Seeing 100% CPU Utilization on Windows Server and more than 90% used by VSE server

Products

• Service Virtualization

Issue/Introduction

Frequently reaching 100% CPU Utilization on windows servers and more than 90% used by VSE. TheVSE log shows the below error multiple times:

[PortServer:0.0.0.0/0.0.0.0:1111] ERROR com.itko.lisa.vse.http.Endpoint - The requested URL / is invalid and not found on this server

 

Environment

Service Virtualization 10.8.4

Cause

The issue is happening when the scanning happening on HTTP and HTTPS ports. If VS's are running on HTTP and scanning happens on HTTPS on same port, reported errors are seen and vice versa.

Resolution

Recommended to add the VS ports to Scanner-->Exclusion list which are causing the issue. If this can't be done, please follow the below steps to resolve the issue.

. Apply the patch patch_DE645685_10.8.4_GA.jar in DevTest_Home/lib/patches folder. The patch improves the VSE performance.

. Add the below properties to the VSE local.properties.

lisa.vse.blacklist.hosts==0.0.0.0,10.xx.xxx.xx,10.yy.yy.yy,...
lisa.webserver.dos.filter.enabled=true
lisa.webserver.dos.filter.max.requests.per.sec=10
lisa.webserver.dos.filter.delay.ms=-1

lisa.webserver.whitelist.hostsandpaths=0-255.0-255.0-255.0-255|/api/*,/lisa-virtualize-invoke/*,/acl/*,/api/*,/lisa-invoke/*,/lisa-pathfinder-invoke/*,/lisa-test-invoke/*,/devtest/*,/