> Source: [sk182370](https://support.checkpoint.com/results/sk/sk182370)

# sk182370 - Multi-Domain Management Server or Security Management Server do not respond because of a high number of CPD processes in a zombie state

| Property | Value |
|----------|-------|
| Solution ID | sk182370 |
| Date Created | 2024-06-05 |
| Last Modified | 2024-07-03 |
| Technical Level | Advanced |
| Products | Security Management Server |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |

## Symptoms

- * High number of CPD child processes in a zombie state on the Security Management Server.

  `[Expert@Hostname]# ps -ef | egrep 'CMD|cpd' `  
  ` UID PID PPID C STIME TTY TIME CMD`  
  `root 1175 29810 0 Jun03 ? 00:00:00 [cpd] <defunct>`  
  `root 1176 29810 0 Jun03 ? 00:00:00 [cpd] <defunct>`  
  `root 1178 29810 0 Jun03 ? 00:00:00 [cpd] <defunct>`
* Killing and restarting CPD processes solves the issue temporarily.

* In MDSs, basic operations such as mdsstart, mdsstat, mdsstop, mdsenv might get stuck.
* Login to Smart Console might fail.
* "api status" command might report the server is down.
* Core files of cpd might be generated
* The following command will return a positive number: "ps aux \| grep -i cpd \| grep -i defunct \| wc -l"

## Cause

The issue is caused by a race condition in CPD, where scheduled events might result in zombie processes.

## Solution

This solution requires authentication. Please log in to view the full solution.

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content