10.0

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Scale OCR

A typical deployment features only one OCR instance. You can add more instances and combine them into a single cluster without additional configuration of Control Tower.

The guide assumes that the user is already familiar with the WorkFusion installation procedure.

Primary server

The primary server is installed, as described in the installation guide for the OCR server. Concurrent executions are based on available CPU or can be configured.

Secondary server

The main idea is to add the OCR Worker component by installing the full OCR component pointing to the existing the INT server.

Prerequisites

  • The INT Server is installed.
  • The primary OCR Server is installed.

Install and configure

  • See Linux or Windows servers Installation according to the selected OCR platform.
  • Workers point to the same MSSQL instance.
  • Ensure that ocr.health.worker.name is unique. See OCR Health Check | Mandatory Configurations for details.

To install secondary OCR server:

  1. Copy the installer, certificates, and configuration file from the primary server to the designrated one.
  2. In the ocr_config.ini file, specify correct OCR Server hostnames and ocr.health.worker.name.
  3. On the designated secondary server, launch OCR Installer.

Validate

  • Check that the Worker process is started without errors (see ocr-worker.log).
  • Upload documents to the OCR Server: the ocr-task process must start and ocr-task.log is created on both primary and secondary servers.