< LOCAL_DMEVENTD)"
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sleep 1
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# dmeventd should be still present (although in 'exit-mode')
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pgrep -o dmeventd
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# Create a file simulating 'shutdown in progress'
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touch test_nologin
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sleep 2
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# Should be now dead (within ~1 second)
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not pgrep -o dmeventd
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rm -f LOCAL_DMEVENTD
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# Do not run dmeventd here again
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vgremove -ff --config 'activation/monitoring = 0' $vg
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