Hi everyone,
We are evaluating the upgrade of our Hbase solution from Hbase 2.2.6 to version 
2.4.x (last stable version).The doc 
https://github.com/apache/hbase/blob/master/src/main/asciidoc/_chapters/upgrading.adoc
 says there are no considerations for upgrading from version 2.2.x to version 
2.3.x.Does this also apply to upgrades from 2.2.x to 2.4.x?
Also, what is the correct procedure for updating Hbase?From what I have learned 
from my tests in development, the procedure would be as follows.- Creating the 
backup of the / hbase folder on hdfs- Update and restart of backup nodes 
(Changing the syslink with the new code)- Update and restart of master node 
(Changing the syslink with the new code)- Regionserver update and restart 
(Changing the syslink with the new code)
 Are you able to confirm this procedure?

Note: For zookeeper we use a separate installation and the embedded version 
present in hbase is not used


Furthermore we would also like to update hadoop from 2.8.5 to 2.10.2. In this 
case it is necessary to keep hbase off while updating hadoop, correct?
Thanks in advance,
Hamado Dene

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