Memcached OpenTelemetry Assets

Memcached is a high-performance, distributed, in-memory key-value cache used to reduce latency and offload read-heavy workloads from backing data stores. The Memcached OpenTelemetry assets provide dashboards, alert rules, and SLO templates for the memcachedreceiver data source, covering cache health, command throughput, connections, hit ratio, evictions, and resource utilization.

The Memcached OpenTelemetry assets have been tested with OpenTelemetry Memcached receiver v0.146.0 and Memcached 1.6.

You need Elasticsearch for storing and searching your data and Kibana for visualizing and managing it. You can use our hosted Elasticsearch Service on Elastic Cloud, which is recommended, or self-manage the Elastic Stack on your own hardware.

The Memcached receiver uses the stats command to collect metrics. No special service-side configuration is required; the receiver works out of the box as long as the OpenTelemetry Collector can reach the memcached instance on its stats port (default 11211).

You can run the Memcached receiver with the OpenTelemetry Collector or the Elastic OpenTelemetry Distribution (EDOT) Collector. Configure the receiver, the elasticsearch/otel exporter with mapping.mode: otel, and the service pipeline as shown below.

receivers:
  memcached:
    endpoint: "<MEMCACHED_ENDPOINT>"
    collection_interval: 10s
    transport: tcp

exporters:
  elasticsearch/otel:
    apikey: ${env:ES_API_KEY}
    endpoint: "<ES_ENDPOINT>"

service:
  pipelines:
    metrics:
      receivers: [memcached]
      exporters: [elasticsearch/otel]
		

Refer to the metadata.yaml of the OpenTelemetry Memcached receiver for details on available metrics.

This integration includes one or more Kibana dashboards that visualizes the data collected by the integration. The screenshots below illustrate how the ingested data is displayed.

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