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samba-mirror/ctdb/tests/INTEGRATION/simple/eventscripts.090.debug_hung.sh
Martin Schwenke 8b24cae630 ctdb-tests: Update preamble for INTEGRATION tests
* Use "#!/usr/bin/env bash" for improved portability

* Drop test_info() definition and replace it with a comment

  The use of test_info() is pointless.

* Drop call to cluster_is_healthy()

  This is a holdover from when the previous test would restart daemons
  to get things ready for a test.  There was also a bug where going
  into recovery during the restart would sometimes cause the cluster
  to become unhealthy.  If we really need something like this then we
  can add it to ctdb_test_init().

* Make order of preamble consistent

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2020-07-22 07:53:35 +00:00

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#!/usr/bin/env bash
# Verify CTDB's debugging of timed out eventscripts
. "${TEST_SCRIPTS_DIR}/integration.bash"
set -e
ctdb_test_skip_on_cluster
ctdb_test_init
select_test_node
####################
echo "Setting monitor events to time out..."
try_command_on_node $test_node 'echo $CTDB_BASE'
ctdb_base="$out"
script_options="${ctdb_base}/script.options"
ctdb_test_exit_hook_add "onnode $test_node rm -f $script_options"
debug_output="${ctdb_base}/debug-hung-script.log"
ctdb_test_exit_hook_add "onnode $test_node rm -f $debug_output"
try_command_on_node -i "$test_node" tee "$script_options" <<EOF
CTDB_RUN_TIMEOUT_MONITOR=yes
CTDB_DEBUG_HUNG_SCRIPT_LOGFILE='$debug_output'
CTDB_DEBUG_HUNG_SCRIPT_STACKPAT='exportfs|rpcinfo|sleep'
CTDB_SCRIPT_VARDIR='$ctdb_base'
EOF
####################
wait_for_monitor_event $test_node
echo "Waiting for debugging output to appear..."
# Use test -s because the file is created above using mktemp
wait_until 60 test -s "$debug_output"
echo
echo "Debugging output:"
cat "$debug_output"
echo
echo "Checking output of hung script debugging..."
# Can we actually read kernel stacks
if try_command_on_node $test_node "cat /proc/$$/stack >/dev/null 2>&1" ; then
stackpat='
---- Stack trace of interesting process [0-9]*\\[sleep\\] ----
[<[0-9a-f]*>] .*sleep+.*
'
else
stackpat=''
fi
while IFS="" read pattern ; do
[ -n "$pattern" ] || continue
if grep -q -- "^${pattern}\$" "$debug_output" ; then
printf 'GOOD: output contains "%s"\n' "$pattern"
else
printf 'BAD: output does not contain "%s"\n' "$pattern"
exit 1
fi
done <<EOF
===== Start of hung script debug for PID=".*", event="monitor" =====
===== End of hung script debug for PID=".*", event="monitor" =====
pstree -p -a .*:
00\\\\.test\\\\.script,.*
*\`-sleep,.*
${stackpat}
---- ctdb scriptstatus monitor: ----
00\\.test *TIMEDOUT.*
*OUTPUT: Sleeping for [0-9]* seconds\\\\.\\\\.\\\\.
EOF