Running a deduplication estimate

Run the radosgw-admin dedup estimate command to start deduplication estimation. The command identifies duplicate objects but does not modify data.

Before you begin

Before you begin, make sure that you have the following prerequisites in place.
  • Administrative access to the Ceph cluster.
  • RGW service is running.
  • radosgw-admin tool is installed and available in your system path.

Procedure

  1. Open a terminal on a node that has access to the RGW service.
  2. Run the radosgw-admin dedup estimate command to start the estimate. Confirm that the system displays a message indicating the estimate has started.
     radosgw-admin dedup estimate
    Note: Starting a new estimate automatically aborts the current estimation process

Results

To check progress or view results, run the radosgw-admin dedup stats command.

Monitoring the estimate

Procedure

Run the following command to check progress or view results.
radosgw-admin dedup stats

Managing the estimate

Procedure

Use the following commands to manage the deduplication estimate:
  • Pause the estimate:
    radosgw-admin dedup pause
  • Resume a paused estimate:
    radosgw-admin dedup resume
  • Cancel the estimate and release resources:
    radosgw-admin dedup abort