From 577b96ef42f9927e82b33d4a672b40fd69b27a63 Mon Sep 17 00:00:00 2001
From: Wei-Chiu Chuang <weichiu@apache.org>
Date: Wed, 16 Jun 2021 20:37:56 -0700
Subject: [PATCH] HDFS-16074. Remove an expensive debug string concatenation
 (#3107)

Reviewed-by: Ayush Saxena <ayushsaxena@apache.org>
Reviewed-by: Akira Ajisaka <aajisaka@apache.org>
Reviewed-by: Inigo Goiri <inigoiri@apache.org>
Reviewed-by: Hui Fei <ferhui@apache.org>
Reviewed-by: Viraj Jasani <vjasani@apache.org>
Reviewed-by: litao <tomleescut@gmail.com>
(cherry picked from commit 1ad674e5489e6080f21c308673ecc73a54ba3752)
---
 .../main/java/org/apache/hadoop/hdfs/DFSOutputStream.java    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java
index 9003e51139..e07b24749b 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java
@@ -480,9 +480,10 @@ private synchronized void writeChunkPrepare(int buflen,
       currentPacket = createPacket(packetSize, chunksPerPacket, getStreamer()
           .getBytesCurBlock(), getStreamer().getAndIncCurrentSeqno(), false);
       DFSClient.LOG.debug("WriteChunk allocating new packet seqno={},"
-              + " src={}, packetSize={}, chunksPerPacket={}, bytesCurBlock={}",
+              + " src={}, packetSize={}, chunksPerPacket={}, bytesCurBlock={},"
+              + " output stream={}",
           currentPacket.getSeqno(), src, packetSize, chunksPerPacket,
-          getStreamer().getBytesCurBlock() + ", " + this);
+          getStreamer().getBytesCurBlock(), this);
     }
   }