mozilla

Changelog

0.7.2 (2014-10-01)

Bug Handling

  • Fail more gracefully if user doesn’t specify a scheme in the server URL for the ElasticSearchOutput (#1069).
  • Correctly compute http timeout interval for ElasticSearchOutput when using HTTP indexing.
  • Fixed issue w/ inaccurate payload sizes in heka-flood.
  • Allow severity to be modified by the MessageTemplate logic for use in ScribbleDecoder (#1084).
  • Render pack diagnostic idle time in seconds (as specified) instead of nanoseconds.
  • Prevent orphaned matchers from remaining in the router’s matcher lists in cases where a filter or output registered in one TOML file overrides a filter or output of the same name in an earlier TOML file.

0.7.1 (2014-09-02)

Bug Handling

  • Fixed handling of TcpInput and TcpOutput keep_alive_period default value handling, and added docs (#1054).
  • Fixed OSX lua_sandbox build error.
  • Fixed load ordering of nested MultiDecoders (#1045).

0.7.0 (2014-08-27)

Backwards Incompatibilities

  • Switched to using fork of gomock, import location changed from code.google.com/p/gomock to github.com/rafrombrc/gomock.
  • Move *GlobalConfigStruct out of pipeline package’s global namespace, it is now stored as an attribute on PipelineConfig. Any code that used to call pipeline.Globals() now must instead access *PipelineConfig.Globals. The WantsPipelineConfig interface has been introduced to give plugins access to the active *PipelineConfig if it’s needed in the ConfigStruct or Init methods (#951).
  • Removed deprecated pipeline.GetHekaConfigDir API call, which has been replaced by PrependBaseDir and PrependShareDir for a few versions now.
  • Removed the regular expression template support from the message matcher (issue #960).
  • Updated the AMQP input / output configuration values to use underscore delimited words for long config options (issue #953).

Bug Handling

  • Fixed the MySQL slow query grammar to handle logs with no newline.
  • Fixed packet tracking idle packs error output formatting.
  • Prevent panics during shutdown when a restarting plugin has been restarted (issue #957).
  • Added support for a Logstreamer symbolically linked log_directory root (issue #741).
  • Fixed lots of race conditions in the tests.
  • Eliminated race condition in use of global AMQPHub in AMQP input / output plugins (#953).

Features

  • Added StatMetric Influx Encoder.
  • Added RstEncoder.
  • Added support for ‘__ignore_root’ tag in add_external_plugin to allow external packages to be added which do not have any .go files in their root directory (issue #955).
  • Switched from using goprotobuf to gogoprotobuf with marshal_all and unmarshal_all extensions for significant performance increase.
  • Added stats graph sandbox filter to make it easier to generate graphs of statsd / graphite metrics (issue #966).
  • Added support for the majority of repository URI formats when cloning external Go packages (issue #937).
  • Added the ability to test for field existence in message matcher (issue #958).
  • Added support to ESJSonEncoder and ESLogstashV0Encoder to properly encode field arrays.
  • Added a filter to monitor all process message failures (issue #948).
  • Added UdpOutput.
  • Added IrcOutput.
  • Added support for filter and output plugins to optionally exit without causing Heka to shutdown via config option.
  • Added support for custom HTTP Headers in HttpListenInput and DashboardOutput.

0.6.1 (2014-08-27)

Bug Handling

  • CarbonOutput using UDP transport now uses multiple packets to send stats data to Carbon server when output would be longer than the 64KiB max size for UDP packets (issue #1035).
  • StatsdInput now trims all whitespace around incoming stat names instead of just trailing newlines (issue #1011).
  • Fixed silent failures in ElasticSearchOutput bulk indexing operations.
  • Fixed permanent loss of HTTP connection in certain cases when ElasticSearch has been restarted (issue #1008).
  • Fixed default sandbox script type when loading dynamic plugins.

