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From "Nate Cole" <nc...@hortonworks.com>
Subject Re: Review Request 36665: RU - Use haadmin failover command instead of killing ZKFC during upgrade/downgrade
Date Wed, 22 Jul 2015 21:03:35 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/36665/#review92653
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Ship it!


Ship It!

- Nate Cole


On July 22, 2015, 4:57 p.m., Alejandro Fernandez wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/36665/
> -----------------------------------------------------------
> 
> (Updated July 22, 2015, 4:57 p.m.)
> 
> 
> Review request for Ambari, Dmitro Lisnichenko, Jonathan Hurley, Nate Cole, and Srimanth
Gunturi.
> 
> 
> Bugs: AMBARI-12488
>     https://issues.apache.org/jira/browse/AMBARI-12488
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Currently RU orchestration during upgrade/downgrade kills ZKFC on the active NameNode
to initiate a failover to standby. We should instead use the failover command.
> E.g.,
> 
> su hdfs -c 'hdfs haadmin -failover nn1 nn2'
> 
> 
> Diffs
> -----
> 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_namenode.py
827c03d 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py
b15bdc4 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/params_linux.py
94d5b43 
>   ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/utils.py
a185b5f 
>   ambari-server/src/main/resources/stacks/HDP/2.2/upgrades/upgrade-2.3.xml 5cc30b2 
>   ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/upgrade-2.3.xml ba16159 
> 
> Diff: https://reviews.apache.org/r/36665/diff/
> 
> 
> Testing
> -------
> 
> Tested this during an RU, in which the active NameNode did successfully initiate an ha
failover by calling the command.
> 
> Python unit tests passed.
> 
> -----------------------------------------------------------------------
> Total run:803
> Total errors:0
> Total failures:0
> OK
> 
> 
> File Attachments
> ----------------
> 
> AMBARI-12488.additional.patch
>   https://reviews.apache.org/media/uploaded/files/2015/07/22/82f72b0f-e7fb-47af-beef-6ff8a6aa0b8b__AMBARI-12488.additional.patch
> 
> 
> Thanks,
> 
> Alejandro Fernandez
> 
>


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