Snapshot Management
The users of GridGain Ultimate edition can manage snapshots via the Snapshots screen.
The screen lets you create, restore, copy, move, delete, and perform integrity check of snapshots. In addition to the snapshots created in Nebula, the list of snapshots contains the snapshots that were created by using programming APIs or the snapshot management tool. See Snapshots and Recovery or our video guide:
The Snapshots screen displays the following information about each snapshot:
| Column | Description |
|---|---|
Start Time |
Time when the snapshot create operation began |
Type |
Full or incremental |
ID |
The snapshot ID |
Mode |
The method that was used to create the snapshot, automatically on a schedule or manually |
Status |
The status of the snapshot operation that is being executed on the snapshot. The column shows the progress of the operation while the operation is in progress, and changes to OK when the operation is complete. |
Caches |
The number of caches included in the snapshot. Click the number to view the names of the caches. |
Creating Snapshots
To create a snapshot:
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Click Create snapshot.
The Create snapshot dialog opens.
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Select the snapshot type: Full (default) or Incremental.
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Optionally, to change the default snapshot compression (ZIP, level 1), select the compression type and, if prompted, the compression level.
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Optionally, to limit the snapshot writing speed to a specific number of Bytes per second, enter the required number of Bytes in the Write throttling field.
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Optionally, to change the default snapshot scope (all caches and cache groups):
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Select one of the alternative options:
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Include specific to include only explicitly specified caches and groups
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Exclude specific to include all caches and groups except for explicitly specified ones
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From the Caches and Cache groups drop-down lists, select the caches and groups to be included or excluded (depending on the option you have selected in (a) above).
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-
Click Create.
A snapshot is created in each node’s snapshot folder. Each node saves its part of the data. The snapshot folder is specified in the node configuration.
Restoring Snapshots
To restore a snapshot, click on the ⋮ icon in the table row that corresponds to the snapshot that you want to restore and, from the drop-down menu, select Restore from snapshot.
Copying/Moving Snapshots
To move or copy a snapshot to a specific path, click the ⋮ icon and select Move or Copy.
Then, in the dialog box that appears, enter the destination path and click OK.
The destination path must be available on each node.
Verifying Snapshot Integrity
To verify that the snapshot data is not broken, run an integrity check.
To run the check, click the ⋮ icon and select Check.
The status column is updated with the results of the check.
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