HDFS

Perform the following post migration steps.

Configure the ports, check the HA NameNode, custom topology, and review other configurations to ensure that HDFS service is set up.

Ports
Ensure that you review service configuration warnings and address inconsistencies.
TLS/SSL
If the TLS/SSL is not enabled in the CDP Private Cloud Base cluster, then you must reset the dfs.data.transfer.protection configuration.
HDFS HA
You must check HDFS HA and set Failover controller.
Custom Topology
Custom topology configuration in Cloudera Manager.
Add Balancer Role to HDFS
Use HDFS Balancer for balancing the data. This section is not applicable if you are upgrading to CDP Private Cloud Base 7.1.7.
Other review configurations for HDFS
Configuring HDFS properties to optimize log collection
CDP uses “out_webhdfs” Fluentd output plugin to write records into HDFS, in the form of log files, which are then used by different Data Services to generate diagnostic bundles. Over time, these log files can grow in size. To optimize the size of logs that are captured and stored on HDFS, you must update certain HDFS configurations in the hdfs-site.xml file using Cloudera Manager.

Parent topic: Post transition steps