@vbhoomireddy Ganglia - You can ignore and chance is that ambari is confusing with old ambari setup (Ganglia was part of ambari install until Ambari 1.7) rhnsub.noarch and mk-hpuniversal.x86_64 - As its warning ..you can ignore and proceed.
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@David Yee Login to namenode host and run this hadoop dfsadmin -safemode leave then 1) Bring up the core i,e HDFS, YARN and MapReduce 2) Bring up other services like Hive and so on
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@Ancil McBarnett Yes, we can use database on another node outside of the cluster. We need to make sure that network connection is stable and redundant. I am big fan of database consolidation as it makes it easy to maintain and backup.
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@Junichi Oda If you are using ambari then you will end up hitting an issue on removing "Remove the Hive Metastore password entry (javax.jdo.option.ConnectionPassword) from the Hive configuration" I am working on finding the option to make it work.
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@Junichi Oda I have never tried it but looks like its going to work 😉 ..Keep us posted on the final results and do accept the best answer to close the thread whenever you are ready
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