owner: add log when etcd watch meet cancel (pingcap#57154)

lhy1024 · zeminzhou · commit c84624e27595 · 2025-05-06T14:00:06.000+08:00
close pingcap#57166
diff --git a/pkg/owner/manager.go b/pkg/owner/manager.go
@@ -597,7 +597,7 @@ func (m *ownerManager) watchOwner(ctx context.Context, etcdSession *concurrency.
 			}
 			if resp.Canceled {
 				metrics.WatchOwnerCounter.WithLabelValues(m.prompt, metrics.Cancelled).Inc()
-				logger.Info("watch canceled, no owner")
+				logger.Info("watch canceled, no owner", zap.Error(resp.Err()))
 				return errors.Errorf("watch canceled, key: %v", key)
 			}
 

Original file line number	Diff line number	Diff line change
`@@ -597,7 +597,7 @@ func (m ownerManager) watchOwner(ctx context.Context, etcdSession concurrency.`
`597`	`597`	`}`
`598`	`598`	`if resp.Canceled {`
`599`	`599`	`metrics.WatchOwnerCounter.WithLabelValues(m.prompt, metrics.Cancelled).Inc()`
`600`		`- logger.Info("watch canceled, no owner")`
	`600`	`+ logger.Info("watch canceled, no owner", zap.Error(resp.Err()))`
`601`	`601`	`return errors.Errorf("watch canceled, key: %v", key)`
`602`	`602`	`}`
`603`	`603`