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Chapter 3. Performing cross-site operations with the CLI
Use the Data Grid command line interface (CLI) to connect to Data Grid Server clusters, manage clusters, and push state transfer to backup locations.
3.1. Bringing backup locations offline and online
Take backup locations offline manually and bring them back online.
Prerequisites
- Create a CLI connection to Data Grid.
Procedure
Check if backup locations are online or offline with the
site statuscommand:site status --cache=<cache-name-here> --site=NYCNote--siteis an optional argument. If not set, the CLI returns all backup locations for that specific cache.TipReplace
--cache=<cache-name-here>with--all-cachesoption to get the backup location status for all caches.Manage backup locations as follows:
Bring backup locations online with the
bring-onlinecommand:site bring-online --cache=<cache-name-here> --site=NYCTake backup locations offline with the
take-offlinecommand:site take-offline --cache=<cache-name-here> --site=NYC
Replace --cache=<cache-name-here> with --all-caches option to bring a backup location online, or take a backup location offline, for all caches.
For more information and examples, run the help site command.
3.2. Configuring cross-site state transfer modes
You can configure cross-site state transfer operations to happen automatically when Data Grid detects that backup locations come online. Alternatively, you can use the default mode, which is to manually perform state transfer.
Prerequisites
- Create a CLI connection to Data Grid.
Procedure
Use the
sitecommand to configure state transfer modes, as in the following examples:Retrieve the current state transfer mode.
site state-transfer-mode get --cache=<cache-name-here> --site=NYCConfigure automatic state transfer operations for a cache and backup location.
site state-transfer-mode set --cache=<cache-name-here> --site=NYC --mode=AUTO
Run the help site command for more information and examples.
3.3. Pushing state to backup locations
Transfer the cache state to backup locations.
Prerequisites
- Create a CLI connection to Data Grid.
Procedure
Use the
site push-site-statecommand to push state transfer, as in the following example:site push-site-state --cache=<cache-name-here> --site=NYC
Replace --cache=<cache-name-here> with --all-caches option to push state transfer for all caches. Pushing the state has an high resource demand, so use this option with caution.
For more information and examples, run the help site command.
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