Advanced Monitoring
Advanced monitoring in ElastiCache provides in-depth insight into the performance, health, and state of your ElastiCache clusters. It includes real-time monitoring, metric collection, and analytics using Amazon CloudWatch, enabling you to set alarms and notifications for defined thresholds. It covers various categories such as performance, cache, and infrastructure metrics. Performance metrics include cache hit ratio, cache miss ratio, and latency, while cache metrics include evictions, and storage utilization. Infrastructure metrics include CPU utilization and memory usage. Using advanced monitoring, you can identify anomalies, optimize cache performance, and ensure that the cache functions at peak efficiency.
Advanced Monitoring for Amazon ElastiCache
Advanced Monitoring provides a comprehensive and detailed view of your Amazon ElastiCache workloads. It offers valuable insights on your cache hit ratio, evictions, curr_connections, CPUUtilization and many more, collected every 1 minute.
Why it's important: It helps in analyzing the behavior of your cache clusters and efficiently managing resources. It identifies potential performance issues and areas of optimization, enabling proactive problem resolution and maintaining application health.
How it works: Once you enable Advanced Monitoring for your ElastiCache nodes, Amazon CloudWatch begins capturing and analyzing various system level metrics at a granular level. You can visualize these metrics using CloudWatch dashboards and set alarms on any unusual activity.
Exam Tips - Answering Questions on Advanced Monitoring:
1. Understand the key metrics provided, such as Cache Hits, Cache Misses, CPU Utilization, and Evictions, their relevance and how they can influence your application’s performance.
2. Know when to use Advanced Monitoring and Basic Monitoring. Remember that Advanced Monitoring provides more detailed metrics and at frequent intervals.
3. Be aware of how to interpret CloudWatch alarms and when to action based on them. Remember the importance of setting up alarms for critical performance metrics.
4. Familiarize with the process of enabling and disabling Advanced Monitoring for ElastiCache clusters.
AWS Certified Solutions Architect - Amazon ElastiCache Example Questions
Test your knowledge of Amazon Simple Storage Service (S3)
Question 1
A company wants to monitor the health of its applications running on multiple Amazon EC2 instances. Which AWS service should they use to achieve this?
Question 2
You have multiple EC2 instances running in multiple regions, and you want to aggregate the logs for analysis. What combination of AWS services can achieve this desired outcome?
Question 3
A company wants to monitor an application that is using Amazon ElastiCache for Redis, and they want to detect issues affecting cache performance. Which Amazon CloudWatch metric should they primarily focus on?
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