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Published Jun. 30, 2025

Cannot upload files larger than 1GB in size to Document Library when clamAV is enabled

Written By

Daniel Carrillo Broeder

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Issue

  • Big files (>1GB) cannot be uploaded to the Document Library in SaaS/PaaS environments with clamAV enabled.
  • Some errors related to clamAV could be thrown:
  • javax.portlet.PortletException: fi.solita.clamav.ClamAVSizeLimitException: Clamd size limit exceeded. Full reply from server: INSTREAM size limit exceeded. ERROR_ [Sanitized]
    at com.liferay.portal.kernel.portlet.bridges.mvc.BaseMVCActionCommand.processAction(BaseMVCActionCommand.java:69)
    at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:378)
    at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:88)
  • java.net.SocketException: Broken pipe (Write failed)\n\tat java.net.SocketOutputStream.socketWrite0(Native Method) ~[?:?]
    java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:110) ~[?:?]\n\tat java.net.SocketOutputStream.write(SocketOutputStream.java:150)
    fi.solita.clamav.ClamAVClient.scan(ClamAVClient.java:98) ~[?:?]
    com.liferay.antivirus.clamd.scanner.internal.ClamdAntivirusScanner.scan(ClamdAntivirusScanner.java:69)

Environment

  • Liferay SaaS / PaaS and clamAV antivirus enabled.

Resolution

  • PaaS
    • You could disable clamAV itnegration temporary.
    • As an alternative, clamAV limits could be raised by modifying clamd.conf but it impact the performance of your server, and should not be higher than 2GB. 
      • MaxScanSize 1000M
MaxFileSize 1000M
StreamMaxLength 1000M
  • SaaS
    • This limitation is currently a feature of the SaaS model and cannot be disabled by default, so each case will be evaluated and resolved individually.
    • Contact Liferay through a support ticket for assistance.

Additional Information

 

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