Portal service goes down if I start Broker,Coordinator and Simulator service

Products

• CA Application Test
• CA Continuous Application Insight (PathFinder)

Issue/Introduction

I have upgraded CA-DevTest Version from 9.5 to 10.3 on one of production server. After upgrade my Portal service goes down if I start Broker,Coordinator and Simulator service. With out starting these services it works fine. production server is having Linux as OS

2019-05-15 18:23:48,260Z (14:23) [main] WARN org.springframework.cloud.netflix.zuul.web.ZuulHandlerMapping - No routes found from ProxyRouteLocator

2019-05-15 18:23:48,320Z (14:23) [main] INFO phoenix.ApplicationLoader - Started ApplicationLoader in 61.234 seconds (JVM running for 83.277)

2019-05-15 18:24:44,028Z (14:24) [qtp2101440631-21] INFO org.springframework.security.core.SpringSecurityCoreVersion - You are running with Spring Security Core 4.0.3.RELEASE

2019-05-15 18:24:59,797Z (14:24) [qtp2101440631-20] ERROR StackTrace - Full Stack Trace:

retrofit.RetrofitError: 404 Not Found

 at retrofit.RetrofitError.httpError(RetrofitError.java:39)

 at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:382)

 at retrofit.RestAdapter$RestHandler.invoke(RestAdapter.java:240)

 at com.sun.proxy.$Proxy124.getDeployedServicesForVSE(Unknown Source)

 at com.ca.sv.phoenix.invoke.InvokeVSEServiceService$getDeployedServicesForVSE.call(Unknown Source)

Cause

The upgrade was done from 9.5.1 which has minimum system requirement of 4GB RAM, so this problem never occurred. The memory was not enough to start all DevTest components, hence the registry was crashing. Verified this by checking the free space after starting all the components. Also CPU utilization showed spikes of high usage with servers started.

Environment

Release :

Component : CA Application Test

Resolution

Increase memory on the Server.  

System Requirement  RAM: 8GB

And for DevTest 10.3 alone the minimum RAM required is 8GB.