Knowledge BaseTroubleshootingHost memory usage is too high

Host memory usage is too high

TroubleshootingZCF · CloudVersions3.x-5.5.30Article IDKB-100286Updated2026-08-19

Issue/Introduction

This article describes how to troubleshoot excessive host memory usage. It applies to the initial diagnosis and resolution of similar issues in ZStack Cloud.

Environment

  • Product: ZCF
  • Component: Cloud
  • Version: 3.x-5.5.30

Possible causes

The buffer/cache value is too high because the cache has not been released.

Resolution

  1. Run sync

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Host memory usage is too high | KB-100286 | ZStack Resource Center