From f94b53d69a75ff734747bde16360467ccd1da0b3 Mon Sep 17 00:00:00 2001
From: Ayush Saxena <ayushsaxena@apache.org>
Date: Wed, 26 May 2021 23:11:21 +0530
Subject: [PATCH] HDFS-15916. Addendum. DistCp: Backward compatibility: Distcp
 fails from Hadoop 3 to Hadoop 2 for snapshotdiff.

---
 .../java/org/apache/hadoop/hdfs/DistributedFileSystem.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
index eda92be12c627..e67a4fa7d6183 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
@@ -2395,7 +2395,8 @@ private SnapshotDiffReport getSnapshotDiffReportInternal(
       } catch (RpcNoSuchMethodException e) {
         // In case the server doesn't support getSnapshotDiffReportListing,
         // fallback to getSnapshotDiffReport.
-        LOG.warn("Falling back to getSnapshotDiffReport {}", e.getMessage());
+        DFSClient.LOG.warn(
+            "Falling back to getSnapshotDiffReport {}", e.getMessage());
         return dfs.getSnapshotDiffReport(snapshotDir, fromSnapshot, toSnapshot);
       }
       startPath = report.getLastPath();