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Added by Rob Misek, last edited by Tom Pfaeffle on Sep 09, 2008  (view change)

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backup-storage

Used in: distributed-scheme.

Description

The backup-storage element specifies the type and configuration of backup storage for a partitioned cache.

Elements

The following table describes the elements you can define within the backup-storage element.

Element Required/Optional Description
<type> Required Specifies the type of the storage used to hold the backup data.

Legal values are:

Default value is the value specified in the tangosol-coherence.xml descriptor.
<initial-size> Optional Only applicable with the off-heap and file-mapped types.
Specifies the initial buffer size in bytes.

The value of this element must be in the following format: 
[\d]+[[.][\d]]?[K|k|M|m|G|g]?[B|b]?

where the first non-digit (from left to right) indicates the factor with which the preceding decimal value should be multiplied:

  • K or k (kilo, 210)
  • M or m (mega, 220)
  • G or g (giga, 230)

If the value does not contain a factor, a factor of mega is assumed.

Legal values are positive integers between 1 and Integer.MAX_VALUE - 1023 (that is, 2,147,482,624 bytes).

Default value is the value specified in the tangosol-coherence.xml descriptor.
<maximum-size> Optional Only applicable with the off-heap and file-mapped types.
Specifies the initial buffer size in bytes.

The value of this element must be in the following format: 
[\d]+[[.][\d]]?[K|k|M|m|G|g]?[B|b]?

where the first non-digit (from left to right) indicates the factor with which the preceding decimal value should be multiplied:

  • K or k (kilo, 210)
  • M or m (mega, 220)
  • G or g (giga, 230)

If the value does not contain a factor, a factor of mega is assumed.

Legal values are positive integers between 1 and Integer.MAX_VALUE - 1023 (that is, 2,147,482,624 bytes).

Default value is the value specified in the tangosol-coherence.xml descriptor.
<directory> Optional Only applicable with the file-mapped type.

Specifies the pathname for the directory that the disk persistence manager ( com.tangosol.util.nio.MappedBufferManager) will use as "root" to store files in. If not specified or specifies a non-existent directory, a temporary file in the default location is used.

Default value is the value specified in the tangosol-coherence.xml descriptor.
<class-name> Optional Only applicable with the custom type.

Specifies a class name for the custom storage implementation. If the class implements com.tangosol.run.xml.XmlConfigurable interface then upon construction the setConfig method is called passing the entire backup-storage element.

Default value is the value specified in the tangosol-coherence.xml descriptor.
<scheme-name> Optional Only applicable with the scheme type.

Specifies a scheme name for the ConfigurableCacheFactory.

Default value is the value specified in the tangosol-coherence.xml descriptor.