Advanced Threat Defense exhibits high memory usage and might be unstable

Technical Articles ID: KB91100
Last Modified: 2022-06-21 11:40:55 Etc/GMT

Environment

Advanced Threat Defense (ATD) 4.6, 4.4

Problem

When you view the dashboard in the graphical web console, you see ATD recording high memory usage. Or, you see SNMP monitoring, SNMP traps, and syslog messages that report a high usage of memory.

You might then experience that ATD crashes or stops responding because it runs out of resources.

System Change

You enabled the SNMP feature.

Cause

A memory leak is found in an SNMP subagent on ATD.

NOTE: ATD 4.4.x and 4.6.0 are affected by this issue. Earlier versions of ATD are not affected.

Solution

This issue is resolved in ATD 4.6.2, which is available from the Product Downloads site.

NOTE: You need a valid Grant Number for access. KB56057 - How to download product updates and documentation provides additional information about the Product Downloads site, and alternate locations for some products.

Workaround

Disable SNMP and then enable it from the graphical web console. It restarts the affected process and frees the memory.

Log on to the ATD with administrator credentials.
Click Manage, ATD Configuration, SNMP.
Deselect the Allow SNMP Monitoring option and Send SNMP Traps option.
Click Submit.
Check the Allow SNMP Monitoring and Send SNMP Traps options as needed.
Click Submit.

IMPORTANT: You need to perform the process multiple times at intervals until the fix is made available and applied to your ATD. The interval between toggling varies from installation to installation. We recommend that you perform it at least once per month. If you notice high memory usage after a short interval, toggle SNMP more frequently.

Affected Products

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Knowledge Center

Advanced Threat Defense exhibits high memory usage and might be unstable

Environment

Problem

System Change

Cause

Solution

Workaround

Affected Products

Languages:

Title

Title

Knowledge Center

Advanced Threat Defense exhibits high memory usage and might be unstable

Environment

Problem

System Change

Cause

Solution

Workaround

Affected Products

Languages:

Choose your region

Title

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