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From "Jonathan Hurley" <jhur...@hortonworks.com>
Subject Re: Review Request 30813: RU - HDFS downgrade needs skip HDFS prepare step
Date Tue, 10 Feb 2015 20:47:12 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/30813/#review71853
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Ship it!


Ship It!

- Jonathan Hurley


On Feb. 10, 2015, 2:58 p.m., Alejandro Fernandez wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/30813/
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> 
> (Updated Feb. 10, 2015, 2:58 p.m.)
> 
> 
> Review request for Ambari, Dmitro Lisnichenko, Jonathan Hurley, Nate Cole, Tom Beerbower,
and Yurii Shylov.
> 
> 
> Bugs: AMBARI-9541
>     https://issues.apache.org/jira/browse/AMBARI-9541
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Rolling Upgrade down grade is the same as the upgrade, with the exception that the "hdfs
dfsadmin -rollingUpgrade prepare" command does not need to be ran.
> 
> 
> Diffs
> -----
> 
>   ambari-common/src/main/python/resource_management/core/constants.py PRE-CREATION 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/namenode_upgrade.py
f74d874 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/params.py
69cd157 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/utils.py
154e6e3 
>   ambari-server/src/main/resources/common-services/OOZIE/4.0.0.2.0/package/scripts/oozie_server_upgrade.py
59edd2e 
> 
> Diff: https://reviews.apache.org/r/30813/diff/
> 
> 
> Testing
> -------
> 
> Deployed a 3-node cluster with NamenodeHA, and only HDFS and ZK, then caused a failure
on Datanode, performed a downgrade, and it correctly got to Finalize.
> 
> Unit tests passed on ABO.
> 
> 
> Thanks,
> 
> Alejandro Fernandez
> 
>


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