Difference between revisions of "Plugin:exec-redis.sh"
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* http://code.google.com/p/redis/<br />Homepage of ''Redis'' | * http://code.google.com/p/redis/<br />Homepage of ''Redis'' | ||
* {{Plugin|Python}} based implementation in the {{Github|powdahound|redis-collectd-plugin}}. | * {{Plugin|Python}} based implementation in the {{Github|powdahound|redis-collectd-plugin}}. | ||
| + | * C-based implementation at [[Plugin:Redis]]. | ||
[[Category:Exec Plugins]] | [[Category:Exec Plugins]] | ||
{{DEFAULTSORT:Exec-munin.px}} | {{DEFAULTSORT:Exec-munin.px}} | ||
Revision as of 22:46, 5 August 2010
| exec-redis.sh plugin | |
|---|---|
| Type: | read |
| Callbacks: | n/a |
| Status: | external |
| First version: | n/a |
| Copyright: | 2010 Astro |
| License: | unknown |
| Manpage: | n/a |
| List of Plugins | |
The exec-redis.sh plugin reads statistics from Redis, a high-performance NoSQL data structure server with persistent storage.
Code
Create /etc/collectd/redis.sh and make it executable:
#!/bin/bash
HOSTNAME="${COLLECTD_HOSTNAME:-`hostname -f`}"
INTERVAL="${COLLECTD_INTERVAL:-10}"
PORT=6379
while sleep "$INTERVAL"
do
info=$(echo info|nc -w 1 127.0.0.1 $PORT)
connected_clients=$(echo "$info"|awk -F : '$1 == "connected_clients" {print $2}')
connected_slaves=$(echo "$info"|awk -F : '$1 == "connected_slaves" {print $2}')
uptime=$(echo "$info"|awk -F : '$1 == "uptime_in_seconds" {print $2}')
used_memory=$(echo "$info"|awk -F ":" '$1 == "used_memory" {print $2}'|sed -e 's/\r//')
changes_since_last_save=$(echo "$info"|awk -F : '$1 == "changes_since_last_save" {print $2}')
total_commands_processed=$(echo "$info"|awk -F : '$1 == "total_commands_processed" {print $2}')
keys=$(echo "$info"|egrep -e "^db0"|sed -e 's/^.\+:keys=//'|sed -e 's/,.\+//')
echo "PUTVAL $HOSTNAME/redis-$PORT/memcached_connections-clients interval=$INTERVAL N:$connected_clients"
echo "PUTVAL $HOSTNAME/redis-$PORT/memcached_connections-slaves interval=$INTERVAL N:$connected_slaves"
echo "PUTVAL $HOSTNAME/redis-$PORT/uptime interval=$INTERVAL N:$uptime"
echo "PUTVAL $HOSTNAME/redis-$PORT/df-memory interval=$INTERVAL N:$used_memory:U"
echo "PUTVAL $HOSTNAME/redis-$PORT/files-unsaved_changes interval=$INTERVAL N:$changes_since_last_save"
echo "PUTVAL $HOSTNAME/redis-$PORT/memcached_command-total interval=$INTERVAL N:$total_commands_processed"
echo "PUTVAL $HOSTNAME/redis-$PORT/memcached_items-db0 interval=$INTERVAL N:$keys"
done
Configuration
Configure the Exec plugin:
<Plugin exec> Exec nobody "/etc/collectd/redis.sh" </Plugin>
Example graph
Dependencies
- nc(1) (netcat)
- awk(1)
See also
- http://code.google.com/p/redis/
Homepage of Redis - Python plugin based implementation in the
powdahound/redis-collectd-plugin. - C-based implementation at Plugin:Redis.
