AWS Elasticache Policies

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.