Merge pull request #12076 from cfc4n/automated-cherry-pick-of-#11987-…

…upstream-release-3.4 Automated cherry pick of #11987
etcd-io · Jul 6, 2020 · 2acdf88 · 2acdf88
2 parents a8454e4 + 7b99863
commit 2acdf88
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/mvcc/watchable_store.go b/mvcc/watchable_store.go
@@ -30,9 +30,8 @@ import (
 var (
 	// chanBufLen is the length of the buffered chan
 	// for sending out watched events.
-	// TODO: find a good buf value. 1024 is just a random one that
-	// seems to be reasonable.
-	chanBufLen = 1024
+	// See https://github.com/etcd-io/etcd/issues/11906 for more detail.
+	chanBufLen = 128
 
 	// maxWatchersPerSync is the number of watchers to sync in a single batch
 	maxWatchersPerSync = 512