14.2. Modifying BitRot Detection Behavior
Once the daemon is enabled, you can pause and resume the detection process, check its status, and modify how often or how quickly it runs.
gluster volume bitrot VOLNAME scrub ondemand- Starts the scrubbing process and the scrubber will start crawling the file system immediately. Ensure to keep the scrubber in 'Active (Idle)' state, where the scrubber is waiting for it's next frequency cycle to start scrubbing, for on demand scrubbing to be successful. On demand scrubbing does not work when the scrubber is in 'Paused' state or already running.
gluster volume bitrot VOLNAME scrub pause- Pauses the scrubbing process on the specified volume. Note that this does not stop the BitRot daemon; it stops the process that cycles through the volume checking files.
gluster volume bitrot VOLNAME scrub resume- Resumes the scrubbing process on the specified volume. Note that this does not start the BitRot daemon; it restarts the process that cycles through the volume checking files.
gluster volume bitrot VOLNAME scrub status- This command prints a summary of scrub status on the specified volume, including various configuration details and the location of the bitrot and scrubber error logs for this volume. It also prints details each node scanned for errors, along with identifiers for any corrupted objects located.
gluster volume bitrot VOLNAME scrub-throttle rate- Because the BitRot daemon scrubs the entire file system, scrubbing can have a severe performance impact. This command changes the rate at which files and objects are verified. Valid rates are
lazy,normal, andaggressive. By default, the scrubber process is started inlazymode. gluster volume bitrot VOLNAME scrub-frequency frequency- This command changes how often the scrub operation runs when the BitRot daemon is enabled. Valid options are
daily,weekly,biweekly, andmonthly.By default, the scrubber process is set to runbiweekly.
