Changelog History
Page 3
-
v0.4.5 Changes
February 25, 2014๐ FEATURES:
- New
tags
command is available to dynamically update tags without reloading the agent. Thanks to @ryanuber. [GH-126]
๐ IMPROVEMENTS:
Upstart receipe logs output thanks to @breerly [GH-128]
members
can filter on any tag thanks to @hmrm [GH-124]Added vagrant demo to make a simple cluster
members
now columnizes the output thanks to @ryanuber [GH-138]Agent passes its own environment variables through thanks to @mcroydon [GH-142]
-iface
flag can be used to bind to interfaces [GH-145]
๐ BUG FIXES:
-config-dir would cause protocol to be set to 0 if there are no configuration files in the directory [GH-129]
Event handlers can filter on 'member-update'
User event handler appends new line, this was being omitted
- New
-
v0.4.1 Changes
February 03, 2014๐ IMPROVEMENTS:
- mDNS service uses the advertise address instead of bind address
-
v0.4.0 Changes
January 31, 2014๐ FEATURES:
Static
role
has been replaced with dynamic tags. Each agent can have multiple key/value tags associated using-tag
. Tags can be updated using a SIGHUP and are advertised to the cluster, causing themember-update
event to be triggered. [GH-111] [GH-98]Serf can automatically discover peers uing mDNS when provided the
-discover
flag. In network environments supporting multicast, no explicit join is needed to find peers. [GH-53]Serf collects telemetry information and simple runtime profiling. Stats can be dumped to stderr by sending a
USR1
signal to Serf. Windows users must use theBREAK
signal instead. [GH-103]advertise
flag can be used to set an advertise address different from the bind address. Used for NAT traversal. Thanks to @benagricola [GH-93]members
command now takes-format
flag to specify either text or JSON output. Fixed by @ryanuber [GH-97]
๐ IMPROVEMENTS:
User payload always appends a newline when invoking a shell script
Severity of "Potential blocking operation" reduced to debug to prevent spurious messages on slow or busy machines.
๐ BUG FIXES:
If an agent is restarted with the same bind address but new name, it will not respond to the old name, causing the old name to enter the
failed
state, instead of having duplicate entries in thealive
state.leave_on_interrupt
set to false when not specified, if any config file is provided. This flag is deprecated forskip_leave_on_interrupt
instead. [GH-94]
MISC:
-role
configuration has been deprecated in favor of-tag role=foo
. The flag is still supported but will generate warnings.Support for protocol version 0 (Serf 0.1) has been removed. Serf 0.4 cannot join a cluster that has members running version 0.1.
-
v0.3.0 Changes
December 05, 2013๐ 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
๐ 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 withstart_join
monitor
works even if the client is behind a NAT- Serf generates warning if binding to public IP without encryption
๐ 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]
-
v0.2.1 Changes
November 06, 2013๐ BUG FIXES:
- Member role and address not updated on re-join [GH-58]
-
v0.2.0 Changes
November 01, 2013๐ 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 onserf agent
can be used to join a cluster when starting an agent. [GH-42]
๐ 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]
๐ 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]
-
v0.1.1 Changes
October 23, 2013๐ 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.
-
v0.1.0 Changes
October 23, 2013- ๐ Initial release