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Nginx.exe has high CPU utilization in Deep Security 9.0 Service Pack (SP) 1 Patch 2

    • Updated:
    • 24 Nov 2016
    • Product/Version:
    • Deep Security 9.0
    • Platform:
    • Windows 2003 Enterprise
    • Windows 2003 Enterprise 64-bit
    • Windows 2003 Server R2
    • Windows 2003 Standard
    • Windows 2003 Standard 64-bit
    • Windows 2008 Datacenter 64-bit
    • Windows 2008 Enterprise
    • Windows 2008 Enterprise 64-bit
    • Windows 2008 Server R2
    • Windows 2008 Server R2 Datacenter
    • Windows 2008 Server R2 with Hyper-V(TM)
    • Windows 2008 Standard
    • Windows 2008 Standard 64-bit
    • Windows 2012 Enterprise
Nginx.exe is a cache/web/proxy server of Deep Security Relay (DSR) that is used for component updates. It is installed on the Deep Security Manager (DSM) by default, but you are experiencing a high CPU usage on DSM 9.0 build 6019 because of nginx.exe. As a result, you are unable to log in to the console.
Rebooting the server fixes the issue, but this is only a workaround.
To resolve the issue, upgrade nginx.exe:
  1. Disable the agent self-protection feature. To do this:
    1. Log in to the DSM console.
    2. Go to Computers and click the machine details, then click Settings > System Settings > Computer.
    3. Under Agent Self Protection, do either of the following:
      • Set a password for local override.
      • Untick the option Prevent local end-users from uninstalling, stopping, or otherwise modifying the Agent, or set it to No.
      If the Deep Security Agent (DSA) is not connected or is configured with agent-initiated communication, reset the DSA to the reset the agent configuration, including the agent self-protection feature. To do this, run the following on the command line:
      C:\Program Files\Trend Micro\Deep Security Agent> dsa_control /r
  2. Stop the Trend Micro Deep Security Relay service.
  3. Download the latest version of nginx.exe from nginx.
  4. Extract the file to a temporary folder.
  5. Back up then replace C:\Program Files\Trend Micro\Deep Security Relay\nginx.exe with the updated version.
  6. Start the Trend Micro Deep Security Relay service.
If the issue continues even with the higher build, enable debug on nginx.exe:
  1. Set error_log to debug mode:
    1. Go to C:\Program Files\Trend Micro\Deep Security Relay\relay.
    2. Open the nginx.conf file.
    3. Look for “error_log” and set the line to:
      error_log "C:/Program Files/Trend Micro/Deep Security Relay/relay/logs/error.log debug";
    4. Save the changes.
  2. Generate a diagnostic package for the DSR. Follow the procedure in getting a DSM diagnostic package in this KB article: Creating Deep Security 9.0 diagnostic package.
  3. Submit the files to Trend Micro Technical Support.
Configure; Troubleshoot; Upgrade
Solution Id:
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