cat-bookmarker/deps/telemetry_poller/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.0.0

This release marks stability of the API. The library now requires Telemetry ~> 1.0.

Fixed

• Fix disabling the default poller via application environment.

Changed

• Drop support for OTP 20.

0.5.1

Added

• Support {:global, atom()} and {:via, module(), term()} names for the poller process.

0.5.0

Added

• system_counts measurement

0.4.1

Changed

• Improve docs
• No longer add a default name to telemetry processes

0.4.0

Telemetry Poller has been rewritten in Erlang so it can be used by the overall Erlang community. Therefore, the Telemetry.Poller module must now be accessed as telemetry_poller. A new process_info measurement has also been added and the vm_measurements and measurements keys have been merged into a single measurements key for simplicity.

Added

• :process_info measurement

Changed

• vm_measurements and measurements have been merged into measurements
• Telemetry.Poller has been rewritten to telemetry_poller

0.3.0

This release marks the upgrade to Telemetry 0.4.0. This means that Poller measurements can emit a map of values now instead of a single one, making it less "noisy" when it comes to number of emitted events.

All specific memory measurements have been replaced with a single :memory measurement sending all the values that were emitted by old measurements at once.

:run_queue_lengths VM measurement has been removed for now, as we believe that as detailed data as it provided is not necessary to effectively debug the system. :total_run_queue_lengths VM measurement has been changed so that it reports a :total length of run queues, length of :cpu run queues (including dirty CPU run queue), and length of (dirty) :io run queue.

Added

• :memory VM measurement reporting all the data returned by :erlang.memory/0 call.

Changed

• :total_run_queue_lengths VM measurement is reporting a :total, :cpu and :io run queue lengths now. See documentation for more details.

Removed

• :total_memory, :atom_memory, :atom_used_memory, :processes_memory, :processes_used_memory, :binary_memory, :ets_memory, :code_memory and :system_memory VM measurements have been removed. Please use the :memory measurement now instead.

0.2.0

Added

• Added :total_run_queue_lengths and :run_queue_lengths memory measurements;

Changed

• :total_run_queue_lengths is now included in the set of default VM measurements;
• A default Poller process, with a default set of VM measurements, is started when :telemetry_poller application starts (configurable via :telemetry.poller, :default application environment).
• VM measurements are now provided to Poller's :vm_measurements option. Passing atom :default to this option makes the Poller use a default set of VM measurements;
• Telemetry has been upgraded to version 0.3, meaning that VM measurements now use this version to emit the events.

Removed

• Telemetry.Poller.vm_measurements/0 function has been removed in favor of :vm_measurements option.

Fixed

• Fixed the type definition of Telemetry.Poller.measurement/0 type - no Dialyzer warnings are emitted when running it on the project.

0.1.0

Added

• The Poller process periodically invoking registered functions which emit Telemetry events. It supports VM memory measurements and custom measurements provided as MFAs.