Release Notes

1.8.6

(2022/10/26)

This release ships with a few enhancements and bug fixes.

Furthermore, Sentinel OpenSergo data-source has been beta-available (com.alibaba.csp:sentinel-datasource-opensergo:0.1.0-beta), which enables developers to configure Sentinel rules with OpenSergo fault-tolerance CRD in a unified way (under Kubernetes, with OpenSergo control plane).

Features / Enhancements

Add id field in Rule entity and record ruleId in block log (#2853)

Bug Fixes

Fix Dubbo SPI path bug in Dubbo 3.x adapter (#2822)
Fix the bug that SpiLoader#closeResources may not record the exception when error occurs (#2890)

Dashboard

Improve IP validation in SentinelApiClient and rule controllers

1.8.5

(2022/08/09)

Features / Enhancements

Add adapter for Apache Dubbo 3.x (#2789)
Auto-extract value from ParamFlowArgument when blocked in ParamFlowSlot (#2776)

Dashboard

Refactor IP verify logic in MachineRegistryController to support JDK 17 (#2694)
Fix deprecated Spring config key in application.properties (#2713)

Dependencies

Upgrade fastjson to 1.2.83_noneautotype

1.8.4

(2022/04/12)

Features / Enhancements

Add interceptor SPI for transport command handler (#2587)
Add log level configuration support for common logs (#2514)
Improve AuthorityRuleManager: replace the rule map instead of clear-then-insert when updating rules (#2655)

Bug Fixes

Fix param args missing bug in fireExit of StatisticSlot (#2523)
Fix maxQueueingTimeoutMs checking logic in GatewayRuleManager#isValidRule (#2609)
Fix DynamicSentinelProperty synchronized listener set iterator race-condition problem (#2519)
Use CopyOnWriteArraySet for cluster ConnectionGroup#connectionSet to avoid iterator fast-fail (#2559)

Integrations

Add support for customizing ConfigurableRequestItemParser for Spring Cloud Gateway and Zuul adapter (#2542)
Use unified entrance context name by default in Spring WebFlux adapter (#2610)

Dashboard

Fix incorrect alert message for intervalMs validation in circuit breaker rule dialog (#2483)
Fix the bug that removing token servers may fail when there are multiple servers with the same IP (#2591)

Dependencies

Update Spring Boot starter to 2.5.12 for Sentinel dashboard
Upgrade nacos-client to 1.4.2 for sentinel-datasource-nacos

1.8.3

(2021/12/31)

Features / Enhancements

Add support for Envoy RLS v3 API in sentinel-cluster-server-envoy-rls token server module (#2336)
Add metric exporter extension for exporting Sentinel metrics via JMX (#2275)

Bug Fixes

Fix QPS mode of system rule: use passQps instead of successQps and support batchCount (#2455)
Fix the bug that legacy API matchers in ScGatewayApiMatcherManager were not removed after the API group has been removed (#2436)

Integrations

Add ACL token support for Consul data-source (#2307)

Dashboard

Fix dashboard logo problem when customizing the context-path of the backend (#2253)
Add IP validation in API of MachineRegistryController

1.8.2

(2021/07/05)

Features / Enhancements

Improve performance of TimeUtil adaptively in different load conditions (#1746)
Support private-level blockHandler/fallback method for @SentinelResource annotation (#2163)
Add sentinel-transport-spring-mvc module (Spring Web as command center) (#1957)
Support Redis cluster mode in Redis data-source extension (#1751)
Support config from system env in SentinelConfig and polish TransportConfig in transport-common module (#2154)
Make all backend thread pools daemon (#2181)

Dashboard

Improve support for customizing auth-related implementations (#2059)

Dependencies

Upgrade Netty to 4.1.48.Final in sentinel-cluster modules

1.8.1

(2021/02/04)

NOTE: Since 1.8.1, Sentinel requires JDK 1.8 or higher version.

