Michelle/nagios-plugin-check_galera_cluster
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Add wsrep_flow_control_paused check

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If this value is > 0.1 usually there is a problem.
  Also add default exit value to UNKNOWN.
This commit is contained in:
Guillaume Coré
2013-04-24 18:03:39 -04:00
parent e547044a5c
commit f910d9e246
2 changed files with 23 additions and 3 deletions
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README.md
+3 -1
View File
@@ -6,7 +6,7 @@ Version 1.0, Guillaume Coré <g@fridim.org>
check_galera_cluster is a Nagios plugin to monitor Galera cluster status.
check_galera_cluster -u USER -p PASSWORD [-H HOST] [-P PORT] [-w SIZE] [-c SIZE] [-0]
check_galera_cluster -u USER -p PASSWORD [-H HOST] [-P PORT] [-w SIZE] [-c SIZE] [-f FLOAT] [-0]
Options:
u)
@@ -21,5 +21,7 @@ Version 1.0, Guillaume Coré <g@fridim.org>
Sets minimum number of nodes in the cluster when WARNING is raised. (default is same as critical).
c)
Sets minimum number of nodes in the cluster when CRITICAL is raised. (default is 2).
f)
Sets critical value of wsrep_flow_control_paused (default is 0.1).
0)
Rise CRITICAL if the node is not primary
check_galera_cluster
+20 -2
View File
@@ -7,6 +7,7 @@ ST_OK=0
ST_WR=1
ST_CR=2
ST_UK=3
ST_FINAL=$ST_UK
print_version() {
echo "$VERSION $AUTHOR"
@@ -17,7 +18,7 @@ print_help() {
echo ""
echo "$PROGNAME is a Nagios plugin to monitor Galera cluster status."
echo ""
echo "$PROGNAME -u USER -p PASSWORD [-H HOST] [-P PORT] [-w SIZE] [-c SIZE] [-0]"
echo "$PROGNAME -u USER -p PASSWORD [-H HOST] [-P PORT] [-w SIZE] [-c SIZE] [-f FLOAT] [-0]"
echo ""
echo "Options:"
echo " u)"
@@ -32,6 +33,8 @@ print_help() {
echo " Sets minimum number of nodes in the cluster when WARNING is raised. (default is same as critical)."
echo " c)"
echo " Sets minimum number of nodes in the cluster when CRITICAL is raised. (default is 2)."
echo " f)"
echo " Sets critical value of wsrep_flow_control_paused (default is 0.1)."
echo " 0)"
echo " Rise CRITICAL if the node is not primary"
exit $ST_UK
@@ -41,8 +44,9 @@ print_help() {
crit=2
port='3306'
mysqlhost='localhost'
fcp=0.1
while getopts “hvu:p:H:P:w:c:0” OPTION; do
while getopts “hvu:p:H:P:w:c:f:0” OPTION; do
case $OPTION in
h)
print_help
@@ -70,6 +74,9 @@ while getopts “hvu:p:H:P:w:c:0” OPTION; do
c)
crit=$OPTARG
;;
f)
fcp=$OPTARG
;;
0)
primary='TRUE'
;;
@@ -100,6 +107,17 @@ fi
r1=$(mysql -h$mysqlhost -P$port -u$mysqluser -p$password -e "show status like 'wsrep_cluster_size'"|grep wsrep_cluster_size|cut -f 2)
r2=$(mysql -h$mysqlhost -P$port -u$mysqluser -p$password -e "show status like 'wsrep_cluster_status'"|grep wsrep_cluster_status|cut -f 2)
r3=$(mysql -h$mysqlhost -P$port -u$mysqluser -p$password -e "show status like 'wsrep_flow_control_paused'"|grep wsrep_flow_control_paused|cut -f 2)
if [ -z "$r3" ]; then
echo "UNKNOWN: wsrep_flow_control_paused is empty"
ST_FINAL=$ST_UK
fi
if [ $(echo "$r3 > $fcp" | bc) = 1 ]; then
echo "CRITICAL: wsrep_flow_control_paused is > $fcp"
ST_FINAL=$ST_CR
fi
if [ "$primary" = 'TRUE' ]; then
if [ "$r2" != 'Primary' ]; then