| ## 8.4.0 |
| |
| #### Project |
| * Incompatible with previous releases when use H2/MySQL/TiDB storage options, due to support multiple alarm rules triggered for one entity. |
| * Chore: adapt `create_source_release.sh` to make it runnable on Linux. |
| * Add `package` to `.proto` files, prevent polluting top-level namespace in some languages; The OAP server supports previous agent releases, whereas the previous OAP server (<=8.3.0) won't recognize newer agents since this version (>= 8.4.0). |
| * Add ElasticSearch 7.10 to test matrix and verify it works. |
| * Replace Apache RAT with skywalking-eyes to check license headers. |
| * Set up test of Envoy ALS / MetricsService under Istio 1.8.2 to verify Envoy V3 protocol |
| * Test: fix flaky E2E test of Kafka. |
| |
| #### Java Agent |
| * The operation name of quartz-scheduler plugin, has been changed as the `quartz-scheduler/${className}` format. |
| * Fix jdk-http and okhttp-3.x plugin did not overwrite the old trace header. |
| * Add interceptors of method(analyze, searchScroll, clearScroll, searchTemplate and deleteByQuery) for elasticsearch-6.x-plugin. |
| * Fix the unexpected RunningContext recreation in the Tomcat plugin. |
| * Fix the potential NPE when trace_sql_parameters is enabled. |
| * Update `byte-buddy` to 1.10.19. |
| * Fix thrift plugin trace link broken when intermediate service does not mount agent |
| * Fix thrift plugin collects wrong args when the method without parameter. |
| * Fix DataCarrier's `org.apache.skywalking.apm.commons.datacarrier.buffer.Buffer` implementation isn't activated in `IF_POSSIBLE` mode. |
| * Fix ArrayBlockingQueueBuffer's useless `IF_POSSIBLE` mode list |
| * Support building gRPC TLS channel but CA file is not required. |
| * Add witness method mechanism in the agent plugin core. |
| * Add Dolphinscheduler plugin definition. |
| * Make sampling still works when the trace ignores plug-in activation. |
| * Fix mssql-plugin occur ClassCastException when call the method of return generate key. |
| * The operation name of dubbo and dubbo-2.7.x-plugin, has been changed as the `groupValue/className.methodName` format |
| * Fix bug that rocketmq-plugin set the wrong tag. |
| * Fix duplicated `EnhancedInstance` interface added. |
| * Fix thread leaks caused by the elasticsearch-6.x-plugin plugin. |
| * Support reading segmentId and spanId with toolkit. |
| * Fix RestTemplate plugin recording url tag with wrong port |
| * Support collecting logs and forwarding through gRPC. |
| * Support config `agent.sample_n_per_3_secs` can be changed in the runtime. |
| * Support config `agent.ignore_suffix` can be changed in the runtime. |
| * Support DNS periodic resolving mechanism to update backend service. |
| * Support config `agent.trace.ignore_path` can be changed in the runtime. |
| * Added support for transmitting logback 1.x and log4j 2.x formatted & un-formatted messages via gPRC |
| |
| #### OAP-Backend |
| * Make meter receiver support MAL. |
| * Support influxDB connection response format option. Fix some error when use JSON as influxDB response format. |
| * Support Kafka MirrorMaker 2.0 to replicate topics between Kafka clusters. |
| * Add the rule name field to alarm record storage entity as a part of ID, to support multiple alarm rules triggered for one entity. The scope id has been removed from the ID. |
| * Fix MAL concurrent execution issues. |
| * Fix group name can't be queried in the GraphQL. |
| * Fix potential gRPC connection leak(not closed) for the channels among OAP instances. |
| * Filter OAP instances(unassigned in booting stage) of the empty IP in KubernetesCoordinator. |
| * Add component ID for Python aiohttp plugin requester and server. |
| * Fix H2 in-memory database table missing issues |
| * Add component ID for Python pyramid plugin server. |
| * Add component ID for NodeJS Axios plugin. |
| * Fix searchService method error in storage-influxdb-plugin. |
| * Add JavaScript component ID. |
| * Fix CVE of UninstrumentedGateways in Dynamic Configuration activation. |
| * Improve query performance in storage-influxdb-plugin. |
| * Fix the uuid field in GRPCConfigWatcherRegister is not updated. |
| * Support Envoy {AccessLog,Metrics}Service API V3. |