Features / Enhancements

Refactor SpiLoader and enhance SPI mechanism (#1383)
Add basic cluster concurrency limiting implementation in token server module (#1631)
Add Motan RPC adapter implementation (#1825)
Improve default block fallback logic in Dubbo 2.6.x adapter to avoid serialization problem (#1794)
Support setting flush interval of the metric log via SentinelConfig property (#1919)
Support both HTTP and HTTPS protocol in transport heartbeat module (#1896)
Make token client NettyTransportClient.getCurrentId() thread safe (#1707)

Bug fixes

Fix NPE bug when updating gateway flow rules and param flow rules before the route/API has been requested once (#1729, #1901)
Fix the bug that getServletPath() may return empty when matching URL in Zuul 1.x adapter (#1605)
Fix the problem that requests will never be blocked when slowRatioThreshold = 100% (#1779)

Dashboard

Add statIntervalMs field in DegradeRule dialog (#1781)
Add support for matching path pattern like /xx/** in authFilterExcludeUrls (#1971)
Fix issue of memory leak in real-time monitoring page (#1905)
Improve MetricFetcher under concurrent conditions (#1918)

Dependencies

Upgrade fastjson to 1.2.75
Upgrade snakeyaml to 1.26 in sentinel-cluster-server-envoy-rls module

1.8.0

(2020/08/20)

This nouveau release ships with countless features and improvements, specifically for circuit breaking. We've made progress on refactoring and improving circuit breaking feature, including arbitrary statistic duration support, half-open recovery, enhanced slow request ratio strategy, state change observer and more. We've also brought various versatile integrations including Java EE (JAX-RS and CDI), Quarkus and HTTP client (Apache HttpClient and OkHttp), which could cover more developers.

Features / Enhancements

Refactor degrade hierarchy with new circuit breaker mechanism and improve strategy (support arbitrary statistic duration, support half-open recovery, add slow request ratio strategy) (#1490, #1645)
Support setting project.name via the properties file and deprecate legacy config path (#1412, #1437)
Refactor the mechanism of recording exception (on completed) and polish Tracer (#1420)
Support setting class-level defaultFallback for annotation extension (#1493)
Add JAX-RS integration module (#1396)
Add annotation extension for Java EE CDI (#1541)
Add Sentinel annotation and JAX-RS plugins for Quarkus (#1542)
Add Apache HttpClient integration module (#1455)
Add OkHttp integration module (#1456)
Add Eureka data-source extension (#1502)
Add exceptionPredicate in Tracer for customized exception filtering logic (#1496)
Improve purge mechanism for deprecated ParameterMetric (#1372)
Support customized origin parser in Dubbo 2.6.x/2.7.x adapter and polish config mechanism (#1555, #1572, #1617)
Add support for extracting parameter value from complex object (#1491)
Add extended interface for metric extension hook to support distinguishing traffic type (#1665)
Improve default fallback for Apache Dubbo 2.7.x adapter (#1680)
Add per-Entry exit handler (whenTerminate) support (#1645)
Optimize the order of slots in ProcessorSlot SPI config (#1649)

Bug fixes

Fix sentinel-apache-dubbo-adapter full GC bug (#1431)
Fix the bug that may cause ErrorEntryFreeException when forwarding requests in sentinel-spring-webmvc-adapter (#1533, #1681)
Fix the bug of extracting request cookie in Spring Cloud Gateway adapter (#1400)
Fix the bug of misplaced locks in ContextUtil and ClusterNode (#1429)

Dashboard

Refactor degrade frontend/controller and adapt to new circuit breaking features
Fix the bug that cookie may have conflict with web applications under the same domain (#1443)
Fix historical version compatibility problem for auth checking via localStorage (#1473)

Dependencies

Upgrade fastjson to 1.2.71, nacos-client to 1.3.0 (in sentinel-datasource-nacos module)

1.7.2

(2020/04/08)

In this version, we've brought breaking changes about the slot SPI mechanism. The slot chain builder SPI has been deprecated (legacy classes were reserved for compatibility). Now Sentinel will take ProcessorSlot itself as SPI. Note that the slot might be stateful, so Sentinel will still build different new slot chains for each resource.

