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Asura2003's avatar
Asura2003
Icon for Altostratus rankAltostratus
Jul 15, 2025

F5 ASM XML processing - policy name.

Hello, we have an error message in logs: ASM out of memory error: event code X89 Exceeded maximum memory assigned for XML processing we have already increased both variables   total_xml_memory and...
asm
waf
xml
XML MEMORY
Asura2003's avatar
Asura2003
Icon for Altostratus rankAltostratus
Jul 16, 2025

Hello,

thans for your answer but its not exactly what i asked for. I know that i can increase available ram for XML processing with both of these variable and related articles. 

 

I asked if there is a way to check which WAF policy or even which requests trigger this log message (error)? 

Maybe its possible to check which policy is consuming the most of the XML processing memory?

  • VGF5's avatar
    VGF5
    Icon for Cumulonimbus rankCumulonimbus
    Jul 16, 2025

    ASM does not provide a built-in way to directly identify which specific WAF policy or request is consuming the most XML processing memory, nor does it log which policy triggered the XML/JSON memory exhaustion error. However, you can search the logs for large requests that failed XML parsing:

    zgrep -i 'XML parser' /var/log/asm* | awk '{print $7,$9}' | sort -nr | head