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roger_jr's avatar
roger_jr
Copper Contributor
Mar 21, 2022

Linux Defender Update using allot of memory up to exhaustion ?

Has anyone notice that latest Linux Defender update been using allot of memory and causing high cpu.

 

Thanks Roger.

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  • aldema1000's avatar
    aldema1000
    Copper Contributor
    Mar 22, 2022

    We're facing the same issue. Mainly memory issues. Servers are allocating more and more RAM and will not free it, causing oom to kill business app processes. Case has been already opened in the past because we saw RAM allocation was slightly increasing over time (for example within 3 month from 800MB to 3GB) and did not free RAM - however after installing the last upgrade it increased much faster (within days). On one server (ldap) we faced an increasment of factor 10 from 1600MB to 16GB within a few days. 
    CPU issues mainly caused by audisp_plugin process seemed to be resolved by adding auditd exclusions for specific processes that have been identified as top initiators via XMDEClientAnalyzer log collector.

    • roger_jr's avatar
      roger_jr
      Copper Contributor
      Mar 22, 2022

      aldema1000 

       

      Thanks for sharing. We opened a ticket with support, but we needed to restart all our Linux Agents.

       

      I did find this link on Reddit and someone from Azure Support stated they open a defect. But I'm waiting for confirmation from Support. https://www.reddit.com/r/DefenderATP/comments/thb0pq/memory_consumption_in_mdatp_service_for_linux/

       

      • aldema1000's avatar
        aldema1000
        Copper Contributor
        Mar 22, 2022

        roger_jr 

        We've also restarted the defender services but the issue came back immediately (increased and 3 days later oom killed again processes). Is it stable now at your side?

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