6.0.0-alpha

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http://skywalking.apache.org/downloads/

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SkyWalking 6 is totally new milestone for the project. At this point, we are not just a distributing
tracing system with analysis and visualization capabilities. We are an Observability Analysis Platform(OAP).

The core and most important features in v6 are

1. Support to collect telemetry data from different sources, such as multiple language agents and service mesh.
2. Extensible stream analysis core. Make SQL and cache analysis available in core level, although haven't
   provided in this release.
3. Provide Observability Analysis Language(OAL) to make analysis metric customization available.
4. New GraphQL query protocol. Not binding with UI now.
5. UI topology is better now.
6. New alarm core provided. In alpha, only on service related metric.

Issues and Pull requests

5.0.0-GA

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http://skywalking.apache.org/downloads/

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Please follow build document, if you want to build source codes by yourself.

Agent Changes

• Add several package names ignore in agent settings. Classes in these packages would be enhanced, even plugin declared.
• Support Undertow 2.x plugin.
• Fix wrong class names of Motan plugin, not a feature related issue, just naming.

Collector Changes

• Make buffer file handler close more safety.
• Fix NPE in AlarmService

Documents

• Fix compiling doc link.
• Update new live demo address.

Issues and Pull requests

5.0.0-RC2

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http://skywalking.apache.org/downloads/

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Don't download source codes from this page.
Please follow build document, if you want to build source codes by yourself.

Agent Changes

• Support ActiveMQ 5.x
• Support RuntimeContext used out of TracingContext.
• Support Oracle ojdbc8 Plugin.
• Support ElasticSearch client transport 5.2-5.6 Plugin
• Support using agent.config with given path through system properties.
• Add a new way to transmit the Request and Response, to avoid bugs in Hytrix scenarios.
• Fix HTTPComponent client v4 operation name is empty.
• Fix 2 possible NPEs in Spring plugin.
• Fix a possible span leak in SpringMVC plugin.
• Fix NPE in Spring callback plugin.

Collector Changes

• Add GZip support for Zipkin receiver.
• Add new component IDs for nodejs.
• Fix Zipkin span receiver may miss data in request.
• Optimize codes in heatmap calculation. Reduce unnecessary divide.
• Fix NPE in Alarm content generation.
• Fix the precision lost in ServiceNameService#startTimeMillis.
• Fix GC count is 0.
• Fix topology breaks when RPC client uses the async thread call.

UI Changes

• Fix UI port can't be set by startup script in Windows.
• Fix Topology self link error.
• Fix stack color mismatch label color in gc time chart.

Documents

• Add users list.
• Fix several document typo.
• Sync the Chinese documents.
• Add OpenAPM badge.
• Add icon/font documents to NOTICE files.

Issues and Pull requests

5.0.0-beta2

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UI -> Collector GraphQL query protocol

• Add order and status in trace query.

Agent Changes

• Add SOFA plugin.
• Add witness class for Kafka plugin.
• Add RuntimeContext in Context.
• Fix RuntimeContext fail in Tomcat plugin.
• Fix incompatible for getPropertyDescriptors in Spring core.
• Fix spymemcached plugin bug.
• Fix database URL parser bug.
• Fix StringIndexOutOfBoundsException when mysql jdbc url without databaseName。
• Fix duplicate slash in Spring MVC plugin bug.
• Fix namespace bug.
• Fix NPE in Okhttp plugin when connect failed.
• FIx MalformedURLException in httpClientComponent plugin.
• Remove unused dependencies in Dubbo plugin.
• Remove gRPC timeout to avoid out of memory leak.
• Rewrite Async http client plugin.
• [Incubating] Add trace custom ignore optional plugin.

Collector Changes

• Topology query optimization for more than 100 apps.
• Error rate alarm is not triggered.
• Tolerate unsupported segments.
• Support Integer Array, Long Array, String Array, Double Array in streaming data model.
• Support multiple entry span and multiple service name in one segment durtaion record.
• Use BulkProcessor to control the linear writing of data by multiple threads.
• Determine the log is enabled for the DEBUG level before printing message.
• Add static modifier to Logger.
• Add AspNet component.
• Filter inactive service in query.
• Support to query service based on Application.
• Fix RemoteDataMappingIdNotFoundException
• Exclude component-libaries.xml file in collector-*.jar, make sure it is in /conf only.
• Separate a single TTL in minute to in minute, hour, day, month metric and trace.
• Add order and status in trace query.
• Add folder lock to buffer folder.
• Modify operationName search from match to match_phrase.
• [Incubating] Add Zipkin span receiver. Support analysis Zipkin v1/v2 formats.
• [Incubating] Support sharding-sphere as storage implementor.

