How To
Summary
Datacap Web Services client applications such as Datacap Navigator or Datacap Web Client (TMWeb) experiencing random disconnects or performance issues, particularly when executing validation rules. These problems become more pronounced with increased user load.
A single application pool worker process (w3wp.exe) or Datacap Windows Service (wTMservice.exe) running validation tasks, user logins, and other application requests under a high load can result in high CPU usage, memory leaks, unhandled exceptions, and resource exhaustion.
Objective
When running Datacap Web Services and or Datacap Navigator Scan or Verify operations, it is essential to configure a specific registry key to enable eRRO.
Enabling the eRRO registry for Datacap Web Services creates a separate process, eRRo.exe, dedicated to handle validation rules on Datacap Web Server (TMWeb) or Datacap wTM Server. The eRRO.exe process is instantiated upon clicking the Submit or Run Validations button within the verify UI. When validation is complete, the eRRO.exe process is released.
Steps
To enable the eRRO feature on the Datacap wTM or TMWeb server:
1. Open a command prompt and type regedit.exe to open Registry Editor
2. Navigate to the following registry key and create or set the existing "Use eRRO" value
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Datacap\RRS]
"Use eRRO"=dword:00000001

The following example image shows two separate Datacap Navigator verify sessions running validations and how each of them has it's own eRRO.exe process, as seen in Windows Task Manager.

Related Information
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSZRWV","label":"IBM Datacap"},"Component":"TMWeb;Datacap Navigator;DNav;Taskmaster web","Platform":[{"code":"PF033","label":"Windows"}],"Version":"9.x","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
22 February 2024
UID
ibm10792169