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