Difference between revisions of "Plugin:exec-redis.sh"
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| − | [ | + | {{Infobox Plugin |
| + | | Name=exec-redis.sh | ||
| + | | Type=read | ||
| + | | Callbacks=''n/a'' | ||
| + | | Status=external | ||
| + | | FirstVersion=''n/a'' | ||
| + | | Copyright=''2010'' [[User:Astro|Astro]] | ||
| + | | License=''unknown'' | ||
| + | | Manpage=''n/a'' | ||
| + | }} | ||
| + | The '''exec-redis.sh plugin''' reads statistics from ''Redis'', a high-performance NoSQL data structure server with persistent storage. | ||
== Code == | == Code == | ||
| Line 5: | Line 15: | ||
<source lang="bash"> | <source lang="bash"> | ||
| − | + | #!/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 | |
</source> | </source> | ||
| − | Configure the | + | == Configuration == |
| + | |||
| + | Configure the {{Plugin|Exec}}: | ||
<Plugin exec> | <Plugin exec> | ||
Exec nobody "/etc/collectd/redis.sh" | Exec nobody "/etc/collectd/redis.sh" | ||
| Line 42: | Line 54: | ||
[[File:Plugin-exec-redis-commands.png]] | [[File:Plugin-exec-redis-commands.png]] | ||
| + | |||
| + | == Dependencies == | ||
| + | |||
| + | * ''nc(1)'' (netcat) | ||
| + | * ''awk(1)'' | ||
| + | |||
| + | == See also == | ||
| + | |||
| + | * http://code.google.com/p/redis/<br />Homepage of ''Redis'' | ||
| + | * {{Plugin|Python}} based implementation at {{Github | user=powdahound | repository=redis-collectd-plugin}}. | ||
| + | * C-based implementation at [[Plugin:Redis]]. | ||
| + | |||
| + | [[Category:Exec Plugins]] | ||
| + | {{DEFAULTSORT:Exec-munin.px}} | ||
Latest revision as of 11:04, 27 November 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 at
powdahound/redis-collectd-plugin. - C-based implementation at Plugin:Redis.
