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We have a site under Magnento 2.1.0 CE and have been experiencing a strange issue. After being hit hard by traffic (normally hacking attempts or Asian spiders that ignore robots.txt), some pages on the frontend or backend lose their styling.

When we look at what comes back from the server, the page is started at the body tag - there is no <html> or <head> to be found, which is why there is no styling. Experimenting with clearing caches, it is clearing the layout cache that brings the pages back to normal.

There are no relevant errors when presenting these pages. 200 response and no exceptions except when Magento gets confused because some of the page is missing.

We have been using redis cache (just turned this off to see if it makes a difference) and the server setup is nginx 1.8, php 7.0.9 and mysql 5.6.

This problem does remind me of the cache corruption issue in Magento 1, but firstly one would hope this problem would not carry over into Magento 2 and secondly that the php error would have been fixed by v7.


UPDATE: It's worth noting that this problem seems to have gone away by 2.1.3. This isn't an "answer" as such, as it's possible people are stuck on 2.1.0 and would like to solve this.

  • How many store views do you have? How frequently does this occur? Any custom crons running at the same time? – Luke Rodgers Oct 10 '16 at 10:32
  • It happens only on homepage ? Do you have Varnish ? – obscure Oct 10 '16 at 10:40
  • Oh dear - it does look like the xmlrpc cache corruption issue again - it's not fixed even in php 7.0.11. Talking to Magento (github.com/magento/magento2/issues/6942) about adding in the libxml_disable_entity_loader(false); line in the bootstrap.php file. – Robert Egginton Oct 10 '16 at 11:01
  • @LukeRodgers Only three store views. Only cron running is the Magento cron, though certainly there will be extensions within Magento with cron jobs. I think it's likely to be the XMLRPC issue though. – Robert Egginton Oct 10 '16 at 11:02
  • @obscure Thanks for the comment. It happens on all sorts of pages frontend and backend. We're using the non-varnish cache. – Robert Egginton Oct 10 '16 at 11:03

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