Influx of “ao_speedup_cachebuster” requests caused site to crash

  • Resolved mmosehauer

    (@mmosehauer)


    6 years ago

    Hello,

    I’ve been using Autoptimize for a long time and haven’t ever had an issue. Last week, I activated a companion plugin for Autoptimize which auto-clears cache (“Autoclear Autoptimize Cache“). Upon activation of the companion plugin, my website crashed. My website is hosted on Pantheon, and the crash was resolved upon removal of the companion plugin via Pantheon dashboard.

    Looking through my server logs at the time of the crash, I found that ~150 requests were made to ao_speedup_cachebuster within a few minutes.

    Can you help me understand what this request does, and why the influx of requests to ao_speedup_cachebuster could have cause the site to crash?

    Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Author Optimizing Matters

    (@optimizingmatters)

    When AO’s cache is emptied it “warms” itself up by doing one request for the homepage (with that cachebuster querystring). If something (that autoclear plugin) clears the cache too often, the cachebusting will happen too often as well.

    AO25 (which will be out mid-april) has some protection for that (won’t warm the cache more then once every 10 minutes), but you should talk to that autoclear developer about this to fix the root cause. Or you could try to re-configure AO not to generate that much cache off course ??

    hope this clarifies,
    frank

    Thread Starter mmosehauer

    (@mmosehauer)

    That explanation helps, thanks! I’ve reached out the companion plugin’s support, and hopefully they can provide further insight.

    Here’s the support topic I created on the Autoclear Autoptimize Cache page for anyone who experiences the same issue with this plugin.

    I’m investigating this and appreciate the information in your reply.

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