From 4c9baba06629e3b3f8eddc52afb62c5fbcb06178 Mon Sep 17 00:00:00 2001
From: Chao Sun <sunchao@apache.org>
Date: Wed, 8 Aug 2018 13:09:39 -0700
Subject: [PATCH] HDFS-13789. Reduce logging frequency of
 QuorumJournalManager#selectInputStreams. Contributed by Erik Krogen.

---
 .../hadoop/hdfs/qjournal/client/QuorumJournalManager.java   | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/QuorumJournalManager.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/QuorumJournalManager.java
index 26590d5f6e..f96fe09782 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/QuorumJournalManager.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/QuorumJournalManager.java
@@ -498,8 +498,10 @@ public class QuorumJournalManager implements JournalManager {
     // the cache used for RPC calls is not enabled; fall back to using the
     // streaming mechanism to serve such requests
     if (inProgressOk && inProgressTailingEnabled) {
-      LOG.info("Tailing edits starting from txn ID " + fromTxnId +
-          " via RPC mechanism");
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("Tailing edits starting from txn ID " + fromTxnId +
+            " via RPC mechanism");
+      }
       try {
         Collection<EditLogInputStream> rpcStreams = new ArrayList<>();
         selectRpcInputStreams(rpcStreams, fromTxnId, onlyDurableTxns);