Furthermore, a new Logger SPI mechanism is introduced for flexible logging extension. The default RecordLog implementation is still based on java.util.logging, and developers could introduce dependencies of logging integration module to adapt to existing logging libraries (e.g. slf4j). See here for more details.

Features / Enhancements

Add SOFARPC adapter module (#1307)
Add Zuul 2.x gateway adapter module (#1138)
Refactor: Make ProcessorSlot itself as SPI and deprecate legacy slot chain builder (#411)
Add new Logger SPI to support flexible logging extension mechanism and add general JUL adapter for Logger SPI (#1307, #1338)
Polish placeholders in logging content to slf4j convention (#1342)
Add slf4j logging extension (#1344)
Add "web-context-unify" config in Spring WebMVC adapter to support "chain" relation flow strategy (#1328)
Improve Dubbo 2.7.5 compatibility problem in sentinel-apache-dubbo-adapter (#1296)
Force modifyRule command handler to fail if an incompatible old fastjson found (#1377)
Calculate both process and system CPU usage to support single process running in container environment (#1204)
Improve the logs when the heartbeat response indicates failure (#1303)

Bug fixes

Fix NPE bug in Tracer when context size exceeds the limit (#1293)
Fix the parsing issue in large post request for sentinel-transport-simple-http (#1255)
Fix the bug that context was not released when blocked in Spring Web adapter (#1353)
Fix timezone problem of sentinel-block.log

Dashboard

Improve the compatibility on the Content-Type header of POST request (#1260)
Enhance reliability and performance of InMemoryMetricsRepository (#1319)
Support setting value pattern for client IP and host in gateway flow rule dialog (#1325)
Hide advanced options in flow rule dialog when cluster mode is selected (#1367)
Fix NoNodeException problem of FlowRuleZookeeperProvider sample (#1352)

1.7.1

(2019/12/25)

Features / Enhancements

Add Sentinel Spring Web MVC adapter module (#1104)
Improve async invocation support for Dubbo 2.7.2+ in sentinel-apache-dubbo-adapter (#1124)
Support configuration for the heartbeat API path in transport module (#515)
Refactor: Get the max allowed RT directly from SentinelConfig.statisticMaxRt() to avoid implicit dependency chain (#1173)
Support setting config file path via system environment and improve error handling in SentinelConfigLoader

Bug fixes

Fix the incorrect logic of handling the end separator of the log directory in LogBase (#1172)
Fix Content-Type matching bug in sentinel-transport-simple-http module (#1207)
Fix the incorrect logic of getting maxSuccessQps in StatisticNode (#1196)

Dashboard

Improve the ACL checking mechanism and add @AuthAction annotation support (#1042)
Change the charset of UrlEncodedFormEntity to UTF-8 in SentinelApiClient to support non-ASCII characters (#1207)

1.7.0

(2019/11/12)

In this version, Sentinel provides an Envoy global rate limiting service implementation using Sentinel token server, so that Envoy service mesh could leverage the distributed flow control capability of Sentinel. See here for details.

Since 1.7.0, Sentinel supports configuration via arbitrary properties files. We could set the path of the properties file with the -Dcsp.sentinel.config.file property item. See here for more details.

Features / Enhancements

Add Sentinel Envoy RLS token server implementation (#1139)
Support arbitrary configuration properties file path for Sentinel (#804)
Improve the SPI ClassLoader mechanism to handle more complex scenarios (#1088)
Add support for resource classification and polish adapters (#1142)
Support customized block page HTTP status in sentinel-web-servlet-adapter (#1112)
Make rtSlowRequestAmount and minRequestAmount in DegradeRule configurable (#789)
Make maxParamByteSize configurable in ParamFlowRequestDataWriter of cluster client module and fix bugs (#823)
Improve Node and Metric interface to support conditional metric retrieval (#1115)
Support adding prefix to Dubbo service resource name in Sentinel Dubbo Adapter (#859)
Improve annotation aspect to support throwing original exception in fallback and blockHandler (#986)
Add Etcd DataSource extension (#1018)
Add Consul DataSource integration module (#979)
Add Spring Cloud Config data source extension (#899)
Improve the checking logic of SystemRule and enhance SystemRuleManager (#1050)
Add init parameter to support unifying web context name in Sentinel Web CommonFilter (#1111)
Support registering writable data-source for GatewayFlowRule and customized ApiDefinition (#1057)
Support URL exclusion using UrlCleaner in Spring WebFlux adapter (#1049)
Reuse connections of the same address in ZooKeeper data-source (#788)
Dependency update: fastjson to 1.2.62, nacos-client to 1.1.4, apollo-client to 1.5.0

