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ac1c12b5a2
Some of these just aim to load the generic script.options file while others target more specific files. For NFS configuration, always use 60.nfs.options - even for 06.nfs. This could be carefully documented but will change a lot before release so there is no need. Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
62 lines
1.9 KiB
Bash
Executable File
62 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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# This script only works on Linux. Please modify (and submit patches)
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# for other operating systems.
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[ -n "$CTDB_BASE" ] || \
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CTDB_BASE=$(d=$(dirname "$0") ; cd -P "$d" ; echo "$PWD")
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. "${CTDB_BASE}/functions"
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load_script_options
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# Testing hook
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if [ -n "$CTDB_DEBUG_HUNG_SCRIPT_LOGFILE" ] ; then
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tmp="${CTDB_DEBUG_HUNG_SCRIPT_LOGFILE}.part"
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exec >>"$tmp" 2>&1
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fi
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(
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# No use running several of these in parallel if, say, "releaseip"
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# event hangs for multiple IPs. In that case the output would be
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# interleaved in the log and would just be confusing.
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flock --wait 2 9 || exit 1
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echo "===== Start of hung script debug for PID=\"$1\", event=\"$2\" ====="
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echo "pstree -p -a ${1}:"
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out=$(pstree -p -a "$1")
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echo "$out"
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# Check for processes matching a regular expression and print
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# stack staces. This could help confirm that certain processes
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# are stuck in certain places such as the cluster filesystem. The
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# regexp must separate items with "|" and must not contain
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# parentheses. The default pattern can be replaced for testing.
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default_pat='exportfs|rpcinfo'
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pat="${CTDB_DEBUG_HUNG_SCRIPT_STACKPAT:-${default_pat}}"
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echo "$out" |
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sed -r -n "s@.*-(.*(${pat}).*),([0-9]*).*@\\3 \\1@p" |
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while read pid name ; do
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trace=$(cat "/proc/${pid}/stack" 2>/dev/null)
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# No! Checking the exit code afterwards is actually clearer...
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# shellcheck disable=SC2181
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if [ $? -eq 0 ] ; then
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echo "---- Stack trace of interesting process ${pid}[${name}] ----"
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echo "$trace"
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fi
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done
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if [ "$2" != "init" ] ; then
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echo "---- ctdb scriptstatus ${2}: ----"
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$CTDB scriptstatus "$2"
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fi
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echo "===== End of hung script debug for PID=\"$1\", event=\"$2\" ====="
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if [ -n "$CTDB_DEBUG_HUNG_SCRIPT_LOGFILE" ] ; then
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mv "$tmp" "$CTDB_DEBUG_HUNG_SCRIPT_LOGFILE"
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fi
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) 9>"${CTDB_SCRIPT_VARDIR}/debug-hung-script.lock"
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