Hi,
I have created a patch of xendomains script to format output and show
errors. I hope the output is no longer ugly and confusing like it was
before. Now it shows errors in the way they are coming from xm command
only (no usage is printed now). Watchdog_wm() has been changed for not
showing dots in the process of shutting down domains and if an error
occurs it prints target domain, operation (save/restore/migrate etc.)
and reason of failure in more user-friendly way.
Michal
Signed-off-by: Michal Novotny <minovotn@xxxxxxxxxx>
diff -r 4ac8bc60c000 tools/hotplug/Linux/init.d/xendomains
--- a/tools/hotplug/Linux/init.d/xendomains Tue Feb 10 05:51:00 2009 +0000
+++ b/tools/hotplug/Linux/init.d/xendomains Thu Feb 12 15:55:29 2009 +0100
@@ -213,7 +213,7 @@
start()
{
if [ -f $LOCKFILE ]; then
- echo -n "xendomains already running (lockfile exists)"
+ echo -e "xendomains already running (lockfile exists)"
return;
fi
@@ -230,10 +230,12 @@
HEADER=`head -c 16 $dom | head -n 1 2> /dev/null`
if [ $HEADER = "LinuxGuestRecord" ]; then
echo -n " ${dom##*/}"
- xm restore $dom
+ XMR=`xm restore $dom 2>&1 1>/dev/null`
+ #xm restore $dom
if [ $? -ne 0 ]; then
+ echo -e "\nAn error occured while restoring domain
${dom##*/}:\n$XMR"
rc_failed $?
- echo -n '!'
+ echo -e '!'
else
# mv $dom ${dom%/*}/.${dom##*/}
rm $dom
@@ -241,7 +243,7 @@
fi
fi
done
- echo .
+ echo -e
fi
if contains_something "$XENDOMAINS_AUTO"
@@ -264,16 +266,17 @@
if [ $? -eq 0 ] || is_running $dom; then
echo -n "(skip)"
else
- xm create --quiet --defconfig $dom
- if [ $? -ne 0 ]; then
+ XMC=`xm create --quiet --defconfig $dom`
+ if [ $? -ne 0 ]; then
+ echo -e "\nAn error occured while creating domain
${dom##*/}: $XMC\n"
rc_failed $?
- echo -n '!'
+ echo -e '!'
else
usleep $XENDOMAINS_CREATE_USLEEP
fi
fi
done
- fi
+ fi
}
all_zombies()
@@ -293,18 +296,21 @@
# if it has not exited by that time kill it, so the init script will
# succeed within a finite amount of time; if $2 is nonnull, it will
# kill the command as well as soon as no domain (except for zombies)
-# are left (used for shutdown --all).
+# are left (used for shutdown --all). Third parameter, if any, suppresses
+# output of dots per working state (formatting issues)
watchdog_xm()
{
if test -z "$XENDOMAINS_STOP_MAXWAIT" -o "$XENDOMAINS_STOP_MAXWAIT" = "0";
then
exit
fi
+
usleep 20000
for no in `seq 0 $XENDOMAINS_STOP_MAXWAIT`; do
# exit if xm save/migrate/shutdown is finished
PSAX=`ps axlw | grep "xm $1" | grep -v grep`
if test -z "$PSAX"; then exit; fi
- echo -n "."; sleep 1
+ if ! test -n "$3"; then echo -n '.'; fi
+ sleep 1
# go to kill immediately if there's only zombies left
if all_zombies && test -n "$2"; then break; fi
done
@@ -312,10 +318,14 @@
read PSF PSUID PSPID PSPPID < <(echo "$PSAX")
# kill xm $1
kill $PSPID >/dev/null 2>&1
+
+ echo -e .
}
stop()
{
+ exec 3>&2 2> /dev/null
+
# Collect list of domains to shut down
if test "$XENDOMAINS_AUTO_ONLY" = "true"; then
rdnames
@@ -333,7 +343,7 @@
# nothing
;;
(*)
- echo -n '(skip)'
+ echo -e '(skip)'
continue
;;
esac
@@ -345,8 +355,9 @@
if test -n "$XENDOMAINS_SYSRQ"; then
for sysrq in $XENDOMAINS_SYSRQ; do
echo -n "(SR-$sysrq)"
- xm sysrq $id $sysrq
+ XMR=`xm sysrq $id $sysrq 2>&1 1>/dev/null`
if test $? -ne 0; then
+ echo -e "\nAn error occured while doing sysrq on
domain:\n$XMR\n"
rc_failed $?
echo -n '!'
fi
@@ -362,13 +373,18 @@
echo -n "(migr)"
watchdog_xm migrate &
WDOG_PID=$!
- xm migrate $id $XENDOMAINS_MIGRATE
+ XMR=`xm migrate $id $XENDOMAINS_MIGRATE 2>&1 1>/dev/null`
if test $? -ne 0; then
+ echo -e "\nAn error occured while migrating domain:\n$XMR\n"
rc_failed $?
- echo -n '!'
+ echo -e '!'
+
kill $WDOG_PID >/dev/null 2>&1
else
kill $WDOG_PID >/dev/null 2>&1
+
+ echo -e .
+ usleep 1000
continue
fi
fi
@@ -377,13 +393,16 @@
watchdog_xm save &
WDOG_PID=$!
mkdir -p "$XENDOMAINS_SAVE"
- xm save $id $XENDOMAINS_SAVE/$name
+ XMR=`xm save $id $XENDOMAINS_SAVE/$name 2>&1 1>/dev/null`
if test $? -ne 0; then
+ echo -e "\nAn error occured while saving domain:\n$XMR\n"
rc_failed $?
- echo -n '!'
+ echo -e '!'
kill $WDOG_PID >/dev/null 2>&1
else
kill $WDOG_PID >/dev/null 2>&1
+ echo -e .
+ usleep 1000
continue
fi
fi
@@ -392,10 +411,11 @@
echo -n "(shut)"
watchdog_xm shutdown &
WDOG_PID=$!
- xm shutdown $id $XENDOMAINS_SHUTDOWN
+ XMR=`xm shutdown $id $XENDOMAINS_SHUTDOWN 2>&1 1>/dev/null`
if test $? -ne 0; then
+ echo -e "\nAn error occured while shutting down
domain:\n$XMR\n"
rc_failed $?
- echo -n '!'
+ echo -e '!'
fi
kill $WDOG_PID >/dev/null 2>&1
fi
@@ -408,18 +428,21 @@
if ! all_zombies && test -n "$XENDOMAINS_SHUTDOWN_ALL"; then
# XENDOMAINS_SHUTDOWN_ALL should be "--all --halt --wait"
echo -n " SHUTDOWN_ALL "
- watchdog_xm shutdown 1 &
+ watchdog_xm shutdown 1 false &
WDOG_PID=$!
- xm shutdown $XENDOMAINS_SHUTDOWN_ALL
+ XMR=`xm shutdown $XENDOMAINS_SHUTDOWN_ALL 2>&1 1>/dev/null`
if test $? -ne 0; then
+ echo -e "\nAn error occured while shutting down all domains:
$XMR\n"
rc_failed $?
- echo -n '!'
+ echo -e '!'
fi
kill $WDOG_PID >/dev/null 2>&1
fi
# Unconditionally delete lock file
rm -f $LOCKFILE
+
+ exec 2>&3
}
check_domain_up()
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