需要刷新的Magento会话文件存储

Question

I've moved stores to a new server that doesn't support memcache, I've fallen back to writing to the file system. When a user is visiting for the first time and puts an item in the cart nothing happens, it redirects them to the cart page which states no items added.

Next time the user tries adding a product into the cart it will be visible but sometimes needing a refresh in order to see it. Same happens with removing an item from the cart, mini cart does reflect in real time. Seems like an issue with the write process not completing before being read?

The var/sessions folder has 0777 for the purpose of testing.

Is this a common issue?

Have the following for file storage

<session_save><![CDATA[files]]></session_save>
<session_cache_limiter><![CDATA[]]></session_cache_limiter>

When previously using memcache it looked like

<session_save><![CDATA[memcache]]></session_save>
<session_save_path><![CDATA[unix:///var/tmp/memcached.sess.newdomain.co.nz_sessions.sock?persistent=1&weight=2&timeout=10&retry_interval=10]]></session_save_path>
<session_cache_limiter><![CDATA[]]></session_cache_limiter>

Answer 1

So after debugging every single cache possible it actually turned out to be browser caching the site, this was happening for everybody that visited the site, why I still have no idea.

I added the following in .htaccess which seems to have resolved the issue

<FilesMatch "\.(html|htm|js|css|php)>
    FileETag None
    Header unset ETag
    Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
    Header set Pragma "no-cache"
    Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
</FilesMatch>