Restoring The Database

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Restoring The Database

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A checkpoint is a tarball that contains the SQLstream metadata and local table data as of a specific moment in time. The checkpoint can be created either by a user-initiated checkpoint or a 'graceful shutdown' of the SQLstream engine. A user-initiated checkpoint can be named or not; an automatic checkpoint resulting from a graceful shutdown does not have a name. For more detail, see the topic Starting and Stopping SQLstream s-Server in the s-Server Getting Started Guide.

Upon restart after a graceful shutdown, SQLstream automatically restores the most recent checkpoint backup.

To use a previous named checkpoint, the following command can be used:

$ checkpoint --restorenamed foobar

See also Backups and Code Control.

For more detail, see the topic Starting and Stopping SQLstream s-Server in the s-Server Getting Started Guide.