Bug fixes

Fix the bug that resource name displayed in ClusterNode-related command APIs for SphU.entry(method) is incorrect (#1078)
Fix hookOnCancel handing logic in SentinelReactorSubscriber (#1089)
Fix the bug of getting the wrong current flow QPS in ClusterFlowChecker (#972)
Fix the numeric overflow bug of ping response data in the cluster module (#844)
Fix the bug of wrong RT and exception tracing in sentinel-grpc-adapter (#291 and #995)
Fix the bug that the Zuul adapter does not exit the entry with parameters (#1148)

Dashboard

Add version info in the left top of dashboard (#1015)
Support configuration for disabling login (#1004)

1.6.3

(2019/07/29)

This version provides entire support for managing API gateway flow rules and customized API groups in Sentinel dashboard.

Features / Enhancements

Add support for managing gateway flow rules and customized API group in Sentinel dashboard (#869)
Add support for excluding some URLs in Web Servlet CommonFilter (#914)
Add Ordered interface support for Spring Cloud Gateway filter (#937)
Support displaying SystemRule of CPU usage strategy in the dashboard (#927)
Use the unified context name in Web Servlet filter (#944)

Bug fixes

Fix the empty value matching problem in GatewayParamParser (#937)

Thanks for the contributors: @cdfive, @Crazy10552, @jasonjoo2010, @linlinisme, @lym-ifae

1.6.2

Features / Enhancements

Add support for request item pattern matching in API gateway flow control (#842)
Support parsing cookie as request items in API gateway flow control (#814)
Add support for logging into console for common logs (#836)

Bug fixes

Fix the parsing bug for command name that contains multiple slash in sentinel-transport-netty-http module (#817)
Fix the bug that numeric overflow might occur when refilling tokens in ParamFlowChecker (#838)

Dashboard

Improve the edit dialog for FlowRule and ParamFlowRule (#845)
Update frontend dependencies in package.json to fix vulnerabilities

1.6.1

Features / Enhancements

Refactor API gateway common module to separate converted rules from other rule managers (#758)
Separate parameter metric storage from ParamFlowSlot and improve ParamFlowRuleUtil
Refactor FlowRuleChecker to improve code reuse
Add SPI extension for Sentinel internal statistics (#730)
Add exceptionsToTrace and exceptionsToIgnore support in Tracer (#766)
Make SentinelConfig.loadProps() thread-safe using CopyOnWriteArraySet (#706)
Add CPU usage and system load to metric collecting command API (#749)
Add getCpuUsageThreshold() method in SystemRuleManager (#770)

Bug fixes

Fix the bug that parameters are not carried when exiting entries in SentinelReactorSubscriber
Fix the bug that Chinese characters are malformed in the response body of ZuulBlockFallbackProvider (#737)

Dashboard

Add ZooKeeper flow rule dynamic publisher sample (#714)

Thanks for the contributors: @haofangyuan, @jasonjoo2010, @kexianjun, @threedr3am, @yikangfeng, @yinjihuan

1.6.0

Breaking Changes

In 1.6.0, we refactored the statistic and flow control algorithm of parameter flow control. The old mechanism (LRU map + sliding window for the parameter) has been replaced by an algorithm like token bucket. Now parameter flow rule supports setting statistic interval (intervalSec), burst count (burst), traffic shaping mode (controlBehavior, currently supports default mode and throttling mode).

We've refactored and improved fallback support for @SentinelResource annotation to make it more understandable and common. See the document for more information.

