RHEL/Ubuntu - USS/RSS count of edpa is showing a overall growth of ~800MB during Longevity runs

Products

• Data Loss Prevention
• Data Loss Prevention Endpoint Discover
• Data Loss Prevention Endpoint Suite
• Data Loss Prevention Endpoint Prevent

Issue/Introduction

Endpoint Agents on Ubuntu platform are showing growth in memory usage.

Environment

Suported Linux environments for DLP Endpoint

Resolution

For RHEL and Ubuntu platforms, we have observed an overall growth in USS/RSS memory parameters of edpa process was around 800MB for a longevity run with duration of a week.

This memory issue is not due to a memory leak or a memory growth in product code. Rather, it is due to glibc's memory management implementation, which behaves not unlike a JVM. A chunk of heap memory that has been freed by the application is not reclaimed by the OS. Rather, it goes back to one of the heaps of the process to potentially be reused for future malloc requests.

 

Additional Information

Refer https://sourceware.org/glibc/wiki/MallocInternals