Mackerel supports obtaining and monitoring Amazon ElastiCache metrics in AWS Integration. When integrating with AWS Integration, billable targets are determined using the conversion 1 Node = 1 Micro Host. In addition to this, depending on the number of metrics retrieved, you may be charged for exceeding the maximum number of metrics per micro host.
Please refer to the following page for AWS Integration configuration methods and a list of supported AWS services.
AWS Integration
Obtaining metrics
The metrics obtainable with AWS Integration’s ElastiCache support are as follows. For Metric explanations, refer to the AWS help pages (host level metrics, Memcached, and Redis).
The maximum number of metrics obtainable is 48 with Memcached, and 70 with Redis.
Host level metrics
| Graph name | Metric | Metric name in Mackerel | Unit | Statistics |
|---|---|---|---|---|
| CPU | CPUUtilization | elasticache.cpu.used | percentage | Average |
| CPU Credit | CPUCreditBalance CPUCreditUsage |
elasticache.cpu_credit.balance elasticache.cpu_credit.used |
float | Average |
| Swap Usage | SwapUsage | elasticache.swap.usage | bytes | Average |
| Freeable Memory | FreeableMemory | elasticache.memory.freeable | bytes | Average |
| Network Traffic | NetworkBytesIn NetworkBytesOut |
elasticache.network.in elasticache.network.out |
bytes | Average |
| Network Packets | NetworkPacketsIn NetworkPacketsOut |
elasticache.network_packets.in elasticache.network_packets.out |
integer | Sum |
| Network Allowance Exceeded | NetworkBandwidthInAllowanceExceeded NetworkBandwidthOutAllowanceExceeded NetworkConntrackAllowanceExceeded NetworkLinkLocalAllowanceExceeded NetworkPacketsPerSecondAllowanceExceeded |
network_allowance_exceeded.in network_allowance_exceeded.out network_allowance_exceeded.conntrack network_allowance_exceeded.link_local network_allowance_exceeded.pps |
integer | Average |
Memcached metrics
| Graph name | Metric | Metric name in Mackerel | Unit | Statistics |
|---|---|---|---|---|
| Commands | CmdGet CmdSet CmdFlush CmdTouch CmdConfigGet CmdConfigSet |
elasticache.memcached.commands.get elasticache.memcached.commands.set elasticache.memcached.commands.flush elasticache.memcached.commands.touch elasticache.memcached.commands.config_get elasticache.memcached.commands.config_set |
float | Average |
| Cache Hits/Misses | GetHits GetMisses DeleteHits DeleteMisses IncrHits IncrMisses DecrHits DecrMisses CasBadval CasHits CasMisses TouchHits TouchMisses |
elasticache.memcached.cache.get_hits elasticache.memcached.cache.get_misses elasticache.memcached.cache.delete_hits elasticache.memcached.cache.delete_misses elasticache.memcached.cache.incr_hits elasticache.memcached.cache.incr_misses elasticache.memcached.cache.decr_hits elasticache.memcached.cache.decr_misses elasticache.memcached.cache.cas_badval elasticache.memcached.cache.cas_hits elasticache.memcached.cache.cas_misses elasticache.memcached.cache.touch_hits elasticache.memcached.cache.touch_misses |
float | Average |
| Evictions | Evictions | elasticache.memcached.evictions.evictions | float | Average |
| Unfetched | EvictedUnfetched ExpiredUnfetched |
elasticache.memcached.unfetched.evicted elasticache.memcached.unfetched.expired |
float | Average |
| Traffics | BytesReadIntoMemcached BytesWrittenOutFromMemcached |
elasticache.memcached.traffics.bytes_read_into_memcached elasticache.memcached.traffics.bytes_written_out_from_memcached |
bytes | Average |
| Connections | CurrConnections NewConnections |
elasticache.memcached.connections.current elasticache.memcached.connections.new |
float | Average |
| Items | CurrItems NewItems Reclaimed CurrConfig SlabsMoved |
elasticache.memcached.items.current elasticache.memcached.items.new elasticache.memcached.items.reclaimed elasticache.memcached.items.current_config elasticache.memcached.items.slabs_moved |
float | Average |
| Memory | UnusedMemory BytesUsedForHash BytesUsedForCacheItems |
elasticache.memcached.memory.unused elasticache.memcached.memory.used_for_hash elasticache.memcached.memory.used_for_cache_items |
bytes | Average |
Redis metrics
| Graph name | Metric | Metric name in Mackerel | Unit | Statistics |
|---|---|---|---|---|