Since 1.6.0, all API gateway adapter will be based on the sentinel-api-gateway-adapter-common module. There are some changes for Sentinel Zuul Adapter. In previous versions, the adapter will mark all serviceId and API path as resources. Since 1.6.0, the adapter will regard all route ID (aka. proxy) and customized API groups (defined in API gateway common module) as resources.

Features / Enhancements

Refactor rule, statistic and flow checking implementation for parameter flow control and support throttling traffic shaping mode (#677)
Add sentinel-api-gateway-adapter-common module for universal gateway rule and API definition management
Add Sentinel Spring Cloud Gateway adapter module and implementation (#695)
Refactor and improve Sentinel Zuul Adapter (#698)
Refactor and improve fallback support for @SentinelResource annotation (#693)
Support passing acquireCount and parameters to entry via SentinelReactorSubscriber in Sentinel Reactor Adapter (#630)
Support parsing HTTP POST request in sentinel-transport-netty-http and sentinel-transport-simple-http (#620)
Add FileInJarReadableDataSource to support reading config file in jar (#646)
Add @SpiOrder annotation and improve SPI loader to support loading SPI with highest precedence
Make CommandCenterProvider and HeartBeatSenderProvider choose the instance with highest precedence by default (#675)
Add exceptionsToIgnore configuration support in @SentinelResource annotation (#683)
Add appType property field in SentinelConfig (#696)

Bug fixes

Fix the NPE bug when passing null args to SphU.entry() and paramIdx is negative (#642)

Dashboard

Add a simple login page to support basic auth in Sentinel dashboard (#659)
Refinement and support HTTP POST request for update operations in SentinelApiClient (#620)
Fix CountDownLatch wait timeout in MetricFetcher when machine is dead (#645)

Thanks for the contributors: @cdfive, @dqing0, @jasonjoo2010, @luoxn28, @paulkennethkent, @shxz130, @yikangfeng, @zhaixiaoxiang

1.5.2

This minor version provides some bug fixes and enhancements (cherry-picked from 1.6.0).

Add @SpiOrder annotation and update SpiLoader to support loading SPI with the highest precedence (#675)
Make CommandCenterProvider and HeartBeatSenderProvider choose the instance with the highest precedence in transport module
Support passing parameters via SentinelReactorTransformer in sentinel-reactor-adapter (#630)
Fix the NPE bug when passing null args to SphU.entry() and paramIdx is negative (#642)

1.5.1

This version provides some bug fixes and enhancements.

Features / Enhancements

Add exceptionsToTrace configuration support in @SentinelResource annotation (#543)
Enhancements for handling Error in InitExecutor and LogBase (#613)
Improve ZookeeperDataSource to deal with bad connection when initializing (#597)
Add compatible adapter module sentinel-apache-dubbo-adapter for Apache Dubbo 2.7.x and above (#619)
Apply Alibaba p3c pmd plugin/rules and fix/ignore all violations of priority 1 (#574)
Improve field naming in ApolloDataSource (#593)

Bug fixes

Fix deadlock bug in Env static initialization (#610)
Fix bug of exiting entry with parameters in SentinelResourceAspect

Thanks for the contributors: @blindpirate, @beston123, @cdfive, @lawrencewu, @zhousiliang163

1.5.0

Breaking Changes

Since 1.5.0, the minimum JDK version has been updated to 1.7. JDK 1.6 is no longer supported.

There are some changes in Node interface: the return type of xxxQps methods (e.g. passQps, blockQps) has been changed from long to double to be more accurate.

In 1.5.0 we added common occupy mechanism in LeapArray so that Sentinel can occupy future buckets of the sliding window to support "final pass for prioritized requests when QPS exceeds the threshold". The Sph.entryWithPriority(xxx) method will take effect now in local flow control mode.