0.6.0 (2014-07-09)

Backwards Incompatibilities

  • Go 1.3 now required for building.
  • Changed handling of message stream framing. Before stream framing was presumed to always be required when encoding with protocol buffers, and not required when using other encodings. Now all outputs support an optional use_framing setting that will determine whether or not framing will be applied when using the OutputRunner’s Encode method (issue #922).
  • All files in a config directory that do not end in ”.toml” will now be ignored and not loaded as a part of the Heka configuration (issue #750).
  • Removed the PayloadJsonDecoder which is replaced by the Lua sandbox cjson module (issue 826).
  • Removed LogfileInput and LogfileDirectoryManagerInput which were replaced by LogstreamerInput in 0.5.0 (issue 914).
  • MultiDecoder no longer sets prepends name of the decoder instance to the message type value for every message. This was impacting performance, is almost never what is needed, and is almost always overwritten by the nested subdecoders anyway.
  • MultiDecoder now has a subs option that refers to other top level decoder config definitions, instead of nested sub-configs and a separate order option specifying the order. This makes for less typing and the ability to reuse decoder definitions as both standalone decoders and across multiple MultiDecoders (issue #485).
  • ElasticSearchOutput now uses an Encoder plugin instead of MessageFormatters. Created ESJsonEncoder, ESLogstashV0Encoder, and ESPayloadEncoder (implemented as a SandboxEncoder in es_payload.lua) to replicate prior formatter behavior.
  • Changed the Lua sandbox API. inject_message is no longer overloaded, output has been renamed to add_to_payload, and inject_payload has been introduced.
  • Changed TcpOutput, FileOutput, and LogOutput to use Encoder plugins for output formatting instead of bespoke formatting implementations.
  • The rsyslog decoder now further parses the %SYSLOGTAG% variable. The fields.syslogtag no longer exists and is replaced by fields.programname and message.Pid (issue #677).
  • Removed no-longer-used ‘decoder_poolsize’ global config setting.

Bug Handling

  • Fixed the ElasticSearchOutput to always use UTC times in the bulk API header (issue #504).
  • Fixed the SandboxDecoder panic when failing the Decode() after successfully injecting a message (issue #910).
  • StatsdInput no longer spins up a new goroutine for each stat (issue #359).
  • MultiDecoder no longer prevents shutdown if a nested SandboxDecoder crashes during startup (issue #896).
  • MultiDecoder using cascade_strategy = “all” now passes all generated packs to all nested decoders instead of skipping the remainder if an earlier pack in the sequence fails to decode (issue #896).
  • MultiDecoder no longer tries to recycle the original pack, leaving that job to the DecoderRunner as intended (issue #896).
  • Updated SmtpOutput to use a slice instead of a map to generate SMTP headers so the order will remain consistent when using Go 1.3 or later.
  • Use FindProcess instead of syscall.Kill to make the ‘pid_file’ configuration setting work on Windows (issue #807)
  • Fix the SandboxFilter ReportMsg panic on termination/shutdown (issue #816)
  • MultiDecoder with no ‘order’ set now fails on init instead of panicking on first message.
  • Fix panic on SIGUSR1 caused by no reports in a given plugin category (issue #832).
  • Fix file_match config of plugin logstreamer_input (issue #893).
  • StatFilter now correctly handles values from integer or float fields (issue #612).

