Policy names are prefixed with AWS Elasticache –
| Policy name | Duration | Condition 1 | (and) Condition 2 | Category | Description |
|---|---|---|---|---|---|
| Memcached – CPU Threshold Exceeded | 5 min | aws.elasticache.cpuutilization has a static threshold >90% | CRITICAL | The Memcached Node has exceeded the CPU threshold of 90%. The cache cluster may need to be scaled, either by using a larger node type or by adding more nodes. | |
| Memcached – Elevated CPU Utilization | 30 min | aws.elasticache.cpuutilization has an upper baseline deviation + has a static threshold> 50% | WARNING | CPU utilization for the Memcached Node has been higher than expected for at least 30 minutes. | |
| Memcached – Elevated Swap Usage | 5 min | aws.elasticache.swapusage has a static threshold >53428800 | CRITICAL | Swap usage on the Memcached Node has exceeded 50 MB. It is recommended that you increase the value of the ConnectionOverhead parameter. | |
| Redis – Elevated Command Executions | 30 min | aws.elasticache..*cmds has an upper baseline deviation + an upper contextual deviation | WARNING | One or more command types on the Redis node have been experiencing a higher than expected number of executions for at least 30 minutes. | |
| Redis – Elevated CPU Utilization | 30 min | aws.elasticache.cpuutilization has an upper baseline deviation + a static threshold > 30% | WARNING | CPU utilization for the Redis Node has been higher than expected for at least 30 minutes. | |
| Redis – Elevated Network Activity | 30 minutes | aws.elasticache.networkbytesin has an upper baseline deviation + an upper contextual deviation | aws.elasticache.networkbytesouthas an upper baseline deviation + an upper contextual deviation | WARNING | Network activity to/from the Redis node has been higher than expected for at least 30 minutes. |
| Redis – Elevated Number of New Connections | 30 min | aws.elasticache.newconnections has an upper baseline deviation + an upper contextual deviation | WARNING | The number of new connections being opened to the Redis node has beenhigher than expected for at least 30 minutes. | |
| Redis – Elevated Replication Lag | 30 min | aws.elasticache.replicationlag has an upper baseline deviation | WARNING | Replication lag for the Redis node has been higher than expected for atleast 30 minutes. | |
| Redis – Elevated Swap Usage | 30 min | aws.elasticache.swapusage has an upper baseline deviation | WARNING | Swap usage on the Redis Node has been higher than expected for at least30 minutes. Extended swapping indicates a low physical memory condition,and can lead to performance degradation. | |
| Redis – Extended Period of Evictions | 30 min | aws.elasticache.swapusage has a static threshold > 0 | WARNING | Evictions for the Redis node have been greater than 0 for at least 30minutes. This could indicate a low memory condition, and may impactperformance. | |
| Redis – Low Cache Hit Rate | 30 min | aws.elasticache.cachehitrate has an upper baseline deviation + an upper contextual deviation | WARNING | The cache hit rate for the Redis node has been lower than expected forat least 30 minutes. |