| Commands | GetTypeCmds SetTypeCmds KeyBasedCmds StringBasedCmds HashBasedCmds ListBasedCmds SetBasedCmds ClusterBasedCmds SortedSetBasedCmds EvalBasedCmds GeoSpatialBasedCmds HyperLogLogBasedCmds PubSubBasedCmds StreamBasedCmds |
elasticache.redis.commands.get_type elasticache.redis.commands.set_type elasticache.redis.commands.key_based elasticache.redis.commands.string_based elasticache.redis.commands.hash_based elasticache.redis.commands.list_based elasticache.redis.commands.set_based elasticache.redis.commands.cluster_based elasticache.redis.commands.sorted_set_based elasticache.redis.commands.eval_based elasticache.redis.commands.geo_spatial_based elasticache.redis.commands.hyper_log_log_based elasticache.redis.commands.pub_sub_based elasticache.redis.commands.stream_based |
float | Average |
| Cache Hits/Misses | CacheHits CacheMisses |
elasticache.redis.cache.cache_hits elasticache.redis.cache.cache_misses |
float | Average |
| Evictions | Evictions | elasticache.redis.evictions.evictions | float | Average |
| Failures | AuthenticationFailures CommandAuthorizationFailures KeyAuthorizationFailures |
elasticache.redis.failures.authentication elasticache.redis.failures.command_authorization elasticache.redis.failures.key_authorization |
integer | Sum |
| Memory | BytesUsedForCache | elasticache.redis.memory.used_for_cache | bytes | Average |
| Redis CPU | EngineCPUUtilization | elasticache.redis.cpu.engine | percentage | Average |
| Disk IO Bytes | BytesReadFromDisk BytesWrittenToDisk |
elasticache.redis.disk_io_bytes.read elasticache.redis.disk_io_bytes.write |
bytes | Average |
| Disk IO Items | NumItemsReadFromDisk NumItemsWrittenToDisk |
elasticache.redis.disk_io_items.read elasticache.redis.disk_io_items.write |
float | Average |
| Is Primary | IsPrimary (IsMaster) | elasticache.redis.is_primary.primary | integer | Average |
| Primary Link Health Status | PrimaryLinkHealthStatus (MasterLinkHealthStatus) | elasticache.redis.primary_link_health_status.sync | integer | Average |
| Keys Tracked | KeysTracked | elasticache.redis.keys_tracked.count | integer | Sum |
| Connections | CurrConnections NewConnections |
elasticache.redis.connections.current elasticache.redis.connections.new |
float | Average |
| Items | CurrItems CurrVolatileItems Reclaimed |
elasticache.redis.items.current elasticache.redis.items.current_volatile elasticache.redis.items.reclaimed |
float | Average |
| Active Defrag | ActiveDefragHits | elasticache.redis.active_defrag.hits | integer | Sum |
| Cache Hit Rate | CacheHitRate | elasticache.redis.cache_hit_rate.hit | percentage | Average |
| Memory Percentage | DatabaseMemoryUsagePercentage | elasticache.redis.memory_percentage.database | percentage | Average |
| Average TTL | DB0AverageTTL | elasticache.redis.average_ttl.db0 | float | Average |
| Fragmentation Ratio | MemoryFragmentationRatio | elasticache.redis.fragmentation_ratio.memory | float | Average |
| Replication Bytes | ReplicationBytes | elasticache.redis.replication_bytes.replication | bytes | Average |
| Replication Lag | ReplicationLag | elasticache.redis.replication_lag.lag | float | Average |
| Save In Progress | SaveInProgress | elasticache.redis.save_in_progress.bgsave | integer | Maximum |
| Commands Latency | GetTypeCmdsLatency SetTypeCmdsLatency KeyBasedCmdsLatency StringBasedCmdsLatency HashBasedCmdsLatency ListBasedCmdsLatency SetBasedCmdsLatency ClusterBasedCmdsLatency SortedSetBasedCmdsLatency EvalBasedCmdsLatency GeoSpatialBasedCmdsLatency HyperLogLogBasedCmdsLatency PubSubBasedCmdsLatency StreamBasedCmdsLatency |
elasticache.redis.commands_latency.get_type elasticache.redis.commands_latency.set_type elasticache.redis.commands_latency.key_based elasticache.redis.commands_latency.string_based elasticache.redis.commands_latency.hash_based elasticache.redis.commands_latency.list_based elasticache.redis.commands_latency.set_based elasticache.redis.commands_latency.cluster_based elasticache.redis.commands_latency.sorted_set_based elasticache.redis.commands_latency.eval_based elasticache.redis.commands_latency.geo_spatial_based elasticache.redis.commands_latency.hyper_log_log_based elasticache.redis.commands_latency.pub_sub_based elasticache.redis.commands_latency.stream_based |
float | Average |
