Creating a sync flow

Create a sync flow for a multi-site sync policy.

You can create two different types of flows for a sync policy group or for a specific bucket:
  • Directional sync flow
  • Symmetrical sync flow
The group flow create command creates a sync flow. For an existing sync policy group or bucket, this command overwrites the existing settings for the sync flow and applies the settings that you specify.
Option Description Required/Optional
--bucket

Name of the bucket to which sync policy needs to be configured. Used only in bucket-level sync policy.

Optional
--group-id

ID of the sync group.

Required
--flow-id

ID of the flow.

Required
--flow-type Types of flows for a sync policy group or for a specific bucket - directional or symmetrical.

Required
--source-zone

To specify the source zone from which sync should happen. Zone that send data to the sync group. Required if flow type of sync group is directional.

Optional
--dest-zone

To specify the destination zone to which sync should happen. Zone that receives data from the sync group. Required if flow type of sync group is directional.

Optional
--zones

Zones that part of the sync group. Zones mention will be both sender and receiver zone. Specify zones separated by ",". Required if flow type of sync group is symmetrical.

Optional

Prerequisites

  • A running IBM Storage Ceph cluster.

  • Root or sudo access.

  • The Ceph Object Gateway is installed.

Procedure

  1. Create or update a directional sync flow. To create or update directional sync flow for a specific bucket, use the --bucket option.

    Syntax 

    radosgw-admin sync group flow create --bucket=BUCKET_NAME --group-id=GROUP_ID --flow-id=FLOW_ID --flow-type=directional --source-zone=SOURCE_ZONE --dest-zone=DESTINATION_ZONE

  2. Create or update a symmetrical sync flow. To specify multiple zones for a symmetrical flow type, use a comma-separated list for the --zones option.

    Syntax 

    radosgw-admin sync group flow create --bucket=BUCKET_NAME --group-id=GROUP_ID --flow-id=FLOW_ID --flow-type=symmetrical --zones=ZONE_NAME_1,ZONE_NAME_2

zones are comma-separated lists of all zones that need to be added to the flow.