Serverless cache metrics
The Amazon/ElastiCache namespace includes the following CloudWatch metrics for your Memcached serverless caches.
| Metric | Description | Unit |
|---|---|---|
|
BytesUsedForCache |
The total number of bytes used by the data stored in your cache. |
Bytes |
|
ElastiCacheProcessingUnits |
The total number of ElastiCacheProcessingUnits (ECPUs) consumed by the requests executed on your cache |
Count |
|
SuccessfulReadRequestLatency |
Latency of successful read requests. |
Microseconds |
|
SuccessfulWriteRequestLatency |
Latency of successful write requests |
Microseconds |
|
TotalCmdsCount |
Total count of all commands executed on your cache |
Count |
|
CurrConnections |
The number of client connections to your cache. |
Count |
|
ThrottledCmds |
The number of requests that were throttled by ElastiCache because the workload was scaling faster than ElastiCache can scale. |
Count |
|
NewConnections |
The total number of connections that have been accepted by the server during this period. |
Count |
|
CurrItems |
The number of items in the cache. |
Count |
|
NetworkBytesIn |
Total bytes transferred in to cache |
Bytes |
|
NetworkBytesOut |
Total bytes transferred out of cache |
Bytes |
|
Evictions |
The count of keys evicted by the cache |
Count |
|
Reclaimed |
The number of keys expired by the cache |
Count |
Command level metrics
ElastiCache also emits the following Memcached command level metrics
| Metric | Description | Unit |
|---|---|---|
|
CmdGet |
The number of get commands the cache has received. |
Count |
|
CmdSet |
The number of set commands the cache has received. |
Count |
|
CmdTouch |
The number of touch commands the cache has received. |
Count |
|
GetHits |
The number of get requests the cache has received where the key requested was found. |
Count |
|
GetMisses |
The number of get requests the cache has received where the key requested was not found. |
Count |
|
IncrHits |
The number of increment requests the cache has received where the key requested was found. |
Count |
|
IncrMisses |
The number of increment requests the cache has received where the key requested was not found. |
Count |
|
DecrHits |
The number of decrement requests the cache has received where the requested key was found. |
Count |
|
DecrMisses |
The number of decrement requests the cache has received where the requested key was not found. |
Count |
|
DeleteHits |
The number of delete requests the cache has received where the requested key was found. |
Count |
|
DeleteMisses |
The number of delete requests the cache has received where the requested key was not found. |
Count |
|
TouchHits |
The number of keys that have been touched and were given a new expiration time. |
Count |
|
TouchMisses |
The number of keys that have been touched, but were not found. |
Count |
|
CasHits |
The number of cas requests the cache has received where the requested key was found and the cas value matched. |
Count |
|
CasMisses |
The number of cas requests the cache has received where the key requested was not found. |
Count |
|
CasBadval |
The number of cas requests the cache has received where the cas value did not match the cas value stored. |
Count |
|
CmdFlush |
The number of flush commands the cache has received. |
Count |