modules/private/monitoring/plugins/check_postgres_replication

   1 #!/bin/bash
   2
   3 STATE_OK=0
   4 STATE_WARNING=1
   5 STATE_CRITICAL=2
   6 STATE_UNKNOWN=3
   7
   8 user=$1
   9 host=$2
  10 port=$3
  11
  12 lag=$(psql -h $host -p $port -A -t -c "SELECT COALESCE(EXTRACT(EPOCH FROM replay_lag),0) FROM pg_stat_replication WHERE usename='$user'" 2>/dev/null)
  13 exit_code=$?
  14
  15 if [[ $exit_code -ne 0 ]]; then
  16   echo "UNKNOWN - Impossible to run psql command"
  17   exit $STATE_UNKNOWN
  18 elif [[ -z "$lag" ]]; then
  19   echo "UNKNOWN - No replication found for $user"
  20   exit $STATE_UNKNOWN
  21 else
  22   output="Replication lag for $user is ${lag}s"
  23   LC_ALL=C lag=$(printf "%.*f" 0 $lag)
  24
  25   if [[ $lag -lt 5 ]]; then
  26     echo "OK - $output | time=${lag}s;5;10;0;"
  27     exit $STATE_OK
  28   elif [[ $lag -lt 10 ]]; then
  29     echo "WARNING - $output | time=${lag}s;5;10;0;"
  30     exit $STATE_WARNING
  31   else
  32     echo "CRITICAL - $output | time=${lag}s;5;10;0;"
  33     exit $STATE_CRITICAL
  34   fi
  35 fi