Please be aware that the above may cause data loss, and may not be something you want to do on any system. You'll have to look at the rest of the Master log, and potentially a RegionServer log, to understand why the log splitting failed. Turning on DEBUG logging may help shed some more light on the situation, but would likely not be required. It can't be said what went wrong with only the provided information. ... View more

@Jay Kumar SenSharma Thanks for the reply. I followed steps given in https://community.hortonworks.com/articles/79327/re-initializing-apache-accumulo-under-hdp.html and it worked. ... View more

You only need to use a Schema Registry if you plain on using Confluent's AvroConverter Note: NiFI can also be used to do CDC from MySQL https://community.hortonworks.com/articles/113941/change-data-capture-cdc-with-apache-nifi-version-1-1.html ... View more

@Jordan Moore Thanks for the help. ... View more

@Shobhna Dhami As Akhil explained you seems to have new hostname already in the hosts tables. You can try following workaround. 1. Modify "slnxhadoop04.dhcp.noid.in.sopra" hostname to "slnxhadoop04.dhcp.noid.in.sopra.tmp" (temporary hostnmae) in your host update file ( repeat this if you have old hostnames mapped with new hostnames ) 2. Now run "ambari-server update-host-names host_names_changes.json" 3. If 2nd step is successfull then go to step4 other wise identify problematic host and repeat step1 and step2. 4. Now create a new host update file mapping like below "slnxhadoop04.dhcp.noid.in.sopra.tmp" "slnxhadoop04.dhcp.noid.in.sopra" and run the "ambari-server update-host-names host_names_changes.json" command. This should resolve your issue. ... View more