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 > >
