Changes 8.0.0

8.0.0

Project

• v3 protocol is added and implemented. All previous releases are incompatible with 8.x releases.
• Service, Instance, Endpoint register mechanism and inventory storage entities are removed.
• New GraphQL query protocol is provided, the legacy protocol is still supported(plan to remove at the end of this year).
• Support Prometheus network protocol. Metrics in Prometheus format could be transferred into SkyWalking.
• Python agent provided.
• All inventory caches have been removed.
• Apache ShardingSphere(4.1.0, 4.1.1) agent plugin provided.

Java Agent

• Add MariaDB plugin.
• Vert.x plugin enhancement. More cases are covered.
• Support v3 extension header.
• Fix ElasticSearch 5.x plugin TransportClient error.
• Support Correlation protocol v1.
• Fix Finagle plugin bug, in processing Noop Span.
• Make CommandService daemon to avoid blocking target application shutting down gracefully.
• Refactor spring cloud gateway plugin and support tracing spring cloud gateway 2.2.x

OAP-Backend

• Support meter system for Prometheus adoption. In future releases, we will add native meter APIs and MicroMeter(Sleuth) system.
• Support endpoint grouping.
• Add SuperDataSet annotation for storage entity.
• Add superDatasetIndexShardsFactor in the ElasticSearch storage, to provide more shards for @SuperDataSet annotated entites. Typically TraceSegment.
• Support alarm settings for relationship of service, instance, and endpoint level metrics.
• Support alarm settings for database(conjecture node in tracing scenario).
• Data Model could be added in the runtime, don't depend on the bootstrap sequence anymore.
• