DSEFS (DataStax Enterprise file system)
DSEFS is the default distributed file system on DSE Analytics nodes.
- About DSEFS
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DSEFS (DataStax Enterprise file system) is a distributed file system within DataStax Enterprise.
- Enabling DSEFS
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Steps to enable DSEFS on DataStax Enterprise nodes.
- Disabling DSEFS
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Steps to disable DSEFS and remove metadata and data.
- Configuring DSEFS
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Steps to configure DSEFS, configure data replication, and other functions, including setting the Kafka log retention.
- DSEFS command line tool
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Options and command arguments for the DSE File System (DSEFS).
- DSEFS compression
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DSEFS is able to compress files to save storage space and bandwidth.
- DSEFS authentication
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DSEFS works with secured DataStax Enterprise clusters.
- DSEFS authorization
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DSEFS authorization verifies user and group permissions on files and directories stored in DSEFS.
- Using the DSEFS REST interface
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DSEFS provides a REST interface that implements all the commands from WebHDFS.
- Copying data from CFS to DSEFS
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Use the
dse hadoop fs -cpcommand to copy data from CFS to DSEFS. - Programmatic access to DSEFS
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DSEFS can be accessed programmatically from an application by obtaining DSEFS’s implementation of Hadoop’s
FileSysteminterface. - Hadoop
FileSysteminterface implemented byDseFileSystem -
DseFileSystemhas partial support of the HadoopFileSysteminterface. - Using JMX to read DSEFS metrics
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DSEFS reports status and performance metrics through JMX in domain
com.datastax.bdp:type=dsefs.
