riak -> graphite stats cron job

riak_graphite_stats.sh

#!/bin/bash
# *  *    * * *   root    /path/to/riak_graphite_stats.sh
set -e
SOURCE=$(hostname)
GRAPHITE_PORT=2003
GRAPHITE_SERVER="server"
PREFIX="riak_stats"

STATUS=$(/usr/sbin/riak-admin status)

VARIABLES=("cpu_nprocs" "sys_process_count" "pbc_active" \
  "node_get_fsm_time_mean" "node_get_fsm_time_median" "node_get_fsm_time_95" "node_get_fsm_time_99" "node_get_fsm_time_100" \
  "node_put_fsm_time_mean" "node_put_fsm_time_median" "node_put_fsm_time_95" "node_put_fsm_time_99" "node_put_fsm_time_100")

COUNT_VARIABLES=("vnode_gets" "vnode_puts" "read_repairs" "node_gets" "node_puts" "pbc_connects")

DATE=$(date +%s)

function write_stat() {
    local STAT=$1
    local SUFFIX=$2

    RE_PREFIX=$'(\n|^)'
    RE_SUFFIX=$' : ([^\n]*)'

    RE="$RE_PREFIX$STAT$RE_SUFFIX"

    if [[ "$STATUS" =~ $RE ]]; then
      VALUE=${BASH_REMATCH[2]}
      echo "$PREFIX.$SOURCE.$STAT$SUFFIX $VALUE $DATE" | nc ${GRAPHITE_SERVER} ${GRAPHITE_PORT}
    fi
}

for STAT in ${VARIABLES[@]}; do
  write_stat $STAT  ""
done

for STAT in ${COUNT_VARIABLES[@]}; do
  write_stat $STAT ".count"
done