Features

  • Added general purpose HttpOutput (issue #820).
  • Added message processing stat reporting to the MultiDecoder for each subdecoder and in aggregate (issue #719).
  • Added memory statistics to the Heka report output, for self monitoring.
  • Added a message type configuration option to the rsyslog decoder (issue #907).
  • Added elasticsearch Lua module to generate BulkAPI index JSON (issue #875).
  • Added support for Lua sandbox preservation versioning (issue #701).
  • Added support for unix datagram sockets to the UdpInput using net “unixgram” (issue #790).
  • Add LogstreamInput seekjournal reporting to dashboard output (issue #445).
  • Added a HyperLogLog library to the Lua sandbox using the Redis implementation http://antirez.com/news/75.
  • Added an alert encoder to make the alert messages easier to read.
  • Introduced Encoder plugin type (issue #417).
  • Added a bloom filter to the Lua sandbox and created a unique items filter.
  • Turned the MySQL slow query log examples into a deployed decoder and filter.
  • Added an Nginx error log decoder (issue #785)
  • Added the ability to preserve the webserver log line in message payload (issue #784)
  • Added the optional ‘pid_file’ configuration setting (issue #777).
  • Add anomaly, alert, annotation modules (issue #677)
  • Added ‘sample_denominator’ global config setting to allow tweaking the sample interval when computing timing of certain operations, replacing prior hard-coded DURATION_SAMPLE_DENOMINATOR constant (issue #625).
  • Added an Apache access log decoder based on the Apache ‘LogFormat’ configuration directive.
  • Added BufferedOutput. Extracts the queuing functionality out of TcpOutput.go into a general purpose lib for use in any output module. Callers get messages buffered to disk while another goroutine consumes and forwards data. Any errors encountered can cause the sending goroutine to backoff and resend data.
  • Added http_timeout to elasticsearch output to prevent slow or stale connections from holding up the flow. (issue #769)
  • Add query parameters to the Message as Fields in the HttpListenInput
  • Add QueueTTL option to AMQPInput to allow specifying message expiration.
  • Added optional tls sub-section to AMQPInput and AMQPOutput for configuring AMQPS TLS settings.
  • Add detection and handling of gzipped files to LogstreamerInput (issue #648).
  • Added optional TCP Keep-Alive parameters to TcpInput/TcpOutput plugins.

0.5.2 (2014-05-16)

Bug Handling

  • FileOutput no longer panics when using format = “text” and payload is nil (issue #843).
  • Fix SandboxDecoder pass-through case so decoders that only use write_message and not inject_message will emit messages correctly (issue #844).
  • Fixed TcpInput so it will only override the default delimiter for a RegexpParser if a delimiter is specified in the config.
  • Fix the FileOutput panic when HUP’ed. Modified the CheckWritePermission utility function to use a unique filename for each check. (issue #808)
  • Terminated plugins are now removed from the SandboxManager quota (issue #774).
  • Fixed SIGUSR1 triggered text report to stdout to work with updated heka.all-report JSON data structure (issue #762).
  • MultiDecoder now uses message.GetType() instead of Message.Type so emitted message type will be generated correctly (issue #761).
  • LogstreamerInput no longer causes Heka to fail to start on empty or whitespace-only journal files (issue #755).
  • The cbufd_host_aggregator filter now properly reclaims expired hosts.
  • Pull in a new lua_sandbox to fix JSON encoding of empty strings in the sandbox plugin output() call.
  • Escape regexp meta characters (notably ‘’) to prevent a panic in the LogstreamerInput on Windows

0.5.1 (2014-03-18)

Bug Handling

  • Skip *.bak, *.tmp, *~, and .files in a config dir as a non-breaking band-aid until we require an explicit naming convention in 0.6 (see issue #750).
  • heka-logstreamer command now supports config directories in addition to single config files, just like hekad itself (issue #742).
  • Logstreamer package’s NewLogstreamSet function no longer lowercases the match part names when constructing match translation maps since the PopulateMatchParts method doesn’t actually expect the names to be lowercased.
  • Added support for use of “missing” value in Logstreamer translation maps to allow users to place missing values at the end of the list instead of the beginning (issue #735).

0.5.0 (2014-03-06)

