mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
7f377cf26e
There are parentheses missing that stop the default pattern from matching commands with trailing garbage (e.g. "exportfs.orig"). A careful check of POSIX (and running GNU sed with --posix) suggests that "\|" isn't a supported way of specifying alternation in a regular expression. Therefore, it is clearer to switch to extended regular expressions so that this has a chance of being portable (even though the point is to print /proc/<pid>/stack, which only works on Linux). Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com> Autobuild-User(master): Amitay Isaacs <amitay@samba.org> Autobuild-Date(master): Tue Nov 18 06:37:45 CET 2014 on sn-devel-104
60 lines
1.8 KiB
Bash
Executable File
60 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
# This script only works on Linux. Please modify (and submit patches)
|
|
# for other operating systems.
|
|
|
|
[ -n "$CTDB_BASE" ] || \
|
|
export CTDB_BASE=$(cd -P $(dirname "$0") ; echo "$PWD")
|
|
|
|
. "$CTDB_BASE/functions"
|
|
|
|
loadconfig ctdb
|
|
|
|
# Testing hook
|
|
if [ -n "$CTDB_DEBUG_HUNG_SCRIPT_LOGFILE" ] ; then
|
|
tmp="${CTDB_DEBUG_HUNG_SCRIPT_LOGFILE}.part"
|
|
exec >>"$tmp" 2>&1
|
|
fi
|
|
|
|
(
|
|
# No use running several of these in parallel if, say, "releaseip"
|
|
# event hangs for multiple IPs. In that case the output would be
|
|
# interleaved in the log and would just be confusing.
|
|
flock --wait 2 9 || exit 1
|
|
|
|
echo "===== Start of hung script debug for PID=\"$1\", event=\"$2\" ====="
|
|
|
|
echo "pstree -p -a ${1}:"
|
|
out=$(pstree -p -a $1)
|
|
echo "$out"
|
|
|
|
# Check for processes matching a regular expression and print
|
|
# stack staces. This could help confirm that certain processes
|
|
# are stuck in certain places such as the cluster filesystem. The
|
|
# regexp must separate items with "|" and must not contain
|
|
# parentheses. The default pattern can be replaced for testing.
|
|
default_pat='exportfs|rpcinfo'
|
|
pat="${CTDB_DEBUG_HUNG_SCRIPT_STACKPAT:-${default_pat}}"
|
|
echo "$out" |
|
|
sed -r -n "s@.*-(.*(${pat}).*),([0-9]*).*@\3 \1@p" |
|
|
while read pid name ; do
|
|
trace=$(cat "/proc/${pid}/stack" 2>/dev/null)
|
|
if [ $? -eq 0 ] ; then
|
|
echo "---- Stack trace of interesting process ${pid}[${name}] ----"
|
|
echo "$trace"
|
|
fi
|
|
done
|
|
|
|
if [ "$2" != "init" ] ; then
|
|
echo "---- ctdb scriptstatus ${2}: ----"
|
|
ctdb scriptstatus "$2"
|
|
fi
|
|
|
|
echo "===== End of hung script debug for PID=\"$1\", event=\"$2\" ====="
|
|
|
|
if [ -n "$CTDB_DEBUG_HUNG_SCRIPT_LOGFILE" ] ; then
|
|
mv "$tmp" "$CTDB_DEBUG_HUNG_SCRIPT_LOGFILE"
|
|
fi
|
|
|
|
) 9>"${CTDB_VARDIR}/debug-hung-script.lock"
|