From 2e58f54a263a741dbdd6bd959e608f463186a82e Mon Sep 17 00:00:00 2001 From: Ryan Breen Date: Wed, 17 Dec 2014 22:24:41 -0500 Subject: [PATCH] Well, that sure is cleaner. --- command/agent/check.go | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) diff --git a/command/agent/check.go b/command/agent/check.go index 82b8c84f61..ad2c35dbd3 100644 --- a/command/agent/check.go +++ b/command/agent/check.go @@ -5,7 +5,6 @@ import ( "github.com/armon/circbuf" "github.com/hashicorp/consul/consul/structs" "log" - "math/rand" "os/exec" "sync" "syscall" @@ -92,29 +91,11 @@ func (c *CheckMonitor) Stop() { } } -// getInitialPauseTime returns the random duration we should wait before starting this CheckMonitor, -// preventing potentially large numbers of checks from firing concurrently by staggering their starts. -func (c *CheckMonitor) getInitialPauseTime() time.Duration { - var initialPauseTime time.Duration - intervalSeconds := int(c.Interval.Seconds()) - if intervalSeconds > 0 { - // If the check interval is greater than 500ms, as it will be in all real-world cases due to the - // application of MinInterval, start after some random number of seconds between 0 and c.Interval - initialPauseTime = time.Duration(rand.Intn(intervalSeconds)) * time.Second - } else { - // Test cases may use sub-second intervals. In this case, return 0 as the pause duration. - initialPauseTime = time.Duration(0) - } - return initialPauseTime -} - // run is invoked by a goroutine to run until Stop() is called func (c *CheckMonitor) run() { - // Get the randomized initial pause time - initialPauseTime := c.getInitialPauseTime() - - c.Logger.Printf("[DEBUG] agent: pausing %ds before first invocation of %s", initialPauseTime, c.Script) + initialPauseTime := randomStagger(c.Interval) + c.Logger.Printf("[DEBUG] agent: pausing %ds before first invocation of %s", int(initialPauseTime.Seconds()), c.Script) next := time.After(initialPauseTime) for { select {