The response time of LAC is getting worse day by day

Products

• CA Live API Creator

Issue/Introduction

The response time of LAC is getting worse day by day

 

(Environment)

- Weblogic version : 12.2.1.3.0

- LAC version : 5.3

- JDK version : 1.8.212

 

(Test cases)

The API created on LAC is Javascript resource. It has no backend database.

 

1. LAC 5.3 on Weblogic (no Weblogic patches)

Regardless of starting with LAC_USE_IN_MEMORY_LOGGING=False, the average response time was doubled in two days.

 

2. REST API servlet on Weblogic (no Weblogic patches)

This is a reference case for isolating the effect of Weblogic patches from LAC response time deterioration.

 

3. LAC 5.3 on Weblogic (with Weblogic patches)

The average response time is getting worse day by day.

 

4. REST API servlet on Weblogic (with Weblogic patches)

No response time deterioration was observed.

 

(Question)

What are the reasons that the response time of LAC is getting worse day by day?

Environment

Release : 5.3

Component : LIVE API CREATOR

Cause

LAC runs out of memory in a few weeks by the Timer Scheduler.

Resolution

The following two parameters prevent the response time getting worse.
-DLAC_USE_IN_MEMORY_LOGGING=false -DLAC_SCHEDULING_DISABLE=true (as JAVA_OPTS)

Additional Information

This resolution is effective on the Apache Tomcat as well.