From eaf9fdde99af84ca89baf37432dfe985ee7b1385 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Thu, 10 Sep 2020 19:51:03 -0700
Subject: [PATCH] avoid sharing context over separate goroutine

---
 weed/wdclient/exclusive_locks/exclusive_locker.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/weed/wdclient/exclusive_locks/exclusive_locker.go b/weed/wdclient/exclusive_locks/exclusive_locker.go
index 801de14ce..d477a6b2d 100644
--- a/weed/wdclient/exclusive_locks/exclusive_locker.go
+++ b/weed/wdclient/exclusive_locks/exclusive_locker.go
@@ -74,9 +74,12 @@ func (l *ExclusiveLocker) RequestLock() {
 
 	// start a goroutine to renew the lease
 	go func() {
+		ctx2, cancel2 := context.WithCancel(context.Background())
+		defer cancel2()
+
 		for l.isLocking {
 			if err := l.masterClient.WithClient(func(client master_pb.SeaweedClient) error {
-				resp, err := client.LeaseAdminToken(ctx, &master_pb.LeaseAdminTokenRequest{
+				resp, err := client.LeaseAdminToken(ctx2, &master_pb.LeaseAdminTokenRequest{
 					PreviousToken:    atomic.LoadInt64(&l.token),
 					PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
 					LockName:         AdminLockName,