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From a..@apache.org
Subject [2/2] hadoop git commit: HDFS-11628. Clarify the behavior of HDFS Mover in documentation. Contributed by Xiaobing Zhou.
Date Wed, 05 Apr 2017 22:34:55 GMT
HDFS-11628. Clarify the behavior of HDFS Mover in documentation. Contributed by Xiaobing Zhou.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/ea38aa72
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/ea38aa72
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/ea38aa72

Branch: refs/heads/branch-2.7
Commit: ea38aa727ac67b9db0ff0b500f6a99ed44ab0bc4
Parents: 79f7bfb
Author: Xiaobing Zhou <xiaobingo@apache.org>
Authored: Wed Apr 5 15:33:08 2017 -0700
Committer: Arpit Agarwal <arp@apache.org>
Committed: Wed Apr 5 15:34:40 2017 -0700

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 .../hadoop-hdfs/src/site/markdown/ArchivalStorage.md               | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/ea38aa72/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md
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diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md
index 8eb89bf..b996d48 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md
@@ -107,7 +107,7 @@ The effective storage policy can be retrieved by the "[`dfsadmin -getStoragePoli
 Mover - A New Data Migration Tool
 ---------------------------------
 
-A new data migration tool is added for archiving data. The tool is similar to Balancer. It
periodically scans the files in HDFS to check if the block placement satisfies the storage
policy. For the blocks violating the storage policy, it moves the replicas to a different
storage type in order to fulfill the storage policy requirement.
+A new data migration tool is added for archiving data. The tool is similar to Balancer. It
periodically scans the files in HDFS to check if the block placement satisfies the storage
policy. For the blocks violating the storage policy, it moves the replicas to a different
storage type in order to fulfill the storage policy requirement. Note that it always tries
to move block replicas within the same node whenever possible. If that is not possible (e.g.
when a node doesn’t have the target storage type) then it will copy the block replicas to
another node over the network.
 
 * Command:
 


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