Backwards Incompatibilities

  • ProcessInput no longer supports a separate’name’ config setting, it uses the specified plugin name from the TOML section header like all of the other plugins.
  • Removed Stdout_chan and Stderr_chan from ManagedCmd and CommandChain, client code now has direct access to Stdout_r and Stderr_r io.Reader providers.
  • The PluginHelper interface DecoderRunner prototype has changed (issue #717) to allow for the base name e.g. “ProtobufDecoder” and a full instance name e.g. “MyInput-ProtobufDecoder” of the decoder to be specified. This allows multiple decoders of the same type to show up on the DashboardOutput and sandbox decoder state preservation to work properly. Also the DecoderRunner UUID interface method was removed.
  • FileOutput flushinterval config setting changed to flush_interval to match config naming conventions.
  • SandboxDecoder, SandboxFilter, and SandboxManagerFilter now all use ${SHARE_DIR}/lua_modules as the default module_directory setting. SandboxDecoder and SandboxFilter both now interpret relative paths to lua source code to be relative to ${SHARE_DIR} instead of ${BASE_DIR}.
  • DashboardOutput static_directory setting now defaults to ${SHARE_DIR}/dasher instead of ${BASE_DIR}/dashboard_static.
  • The sandbox preservation data is now stored in the {base_dir}/sandbox_preservation directory instead of with the plugin source. On the initial restart no preserved data will be restored unless it is manually moved to this directory first. (issue #626)
  • The Heka utilities (flood, sbmgr, sbmgrload, inject) have been namespaced with a heka- prefix for their respective binaries. I.e. Flood has been renamed heka-flood., etc.
  • MultiDecoder now gets its name from the TOML section name like the rest of the plugins, instead of a separate ‘name’ config option.
  • Major reorganization of the pipeline package, moving the implementation of most plugins to sub-packages of a separate plugins package.
  • Removed the wrapper ‘table’ element from the JSON serialization (issue #525) i.e., {“table”:{“value”:1}} is now simply {“value”:1}. The change also removes the special ‘_name’ metadata arribute; the top level _name element should be created in the Lua structure if it is required.
  • In the process of removing the core sandbox code from Heka (issue #464), the sandbox was streamlined to only load the base library by default. All sandbox plugins must now explictly load additional libraries with the require function.
  • Removed DecoderSet method from PluginHelper interface (and DecoderSet abstraction entirely) and replaced it with Decoder and DecoderRunner methods that return a Decoder or a DecoderRunner by name.
  • Changed Decoder interface to support one input pack generating multiple output packs.

Bug Handling

  • Network parsers now return all records available in the parse buffer (issue #732).
  • TcpInput now stops a given connection’s decoder when the connection is closed, preventing memory pooling (issue #713).
  • StatsdInput now doesn’t fail with multiple stats in a single UDP packet.
  • Set default StatAccumInput stat namespace prefix values even when legacy_namespaces is set to false (issue #630).
  • Fixed cpuprof file from being closed right after opening so no data was being logged.
  • Fixed LogfileInput so it will only override the default delimiter for a RegexpParser if a delimiter is specified in the config.
  • PluginWrapper will now check for the WantsName interface when creating a plugin, and will set the plugin’s name if appropriate.
  • SandboxDecoder now explicitly logs a fatal error before triggering shutdown to ensure error message is actually emitted.
  • Message severity now defaults to the highest RFC 5424 value (i.e. 7) implies low severity, rather than zero, which implies emergency, (issue #518).
  • ‘flood’ command now outputs every send error (even ‘connection refused’), and always increments ‘messages sent’ count even when there is a sending error (so setting ‘num_messages’ still works even if hekad stops responding, etc.).
  • stat_accum_input will not fail when flushing a timer where the percentile is equal to the min value.

