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samba-mirror/ctdb/tests/simple/51_message_ring.sh
Martin Schwenke e7a220377e ctdb-tests: Clean up and rename simple message_ring test
* Rename to clarify purpose of test

* Simplify test info to avoid unnecessary bit-rot

* Have message_ring print PNN for clearer output and update patterns
  in test script to suit.

* Drop quantitative percentage check since this is hard to predict
  when under extreme load.  To compensate, tighten up expectations for
  the total number of messages in each direction: at least 10 messages
  are required over 10 seconds.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=12109

Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-08-08 08:17:32 +02:00

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#!/bin/bash
test_info()
{
cat <<EOF
Run the message_ring test and sanity check the output.
Prerequisites:
* An active CTDB cluster with at least 2 active nodes.
EOF
}
. "${TEST_SCRIPTS_DIR}/integration.bash"
ctdb_test_init "$@"
set -e
cluster_is_healthy
try_command_on_node 0 "$CTDB listnodes"
num_nodes=$(echo "$out" | wc -l)
echo "Running message_ring on all $num_nodes nodes."
try_command_on_node -v -p all $CTDB_TEST_WRAPPER $VALGRIND message_ring -n $num_nodes
# Get the last line of output.
while read line ; do
prev=$line
done <<<"$out"
pat='^(Waiting for cluster|Ring\[[[:digit:]]+\]: [[:digit:]]+(\.[[:digit:]]+)? msgs/sec \(\+ve=[[:digit:]]+ -ve=[[:digit:]]+\))$'
sanity_check_output 1 "$pat" "$out"
# $prev should look like this:
# Ring[1]: 10670.93 msgs/sec (+ve=53391 -ve=53373)
stuff="${prev##Ring\[*\]: }"
mps="${stuff% msgs/sec*}"
if [ ${mps%.*} -ge 10 ] ; then
echo "OK: $mps msgs/sec >= 10 msgs/sec"
else
echo "BAD: $mps msgs/sec < 10 msgs/sec"
exit 1
fi
stuff="${stuff#*msgs/sec (+ve=}"
positive="${stuff%% *}"
if [ $positive -ge 10 ] ; then
echo "OK: +ive ($positive) >= 10"
else
echo "BAD: +ive ($positive) < 10"
exit 1
fi
stuff="${stuff#*-ve=}"
negative="${stuff%)}"
if [ $negative -ge 10 ] ; then
echo "OK: -ive ($negative) >= 10"
else
echo "BAD: -ive ($negative) < 10"
exit 1
fi