Features / Enhancements

Update minimum JDK version to 1.7 (for all modules)
Refactor Node interface: change return type of QPS get method to double (#564)
Add occupy mechanism for future buckets of sliding window to support "prioritized requests" (#568)
Add occupiable LeapArray support and code refactor/rearrangement
Add Sentinel Reactor module to support reactive integration (#545)
Add adapter module and implementation for Spring WebFlux (#556)
Add try-with-resources support for Entry class (#550)
Add an ApiCommandHandler to list all available commands and description (#491)
Add CPU usage checking support in system protection rule (#484)
Add a CommandCenterProvider to resolve and cache the CommandCenter instance (#409)
Automatically de-duplicate rules when loading rules (#571)
Support recording total inbound traffic data in metric file (#555)
Support passing args in Sph.entryWithPriority(xxx)
Allow negative paramIndex as reversed-order index in ParamFlowRule (#549)
Add AuthInfo parameter in the constructor of ZooKeeperDataSource to support ACL (#508)
Carry appName in FetchClusterServerInfo command
Optimize circuit breaking state transformation using CAS in DegradeRule (#538)
Improve sleeping-based tests to be more stable and optimize slow tests (#546)
Change default value of avgUsedTokens to zero to be more meaningful in DefaultController (#460)
Update fastjson dependency version to 1.2.56 (for sentinel-datasource-extension)
Update apollo-client version to 1.3.0 and add support for removing listener in sentinel-datasource-apollo (#562)

Bug fixes

Fix SimpleDateFormat concurrent issue in CspFormatter of sentinel-core (#548)
Fix Dubbo-related dependencies in sentinel-dubbo-demo (#534)

Dashboard

Support automatic/manual removal of unhealthy machines and disconnected applications in dashboard (#168)
Add basic interface for authentication and authorization in Sentinel dashboard (#503)
Improve management for foreign-app stand-alone token server in cluster page
Remove G2 lib tracking in frontend of Sentinel dashboard (#527)
Fix concurrent error in InMemoryMetricsRepository of the dashboard (#488)
Add Apollo flow rule publisher sample in Sentinel dashboard (#535)

Thanks for the contributors: @all4you, @ATAXGT, @cdfive, @HaojunRen, @hantianwei, @jasonjoo2010, @MickMo, @mjaow, @nick-tan, @xburning, @yikangfeng, @yklove

1.4.2

Features / Enhancements

Add Zuul 1.x adapter module for Sentinel (#188, @tigerMoon)
Add catch throwable logic in ClusterStateManager to detect fatal error when loading SPI
Add back thread count metric type support for parameter flow control
Carry the triggered rule in subclasses of BlockException (#469)
Support tracing exception count for specific entry or context in Tracer
Add volatile in double-checked locking field in ClusterBuilderSlot (@mjaow)
Improve ClusterServerConfigManager in sentinel-cluster-server-default and add basic test cases
Remove slf4j dependency in sentinel-annotation-aspectj module
Improve and fix bugs for ConnectionManager and add test cases
Update Nacos SDK version to 0.8 in Nacos data-source extension module and update Nacos namespace demo (#474, @yanlinly)
HashMap init optimize when adding new ClusterNode to cluster node map (#465, @luoxn28)
Make build faster by reducing fixed waiting time in tests (#449, @aalmiray)
Add some unit test for StatisticNode, ClusterNode and DefaultNodeBuilder class (#423, @cdfive)
Update dependency version of fastjson and jacoco-maven-plugin

Bug fixes

Fix negative waitTime bug in RateLimiterController (fixes #420)
Fix zero-count divide overflow bug in RateLimiterController (#461, @mjaow)
Fix error value type and rename variable in EntranceNode class (#457, @mjaow)
Fix NPE bug when creating connection group in ConnectionManager of token server (#467)
Fix NPE bug when adding event count concurrently for different parameter values in ParamMapBucket (#494)
Fix bug of calculating param size and amount in ParamFlowRequestDataWriter of Sentinel cluster (#495)

