From 46830a3c8fdecc36e430802738de0c535c967ace Mon Sep 17 00:00:00 2001
From: Armon Dadgar <armon.dadgar@gmail.com>
Date: Thu, 20 Feb 2014 13:51:51 -0800
Subject: [PATCH] agent: Enable dumping telemetry on SIGUSR1

---
 command/agent/command.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/command/agent/command.go b/command/agent/command.go
index f3fc96457..641a43110 100644
--- a/command/agent/command.go
+++ b/command/agent/command.go
@@ -3,6 +3,7 @@ package agent
 import (
 	"flag"
 	"fmt"
+	"github.com/armon/go-metrics"
 	"github.com/hashicorp/logutils"
 	"github.com/mitchellh/cli"
 	"io"
@@ -187,6 +188,16 @@ func (c *Command) Run(args []string) int {
 		return 1
 	}
 
+	/* Setup telemetry
+	Aggregate on 10 second intervals for 1 minute. Expose the
+	metrics over stderr when there is a SIGUSR1 received.
+	*/
+	inm := metrics.NewInmemSink(10*time.Second, time.Minute)
+	metrics.DefaultInmemSignal(inm)
+	metricsConf := metrics.DefaultConfig("consul")
+	metricsConf.EnableHostname = false
+	metrics.NewGlobal(metricsConf, inm)
+
 	// Create the agent
 	if err := c.setupAgent(config, logOutput, logWriter); err != nil {
 		return 1