Why do we synch users into Apache ranger? It would be great if someone can explain the reason along with one example. ... View more

While installing ambari, we set up a DB for it. Can we use the same DB for ranger? Also why do we need to run ambari-server setup --jdbc-db={database-type} --jdbc-driver={/jdbc/driver/path} command while installing ranger? Will running the above command override the DB used by ambari already? ... View more

Thanks for this document. But i have one doubt here, as while reading the file from HDFS, client passes the EEDK to KMS for getting DEK and then gets the blocks of that file from data node and decrypt them using DEK. So it can be possible that in between somebody sniffs and gets the DEK, which is coming from KMS. And then also sniffs the data blocks coming from data node. Then both can be used to decrypt data. So how is this taken care of? What type of communication is b/w KMS and the client, so that no one in between can get the DEK? ... View more

In this if we copy the Hfiles manually from one Hbase cluster to another, in that case list command dispalys all the tables, But scanning a table does not shown any data. This is because i have not copied META table enteries. So is there a way to copy META table enteries to another hbase instance in a way that both the already exisiting table and new tables exist with their data. , If we manually copy Hfiles from Hbase instance to another. In that case, list will display the tables but scan will not show the data because we have not copied META table. So is there a way to copy the enteries of MEta table also, in a way that new tables and already exisiting tables both are retained. ... View more

In this if we copy the Hfiles manually from one Hbase cluster to another, in that case list command dispalys all the tables, But scanning a table does not shown any data. This is because i have not copied META table enteries. So is there a way to copy META table enteries to another hbase instance in a way that both the already exisiting table and new tables exist with their data. , If we manually copy Hfiles from Hbase instance to another. In that case, list will display the tables but scan will not show the data because we have not copied META table. So is there a way to copy the enteries of MEta table also, in a way that new tables and already exisiting tables both are retained. ... View more