I've been having issues with getting the Newrelic monitoring component of w3-total-cache configured.
I've entered in the API key without an issue but I am unable to verify and when I do I get the following errors.
2013/07/05 15:05:56 [error] 17516#0: *6571 FastCGI sent in stderr: "PHP message: Error parsing XML file: Specification mandate value for attribute noshade
PHP message: Error parsing XML file: Opening and ending tag mismatch: hr line 9 and body
PHP message: Error parsing XML file: Opening and ending tag mismatch: body line 3 and html
PHP message: Error parsing XML file: Premature end of data in tag html line 1" while reading response header from upstream, client: 10.0.0.1, server: example.com, request: "GET /wp-admin/admin.php?page=w3tc_general HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "example.com", referrer: "http://example.com/wp-admin/admin.php?page=w3tc_general&w3tc_note=config_save"
The server itself is fine and I've configured Newrelic more time than I've care to count for some local Django/Rails applications, and the system itself is reporting to Newrelic, so this appears to be something specifically wrong with w3-total-cache/newrelic.
Has anyone else had success in getting this up and going?