OpenStack Telemetry (Ceilometer)
Key New Features
- Support for partitioning metric collection load across horizontally scaled-out central agents
- New method of partitioning alarm evaluation load using tooz coordination, as opposed to a hand-crafted protocol
- Much improved SQLAlchemy storage performance & scalability, so that MySQL or PostgreSQL can be used as the metering store for PoCs or small deployments
- Support for hardware-oriented monitoring of IPMI sensors via notifications from either Ironic or a new standalone agent
- More flexible & efficient SNMP monitoring:
- batching queries for multiple SNMP metrics into a single call to each daemon
- dynamic discovery of nodes deployed by TripleO for SNMP polling
- the ability to more easily extend the range of SNMP metrics that ceilometer gathers
- the ability to derive new metrics from arithmetic transformations applied to multiple primary metrics
- Option to split off the alarms persistence into a separate database
- Option to use notifications instead of RPC for metering messages
- Metering of Neutron networking services: LBaaS, FWaaS & VPNaaS
- New XenAPI compute inspector
- Support for persisting events via the MongoDB & Hbase storage drivers (previously limited to SQLAlchemy)
- Support for per-device metering of instance disks
- Use of ceilometer as a collector for os-profiler data
- New Telemetry section of the Cloud Administrator Guide
