The iServer distributed analyst service is based on Spark computing platform, which provides the ability of GIS distributed analysis processing. Geographic data with access to distributed storage, such as HDFS (Hadoop Distributed File System) stored data, iServer DataStore Relational data stored in, and point, line, and surface data stored in UDB. Provide powerful spatial analysis capabilities, such as big data mapping, analysis and management, and distributed dynamic mapping. All features are provided REST API for easy development and extension.
Preparation for distributed analyst service:
- Prepare the distributed analyst service environment
- Prepare the data
When the environment for the distributed analyst service is ready, you can perform distributed analysis in two ways:
- Using iServer REST API
- Using iDesktop Java
The result file of the distributed analyst service has two output formats:
- If the current iServer already has an iServer DataStore that is available and has registered a relational data source, the result data source will be stored first in the relational database of iServer DataStore. The result dataset will also be listed under the %datacatalog_uri%/relationship/datasets resource, and its name is analystResult_*; The result workspace will be stored in a folder named task ID in the %iServer_Home%/webapps\iserver\processingResultData\Analyst directory under the iServer product package home directory.
- If the current iServer does not have an associated iServer DataStore, both the result data source and the result workspace are stored in the % iServer _ Home%/webapps \ iserver \ processingResultData \ Analyst in the iServer package home directory In the folder named by the task ID in the directory.