Support » Plugin: Swift Performance Lite » Cross site Cache pollination

  • rivmedia

    (@rivmedia)



    Hi Guys,

    We’ve experienced this before with different platforms where if you have multiple sites using the same plugin, all using memcache. You get cross site cache pollination.

    Basically you see cache being pulled from one domain, showing on another domain which is using the same caching settings.

    This is typically because there is no difference ID or domain differential, best practice is generally to add base URL to cachekey to prevent cross-pollination

    We’ve been using w3T for years, overall very happy with it. But upon trying swift this is the first technical glitch we’ve found within hours of implementing on to 5 sites on the same server.

    Please fix.

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  • Plugin Author swte

    (@swte)

    Hi,

    Swift is using the domain in the memcache keys, so it shouldn’t cause an issue (I couldn’t even reproduce it on test server), however as a quick fix you can use Disk + Rewrites, it will be also the fastest option, memcache is a fallback only if disk is not writable for the plugin for some reason

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