ob-col/receiver/memcachedreceiver/documentation.md

memcached

Default Metrics

The following metrics are emitted by default. Each of them can be disabled by applying the following configuration:

metrics:
  <metric_name>:
    enabled: false

memcached.bytes

Current number of bytes used by this server to store items.

Unit	Metric Type	Value Type
By	Gauge	Int

memcached.commands

Commands executed.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{commands}	Sum	Int	Cumulative	true

Attributes

Name	Description	Values
command	The type of command.	Str: get, set, flush, touch

memcached.connections.current

The current number of open connections.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{connections}	Sum	Int	Cumulative	false

memcached.connections.total

Total number of connections opened since the server started running.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{connections}	Sum	Int	Cumulative	true

memcached.cpu.usage

Accumulated user and system time.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
s	Sum	Double	Cumulative	true

Attributes

Name	Description	Values
state	The type of CPU usage.	Str: system, user

memcached.current_items

Number of items currently stored in the cache.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{items}	Sum	Int	Cumulative	false

memcached.evictions

Cache item evictions.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{evictions}	Sum	Int	Cumulative	true

memcached.network

Bytes transferred over the network.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
by	Sum	Int	Cumulative	true

Attributes

Name	Description	Values
direction	Direction of data flow.	Str: sent, received

memcached.operation_hit_ratio

Hit ratio for operations, expressed as a percentage value between 0.0 and 100.0.

Unit	Metric Type	Value Type
%	Gauge	Double

Attributes

Name	Description	Values
operation	The type of operation.	Str: increment, decrement, get

memcached.operations

Operation counts.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{operations}	Sum	Int	Cumulative	true

Attributes

Name	Description	Values
type	Result of cache request.	Str: hit, miss
operation	The type of operation.	Str: increment, decrement, get

memcached.threads

Number of threads used by the memcached instance.

Unit	Metric Type	Value Type	Aggregation Temporality	Monotonic
{threads}	Sum	Int	Cumulative	false