0.19

Primary changes:

• Fix race condition where gauge values could get collected before getting read by the servo observer.
• Updates to rxnetty helper. The DiscoveryClient is now injected and connection pooling is enabled.

A comprehensive list of changes can be found in the commit log: 0.18...v0.19.0

0.18

Primary changes:

• Set client name when building RxNetty client. This is to avoid getting a huge number of metrics with the default naming scheme used by RxNetty.

A comprehensive list of changes can be found in the commit log: 0.17...0.18

0.17

Primary changes:

• Add helper for bucket counters, timers, and distribution summaries to the sandbox.
• Change log level for GC events to debug to reduce noise for users that don't want it by default.

A comprehensive list of changes can be found in the commit log: 0.16...0.17

0.16

Note, 0.15 skipped due to some build snafus. This release does an initial attempt at better integration with other Netflix libraries.

Primary changes:

• Guice module for Netflix plugin, see updated integration docs.
• Pin dependencies to explicit versions rather than using latest.release.
• Switch from ribbon-httpclient to shaded version of rxnetty.
• Configuration settings with bindings to archaius.
• Activity based meters will now expire after a period of no use when using the servo registry.

A comprehensive list of changes can be found in the commit log: 0.14...0.16

0.14.2

Primary changes:

• Guice module for Netflix plugin, see updated integration docs.

A comprehensive list of changes can be found in the commit log: 0.14.1...0.14.2

0.14.1

Primary changes:

• Pin dependencies to explicit versions rather than using latest.release.

A comprehensive list of changes can be found in the commit log: 0.14...0.14.1

0.14

Primary changes:

• Change servo registry to use StepCounter instead of BasicCounter (details).
• Add helper for getting a registered instance of a DoubleDistributionSummary.

A comprehensive list of changes can be found in the commit log: 0.13...0.14

0.13

Primary changes:

• JVM stats for buffers and pools.
• Turn off doclint to allow build to work with java 8 (longer term #27).
• Switch from deprecated calls in ribbon-httpclient to ribbon-transport.
• Added experimental sandbox library for trying things before they are considered stable. Initial experiment is a distribution summary type that takes doubles instead of long.
• Split Netflix integration library to allow it to be used without forcing AutoBindSingleton.
• Fix overflow with totalOfSquares on timers.

A comprehensive list of changes can be found in the commit log: 0.12...0.13

0.12

Primary changes:

• Updated the statistics for timers when using the servo registry to include totalTimeSquared. Precomputing this gives us a convenient way to determine standard deviation across groups on backends that allow aggregation.
• Remove listener methods from Registry interface. For most of the interesting use-cases it was insufficient and a dedicated Registry implementation can do a better job of generating a meaningful stream of events.

A comprehensive list of changes can be found in the commit log: 0.11...0.12

0.11

Primary changes:

• Multiple registries can be used at the same time. Default behavior is all registries in the classpath will be loaded and used.
• Fixes several issues with reporting of GC events:
  • Issue #2, the live data size will now get updated any time there is a reduction in the old gen heap size as well as after a major GC.
  • End time reported to chronos was off by the uptime of the jvm.

A comprehensive list of changes can be found in the commit log: 0.10...0.11