Features

  • Added ProcessDirectoryInput.
  • InputRunners now support being specified as ‘transient’, meaning their lifespan should be managed by the code that creates the InputRunner and not Heka’s pipeline code.
  • HttpInput: now supports configuring the HTTP method, HTTP headers and HTTP Basic Authentication
  • TLS Listeners can specify a ‘client_cafile’ which limits the CAs that a client cert can be chained to. This provides a mechanism for TLS Client AUTH.
  • TLS Senders can specify a ‘root_cafile’ which limits the CAs that a server cert can be chained to. This provides a mechanims for TLS Server AUTH.
  • Added StopDecoderRunner function to PluginHelper API so inputs can manually decommission decoders when they’re no longer being used.
  • The SandboxManagerFilter can now control the sandbox usage limits (issue #95)
  • Added support for send_nsca to NagiosOutput as an alternative to direct http submission; also a way to explicitely specify service_description and host to match Nagios config
  • Added configurable network types to TcpInput “tcp”, “tcp4”, “tcp6”, “unix” and
“unixpacket” (issue #539)
  • Added configurable network types to UdpInput “udp”, “udp4”, “udp6” (issue #539)
  • Added flush_count config setting to FileOutput to complement existing flush_interval. Also added flush_operator setting which can be “AND” or “OR” to specify how flush_count and flush_interval should be combined.
  • Introduced share_dir global config setting, which specifies where Heka’s read only resources should live. Defaults to /usr/share/heka. Also added pipeline.PrependShareDir() function for use within plugin initialization code.
  • Added an rsyslog decoder based on the rsyslog string configuration template (issue #432).
  • Added an Nginx access log decoder based on the Nginx ‘log_format’ configuration directive.
  • heka-cat: A command-line utility for counting, viewing, filtering, and extracting Heka protobuf logs.
  • TcpOutput has been redesigned to handle unavailable endpoints and dropped connections without data loss (issue #355).
  • CarbonOutput now supports submitting messages via UDP, persistent TCP connection.
  • Added Logstreamer Input [LogstreamerInput]: An input that replaces the Logfile and Logfile Directory Inputs and supports sequential reading of logstreams that span sets of ordered logfiles (issue #372).
  • TcpInput, TcpOutput, and flood client now all support TLS encrypted TCP connections using Go’s crypto/tls package.
  • Added Http Listen Input [HttpListenInput]: An input that listens for HTTP requests on the specified address. If a decoder is not specified the input generates a message with the HTML request body as the payload. This input is especially useful for consuming and processing webhooks. (Issue #431)
  • Added support for local external packages (issue #393)
  • Inject: A command-line utility for injecting arbitrary messages into a Heka pipeline.
  • Added Go ScribbleDecoder for efficient setting of purely static message field values.
  • Exposed write_message API function to Lua decoders to allow mutation of existing decoded message (issue #577).
  • HttpInput: Added urls (array) option.
  • HttpInput: Failed and successful HTTP GET actions produce messages of Type “heka.httpinput.data”, Logger = Request URL, and severity appropriate to HTTP status 200 or not. I.e. Connections responding with a status of 200 produce a message with Severity 6, non-200 statuses Severity 1. Failure to connect produces a message with Severity 1 and Type “heka.httpinput.error”.
  • HttpInput: Fields[ResponseTime] populates with time duration in seconds for HTTP GET of URL, Fields[Status] with HTTP Status, Fields[Protocol] with HTTP protocol and version, Fields[StatusCode] with HTTP Response Status Code for successful HTTP GETs. The Circular Buffer Graph Annotation (Alerts) (http://hekad.readthedocs.org/en/latest/sandbox/graph_annotation.html) plugin is compatible with the HttpInput plugin.
  • HttpInput: Added success_severity and error_severity options for GET actions.
  • HttpInput: Messages now set Logger, UUID, and Timestamp.
  • Added log_errors option to PayloadregexDecoder to allow skipping invalid payloads.
  • Added “id” flag to elasticsearch output (issue #386).
  • Added SmtpOutput (issue #472)
  • Added preserve_data option to SandboxDecoder (issue #668).
  • Added delete_idle_stats to StatAccumInput.
  • Added sum and count_ps metrics to timers in stat_accum_input.

0.4.2 (2013-12-02)

Bug Handling

0.4.1 (2013-11-05)

Bug Handling

  • Updated Mozilla Sphinx theme submodule reference and configuration paths to work around bug in ReadTheDocs rendering (see https://github.com/rtfd/readthedocs.org/issues/529).
  • Changed default DashboardOutput.StaticDirectory value to /usr/share/heka/dasher, to match where the packages put the files.

