Couchbase Eventing Service, introduced in Couchbase Data Platform 5.5 and enhanced with Timers in version 6.0, offers various best practices for effective use. It is essential to avoid using the Debugger in production environments due to potential thread allocation issues, and to manage application log files according to log rotation policies. Functions should not cause cascading writes between buckets, and JavaScript code should be encapsulated in try-catch blocks to handle runtime exceptions. Proper management of the Metadata bucket is crucial to prevent loss of checkpoint information and ensure data integrity, recommending against its use for other applications and advocating for sufficient replicas to prevent data loss. Infrastructure monitoring and provisioning should rely on statistics from the Administration console, with appropriate adjustments made to Eventing nodes and resources if function backlogs increase or timeouts occur. When using timers for data-archival, ample time should be allocated to ensure document availability. Understanding feed boundaries and prioritizing 'From Now' processing can optimize performance, while nodes running the Eventing Service should be core-heavy and not host other Couchbase services to maximize compute efficiency. Further insights into the service's capabilities are demonstrated in presentations from Connect Silicon Valley and Connect New York in 2018.