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samba-mirror/ctdb/tests/complex/37_nfs_reset_server.sh
Martin Schwenke 0dce39e278 ctdb-tests: Add tests to ensure reset of server end of connections
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2017-09-01 00:13:06 +02:00

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#!/bin/bash
test_info()
{
cat <<EOF
Verify that the server end of an NFS connection is correctly reset
Prerequisites:
* An active CTDB cluster with at least 2 nodes with public addresses.
* Test must be run on a real or virtual cluster rather than against
local daemons.
* Test must not be run from a cluster node.
* Cluster nodes must be listening on the NFS TCP port (2049).
Expected results:
* CTDB should correctly record the connection and the releasing node
should reset the server end of the connection.
EOF
}
. "${TEST_SCRIPTS_DIR}/integration.bash"
set -e
ctdb_test_init "$@"
ctdb_test_check_real_cluster
cluster_is_healthy
# Reset configuration
ctdb_restart_when_done
# We need this for later, so we know how long to sleep.
try_command_on_node 0 $CTDB getvar MonitorInterval
monitor_interval="${out#*= }"
select_test_node_and_ips
test_port=2049
echo "Set NoIPTakeover=1 on all nodes"
try_command_on_node all $CTDB setvar NoIPTakeover 1
echo "Give the recovery daemon some time to reload tunables"
sleep_for 5
echo "Connecting to node ${test_node} on IP ${test_ip}:${test_port} with nc..."
nc -d -w $(($monitor_interval * 4)) $test_ip $test_port &
nc_pid=$!
ctdb_test_exit_hook_add "kill $nc_pid >/dev/null 2>&1"
wait_until_get_src_socket "tcp" "${test_ip}:${test_port}" $nc_pid "nc"
src_socket="$out"
echo "Source socket is $src_socket"
echo "Wait until NFS connection is tracked by CTDB on test node ..."
wait_until $((monitor_interval * 2)) \
check_tickles $test_node $test_ip $test_port $src_socket
echo "$out"
# It would be nice if ss consistently used local/peer instead of src/dst
ss_filter="src ${test_ip}:${test_port} dst ${src_socket}"
try_command_on_node $test_node \
"ss -tn state established '${ss_filter}' | tail -n +2"
if [ -z "$out" ] ; then
echo "BAD: ss did not list the socket"
exit 1
fi
echo "GOOD: ss lists the socket:"
echo "$out"
echo "Disabling node $test_node"
try_command_on_node 1 $CTDB disable -n $test_node
wait_until_node_has_status $test_node disabled
try_command_on_node $test_node \
"ss -tn state established '${ss_filter}' | tail -n +2"
if [ -n "$out" ] ; then
echo "BAD: ss listed the socket after failover"
exit 1
fi
echo "GOOD: ss no longer lists the socket"