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

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tedyu 2018-11-05 18:59:44 -08:00
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src/main/asciidoc/_chapters/backup_restore.adoc
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@ -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 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. 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]] [[br.terminology]]
== Terminology == Terminology