Memcached Metrics
See Application Integrations for more information.
memcache.avg_item_size
The average size of an item.
memcache.bytes
The current number of bytes used by this server to store items.
memcache.bytes_read_rate
The rate of bytes read from the network by this server.
memcache.bytes_written_rate
The rate of bytes written to the network by this server.
memcache.cas_badval_rate
The rate at which keys are compared and swapped where the comparison (original) value did not match the supplied value.
memcache.cas_hits_rate
The rate at which keys are compared and swapped and found present.
memcache.cas_misses_rate
The rate at which keys are compared and swapped and not found present.
memcache.cmd_flush_rate
The rate of flush_all
commands.
memcache.cmd_get_rate
The rate of get
commands.
memcache.cmd_set_rate
The rate of set
commands.
memcache.connection_structures
The number of connection structures allocated by the server.
memcache.curr_connections
The number of open connections to this server.
memcache.curr_items
The current number of items stored by the server.
memcache.delete_hits_rate
The rate at which delete commands result in items being removed.
memcache.delete_misses_rate
The rate at which delete commands result in no items being removed.
memcache.evictions_rate
The rate at which valid items are removed from cache to free memory for new items.
memcache.fill_percent
The amount of memory being used by the server for storing items as a percentage of the max allowed.
memcache.get_hit_percent
The percentage of requested keys that are found present since the start of the Memcached server.
memcache.get_hits_rate
The rate at which keys are requested and found present.
memcache.get_misses_rate
The rate at which keys are requested and not found.
memcache.items.age
The age of the oldest item in the LRU.
memcache.items.crawler_reclaimed_rate
The rate at which items freed by the LRU Crawler.
memcache.items.direct_reclaims_rate
The rate at which worker threads had to directly pull LRU tails to find memory for a new item.
memcache.items.evicted_nonzero_rate
The rate at which nonzero items which had an explicit expire time set had to be evicted from the LRU before expiring.
memcache.items.evicted_rate
The rate st which items had to be evicted from the LRU before expiring.
memcache.items.evicted_time
The number of seconds since the last access for the most recent item evicted from this class.
memcache.items.evicted_unfetched_rate
The rate at which valid items evicted from the LRU which were never touched after being set.
memcache.items.expired_unfetched_rate
The rate at which expired items reclaimed from the LRU which were never touched after being set.
memcache.items.lrutail_reflocked_rate
The rate at which items found to be refcount locked in the LRU tail.
memcache.items.moves_to_cold_rate
The rate at which items were moved from HOT or WARM into COLD.
memcache.items.moves_to_warm_rate
The rate at which items were moved from COLD to WARM.
memcache.items.moves_within_lru_rate
The rate at which active items were bumped within HOT or WARM.
memcache.items.number
The number of items presently stored in this slab class.
memcache.items.number_cold
The number of items presently stored in the COLD LRU.
memcache.items.number_hot
The number of items presently stored in the HOT LRU.
memcache.items.number_noexp
The number of items presently stored in the NOEXP class.
memcache.items.number_warm
The number of items presently stored in the WARM LRU.
memcache.items.outofmemory_rate
The rate at which the underlying slab class was unable to store a new item.
memcache.items.reclaimed_rate
The rate at which entries were stored using memory from an expired entry.
memcache.items.tailrepairs_rate
The rate at which Memcached self-healed a slab with a refcount leak.
memcache.limit_maxbytes
The number of bytes this server is allowed to use for storage.
memcache.listen_disabled_num_rate
The rate at which the server has reached the max connection limit.
memcache.pointer_size
The default size of pointers on the host OS (generally 32 or 64).
memcache.rusage_system_rate
The fraction of user time the CPU spent executing this server process.
memcache.rusage_user_rate
The fraction of time the CPU spent executing kernel code on behalf of this server process.
memcache.slabs.active_slabs
The total number of slab classes allocated.
memcache.slabs.cas_badval_rate
The rate at which CAS commands failed to modify a value due to a bad CAS ID.
memcache.slabs.cas_hits_rate
The rate at which CAS commands modified this slab class.
memcache.slabs.chunk_size
The amount of space each chunk uses.
memcache.slabs.chunks_per_page
The number of chunks that exist within one page.
memcache.slabs.cmd_set_rate
The rate at which set requests stored data in this slab class.
memcache.slabs.decr_hits_rate
The rate at which decrs commands modified this slab class.
memcache.slabs.delete_hits_rate
The rate at which delete commands succeeded in this slab class.
memcache.slabs.free_chunks
The number of chunks not yet allocated to items or freed via delete.
memcache.slabs.free_chunks_end
The number of free chunks at the end of the last allocated page.
memcache.slabs.get_hits_rate
The rate at which get requests were serviced by this slab class.
memcache.slabs.incr_hits_rate
The rate at which incrs commands modified this slab class.
memcache.slabs.mem_requested
The number of bytes requested to be stored in this slab.
memcache.slabs.total_chunks
The total number of chunks allocated to the slab class.
memcache.slabs.total_malloced
The total amount of memory allocated to slab pages.
memcache.slabs.total_pages
The total number of pages allocated to the slab class.
memcache.slabs.touch_hits_rate
The rate of touches serviced by this slab class.
memcache.slabs.used_chunks
The number of chunks that have been allocated to items.
memcache.slabs.used_chunks_rate
The rate at which chunks have been allocated to items.
memcache.threads
The number of threads used by the current Memcached server process.
memcache.total_connections_rate
The rate at which connections to this server are opened.
memcache.total_items
The total number of items stored by this server since it started.
memcache.uptime
The number of seconds this server has been running.
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