Help on Protocols > Hadoop (HDFS) > Settings

The following information and controls appear on Protocols > Hadoop (HDFS) > Settings

Current Access Zone
Specifies the access zone for which you want to display HDFS settings.
HDFS Service Settings
Enable HDFS service
Enables or disables the HDFS service.
Default Block Size
Specifies the HDFS block size, which determines how the HDFS service returns data from read requests from the Hadoop compute client.
Default Checksum Type
Specifies a checksum type. The HDFS service does not send any checksum data, regardless of the checksum type.
HDFS Protocol Settings
Enable WebHDFS Access
Enables or disables WebHDFS.
Authentication Type
Specifies the HDFS authentication method.
Both Simple and Kerberos authentication
Accepts both simple authentication and Kerberos credentials. If Kerberos settings and file changes are not completed, client connections default to simple authentication.
Simple authentication
Requires only a username to establish client connections.
Kerberos authentication
Requires Kerberos credentials to establish client connections.
Root Directory
Specifies the directory that you want to use for the HDFS root directory. The root directory must reside within /ifs file structure.
Data Transfer Cipher
Specifies whether wire transfer is enabled or if enabled, one of the three Advanced Encryption Standard (AES) ciphers.
Ambari Server Settings
Ambari Server
Specifies the name of the external Ambari server that receives communication from the Ambari agent.
Ambari NameNode
Specifies an IPv4 address as the point of contact for Hadoop services that are managed through the Ambari interface. IPv6 addresses are not supported.
ODP Version
Specifies the version of the Open Data Platform (ODP) stack repository, including a build number if one exists, that is installed by the Ambari server. This version information is required to support ODP upgrades on other systems that are part of the Hadoop cluster.
Ambari Metrics Collector
Requires the IP address of the NameNode for the managed Hadoop services.