release v2.2.0

Added

• Interrupt sampler can now export network, nvme, and total interrupts per NUMA
  node

release v2.1.0

Added

• Interrupt sampler to gather system-level telemetry about interrupts

Fixed

• Improved error handling in samplers that read from multiple sources to prevent
  errors reading from earlier sources from preventing the collection from
  sources which are sampled afterwards

release v2.0.0

Changed

• Many metrics have been renamed to improve consistency
• Config format updated to be more flexible in configuring individual samplers
• Moved BPF and perf functionality into each sampler so that samplers focus on
  particular aspects of performance and not method of gathering telemetry
• Runtime is now async and samplers rewritten to use async/await
• Changed the default version of bcc to 0.13.0

Added

• Push-based exposition of metrics to Kafka

release v1.3.0

Added

• Support for bcc 0.11.0, making it the new default version
• Block device telemetry now includes nvme devices and discard ops/bandwidth
• Memcache sampler now logs successful connections

Fixed

• JSON output was improperly formatted in memcache proxy mode

release v1.2.0

Added

• Configuration flag to disable fault tolerance, enabling proper smoke tests of
  sampler initialization in CI
• Network eBPF sampler which provides packet size distribution

Fixed

• Fixes build issue when perf feature is disabled

release v1.1.0

Added

• Container sampler to use within an application container for telemetry
• Allow for per-sampler collection intervals
• Adds a TCP eBPF sampler which provides latencies for establishing active TCP
  connections

Fixed

• Allows memcache sampler to reconnect to the cache instance which helps to make
  the sampler more resilient to transient errors
• Softnet sampler now disabled by default to be consistent with other samplers
• Updates bcc version to pull-in bugfixes
• Fixes an issue where network percentiles may be reported incorrectly if the
  primary NIC has an operstate of unknown

release v1.0.1

Fixed

• Fixes interaction between command line arguments and config file so that
  logging level can be set in the config

release v1.0.0

Initial release