hbase git commit: HBASE-21381 Document the hadoop versions using which backup and restore feature works (liubang)

[te...@apache.org]

Repository: hbase
Updated Branches:
  refs/heads/master 01603278a -> 82ce14960


HBASE-21381 Document the hadoop versions using which backup and restore feature works (liubang)


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/82ce1496
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/82ce1496
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/82ce1496

Branch: refs/heads/master
Commit: 82ce149601f196e2e727908883bfb1b5a9d37319
Parents: 0160327
Author: tedyu <yu...@gmail.com>
Authored: Mon Nov 5 18:59:44 2018 -0800
Committer: tedyu <yu...@gmail.com>
Committed: Mon Nov 5 18:59:44 2018 -0800

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 src/main/asciidoc/_chapters/backup_restore.adoc | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
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http://git-wip-us.apache.org/repos/asf/hbase/blob/82ce1496/src/main/asciidoc/_chapters/backup_restore.adoc
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diff --git a/src/main/asciidoc/_chapters/backup_restore.adoc b/src/main/asciidoc/_chapters/backup_restore.adoc
index fbf9377..592faeb 100644
--- a/src/main/asciidoc/_chapters/backup_restore.adoc
+++ b/src/main/asciidoc/_chapters/backup_restore.adoc
@@ -50,6 +50,23 @@ restore feature is ideal for creating "cold" copies of data (where a manual step
 Previously, users only had the ability to create full backups via the ExportSnapshot functionality. The incremental
 backup implementation is the novel improvement over the previous "art" provided by ExportSnapshot.
 
+The backup and restore feature uses DistCp to transfer files between clusters .
+link:https://issues.apache.org/jira/browse/HADOOP-15850[HADOOP-15850] fixes a bug where CopyCommitter#concatFileChunks
+unconditionally tried to concatenate the files being DistCp'ed to target cluster (though the files are
+independent) . Without the fix from
+link:https://issues.apache.org/jira/browse/HADOOP-15850[HADOOP-15850] , the transfer would fail.
+So the backup and restore feature need hadoop version as below
+
+* 2.7.x
+* 2.8.x
+* 2.9.2+
+* 2.10.0+
+* 3.0.4+
+* 3.1.2+
+* 3.2.0+
+* 3.3.0+
+
+
 [[br.terminology]]
 == Terminology