Configuring the disk health checker

Ways to enable, disable, and use the disk health checker>

You can manage the disk health checker in DataStax Enterprise in the following ways:

  • Enable and disable the disk health checker.
  • Configure the frequency of disk health checking.
  • Manage the amount of disk space allowed on a partition for a data directory.

When the disk space exceeds the allowed amount, the node is shut down.

Configure the options in the dse.yaml file, which is located in:
  • Packaged installations: /etc/dse/dse.yaml
  • Tarball installations: install_location/resources/dse/conf/dse.yaml

health_check_interval option 

By default, the disk health checker is enabled by DataStax Enterprise 4.0. The health_check_interval option sets the time interval in minutes between each check. Any value greater than 0 enables the disk health checker. By default, the health_check_interval is 5.

To disable the disk health checker, set the health_check_interval option to 0.

min_disk_space_before_failure 

By default, the disk health checker allows 10 MB on a partition holding a data directory before shutting down the node.