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Twitter Util v7.0.0 Release Notes

Release Date: 2017-08-15 // over 6 years ago

  • 🆕 New Features

    
* util-core: Added `c.t.util.SlowProbeProxyTimer` for monitoring the duration
  of execution for timer tasks. ``PHAB_ID=D70279``

* util-core: Introduced RootMonitor#set to set custom Monitor to RootMonitor.
  ``PHAB_ID=D70876``

* 🚚 util-jvm: `JvmStats` has been moved here from TwitterServer allowing broader
  access to many metrics including GC, allocations, memory, and more.
  ``PHAB_ID=D80883``

* 👀 util-stats: Introducing Verbosity Levels for StatsReceivers (see docs on `StatsReceiver`
  for more info). ``PHAB_ID=D70112``

* util-tunable: `c.t.u.tunable.Tunable`, `c.t.u.tunable.TunableMap`,
  `c.t.u.tunable.JsonTunableMapper`, and `c.t.u.tunable.ServiceLoadedTunableMap` are now public.
  This allows users to create and use Tunables, a mechanism for accessing dynamically
  configured values. See https://twitter.github.io/finagle/guide/Configuration.html#tunables
  for details on how these can be used in Finagle. ``PHAB_ID=D80751``.

🐛 Bug Fixes
~~~~~~~~~

* util-core: Fix some consistency issues with `c.t.util.ByteReaderImpl`. Advance its
  cursor by the number of bytes consumed via `readBytes(Int)`, not the number specified
  as a method argument. `readString` will now throw an UnderflowException if the number
  of bytes specified exceeds the remaining buffer length instead of silently making due
  with the rest of the buffer's contents. ``PHAB_ID=D78301``

⚙ Runtime Behavior Changes

    • util-core: c.t.util.Closable.sequence now continues processing the Closables should any of their closes result in a failed Future and will return the first failure. Synchronous exceptions are now handled by lifting them into failed Futures. PHAB_ID=D62418

    • 0️⃣ util-events: com.twitter.util.events.sinkEnabled now defaults to false in preparation for removal in an upcoming release. PHAB_ID=D64437

    💥 Breaking API Changes

    
* util-core: ByteWriter has been transformed into a true trait which can now
  be implemented outside of the com.twitter.io package. ``PHAB_ID=D59996``

* 🚚 util-core: The method ByteWriter.owned() has been moved to a sub trait,
  BufByteWriter, to separate the notion of the target buffer representation from the
  writer methods in order to make it easier to target different buffer representations.
  ``PHAB_ID=D61215``

* util-stats: ``PHAB_ID=D59762``

 - `ProxyStatsReceiver.self` is now protected (was public before).
 - `StatsReceiver.repr` is now `def` (was `val` before).

* util-stats: `Counter#add` now takes a `Long` instead of an `Integer` as an argument.
  ``PHAB_ID=D69064``

* util-stats: `StatsReceiver#counter`, `StatsReceiver#stat`, and `StatsReceiver.addGauge`
  now may optionally take `c.t.f.stats.Verbosity` as a first argument. ``PHAB_ID=D70112``


🗄 Deprecations
~~~~~~~~~~~~

* 🚚 util-events: This module is deprecated and will be removed in an upcoming
  release. ``PHAB_ID=D64437``

* util-stats: ``PHAB_ID=D62611``

  - `StatsReceiver.counter0` is deprecated in favour of vararg `StatsReceiver.counter`
  - `StatsReceiver.stat0` is deprecated in favour of vararg `StatsReceiver.stat`