From 095b45ab2157e80e41799e606b09c6c4dab3f5b6 Mon Sep 17 00:00:00 2001
From: Dominic Evans <dominic.evans@uk.ibm.com>
Date: Wed, 11 May 2022 18:24:07 +0100
Subject: [PATCH] fix: make default MaxWaitTime 500ms

Both the official Java client and librdkafka default to using a default
of 500ms for the fetch.max.wait.ms to avoid excessive network usage for
low throughput topics. Updating Sarama to do the same.
---
 config.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config.go b/config.go
index ef8bf8df6..4cb99232a 100644
--- a/config.go
+++ b/config.go
@@ -483,7 +483,7 @@ func NewConfig() *Config {
 	c.Consumer.Fetch.Min = 1
 	c.Consumer.Fetch.Default = 1024 * 1024
 	c.Consumer.Retry.Backoff = 2 * time.Second
-	c.Consumer.MaxWaitTime = 250 * time.Millisecond
+	c.Consumer.MaxWaitTime = 500 * time.Millisecond
 	c.Consumer.MaxProcessingTime = 100 * time.Millisecond
 	c.Consumer.Return.Errors = false
 	c.Consumer.Offsets.AutoCommit.Enable = true