MarkLogic 12 EA 1 Product Documentationadmin.databaseSetLargeSizeThreshold
admin.databaseSetLargeSizeThreshold( config as element(configuration), database-id as (Number|String), value as Number ) as element(configuration)
Summary
This function sets the threshold at which binary documents in the specified database should be handled as binary large objects (BLOBs). Binary documents less than or equal to the threshold are treated as small binary objects, stored in stands. Binary documents larger than the threshold are stored in the Large Data Directory for more efficient memory consumption.
Required Privileges
This operation requires at least one of the following privileges:http://marklogic.com/xdmp/privileges/admin/database
http://marklogic.com/xdmp/privileges/admin/database/{id}
http://marklogic.com/xdmp/privileges/admin/database/index
http://marklogic.com/xdmp/privileges/admin/database/index/{id}
Usage Notes
Binary documents with size less than or equal to the configured threshold are treated as small binary objects and stored in stands. The entire contents of a small binary document is cached in memory. Binary documents larger than the threshold are stored in the Large Data Directory for more efficient memory usage. For details about small vs. large binaries, see "Binary Format" in the Application Developer's Guide.The threshold value is in kilobytes and must be in the range:
- 32 KB <= threshold <= 512 MB on 64-bit systems
- 32 KB <= threshold <= 128 MB on 32-bit systems
The location of the Large Data Directory may be configured during
forest creation by setting the "large data directory" property
on the Forest configuration page of the Admin Interface, or by
passing a large-data-directory parameter to
admin:forest-create.
Example
const admin = require('/MarkLogic/admin.xqy');
const config = admin.getConfiguration()
admin.databaseSetLargeSizeThreshold(config, xdmp.database("myDatabase"),
2048)
//returns the new configuration element -- use admin.saveConfiguration
//to save the changes to the configuration or pass the configuration
//to other Admin API functions to make other changes.