From 2093eefd6ada1a1c90772f2f6d6eaccc1e19eb30 Mon Sep 17 00:00:00 2001
From: P2YH <biggoldroc@gmail.com>
Date: Thu, 25 Jul 2024 19:35:06 +0800
Subject: [PATCH] fix OOM

Calling electionHandler.Observe(e.ctx) within a for loop continuously creates goroutines, leading to an OOM (Out Of Memory) issue.
---
 elector.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/elector.go b/elector.go
index c79d6c6..b0b62bd 100644
--- a/elector.go
+++ b/elector.go
@@ -189,9 +189,10 @@ func (e *Elector) Start(electionPath string) error {
 		e.unsetLeader("")
 	}()
 
+	ch := electionHandler.Observe(e.ctx)
 	for e.ctx.Err() == nil {
 		select {
-		case resp := <-electionHandler.Observe(e.ctx):
+		case resp := <-ch:
 			if len(resp.Kvs) == 0 {
 				continue
 			}