Dashboard

Rename dashboard package name from com.taobao.* to com.alibaba.* (#435)
Make fallbackToLocalWhenFail of cluster rule configurable in Sentinel dashboard (#370, @cdfive)
Fix data model problem in edit dialog of Sentinel dashboard (#370, @cdfive)
Add healthyMachineCount and totalCount information in sidebar of Sentinel dashboard (#376, @jz0630)
Change text of p_qps and b_qps to be more intuitive in monitoring page (#398, @Arlmls)
When clicking the first-level menu of sidebar, don't jump to the home page (#422, @cdfive)

Thanks for the contributors: @aalmiray, @all4you, @Arlmls, @cdfive, @jz0630, @kangyl, @kexianjun, @Leishunyu, @luoxn28, @mjaow, @pig4cloud, @tigerMoon, @wangjunwei87, @yanlinly

1.4.1

This is a milestone version that provides enhancements for cluster flow control.

Improve Sentinel dashboard for cluster flow control management (#384)
Support multiple tokens per request entry (#380)
Improve retry and stop control logic in cluster token client
Improve cluster state manager to modify cluster mode more flexible
Enhance config and log for cluster token client
Improve namespace register logic for embedded cluster token server mode
Add cluster embedded mode handling logic for parameter flow checker
Add basic monitoring command API for cluster token server
Upgrade nacos-client version and construct NacosDataSource by Properties (#348, @fangjian0423)
Make the default statistic max RT value TIME_DROP_VALVE configurable (#292, @cdfive)
Rearrange the constructor of LeapArray to match with interval and sampleCount property
Refinement for heartbeat logic in sentinel-transport related module
Polish cluster flow control demo to be more instructive
Add some unit test for sentinel-transport-netty-http module (#321, @cdfive)
Fix bug in search logic of metric files (#331)
Fix wrong empty check in FlowRuleApiPublisher of Sentinel dashboard (#353, @foreveryang321)

Thanks for the contributors: @allencloud, @canglang1973, @cdfive, @fangjian0423, @foreveryang321, @jz0630, @YoungHu

1.3.1

This is a bug-fix version based on 1.3.0-GA.

1.4.0

This is a significant milestone version that provides cluster flow control feature.

Note: The cluster flow control module requires JDK 1.7 or later versions.

Add cluster flow control interface and default implementation (#257, #294)
- Add basic token client and server interface in Sentinel Core
- Add cluster common module for common interface, entity and registry
- Add cluster client module for default token client implementation (using Netty as transport library)
- Add cluster server module for default token server implementation
- Add basic cluster config and rule management mechanism
- Support flexible transformation of cluster mode (between client and embedded server)
- Add basic support for cluster mode in Sentinel dashboard (#302)
Add prioritized entry support in ProcessorSlot and SphU (#255)
Add "warmup with rate limiting" implementation for traffic shaping (#220)
Add HTTP-method level flow control support in Sentinel Web Servlet Filter (#282, @ro9er)
Add client ip property in transport common module to resolve ip problem in Docker env (#261, @nick-tan)
Optimize the click sensitivity of dashboard's sidebar menu (#268, @cdfive)
Extract annotation support base class for customized AOP extensions (#223, #214, @bitonly)
Extract flow rule checker from FlowRule (#234)
Improve log info and condition about fetching metrics in Sentinel dashboard (#219, @xcaspar)
Fix padding issue of charts in monitoring page of Sentinel dashboard (fixes #251, @cdfive)
Support parameters in entry of Sentinel annotation support to enable parameter flow control
Support automatic exception tracing in Sentinel annotation support

Thanks for the contributors: @bitonly, @canglang1973, @cdfive, @nick-tan, @ro9er, @xcaspar

1.3.0

This is a production-ready GA version including enhancements for Sentinel dashboard and some other enhancements / bug fixes.

