hadoop functions
The table below lists all the
hadoop built-in
functions (in this namespace:
http://marklogic.com/hadoop).
This module provides helper functions for creating advanced mode input and split queries for the MarkLogic Connector for Hadoop. For details, see the MarkLogic Connector for Hadoop Developer's Guide.
The Hadoop function module is installed as the following file:
install_dir/Modules/MarkLogic/hadoop.xqy
where install_dir is the directory in which
MarkLogic Server is installed.
To use the hadoop.xqy module in your own XQuery modules,
include the following line in your XQuery prolog:
import module namespace hadoop="http://marklogic.com/xdmp/hadoop" at "/MarkLogic/hadoop.xqy";
1 function
| Function name | Description |
|---|---|
| hadoop:get-splits | This function returns (forest_id, record_count, host_name) tuples usable with the MarkLogic Connector for Hadoop to generate input splits in advanced input mode. |