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HBASE-22010 Upgrade to 2.2 section header can't use spaces. 

Signed-off-by: Guanghao Zhang <zghao@apache.org>
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Sean Busbey 2019-03-07 20:44:20 -06:00
parent 6e3987cf02
commit 3d269cb37a
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src/main/asciidoc/_chapters/upgrading.adoc
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@ -314,7 +314,7 @@ Quitting...
== Upgrade Paths
[[upgrade 2.2]]
[[upgrade2.2]]
=== Upgrade from 2.0 or 2.1 to 2.2+
HBase 2.2+ uses a new Procedure form assiging/unassigning/moving Regions. It does not process HBase 2.1 and 2.0's Unassign/Assign Procedure types. Upgrade requires that we first drain the Master Procedure Store of old style Procedures before starting the new 2.2 Master. So you need to make sure that before you kill the old version (2.0 or 2.1) Master, there is no region in transition. And once the new version (2.2+) Master is up, you can rolling upgrade RegionServers one by one.