Enabling Object Storage

This section describes how to use the compression algorithm in object storage scenarios.

For details about how to enable the compression algorithm in object storage scenarios, see Enabling RGW Data Compression in the Ceph Object Storage Deployment Guide (CentOS 7.6 & openEuler 20.03). The following provides the commands for setting the placement compression policy.

• Adding a placement policy for the compression algorithm:

  1	radosgw-admin zone placement add --rgw-zone=default --placement-id=compress-placement --index_pool=default.rgw.buckets.index-compress --data_pool=default.rgw.buckets.data-compress --data_extra_pool=default.rgw.buckets.non-ec-compress --compression=glz

• Modifying the compression algorithm level:
  

  The compression algorithm supports two levels: 0 and 1. Level 0 indicates the high-performance mode, whereas level 1 indicates the high-compression mode.

  1. Edit the ceph.conf file.

     1	vi /etc/ceph/ceph.conf

  2. Change the value of compressor_glz_level.
     

     By default, compressor_glz_level is set to 0 on Ceph. If the high-performance mode is used, retain the default settings. If the high-compression mode is used, change the value to 1 as follows:

     1	compressor_glz_level = 1

     

  3. Restart the OSD node for the modification to take effect.

     1	systemctl restart ceph-osd.target