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The
InfluxData TICK (Telegraf, InfluxDB, Chronograf, Kapacitor) provides a full set of integrated metrics tools, including an agent to export metrics (Telegraf), a time series database to collect and store the metrics (InfluxDB), a dashboard to display metrics (Chronograf), and a data processing engine (Kapacitor). Each of the tools is open sourced and can be used together or separately.
This article will show how industry standard
sFlow agents embedded within the data center infrastructure can provide Telegraf metrics to InfluxDB. The solution uses
sFlow-RT as a proxy to convert sFlow metrics into their Telegraf equivalent form so that they are immediately visible through the default Chronograf dashboards (
Using a proxy to feed metrics into Ganglia described a similar approach for sending metrics to Ganglia).
The following
telegraf.js script instructs sFlow-RT to periodically export host metrics to InfluxDB:
var influxdb = "http://10.0.0.56:8086/write?db=telegraf";
function sendToInfluxDB(msg) {
if(!msg || !msg.length) return;
var req = {
url:influxdb,
operation:'POST',
headers:{"Content-Type":"text/plain"},
body:msg.join('\n')
};
req.error = function(e) {
logWarning('InfluxDB POST failed, error=' + e);
}
try { httpAsync(req); }
catch(e) {
logWarning('bad request ' + req.url + ' ' + e);
}
}
var metric_names = [
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