From b0560e0624756e2b3ce7b6bc741eee3c18d2a873 Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Tue, 4 Jul 2017 14:02:14 +0900
Subject: [PATCH] HDFS-12079. Description of dfs.block.invalidate.limit is
 incorrect in hdfs-default.xml. Contributed by Weiwei Yang.

---
 .../hadoop-hdfs/src/main/resources/hdfs-default.xml          | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
index be345afdc04..96c04f0ba4e 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
@@ -3375,7 +3375,10 @@
   <name>dfs.block.invalidate.limit</name>
   <value>1000</value>
   <description>
-    Limit on the list of invalidated block list kept by the Namenode.
+    The maximum number of invalidate blocks sent by namenode to a datanode
+    per heartbeat deletion command. This property works with
+    "dfs.namenode.invalidate.work.pct.per.iteration" to throttle block
+    deletions.
   </description>
 </property>