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Code Fix: Using the Representational State Transfer service, K2 Host Server uses a large amount of memory


Issue Description

When using the Representational State Transfer Service Broker, if an exception happens while calling a Representational State Transfer Service, the K2 Host Server starts using a large amount of memory. This will result in the K2 Host Server becoming unresponsive or an error could occur.

Error Message

The following error could occur: “Out of Memory”.


  1. Ensure you have K2 Five (5.3) installed.
  2. Download the K2 Five (5.3) FP12 from K2 Partner and Customer Portal.
  3. Install the K2 Five (5.3) FP12 to apply the fix.


This will Automatically fix any Failed Rest service calls, that caused large memory usage, once the fix is applied and services restarted.