| * Adopt the [MAL](../concepts-and-designs/mal.md) in Envoy metrics service analyzer. |
| * Fix the priority setting doesn't work of the ALS analyzers. |
| * Fix bug that `endpoint-name-grouping.yml` is not customizable in Dockerized case. |
| * Fix bug that istio version metric type on UI template mismatches the otel rule. |
| * Improve ReadWriteSafeCache concurrency read-write performance |
| * Fix bug that if use JSON as InfluxDB.ResponseFormat then NumberFormatException maybe occur. |
| * Fix `timeBucket` not taking effect in EqualsAndHashCode annotation of some relationship metrics. |
| * Fix `SharingServerConfig`'s propertie is not correct in the `application.yml`, contextPath -> restConnextPath. |
| * Istio control plane: remove redundant metrics and polish panel layout. |
| * Fix bug endpoint name grouping not work due to setting service name and endpoint name out of order. |
| * Fix receiver analysis error count metrics. |
| * Log collecting and query implementation. |
| * Support Alarm to feishu. |
| * Add the implementation of ConfigurationDiscovery on the OAP side. |
| * Fix bug in `parseInternalErrorCode` where some error codes are never reached. |
| * OAL supports multiple values when as numeric. |
| * Add node information from the Openensus proto to the labels of the samples, to support the identification of the source of the Metric data. |
| * Fix bug that the same sample name in one MAL expression caused `IllegalArgumentException` in `Analyzer.analyse`. |
| * Add the text analyzer for querying log in the es storage. |
| * Chore: Remove duplicate codes in Envoy ALS handler. |
| * Remove the strict rule of OAL disable statement parameter. |
| * Fix a legal metric query adoption bug. Don't support global level metric query. |
| * Add VM MAL and ui-template configration, support Prometheus node-exporter VM metrics that pushed from OpenTelemetry-collector. |
| * Remove unused log query parameters. |
| |
| #### UI |
| * Fix un-removed tags in trace query. |
| * Fix unexpected metrics name on single value component. |
| * Don't allow negative value as the refresh period. |
| * Fix style issue in trace table view. |
| * Separation Log and Dashboard selector data to avoid conflicts. |
| * Fix trace instance selector bug. |
| * Fix Unnecessary sidebar in tooltips for charts. |
| * Refactor dashboard query in a common script. |
| * Implement refreshing data for topology by updating date. |
| * Implement group selector in the topology. |
| * Fix all as default parameter for services selector. |
| * Add icon for Python aiohttp plugin. |
| * Add icon for Python pyramid plugin. |
| * Fix topology render all services nodes when groups changed. |
| * Fix rk-footer utc input's width. |
| * Update rk-icon and rewrite rk-header svg tags with rk-icon. |
| * Add icon for http type. |
| * Fix rk-footer utc without local storage. |
| * Sort group names in the topology. |
| * Add logo for Dolphinscheduler. |
| * Fix dashboard wrong instance. |
| * Add a legend for the topology. |
| * Update the condition of unhealthy cube. |
| * Fix: use icons to replace buttons for task list in profile. |
| * Fix: support `=` in the tag value in the trace query page. |
| * Add envoy proxy component logo. |
| * Chore: set up license-eye to check license headers and add missing license headers. |
| * Fix prop for instances-survey and endpoints-survey. |
| * Fix envoy icon in topology. |
| * Implement the service logs on UI. |
| * Change the flask icon to light version for a better view of topology dark theme. |
| * Implement viewing logs on trace page. |
| * Fix update props of date component. |
| * Fix query conditions for logs. |
| * Fix style of selectors to word wrap. |
| * Fix logs time. |
| * Fix search ui for logs. |
| |
| #### Documentation |
| * Update the documents of backend fetcher and self observability about the latest configurations. |
| * Add documents about the group name of service. |
| * Update docs about the latest UI. |
| * Update the document of backend trace sampling with the latest configuration. |
| * Update kafka plugin support version to 2.6.1. |
| * Add FAQ about `Fix compiling on Mac M1 chip`. |
| |
| All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/68?closed=1) |
