From c17afcc36709265f4907e773d6b01030415c0542 Mon Sep 17 00:00:00 2001
From: Ke Wu <mikewu@google.com>
Date: Mon, 23 Jul 2018 11:49:09 -0700
Subject: [PATCH] [PATCH] Change Docker log line max size to 100kB

(From https://chromium-review.googlesource.com/744310 )

Start from docker-1.13, Docker added a limit that the max size for one
log line is 16k. And log entries longer than 16k will be split to
multiple lines. This breaks some COS users using Stackdriver because of
the fragmented log lines and broken jsons. This CL increases the max size
for one log line from 16k to 100k so it aligns with Stackdriver limit:
https://cloud.google.com/logging/quotas.

BUG=b:65671098
TEST=Ran instance locally and verified log entry split to lines when size > 100k
RELEASE_NOTE=Increase Docker log line max size from 16KB to 100kB
---
 components/engine/daemon/logger/copier.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/engine/daemon/logger/copier.go b/components/engine/daemon/logger/copier.go
index e24272f..8f20457 100644
--- a/components/engine/daemon/logger/copier.go
+++ b/components/engine/daemon/logger/copier.go
@@ -18,7 +18,7 @@ const (
 
 	// defaultBufSize provides a reasonable default for loggers that do
 	// not have an external limit to impose on log line size.
-	defaultBufSize = 16 * 1024
+	defaultBufSize = 100 * 1024
 )
 
 // Copier can copy logs from specified sources to Logger and attach Timestamp.
-- 
2.18.0.233.g985f88cf7e-goog