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The Geographical Redundancy feature enables an application to be fully restored and operational at an alternate data center with minimal downtime and data loss if the primary data center experiences a critical failure.
Slow queries should be investigated and optimized wherever possible. Several resources are available for identifying slow database queries when they occur and identifying their source.
Notifications can be configured for a variety of event types including detected performance metrics anomalies, the success or failure of code deployments, and vulnerabilities detected by Codebase Manager.
Performance metrics anomalies are events that indicate a degradation in performance related to a production environment’s object cache hit rate, slow queries, number of 5xx responses from the origin server, or the rate of 429 responses from the edge server—as measured against the known range of metrics for a performant application.
WordPress VIP supports PHP sessions for storing short-lived, ephemeral session data. Session data is backed by Memcached to improve performance, but to ensure a site’s stability and scalability the performance of its underlying code should be optimized wherever possible.
Direct access to an environment’s database is limited, but users can view data in a read-only phpMyAdmin console session or interact with the databases on WPVIP through WP-CLI commands run via VIP-CLI.
Enterprise Search can improve the performance of search results for a WordPress site, but limitations exist and default behaviors should be reviewed.
Limitations exist for redirects and custom rewrite rules for static asset URLs.
The default behavior of domains that are added to the "Domains & TLS" panel of an environment's VIP Dashboard is dependent on whether the www variant or the non-www variant is added.
When a code deployment occurs only a select group of cache clearing events will be triggered.