[ 
https://issues.apache.org/jira/browse/HDFS-7849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

J.Andreina updated HDFS-7849:
-----------------------------
    Attachment: HDFS-7849.1.patch

Hi Tsz Wo Nicholas Sze,

If you have not started working on this , can i take up this jira. 
I have attached an initial patch for this. 

Can you please provide your feedback.

> Update documentation for enabling a new feature in rolling upgrade
> ------------------------------------------------------------------
>
>                 Key: HDFS-7849
>                 URL: https://issues.apache.org/jira/browse/HDFS-7849
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: documentation
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>            Priority: Minor
>         Attachments: HDFS-7849.1.patch
>
>
> When there is a new feature in a new software, the new feature may not work 
> correctly with the old software.  In such case, rolling upgrade should be 
> done by the following steps:
> # disable the new feature,
> # upgrade the cluster, and
> # enable the new feature.
> We should clarify it in the documentation.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to