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From Daniel Haviv <danielru...@gmail.com>
Subject Re: Managing an existing cluster
Date Tue, 27 Jan 2015 19:46:03 GMT
I suspected so :)

Thank you.

Daniel

> On 27 בינו׳ 2015, at 21:41, Benoit Perroud <benoit@noisette.ch> wrote:
> 
> Not really.
> 
> What you can do though is replace few components at the time, like starting with zookeeper,
HDFS, etc and reduce the downtime.
> 
> CDH5.3 and HDP 2.2 /should/ (no guarantee here) be protocol compatible with HDFS, which
means you could be able to stop HDFS from CDH, start with the same fsimage and datanode datadir
the HDP version and run finalize metadata upgrade, saving lots of migration time (i.e. copying
all the data from CDH:hftp to HDP:hdfs, requiring double capacity).
> 
> Benoit
> 
> 
> 2015-01-27 19:31 GMT+01:00 Daniel Haviv <danielrulez@gmail.com>:
>>> Hi,
>>> We have a cluster that was manually installed using CDH rpms that we want to
manage using Ambari.
>>> Is it possible to somehow manage an existing running cluster?
>>> 
>>> Thanks,
>>> Daniel
> 

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