org.apache.ignite

Interface IgniteSnapshot

public interface IgniteSnapshot

This interface provides functionality for creating cluster-wide cache data snapshots.

Current limitations:

• Snapshot will trigger PME (partition map exchange) to run itself.
• Snapshot will be taken from all registered persistence caches to grantee data consistency between them.
• Snapshot must be resorted manually on the switched off cluster by copying data to the working directory on each cluster node.

Method Summary

Modifier and Type	Method and Description
IgniteFuture<Void>	cancelSnapshot(String name) Cancel running snapshot operation.
IgniteFuture<Void>	createSnapshot(String name) Create a consistent copy of all persistence cache groups from the whole cluster.

Method Detail

createSnapshot

IgniteFuture<Void> createSnapshot(String name)

Create a consistent copy of all persistence cache groups from the whole cluster.

Parameters:

name - Snapshot unique name which satisfies the following name pattern [a-zA-Z0-9_].

Returns:

Future which will be completed when a process ends.

cancelSnapshot

IgniteFuture<Void> cancelSnapshot(String name)

Cancel running snapshot operation. All intermediate results of cancelled snapshot operation will be deleted. If snapshot already created this command will have no effect.

Parameters:

name - Snapshot name to cancel.

Returns:

Future which will be completed when cancel operation finished.