Features

  • add require_all_fields flag to PayloadJsonDecoder (issue #528)

0.4.0 (2013-10-30)

Backwards Incompatibilities

  • DashboardOutput now requires a static_directory setting to specify where the Heka dashboard source code can be found.
  • AMQPInput now only supports a single decoder to be specified (issue #414).
  • UdpInput configuration now requires a parser_type and decoder to be specified (issue #411).
  • TcpInput configuration now requires a parser_type and decoder to be specified (issue #165).
  • Removed the LogfileInput decoders array configuration in favor of a single decoder (issue #308).
  • SandboxManagerFilter now auto-generates a default working directory based on the plugin name, in the ${BASE_DIR}/sbxmgrs folder.
  • LogfileInput seek journals now support a boolean use_seek_journal config flag, and only the name of the journal file is now settable via seek_journal_name, replacing the seekjournal option which specified the full path.
  • Build is now entirely cmake based and lives directly in the heka repository, replacing the separate primarily gnu make driven separate heka-build repo.
  • Core Heka plugins now default to writing data to /var/cache instead of /var/run since /var/run is usually deleted on server restart.
  • StatAccumInput now defaults to emitting stats data in the payload instead of in the message fields.
  • Renamed LoglineDecoder to PayloadRegexDecoder.

Bug Handling

  • Added check for nil RemoteAddr value since UDP connections won’t have one (issue #462).
  • Statsd messages are now parsed manually (issue #44).
  • Added mDRunner so MultiDecoder will work with sub-decoders that implement the WantsDecoderRunner interface.
  • Removed all code that attempted to catch and recover from panics in called plugin code, since a) the recovery often left Heka in an undefined, broken state b) the safety was a lie, any panic in a separate goroutine would not be caught and c) panic traceback actually makes it easier to debug.
  • WhisperOutput and CarbonOutput no longer require stats to use the stats namespace prefix.
  • LogfileInput now truncates and overwrites the seek journals instead of appending.
  • protoc now an optional dependency for the build, only required if the protobuf definition is actually changed.
  • MessageTemplate field name interpolation was only supporting alphabetic characters for field names, now supports all “word” characters (i.e. alphanumeric plus underscore).
  • ElasticSearchOutput now always sends timestamps in expected UTC time zone format.
  • Fixed a CarbonOutput memory / socket leak.
  • Fixed panic caused by an invalid config file path.

Features

  • Added a sandbox message field iterator (issue #460)
  • Added ProcessInput. (issue #406)
  • Replaced DashboardOutput UI with new Backbone.js-based dasher interface. (issue #378)
  • Add delta output to circular buffers. (issue #467)
  • Added json decoding to the Lua sandbox (issue #463). If you have an old build directory you will have to run make clean to pick up the new patch.
  • Added a ‘config’ variable section to the Sandbox decoder/filter plugin. (issue #444)
  • Added StatsToFieldsDecoder that will convert a message with statsd formatted string in the payload to one that also has the data available as message fields, in the same format that would be generated by a StatAccumInput with emit_in_fields set to true.
  • MultiDecoder now supports cascade_strategy config options of first-wins and all, defaults to first-wins.
  • Added stream parsing to UdpInput. (issue #411)
  • Added stream parsing to TcpInput. (issue #165)
  • Added SandboxDecoder. (issue #370)
  • Support Heka protobuf message data in the LogfileInput plugin. (issue #261)
  • Added “payload” format option to ElasticSearchOutput to pass message payload through to ES unchanged.
  • Allow LogfileInput to use configurable delimiters including regexp (issue #263) This includes a backwards incompatible change for the journal file, old journals will not be honored and the new journal will overwrite it.
  • Allow add_external_plugin to specify sub-packages. (issue #384)
  • Added base_dir global (i.e. [hekad] section) config option to specify a single location Heka plugins should use to persist data to the file system.
  • The hekad commands config flag now supports use of a config directory in addition to a single config file. If a directory path is specified, every file in the directory will be parsed and they will all be merged to a single running configuration.
  • Added LogfileDirectoryManagerInput (issue #344).
  • LPEG library added to Lua sandbox (issue #144).
  • ElasticSearchOutput now supports logstash_v0 output format that is modeled after the original Logstash ElasticSearch message schema.
  • Added PayloadJsonDecoder that can extract information from JSON text in a message payload during decoding.
  • Make index type_name option for ElasticSearchOutput definable from Field value (issue #356)

