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DSE 6.7 Developer Guide (EOSL)

Getting started
Information about developing applications for DataStax Enterprise.
Release notes
Release notes for DataStax Enterprise.
Installing
DataStax Enterprise 6.7 can be installed in a number of ways, depending on the purpose of the installation, the type of operating system, and the available permissions.
Configuration
Information about configuring DataStax Enterprise, such as recommended production setting, configuration files, snitch configuration, start-up parameters, heap dump settings, using virtual nodes, and more.
DSE advanced functionality
Information on using DSE Analytics, DSE Search, DSE Graph, DSEFS (DataStax Enterprise file system), and DSE Advanced Replication.
Developing applications with DataStax drivers
The DataStax drivers are the primary resource for application developers creating solutions using DataStax Enterprise (DSE).
Tools
Tools include nodetool, dse, and dsefs shell commands, dsetool, fs-stress tool, pre-flight check, and yaml_diff tools, and the sstableloader.
- DSE Metrics Collector
  DSE Metrics Collector aggregates DSE metrics and integrates with centralized monitoring solutions to facilitate problem resolution and remediation.
- nodetool
  Available commands for monitoring a cluster and performing routine database operations.
- dse commands
  The dse commands for starting the database and connecting an external client to a DataStax Enterprise node and performing common utility tasks.
- dsefs shell commands
  The DSEFS functionality supports operations including uploading, downloading, moving, and deleting files, creating directories, and verifying the DSEFS status.
  - Get information
    Use these dsefs commands to get information about your files and directories.
  - Navigate DSEFS
    Use these dsefs commands to navigate the DSE File System.
  - Manage files
    Use these dsefs commands to manage the files in the DSE File System.
    - append
      Appends a local file to a remote file.
    - cat
      Concatenates files and prints on the standard output.
    - cp
      Copies files and directories within a file system or between two file systems.
    - fsck
      Performs file system consistency check and repairs file system errors.
    - get
      Copies a DSEFS remote file to the local file system.
    - mkdir
      Creates new directory or directories.
    - mv
      Moves a file or directory.
    - put
      Copies a local file to the DSE filesystem.
    - rename
      Renames a file or directory without moving it to a different directory.
    - rm
      Removes files or directories.
    - rmdir
      Removes empty directory or directories.
    - truncate
      Truncates file or files to a specified length.
    - umount
      Unmounts file system storage locations from file hierarchy.
  - Manage permissions
    Use these dsefs commands to manage permissions.
- dsetool
  A list of the available commands for DSE operations.
- Stress tools
  Tools for stress testing DataStax Enterprise.
- SSTable tools
  Available diagnostic tools for analyzing, using, upgrading, and changing DataStax Enterprise SSTables.
- Preflight check tool
  The preflight check tool is a collection of tests that detects and optionally fixes configuration settings on DataStax Enterprise nodes.
- Compare yaml files
  cluster_check and yaml_diff compare the differences between cassandra.yaml or dse.yaml files.
Operations
DataStax Enterprise operation topics, such as node and datacenter operations, changing replication strategies, configuring compaction and compression, caching, and tuning Bloom filters.
CQL
CQL (Cassandra Query Language) is a query language for the DataStax Enterprise database.

Manage files with dsefs commands

Use these dsefs commands to manage the files in the DSE File System.

Use these dsefs commands to manage the files in the DSE File System.

append
Appends a local file to a remote file.
cat
Concatenates files and prints on the standard output.
cp
Copies files and directories within a file system or between two file systems.
fsck
Performs file system consistency check and repairs file system errors.
get
Copies a DSEFS remote file to the local file system.
mkdir
Creates new directory or directories.
mv
Moves a file or directory.
put
Copies a local file to the DSE filesystem.
rename
Renames a file or directory without moving it to a different directory.
rm
Removes files or directories.
rmdir
Removes empty directory or directories.
truncate
Truncates file or files to a specified length.
umount
Unmounts file system storage locations from file hierarchy.

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