Add support for configuring authority rules and parameter rules in Sentinel Dashboard (#176, #189)
Add support for degrading by exception count per minute (#174)
@SentinelResource annotation supports method name as default resource name (#187)
Enhance rule checking in rule managers and Sentinel Dashboard (#202)
Support config the log base directory via system property
Support config whether the log name contains pid
Support to retry when port specified has been used in sentinel-transport-netty-http (#161, @jasonjoo2010)
LogBase support variable arguments (#161, @jasonjoo2010)
Fix bug for wrong coordinate scaling of QPS chart (passed/blocked) in monitoring page of Sentinel Dashboard (fixes #22, @jasonjoo2010)
Fix bug for wrong log file name checking and performance problem (fixes #181)
Fix bug for body reading in HttpServerHandler of sentinel-transport-netty-http (fixes #184, @jasonjoo2010)
Fix bug for ConcurrentModificationException when getting machine map in AppInfo of Sentinel Dashboard (fixes #201)

Thanks for the contributors: @jasonjoo2010, @shannon312, @waveng

0.2.0

This is a milestone version providing new cool features like asynchronous invocation support and flow control by frequent (hot spot) parameters.

Note: this is the last milestone version that supports JDK 1.6. Since next milestone version, the minimum JDK version will be 1.7.

Add support for asynchronous invocation entry (#146)
Flow control by frequent (hot spot) parameters (#156)
Support extensible slot chain builder using SPI mechanism (#145)
Refactor data source hierarchy: spilt into readable and writable data source (#124)
Add callback registry for statistic slot for extensions
Add Redis data source extension (#102, @tigerMoon)
Add MetricsRepository interface and reuse original in-memory implementation for Sentinel Dashboard (#126)
Access control for white-list / black-list (AuthorityRule)
Support JDK-based proxy in Sentinel annotation support (#111)
Enhance exception tracing in Sentinel Dubbo Adapter
Enhance FileRefreshableDataSource (check file modified) and support FileWritableDataSource (#125, @yfh0918)
Add RequestOriginParser for Sentinel Web Servlet Integration to support extracting request origin
Refactor LeapArray to reuse code for current bucket
Enhance log and null check for rule managers
Add benchmark for Sentinel
Extract MetricsReader from MetricSearcher (#103, @refactormachine)
Fix bugs for Sentinel internal error when context count exceeds MAX_CONTEXT_NAME_SIZE (#152)
Fix bugs for degrade rule checking (fixes #109 and #128)
Fix bug for error file separator regex in Windows environment (fixes #52)
Fix bug for missing maxQueueingTimeMs in equals and hashCode method of FlowRule (fixes #99)
Fix bug for system rule page in Sentinel Dashboard (fixes #51)
Fix bug for automatic exit of default context when exiting the entry
Fix bug for probability of metric lose when collecting metrics
Fix bug for update logic of minRt in metric bucket

Thanks for the contributors: @kimmking, @refactormachine, @talshalti, @tigerMoon, @yfh0918

0.1.2

This is a bug-fix version, including bug fixes and enhancement:

Fix bugs for Sentinel internal error when context count exceeds MAX_CONTEXT_NAME_SIZE (fixes #151)
Fix bugs for degrade rule checking (fixes #109 and #128)
Fix bug for error file separator regex in Windows environment (fixes #52)
Fix bug for missing maxQueueingTimeMs in equals and hashCode method of FlowRule (fixes #99)
Fix bug for system rule page in Sentinel Dashboard (fixes #51)
Fix bug for automatic exit of default context when exiting the entry
Fix bug for probability of metric lose when collecting metrics
Fix bug for update logic of minRt in metric bucket
Support JDK-based proxy in Sentinel annotation support (#111)
Enhance log and null check for rule managers

0.1.1

Add Nacos data source extension (#8)
Use named thread factory for clear identification (#10)
Add ZooKeeper data source extension (#33, @guonanjun)
Add Sentinel annotation and AspectJ support (#43)
Add default fallback support for Dubbo adapter
Add Apollo data source extension (#46, @nobodyiam)
Optimize for statistic data structures (leap array)
Enhance error handling when parsing bad dashboard addresses (fixes #38)
Fix bugs about runtime port and heartbeat sending logic (fixes #20)
Refine degrade rule checking and default value of flow rule attributes
Remove sentinel-spring-boot-starter module (replaced by spring-cloud-starter-sentinel module in Spring Cloud Alibaba)

Thanks for the contributors: @guonanjun, @manzhizhen, @nobodyiam, @xg1907