# High CPU utilization on the new Active cluster member after a failover

## Product
Security Gateways

## Version
R81.20

## OS
Gaia

## Last Modified
2025-03-20

## Symptoms

- After a failover, the output of the "`top`" command on the new Active cluster member shows that the CPU utilization reaches high levels on the CPU cores that run CoreXL SND instances (to see the CoreXL instances, run the "`fw ctl multik stat`" command).

- The performance tool "`perf top -C [cpu_id]`" shows these functions:

```
internal_dfa_exec.cold.0
internal_dfa_exe
```

## Solution

This problem was fixed. The fix is included in:

- [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 99

If you choose not to upgrade, Check Point can supply a **Hotfix**. [Contact Check Point Support](https://www.checkpoint.com/support-services/.contact-support/) to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.

For faster resolution and verification, please collect [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

**Hotfix installation instructions:**

Refer to [sk168597 - How to install a Hotfix](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597).

#### NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

## Article Properties

- **Access Level:** General  
- **Status:** Approved by TAC  
- **Date Created:** 2024-02-20  
- **Last Modified:** 2025-03-20