UI Changes

• Support login and access control.
• Add new webapp.yml configuration file.
• Modify webapp startup script.
• Link to trace query from Thermodynamic graph
• Add application selector in service view.
• Add order and status in trace query.

Documents

• Add architecture design doc.
• Reformat deploy document.
• Adjust Tomcat deploy document.
• Remove all Apache licenses files in dist release packages.
• Update user cases.
• Update UI licenses.
• Add incubating sections in doc.

Issues and Pull requests

5.0.0-beta

NOTICE: Don't download source codes from this page

Change logs

UI -> Collector GraphQL query protocol

• Replace all tps to throughtput/cpm(calls per min)
• Add getThermodynamic service
• Update version to beta

Agent Changes

• Support TLS.
• Support namespace.
• Support direct link.
• Support token.
• Add across thread toolkit.
• Add new plugin extend machenism to override agent core implementations.
• Fix an agent start up sequence bug.
• Fix wrong gc count.
• Remove system env override.
• Add Spring AOP aspect patch to avoid aop conflicts.

Collector Changes

• Trace query based on timeline.
• Delete JVM aggregation in second.
• Support TLS.
• Support namespace.
• Support token auth.
• Group and aggregate requests based on reponse time and timeline, support Thermodynamic chart query
• Support component librariy setting through yml file for better extendibility.
• Optimize performance.
• Support short column name in ES or other storage implementor.
• Add a new cache module implementor, based on Caffeine.
• Support system property override settings.
• Refactor settings initialization.
• Provide collector instrumentation agent.
• Support .NET core component libraries.
• Fix divide zero in query.
• Fix Data don't remove as expected in ES implementor.
• Add some checks in collector modulization core.
• Add some test cases.

UI Changes

• New trace query UI.
• New Application UI, merge server tab(removed) into applciation as sub page.
• New Topology UI.
• New response time / throughput TopN list.
• Add Thermodynamic chart in overview page.
• Change all tps to cpm(calls per minutes).
• Fix wrong osName in server view.
• Fix wrong startTime in trace view.
• Fix some icons internet requirements.

Documents

• Add TLS document.
• Add namespace document.
• Add direct link document.
• Add token document.
• Add across thread toolkit document.
• Add a FAQ about, Agent or collector version upgrade.
• Sync all English documents to Chinese.

Issues and Pull requests

Download

http://skywalking.apache.org/downloads/

Notice

Please follow build document, if you want to build source codes by yourself.

5.0.0-alpha

NOTICE: Don't download source codes from this page

Change logs

Agent -> Collector protocol

• Remove C++ keywords
• Move Ref into Span from Segment
• Add span type, when register an operation

UI -> Collector GraphQL query protocol

• First version protocol

Agent Changes

• Support gRPC 1.x plugin
• Support kafka 0.11 and 1.x plugin
• Support ServiceComb 0.x plugin
• Support optional plugin mechanism.
• Support Spring 3.x and 4.x bean annotation optional plugin
• Support Apache httpcomponent AsyncClient 4.x plugin
• Provide automatic agent daily tests, and release reports here.
• Refactor Postgresql, Oracle, MySQL plugin for compatible.
• Fix jetty client 9 plugin error
• Fix async APIs of okhttp plugin error
• Fix log config didn't work
• Fix a class loader error in okhttp plugin

Collector Changes

• Support metrics analysis and aggregation for application, application instance and service in minute, hour, day and month.
• Support new GraphQL query protocol
• Support alarm
• Provide a prototype instrument for collector.
• Support node speculate in cluster and application topology. (Provider Node -> Consumer Node) -> (Provider Node -> MQ Server -> Consumer Node)

UI Changes

• New 5.0.0 UI!!!

