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/6b8607d0 Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/6b8607d0 Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/6b8607d0 Branch: refs/heads/HDFS-10467 Commit: 6b8607d03fe78993743fabc7ea920bf0935500c9 Parents: 26f5552 Author: Xiaobing Zhou <[email protected]> Authored: Wed Apr 5 15:33:08 2017 -0700 Committer: Inigo <[email protected]> Committed: Thu Apr 6 18:58:23 2017 -0700 ---------------------------------------------------------------------- .../hadoop-hdfs/src/site/markdown/ArchivalStorage.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/6b8607d0/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md ---------------------------------------------------------------------- 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 56a2ab8..91ad107 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md +++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ArchivalStorage.md @@ -98,7 +98,7 @@ The effective storage policy can be retrieved by the "[`storagepolicies -getStor 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 doesnât have the target storage type) then it will copy the block replicas to another node over the network. * Command: --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
