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CHANGELOG.md

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0.3.1 (Unreleased)

FEATURES:

  • advertise flag can be used to set a advertise address different from the bind address. Used for NAT traversal. Thanks to @benagricola [GH-93]

IMPROVEMENTS:

  • User payload always appends a newline when invoking a shell script

BUG FIXES:

  • leave_on_interrupt set to false when not specified, if any config file is provided. This flag is deprecated for skip_leave_on_interrupt instead. [GH-94]

0.3.0 (December 5, 2013)

FEATURES:

  • Dynamic port support, cluster wide consistent config not necessary
  • Snapshots to automaticaly rejoin cluster after failure and prevent replays [GH-84] [GH-71]
  • Adding profile config to agent, to support WAN, LAN, and Local modes
  • MsgPack over TCP RPC protocol which can be used to control Serf, send events, and receive events with low latency.
  • New leave CLI command and RPC endpoint to control graceful leaves
  • Signal handling is controlable, graceful leave behavior on SIGINT/SIGTERM can be specified
  • SIGHUP can be used to reload configuration

IMPROVEMENTS:

  • Event handler provides lamport time of user events via SERF_USER_LTIME [GH-68]
  • Memberlist encryption overhead has been reduced
  • Filter output of members using regular expressions on role and status
  • replay_on_join parameter to control replay with start_join
  • monitor works even if the client is behind a NAT
  • Serf generates warning if binding to public IP without encryption

BUG FIXES:

  • Prevent unbounded transmit queues [GH-78]
  • IPv6 addresses can be bound to [GH-72]
  • Serf join won't hang on a slow/dead node [GH-70]
  • Serf Leave won't block Shutdown [GH-1]

0.2.1 (November 6, 2013)

BUG FIXES:

  • Member role and address not updated on re-join [GH-58]

0.2.0 (November 1, 2013)

FEATURES:

  • Protocol versioning features so that upgrades can be done safely. See the website on upgrading Serf for more info.
  • Can now configure Serf with files or directories of files by specifying the -config-file and/or -config-dir flags to the agent.
  • New command serf force-leave can be used to force a "failed" node to the "left" state.
  • Serf now supports message encryption and verification so that it can be used on untrusted networks [GH-25]
  • The -join flag on serf agent can be used to join a cluster when starting an agent. [GH-42]

IMPROVEMENTS:

  • Random staggering of periodic routines to avoid cluster-wide synchronization
  • Push/Pull timer automatically slows down as cluster grows to avoid congestion
  • Messages are compressed to reduce bandwidth utilization
  • serf members now provides node roles in output
  • Joining a cluster will no longer replay all the old events by default, but it can using the -replay flag.
  • User events are coalesced by default, meaning duplicate events (by name) within a short period of time are merged. [GH-8]

BUG FIXES:

  • Event handlers work on Windows now by executing commands through cmd /C [GH-37]
  • Nodes that previously left and rejoin won't get stuck in 'leaving' state. [GH-18]
  • Fixing alignment issues on i386 for atomic operations [GH-20]
  • "trace" log level works [GH-31]

0.1.1 (October 23, 2013)

BUG FIXES:

  • Default node name is outputted when "serf agent" is called with no args.
  • Remove node from reap list after join so a fast re-join doesn't lose the member.

0.1.0 (October 23, 2013)

  • Initial release