Infinispan Cache Metrics
Internal
Overview
Each Infinispan individual cache exposes a number of performance metrics, and the cache container managing those caches aggregate some of those metrics at container level. These metrics are described below.
Read, Write and Remove Count
These statistics are maintained at individual cache level, as well as container.
The number of reads can be calculated by adding the number of hits and misses.
The number of writes is maintained individually as stores.
The number of deletions from the cache can be calculated by adding removeHits and removeMisses
It is preferable to expose these metrics as a rate per second. Some monitoring solutions allow the rate to be calculated automatically (see Data Dog counters).
Individual Cache Reference:
| JDG 6 JMX | JDG 6 CLI |
| JDG 7 JMX | JDG 7 CLI |
Cache Container Reference:
| JDG 6 JMX | JDG 6 CLI |
| JDG 7 JMX | JDG 7 CLI |
Average Read, Write and Remove Time
These metrics represent an individual cache read/write/remove operation average time response time, in milliseconds. For reads, the value includes hits and misses. May return null if the cache is not started. Maintained as a long. The metric always maintains the last value, even after the cache become idle. In order to reset it, you must reset underlying caches statistics, individually, with :reset-statistics.
Reference:
| JDG 6 JMX | JDG 6 CLI |
| JDG 7 JMX | JDG 7 CLI |
The values for these metrics are aggregated at container level, for all caches managed by this container. They are calculated by averaging values for of the corresponding values for individual cache managed by this container.
Reference:
| JDG 6 JMX | JDG 6 CLI |
| JDG 7 JMX | JDG 7 CLI |
Number of Entries
Resetting Statistics
it is possible to reset statistics for an individual cache using the :reset-statistics CLI operation, applied to the management model node corresponding to that cache.
JDG 7
aliases
The list of aliases for this cache container. Type: String array.
hits
The number of cache attribute hits. Type: Long. TODO c34rsz. This is an additive value for all caches managed by this container.
misses
The number of cache attribute misses. Type: Long. TODO c34rsz. This is an additive value for all caches managed by this container.
stores
The number of cache attribute put operations (writes). Type: Long. TODO c34rsz. This is an additive value for all caches managed by this container.
JDG 6
cluster-members
See JMX clusterMembers.