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