How To Fix ICM521 - Memory Used of the HTTP Server Cache (in Percent)

ICM521 - Overview

• Message type: E = Error

• Message class: ICM - Messages for ICM Monitor

• Message number: 521

• Message text: Memory Used of the HTTP Server Cache (in Percent)

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ICM521 - Memory Used of the HTTP Server Cache (in Percent) ?

  The SAP error message ICM521 indicates that the memory used by the HTTP server cache has reached a certain threshold, which can lead to performance issues or even service interruptions if not addressed. This message is typically related to the Internet Communication Manager (ICM) in SAP systems, which handles HTTP requests.
  
  Cause:
  The ICM521 error is triggered when the memory usage of the HTTP server cache exceeds a predefined limit. This can happen due to several reasons:
  
  High Traffic: An increase in the number of HTTP requests can lead to higher memory consumption.
  Large Cache Size: If the cache size is set too large, it may consume more memory than available.
  Inefficient Cache Management: Poorly configured cache settings or inefficient caching strategies can lead to excessive memory usage.
  Memory Leaks: There may be underlying issues in the application or configuration that cause memory leaks.
  
  
  Solution:
  To resolve the ICM521 error, consider the following steps:
  
  
  Monitor Memory Usage: Use transaction