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gluster_georep
Sachidananda Urs edited this page May 18, 2018
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Create/Delete/Start/Stop GlusterFS Geo-Replication sessions
The gluster_georep module creates/deletes/starts/stops/reconfigures the Geo-Replication sessions. Module expects master and slave GlusterFS volumes to be already created, with these parameters it establishes a Geo-Replication sessions between them. Once the session is created, the sessions can be configured using the module. Existing Geo-Replication sessions can be maintained using this module.
- GlusterFS >= 4.0
| Parameter | Choices | Default value | Comments |
|---|---|---|---|
| state | present / absent / started / stopped / paused /resumed | NONE | Create, delete, start, stop, pause, resume a geo-replication session |
| mastervol | Mandatory variable. Master volume name for creating geo-replication session. | ||
| slavevol | Mandatory variable. Slave volume name for creating geo-replication session. | ||
| force | yes / no | no | Applicable only with states started, stopped, and while creating a Geo-Replication session. If force is set to yes, the volume will be started/stopped/created despite the client verification failure |
| georepuser | root | The Geo-Replication user to be used while performing any of Geo-Replication's administrative tasks. If no user is specified "root" is used. | |
| gluster_log_file | The path to the Geo-Replication glusterfs log file. | ||
| gluster_log_level | INFO / DEBUG / WARNING / ERROR / CRITICAL / NONE / TRACE | INFO | The log level for glusterfs processes. |
| log_file | The path to the geo-replication log file. | ||
| log_level | INFO / DEBUG / WARNING / ERROR / CRITICAL / NONE / TRACE | INFO | The log level for geo-replication. |
| changelog_log_level | INFO / DEBUG / WARNING / ERROR / CRITICAL / NONE / TRACE | INFO | The log level for the changelog. |
| ssh_command | The SSH command to connect to the remote machine. | ||
| rsync_command | The rsync command to use for synchronizing the files. | ||
| use_tarssh | yes / no | no | The use-tarssh command allows tar over Secure Shell protocol. Use this option to handle workloads of files that have not undergone edits. |
| volume_id | The command to delete the existing master UID for the intermediate/slave node. | ||
| timeout | The timeout period in seconds. | ||
| sync_jobs | The number of sync-jobs represents the maximum number of syncer threads (rsync processes or tar over ssh processes for syncing) inside each worker. | ||
| ignore_deletes | If this option is set to 1, a file deleted on the master will not trigger a delete operation on the slave. As a result, the slave will remain as a superset of the master and can be used to recover the master in the event of a crash and/or accidental delete. | ||
| checkpoint | Sets a checkpoint with the given option LABEL. If the option is set as `now', then the current time will be used as the label. | ||
| sync_acls | true / false | true | Syncs acls to the Slave cluster. By default, this option is enabled. Geo-replication can sync acls only with rsync as the sync engine and not with tarssh as the sync engine. |
| sync_xattrs | true / false | true | Syncs extended attributes to the Slave cluster. By default, this option is enabled. |
| log_rsync_performance | true / false | true | If this option is set to enable, geo-replication starts recording the rsync performance in log files. By default, this option is disabled. |
| rsync_options | Additional options to rsync. For example, you can limit the rsync bandwidth usage "--bwlimit=". | ||
| use_meta_volume | true / false | false | Set this option to enable, to use meta volume in Geo-replicaiton. By default, this option is disabled. |
| meta_volume_mnt | The path of the meta volume mount point. |