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Changes

[Fix] - bugfix

[Breaking] - breaking change

[Feature] - new feature

[Improvement] - non-breaking improvement

[Code] - code quality related change that shouldn't make any significant difference for end-user

Changes

1.0.0-rc.2 (WIP)

  • Fix panic in case no response was received
  • Add "auto" protocol. In that mode carbonapi will do it's best to guess what to use.
  • Add "msgpack" protocol support. This protocol is used by graphite-web and metrictank.
  • Fix format for protov2
  • Fix race condition while merging requests (@gunnihinn)
  • Correctly batch metric fetching in protocol v2 (@gunnihinn)
  • Fix race condition in zipper's query cache (@Civil)
  • Update vendored dependencies
  • Fix decode for nil messages in msgpack

1.0.0-rc.1

  • Fix timeout sanitization logic
  • Fix empty responses for protocol/v3
  • Update vendored deps
  • Add option to configure internal route cache check interval
  • Fix PathExpression handling for protocol/v2
  • Update protocol v3 to support passing PathExpression to backend

1.0.0-beta.2 It's not recommended to switch to this release in production, until it's marked as stable

  • Fix incorrect error handling in Find requests

1.0.0-beta.1 It's not recommended to switch to this release in production, until it's marked as stable

  • Migrate config parsing to viper. This should give consistent expreience with carbonapi

1.0.0-alpha.4 It's not recommended to switch to this release until it's marked as stable

  • [Code] Convert timestamps to int64

1.0.0-alpha.3 It's not recommended to switch to this release until it's marked as stable

  • [Code] Convert timestamps back to uint32

1.0.0-alpha.2 It's not recommended to switch to this release until it's marked as stable

  • [Code] Convert timestamps to be int32 (was uint32)

1.0.0-alpha.1 It's not recommended to switch to this release until it's marked as stable

  • [Improvement] Major rework of load balancing logic
  • [Improvement] Support for new protobuf-based protocol that allow to pass metadata in the responses.
  • [Improvement] CarbonZipper now supports maxGlobs logic. It now will do it's best to split request into even parts of maxGlobs metrics each. Also maxGlobs=0 means "unlimited"

0.74

  • [Fix] Add a workaround for /info handler for zipper over zipper.
  • [Fix] Deduplicate servers in pathCache (thx. to @korsevick)
  • [Code] Refine logging
  • [Code] Improve error handling

0.73.2

  • [Code] Remove carbonapi cross-dependency by moving context handling code to util

0.73

  • [Breaking] [protobuf go-api] Protobuf protocol itself haven't changed, this only affects people who import carbonzipperpb package directly from this repo. Library now declares most of its structures as non-nullable. This changes API of carbonzipperpb and pb3, now they contain less pointers. That should reduce GC pressure a little bit. Sholdn't affect people who use it over the network.
  • [Improvement] Make connect timeout configurable.
  • [Improvement] Make keep alive interval configurable

0.72

  • [Fix] Fix /info handler (bug was introduced after splitting zipper into several packages)

0.71

  • [Fix] carbonsearch was not properly configured (bug introduced after splitting zipper into several packages)

0.70

  • [Breaking] Logging migrated to zap (structured logging). Log format changed significantly. Old command line options removed. Please consult example.conf for a new config options and explanations
  • [Breaking] Change config format from json to yaml. Also we've changed config structure and command line options. Please refer to example.conf for decent example of new format
  • [Improvement] Add context support. Also log context from carbonapi
  • [Improvement] Use dep as a vendoring tool
  • [Improvement] Add a Makefile that will hide some magic from user
  • [Improvement] graphite-web 1.0 support
  • [Fix] Fix incompatibility between carbonzipper and older versions of carbonserver/go-carbon (protobuf2-only)
  • [Code] Split carbonzipper into several packages

Notes on upgrading:

Even though there are several changes that's marked as breaking, it only breaks local config parsing and changes logging format. Please note that on high-load environments access log can be huge.

0.63

  • [Fix] carbonsearch query cache was never cleared

0.62

  • [Fix] Fix carbonsearch queries with recent carbonapi version
  • [Fix] Fix pathCache to handle render requests with globs.
  • [Feature] Add cache for carbonsearch results

0.61

  • [Fix] Fix rewrite for internal queries, because of an error some queries were sent as protobuf not as protobuf3
  • [Code] gofmt the code!

0.60

  • [Breaking] Carbonzipper backend protocol changed to protobuf3. Though output for /render, /info /find can be both (format=protobuf3 for protobuf3, format=protobuf for protobuf2).

0.50

  • See commit log.