Issues and Pull requests

Download

http://skywalking.apache.org/downloads/

Notice

Please follow build document, if you want to build source codes by your self.

v3.2.6 (Not Apache release)

Features

• Save instrumented classes in debugging folder, if agent.is_open_debugging_class = true. (PMC)
• Upgrade gRPC 1.8 and netty 4.1.17 (PMC)
• Support Elastic-Job plugin. (@hanahmily)

Bugs

• Collector log4j config file isn't right. (PMC)
• Spring 3.0 and 3.1 plugin compatible issue. (PMC)
• Postgre SQL plugin compatible issue. (PMC)
• MySQL 5.0 plugin compatible issue. (PMC)
• Spring core compatible issue. (PMC)
• Oracle plugin TNSName compatible issue. (PMC)
• Collector fails in cluster mode when nodes run in different version JVMs. (PMC)

v3.2.5 (Not Apache release)

In this version, PMC changes the whole code structure of apm-collector.

Features

• Refactor collector for new modulization core. Now, you can switch or extend the module implementations.(PMC)
• Provide a stream analysis(aggregation) core in collector, based on graph define. This makes contributors and secondary development team easier to extend features.(PMC)
• Provide a protection mechanism in agent. User can set the limit of span amount per segment, default 300. The config key in agent.confg is agent.span_limit_per_segment. (PMC)

# The max amount of spans in a single segment.
# Through this config item, skywalking keep your application memory cost estimated.
# agent.span_limit_per_segment=300

• Support Java8 JVM metrics. (@neeuq)
• Move documents to /docs. WIKI is not updated since this version, and will be closed in some month later.(PMC)

Bugs

• SpringMVC Plugin can't work with Spring AOP.(PMC)

v3.2.4 (Not Apache release)

Welcome new partners: 文尔科技 Nutzam, 天源迪科

Features

• Support SpringMVC 3 annotation plugins.(PMC)
• Make MySQL Connection plugin supporting auto-increasement id.(PMC)
• Support MDC of logback application toolkit.(@zhangkewei)

Bugs

• MySQL driver isn't compatible enough.(PMC)
• Collector with H2 storage layer doesn't work right.(PMC)
• Distruptor queue exits unexpectedly, collector hangs up.(PMC)
• Collector cluster mode fail.(@zhangkewei)
• Duplicate jar file in collector tar.(@chidaodezhongsheng)
• Spring 3 Annotation plugin contains wrong interceptor names, and with a wrong pom.(@lytscu)
• Some UI js issues.(@zhangkewei @zuohl)

News

Welcome new Contributors (in alphabetical order): @chidaodezhongsheng @lytscu @zuohl

v3.2.3 (Not Apache release)

Welcome new partners: Huawei DevCloud, dangdang.com

Features

• COOL FEATURE. Provide new agent package, instead of the uber jar file. This is a complex feature, which is provided in many commercial APM product. Now skywalking has it.(PMC)
• Support multi plugin definitions targeting the same class. (PMC)
• Support framework version identification.(PMC)
• Provide a new JDBC plugins mechanism, and refactor all JDBC plugins, for supporting more JDBC usages.(PMC)
• Provide PostgreSQL plugin.(PMC)
• Remove the literal strings in collector metric tables, reduce the disk/network/memory cost.(PMC)
• Provide standalone mode for collector. Only requirement is JDK 1.8. Of course, this mode prepared for quick-start, preview, demonstration or the lowest hardware requirements.(PMC)
• Support H2 storage in collector.(PMC & @clevertension)
• Provide Spymemcached(Memcached Client) Plugin. (@IluckySi)
• Support more annotations since Spring 4.3. (@clevertension)
• Upgrade byte-buddy to 1.7.6 (@IluckySi)
• Name threads created by agent. All thread names started with SkywalkingAgent-. (@zhangkewei)
• Provide sharding-jdbc 1.5 plugin by Dangdang official team. (@hanahmily)
• Provide XMemcached(Memcached Client) 2.x plugin. (@IluckySi)

Bugs

• Jetty 9 plugin doesn't work. (PMC)
• Lost the segments in UI which have no entry span.(PMC)
• GRPCChannelManager exits unexpectedly caused by IndexOutOfBoundsException. (@zhangkewei)

News

Welcome new Contributors (in alphabetical order): @hanahmily @IluckySi @neeuq