CHANGES

.. Author notes: this file is formatted with restructured text
  (http://docutils.sourceforge.net/docs/user/rst/quickstart.html)
  as it is included in TwitterServer's user's guide.

1.x
-----

1.9.0
~~~~~~

New Features:
-------------
  * Most noticeably, the admin server received a complete UI redesign. All http endpoints are
    now available via a navigation pane. We provide a simple API for service owners to include
    ad-hoc admin pages which will be part of the navigation pane. Note, it is still possible to
    join the admin server’s namespace via the global com.twitter.finagle.http.HttpMuxer.

  * When using the twitter Metrics library, the admin server now scrapes your stats to
    extract a quick summary of how your server is performing. This includes secondly
    success rates for your server and least performant downstreams. We provide a /admin/metrics
    endpoint which can watch stats (at secondly granularity) and extract them via http queries.

  * More recently, Finagle clients and servers began to retain information about their composition.
    This is useful in examining the modules and parameters that comprise a specific implementation.
    We now surface this information in the admin server via /admin/clients/<client_name> and
    /admin/servers/<server_name>

Dependencies:
-------------
  * Remove dependency on mustache for admin server in favor of templating
    via string interpolation. This is more hygienic for web applications
    and frameworks built atop twitter-server.

1.8.0
~~~~~~~

New Features
------------
  * Add the ability to promote objects to old gen before serving
  * Export everything from build.properties at /admin/server_info

Runtime Behavior Changes
------------------------
  * Add merge_base merge_base_commit_date and scm_repository to server_info
  * AdminHttpServer now disables tracing
  * Export gauge on eden allocations
  * Improve heuristic for returning html or not in WebHandler
  * Initial redesign of admin pages

Breaking API Changes:
---------------------
  * Remove ServerInfo class: export /admin/server_info directly from build.properties file

1.7.6
~~~~~~~

twitter-server: Add gauge on eden allocations
twitter-server: Do not trace the admin http server
twitter-server: JvmStats needs to call Allocations.start()
twitter-server: Log severely if a flag is read at the wrong time
twitter-server: Parameterize IndexHandler on a `patterns: Seq[String]`
twitter-server: Proper resource loading in admin pages
twitter-server: Redesign of twitter-server admin page

1.7.3
~~~~~~~

- Add admin endpoint for per-client configuration
- Add trace ID to twitter-server logging
- Create a logging handler for on-the-fly logging updates

1.7.2
~~~~~~~

- release finagle v6.18.0
- release util v6.18.0
- user guide: Add blurb about filtering out stats

1.7.1
~~~~~~~

- Upgrade versions of all dependencies
- Admin dtab handler: display base dtab
- Change productivity stat to cpuTime/wallTime

1.7.0
~~~~~~~

- Bump finagle to 6.16.1-SNAPSHOT
- Bump util to 6.16.1-SNAPSHOT
- Disable admin server stats

1.6.3
~~~~~~~

- Define type for statsReceiver explicitly so that it can be overloaded
- Store gauge references (otherwise only weakly referenced)
- Enforce close grace period for com.twitter.app.App
- upgrade finagle/util to 6.15.0

1.6.2
~~~~~~~

- Add com.twitter.io.Charsets and replace the use of org.jboss.netty.util.CharsetUtil
- Fix twitter-server execution test

1.6.1
~~~~~

- upgrade finagle to 6.13.1
- upgrade util to 6.13.2

1.6.0
~~~~~

- upgrade finagle version to 6.13.0
- Implement application-level shutdown handling in App.
- Bug-fix: Refresh JVM memory snapshots on stats collection Motivation
- Bug-fix: set content-length when responding from TwitterHandler

1.5.1
~~~~~

- update finable to 6.12.1
- update util to 6.12.1

1.5.0
~~~~~

- Add logging to TwitterHandlers
- Report on deadlock conditions in admin/contentions
- Twitter server handler for dumping the current dtab
- TwitterHandler: non-root logger
- update finagle version to 6.12.0
- update util version to 6.12.0

1.4.1
~~~~~
- Upgrade finagle to 6.11.1
- Upgrade util to 6.11.1

1.4.0
~~~~~

- Remove finagle-stats dependency so that alternate stats packages can be used such as ostrich
- Add a hooking mechanism and expose an API to install the Dtab using the hooking mechanism
- Upgrade finagle to 6.10.0
- Upgrade util to 6.10.0

1.3.1
~~~~~

- Upgrade finagle to 6.8.1
- Upgrade util to 6.8.1

1.3.0
~~~~~

- Upgrade finagle to 6.8.0
- Upgrade util to 6.8.0
- Adds a cautious registration to HttpMuxer / adds a default metrics endpoint to twitter-server
- Docs: Pointed out that you need the finagle-stats jar on your classpath
- Sync jackson versions in twitter-server
- Revert ordering of TwitterServer mixins.
- Mix in Closer by default... again.

1.2.0
~~~~~

- Support staged names introduced in Finagle
- Add glog-style log formatting
- Remove finagle-stats as a dependency
- Don't stat admin endpoints

1.1.0
~~~~~

- Add ability to defer /health endpoint registration
- Add new stats for current memory usage.
- Change twitter-server admin http server flag and symbol name
- Enable zipkin
- Make Logging trait more flexible for easy extension
- New scheduler "productivity" stats, dispatches.

1.0.3
~~~~~

- bump finagle to 6.5.2
- bump util to 6.3.8

1.0.2
~~~~~

- bump finagle to 6.5.1
- bump util to 6.3.7

1.0.1
~~~~~

- Initial Release