Hi @Adilm,    1) If you want to migrate all data, you can compress them and allocated in other nodes/servers. And not need 20TB of disk.      Althow if you need availble the data information, yo have 2 scenarios:           - Ten replication factor: then need 20TB per server.          - One replication factor: only need 20TB distributed in 10 servers.          - Best: replication factor 5 and 4TB per server.   2) Its depends, you need one namenode, one secondarynamenode, and for example 8 datanodes. You need to put attention of resources of your hosts.       Regards, Manu.       ... View more

Hi @IVenkatesh,   Can you paste any logs from some services?   All your services are stopped.   Regards, Manu. ... View more

Hi @MantuDeka,   Try to stop some unnecesary services that are running.     Regards, Manu. ... View more

Hi @Tulasi,   Try to kill running process on port used by Yarn Services and then Try to restart.   Regards, Manu. ... View more

I think so only under navigator.     Regards,  Manu. ... View more

Hi @RajeshBodolla,   There is no limit of nodes manages.   This is the comparation between versions: https://www.cloudera.com/content/dam/www/marketing/resources/datasheets/cloudera-enterprise-datasheet.pdf.landing.html   Regards, Manu. ... View more

Hi @VeljkoC,   Two options:   1) Changege number of port 2) Kill process pid (sometimes exist ghosts process)   Regards, Manu. ... View more

Yes @Nishikant     Regards,  Manu. ... View more

Hi @Nishikant,   Limit this, in spark configuration tap.     Regards, Manu. ... View more