ASM JMeter script is failing with a “Connection Reset” java socket exception.

Article Id: 143388

Status: Published

Updated On: 20-01-2020 18:33

Products:

CA App Synthetic Monitor , NIMSOFT CLOUD USER EXPERIENCE MONITOR , DX Application Performance Management

Issue/Introduction:

We are experiencing a problem where our ASM JMeter script fails with a “Connection Reset” java socket exception. This started after making changes. Due to security issues, we added a WAF in front of the online.foo.com site. We are using a service from F5 called Silverline. We have whitelisted every ASM station with Silverline and we expect the scripts to still execute normally, but they are not.

Cause:

Per Engineering, the WAF is doing its job - blocking requests from automated agents like JMeter, to prevent a distributed denial-of-service (DDoS) attack.

Environment:

Release : 10.1

Component : CA APP SYNTHETIC MONITOR (WATCHMOUSE)

Resolution:

The solution is to use Webdriver monitor instead of Script, because it's indistinguishable from the regular browser.