0.3.0 (2013-07-16)

  • Fixed default (and only supported, for now) sample rate in the stats generated by the StatFilter.
  • Fixes to the platform specific build constraints around signal handling.
  • Added HttpInput that can make HTTP requests to a remote server, placing the response body into a message payload.
  • Filters and outputs now require a specified message_matcher or they will raise an error applying the configuration.
  • ticker_interval now exposed as a global config option for inputs, as well as outputs and filters.
  • Overhaul of StatAccumInput implementation to fix bugs and allow for better handling of output format options.
  • LoglineDecoder will now default to the current day, month, and year when parsing text that contains bare timestamps w/ no date information.
  • Added permission checks to FileOutput and WhisperOutput plugins to fail gracefully when they’ve been asked to write to a location where they do not have write permission.
  • Fixed folder creation permission bugs and allow configurable folder permission settings in FileOutput and WhisperOutput.
  • hekad now emits help message if started w/ no command line options.
  • Consistently use underscore_separated_words for plugin TOML configuration options.
  • Use strings instead of integers to specify octal permission values in the config, since TOML doesn’t support octal integer values.
  • LoglineDecoder config now allows specification of a time zone in case the parsed text contains non-UTC timestamps that don’t include embedded time zone information.
  • Removed match capture group support from the router’s message matching functionality, since this is better done in the decoder layer where the back-pressure won’t slow down all message delivery. This gets rid of the PipelineCapture object altogether, so now filter and output plugins deal w/ PipelinePacks directly.
  • Added ElasticSearch output.
  • Lua filters can now emit tables, which will be serialized to JSON and put in an injected message payload.
  • Custom dashboard javascript now generated by Heka instead of hosted remotely.
  • Improvements to flood, a Heka protocol load test client.
  • Config loading now fails if a config section specifies an unrecognized configuration option.
  • StatAccumulator now supports stat metric messages with stats data embedded in message fields as well as message payload.
  • Added support for plugin code to provide message_matcher and ticker_interval default values.
  • Reimplemented StatMonitor as StatAccumInput, providing a StatAccumulator interface.
  • SIGUSR1 signals now generate Heka report on stdout instead of sending a message so it can be viewed even when message delivery is hosed.
  • Added explicit Close() calls to whisperdb files in WhisperOutput.
  • Redesigned message field metadata to use string specifiers instead of an enum.
  • Lua filters can now emit multiple named outputs to the Heka dashboard.
  • LogfileInput now supports just one file per input.
  • Removed race conditions exposed by Go’s race detector.
  • Improved self monitoring / dashboard output.
  • Improved shutdown message flushing.
  • Added Nagios output.
  • Added support for LogfileInput to resume parsing where it left off.
  • Added AMQP input and output plugins.
  • Improved control over sandbox filter message injection restrictions.
  • Added support for restartable plugins.
  • Moved regular expression and capture group parsing out of the filter layer (i.e. in the TransformFilter) and into the decoder layer (i.e. LoglineDecoder) to prevent back pressure from impacting the entire router.

0.2.0 (2013-06-26)

  • Fix stat name regex to capture ”.” characters in the name.

0.2.0rc2 (2013-05-23)

  • Fix Lua sandbox C code to work on 32 bit systems.
  • Trivial release documentation ReST formatting fix.

0.2.0rc1 (2013-05-21)

  • Use non-https links in docs to prevent bad rendering due to mixed http/https content.
  • A number of documentation tweaks and updates.
  • Static linking of cgo wrapped Lua environment.
  • Added LICENSE.txt and CHANGES.txt for better project hygiene.
  • Changed default interval for log file reading from 1ms to 500ms so we don’t churn the machine in default configuration.
  • Moved StatPacket channel setup into StatsdInput’s Init method (from Run) to avoid race conditions.
  • Added support for mingw-based Windows build.
  • Perform message injection in a goroutine to prevent blocking the router when the plugin that is doing the injection has a full in channel.
  • Added required pack recycling to TcpOutput.

0.2.0b1 (2013-04-30)

  • Initial public release