Memcached
Memcached Integration
Version |
1.4.0 (View all) |
Compatible Kibana version(s) |
8.8.0 or higher |
Supported Serverless project types |
Security Observability |
Subscription level |
Basic |
Level of support |
Elastic |
Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering. As a result of its speed, scalability, simple design, efficient memory management and API support for most popular languages. Memcached is a popular choice for high-performance, large-scale caching use cases.
Compatibility
The Memcached Integration has been tested with 1.5 and 1.6 versions of Memcached. It is expected to work with all versions >= 1.5
Metrics
The below metrics are fetched from memcached:
Exported fields
| Field | Description | Type | Unit | Metric Type |
|---|---|---|---|---|
@timestamp | Event timestamp. | date | ||
agent.id | Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id. | keyword | ||
cloud.account.id | The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier. | keyword | ||
cloud.availability_zone | Availability zone in which this host, resource, or service is located. | keyword | ||
cloud.instance.id | Instance ID of the host machine. | keyword | ||
cloud.provider | Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean. | keyword | ||
cloud.region | Region in which this host, resource, or service is located. | keyword | ||
container.id | Unique container id. | keyword | ||
data_stream.dataset | Data stream dataset. | constant_keyword | ||
data_stream.namespace | Data stream namespace. | constant_keyword | ||
data_stream.type | Data stream type. | constant_keyword | ||
ecs.version | ECS version this event conforms to. ecs.version is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events. | keyword | ||
event.dataset | Event module | constant_keyword | ||
event.kind | Event kind | constant_keyword | ||
event.module | Event module | constant_keyword | ||
event.type | Event type | constant_keyword | ||
host.name | Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name, or a name specified by the user. The sender decides which value to use. | keyword | ||
memcached.stats.cmd.get | Number of "get" commands received since server startup not counting if they were successful or not. | long | counter | |
memcached.stats.cmd.set | Number of "set" commands serviced since server startup. | long | counter | |
memcached.stats.connections.current | Number of open connections to this Memcached server, should be the same value on all servers during normal operation. | long | counter | |
memcached.stats.connections.total | Numer of successful connection attempts to this server since it has been started. | long | counter | |
memcached.stats.current.bytes | Number of bytes currently used for caching items. | long | byte | gauge |
memcached.stats.evictions | Number of objects removed from the cache to free up memory for new items when Memcached reaches it's maximum memory setting (limit_maxbytes). | long | counter | |
memcached.stats.get.hits | Cache HitRate: Its the ratio of number of successful "get" commands (cache hits) since startup and the "cmd_get" value. | long | gauge | |
memcached.stats.get.misses | Number of failed "get" requests as nothing was cached for this key or the cached value was too old. | long | counter | |
memcached.stats.items.current | Number of items currently in this server's cache. | long | gauge | |
memcached.stats.items.total | Number of items ever stored on the server. The count increases by every new item stored in the cache. | long | counter | |
memcached.stats.limit.bytes | Number of bytes the server is allowed to use for storage. | long | byte | gauge |
memcached.stats.pid | Current process ID of the Memcached task. | long | ||
memcached.stats.read.bytes | Total number of bytes received by the server from the network. | long | byte | counter |
memcached.stats.threads | Number of threads used by the current Memcached server process. | long | counter | |
memcached.stats.uptime.sec | Memcached server uptime. | long | s | gauge |
memcached.stats.written.bytes | Total number of bytes sent to the network by the server. | long | byte | counter |
service.address | Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets). | keyword | ||
service.type | The type of the service data is collected from. The type can be used to group and correlate logs and metrics from one service type. Example: If logs or metrics are collected from Elasticsearch, service.type would be elasticsearch. | keyword | ||
tags | List of keywords used to tag each event. | keyword |
An example event for stats looks as following:
{
"@timestamp": "2022-06-24T06:06:06.337Z",
"agent": {
"ephemeral_id": "5c05824c-146b-464f-9030-b1e1eccc7c36",
"id": "a6434521-6e0b-4509-be07-c1591bcfe768",
"name": "docker-fleet-agent",
"type": "metricbeat",
"version": "8.2.0"
},
"data_stream": {
"dataset": "memcached.stats",
"namespace": "ep",
"type": "metrics"
},
"ecs": {
"version": "8.5.1"
},
"elastic_agent": {
"id": "a6434521-6e0b-4509-be07-c1591bcfe768",
"snapshot": false,
"version": "8.2.0"
},
"event": {
"agent_id_status": "verified",
"dataset": "memcached.stats",
"duration": 9903333,
"ingested": "2022-06-24T06:06:09Z",
"kind": "metric",
"module": "memcached"
},
"host": {
"architecture": "x86_64",
"containerized": false,
"hostname": "docker-fleet-agent",
"ip": [
"192.168.112.7"
],
"mac": [
"02:42:c0:a8:70:07"
],
"name": "docker-fleet-agent",
"os": {
"codename": "focal",
"family": "debian",
"kernel": "5.10.104-linuxkit",
"name": "Ubuntu",
"platform": "ubuntu",
"type": "linux",
"version": "20.04.4 LTS (Focal Fossa)"
}
},
"memcached": {
"stats": {
"bytes": {},
"cmd": {
"get": 0,
"set": 0
},
"connections": {
"current": 2,
"total": 24
},
"current": {
"bytes": 0
},
"evictions": 0,
"get": {
"hits": 0,
"misses": 0
},
"items": {
"current": 0,
"total": 0
},
"limit": {
"bytes": 67108864
},
"pid": 1,
"read": {
"bytes": 12
},
"threads": 4,
"uptime": {
"sec": 28
},
"written": {
"bytes": 2206
}
}
},
"metricset": {
"name": "stats",
"period": 10000
},
"service": {
"address": "tcp://elastic-package-service-memcached-1:11211",
"type": "memcached"
},
"tags": [
"memcached_stats"
]
}Changelog
| Version | Details | Kibana version(s) |
|---|---|---|
1.4.0 | Enhancement View pull request | 8.8.0 or higher |
1.3.0 | Enhancement View pull request | 8.8.0 or higher |
1.2.0 | Enhancement View pull request | 8.8.0 or higher |
1.1.0 | Enhancement View pull request | 8.8.0 or higher |
1.0.0 | Enhancement View pull request | 8.2.0 or higher |
0.4.1 | Bug fix View pull request | — |
0.4.0 | Enhancement View pull request | — |
0.3.1 | Enhancement View pull request | — |
0.3.0 | Enhancement View pull request | — |
0.2.0 | Enhancement View pull request | — |
0.1.0 | Enhancement View pull request | — |