Qlik Replicate: UI not available on linux deployment with ERR_CONNECTION_CLOSED error

[KellyHobson]

A Qlik Replicate environment on redhat linux 7 sees the following error in the browser:

This site can’t be reached ec2-xxx.xxx.xxxxx unexpectedly closed the connection.
Try:
Checking the connection
Checking the proxy and the firewall
ERR_CONNECTION_CLOSED

The repsrv.log reads:

[REST_SERVER ]W: Number of connections exceed the maximum number of concurrent http handlers, connection request handling is paused (number of busy handlers = 1000, maximum handlers = 1000)

Resolution

Follow the below carefully to increase the number of connections you can have: 

1. Stop Qlik Replicate service
   
   /opt/attunity/replicate/bin/areplicate stop
   
   
2. Navigate to your Qlik Replicate bin directory
   
   
3. Open and Edit repctl.cfg
   
   
4. Add a comma to the end of the last parameter
   
   "enable_passthrough_filter": false,
   
   
5. On the next line add "max_concurrent_handlers": 1500
   
   "enable_passthrough_filter": false,
   "max_concurrent_handlers": 1500
   
   
6. Save the file
   
7. Restart the Qlik Replicate service
   
   /opt/attunity/replicate/bin/areplicate start

Environment

Qlik Replicate

The information in this article is provided as-is and to be used at own discretion. Depending on tool(s) used, customization(s), and/or other factors ongoing support on the solution below may not be provided by Qlik Support.