Cache Volume

Each configured cache volume receives a complete set of statistics from Traffic Server. They are differentiated from each other by the incrementing number that is part of the statistic name. The volume number begins at 0 and increments by 1 for each additional volume.

The statistics are documented in this section using the default volume number in a configuration with only one cache volume: 0.

proxy.process.cache.volume_0.bytes_total
Collection:global
Type:gauge
Datatype:integer

Represents the total number of bytes allocated for the cache volume.

proxy.process.cache.volume_0.bytes_used
Collection:global
Type:gauge
Datatype:integer

Represents the number of bytes in this cache volume which are occupied by cache objects.

proxy.process.cache.volume_0.directory_collision
Collection:global
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.direntries.total
Collection:global
Type:gauge
Datatype:integer

Represents the total number of directory entries which have been allocated in this cache volume.

proxy.process.cache.volume_0.direntries.used
Collection:global
Type:gauge
Datatype:integer

Represents the number of allocated directory entries in this cache volume which are in use.

proxy.process.cache.volume_0.evacuate.active
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.evacuate.failure
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.evacuate.success
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.frags_per_doc.1
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.frags_per_doc.2
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.frags_per_doc.3+
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.gc_bytes_evacuated
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.gc_frags_evacuated
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.hdr_marshal_bytes
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.hdr_marshals
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.lookup.active
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.lookup.failure
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.lookup.success
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.percent_full
Collection:global
Type:gauge
Datatype:integer
proxy.process.cache.volume_0.pread_count
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.ram_cache.bytes_used
Collection:global
Type:gauge
Datatype:integer
proxy.process.cache.volume_0.ram_cache.hits
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.ram_cache.misses
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.ram_cache.total_bytes
Collection:global
Type:gauge
Datatype:integer
proxy.process.cache.volume_0.read.active
Collection:global
Type:gauge
Datatype:integer
proxy.process.cache.volume_0.read_busy.failure
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.read_busy.success
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.read.failure
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.read.success
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.remove.active
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.remove.failure
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.remove.success
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.scan.active
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.scan.failure
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.scan.success
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.update.active
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.update.failure
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.update.success
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.vector_marshals
Collection:global
Type:gauge
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.write.active
Collection:global
Type:gauge
Datatype:integer
proxy.process.cache.volume_0.write.backlog.failure
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.write_bytes_stat
Collection:global
Type:counter
Datatype:integer
Gathered:No
proxy.process.cache.volume_0.write.failure
Collection:global
Type:counter
Datatype:integer
proxy.process.cache.volume_0.write.success
Collection:global
Type:counter
Datatype:integer