W3 Total Cache issue

  • Resolved crajeshkumar

    (@crajeshkumar)


    5 years, 8 months ago

    Hi Guys,

    I am getting the below error on my WordPress logs frequently. I am not sure whether this issue is coming from W3TC. However we have checked & increased the memory limit to 2 GB. Still we are getting this issue frequently.

    PHP Fatal error: Out of memory (allocated 4194304) (tried to allocate 65536 bytes) in ../plugins/w3-total-cache/w3-total-cache-api.php on line 179 while reading response header from upstream

    PHP Fatal error: Unknown: Cannot use output buffering in output buffering display handlers in Unknown on line 0 while reading upstream

    Could anyone please tell briefly how to fix this? Thanks, in advance.

    Thanks,
    Rajesh

    • This topic was modified 5 years, 8 months ago by crajeshkumar.
Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @crajeshkumar,

    I am sorry you are having memory issues but I am happy to assist you with this.
    Can you please temporarily deactivate all other plugins (except W3 Total Cache) and see if the issue still persists. If the issue is gone, enable the plugins one by one to see which one might be causing this?

    Thread Starter crajeshkumar

    (@crajeshkumar)

    Hi Marko,

    Thanks for your prompt response. We don’t have much plugins installed in our website. However i would like to add some configuration details about our website which may give you a clear picture about our website architecture.

    It’s a WordPress multi-site architecture with Nginx. It is hosted in AWS with auto scaling feature, so running in multiple instances pointed through load balancer. We have CDN & network enabled W3TC.

    And we are getting this “Out of memory” issue continued with “Cannot use output buffering” issue in W3TC from our instance logs.

    PHP Fatal error: Out of memory (allocated 4194304) (tried to allocate 65536 bytes) in ../plugins/w3-total-cache/w3-total-cache-api.php on line 179 while reading response header from upstream

    PHP Fatal error: Unknown: Cannot use output buffering in output buffering display handlers in Unknown on line 0 while reading upstream

    Based on the above details, could you analyze more & provide some suggestions to solve the issue?

    Thanks
    Rajesh

    Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @crajeshkumar,

    When did this issue start to occur? Have you made any recent changes, updates, etc?

Viewing 3 replies - 1 through 3 (of 3 total)
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