I suspected so :)

Thank you.

Daniel

> On 27 בינו׳ 2015, at 21:41, Benoit Perroud <[email protected]> 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 <[email protected]>:
>>> 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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