为AWS ElastiCache添加CPU和内存利用率告警

亚林瓜子2026-03-20 11:09

CPUUtilization

4个vCPU以上的实例就需要使用------EngineCPUUtilization指标，如果是4个vCPU以下的使用------CPUUtilization指标。

bash 复制代码

aws cloudwatch put-metric-alarm \
  --alarm-name elasticache-high-cpu \
  --alarm-description "ElastiCache CPU above 80%" \
  --metric-name CPUUtilization \
  --namespace AWS/ElastiCache \
  --statistic Average \
  --period 300 \
  --threshold 80 \
  --comparison-operator GreaterThanThreshold \
  --dimensions Name=CacheClusterId,Value=my-redis-001 \
  --evaluation-periods 3  \
  --alarm-actions arn:aws:sns:us-east-1:123456789012:cache-alerts

DatabaseMemoryUsagePercentage

bash 复制代码

# Alarm: High Memory Usage
aws cloudwatch put-metric-alarm \
  --alarm-name elasticache-high-memory \
  --alarm-description "ElastiCache memory above 80%" \
  --metric-name DatabaseMemoryUsagePercentage \
  --namespace AWS/ElastiCache \
  --statistic Maximum \
  --period 300 \
  --threshold 80 \
  --comparison-operator GreaterThanThreshold \
  --dimensions Name=CacheClusterId,Value=my-redis-001 \
  --evaluation-periods 2 \
  --alarm-actions arn:aws:sns:us-east-1:123456789012:cache-alerts

为AWS ElastiCache添加CPU和内存利用率告警

CPUUtilization

DatabaseMemoryUsagePercentage

参考