Memcached

Sensor (Data Collection)

Tracked Configuration

  • Version
  • Port
  • Started at
  • Maxbytes
  • max connections

Metrics

  • Commands
  • Reads/Writes
  • Get Hits/Misses
  • Delete Hits/Misses
  • Flush Command
  • Evictions
  • Used Bytes
  • Connections

Health Signatures

Health Description
Eviction High key eviction
Flush all Flush all command executed
Queued Connections Number of queued connections increases
Maxbytes limit Used bytes by memcached reached maxbytes limit
Yielded Connections Number of yielded connections increases

Configuration

In order to enable in depth metric monitoring, you need to inform the Agent about the credentials to access monitoring information. You can configure it in the agent <agent_install_dir>/etc/instana/configuration.yml:

com.instana.plugin.memcached:
  user: ''
  password: ''