From eb6cfd22a72970dfdab0314d4f1bd3038d3b88c7 Mon Sep 17 00:00:00 2001
From: Jens Langhammer <jens.langhammer@beryju.org>
Date: Fri, 29 Apr 2022 10:03:37 +0200
Subject: [PATCH] internal: fix high cpu when backend isnt healthy

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
---
 internal/gounicorn/gounicorn.go | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/internal/gounicorn/gounicorn.go b/internal/gounicorn/gounicorn.go
index f41f219b3..a63cc43ac 100644
--- a/internal/gounicorn/gounicorn.go
+++ b/internal/gounicorn/gounicorn.go
@@ -83,14 +83,20 @@ func (g *GoUnicorn) healthcheck() {
 
 	// Default healthcheck is every 1 second on startup
 	// once we've been healthy once, increase to 30 seconds
-	for range time.Tick(time.Second) {
-		if check() {
-			g.log.Info("backend is alive, backing off with healthchecks")
-			g.HealthyCallback()
-			break
+	func() {
+		for {
+			select {
+			case <-time.Tick(1 * time.Second):
+				if check() {
+					g.log.Info("backend is alive, backing off with healthchecks")
+					g.HealthyCallback()
+					return
+				} else {
+					g.log.Debug("backend not alive yet")
+				}
+			}
 		}
-		g.log.Debug("backend not alive yet")
-	}
+	}()
 	for range time.Tick(30 * time.Second) {
 		check()
 	}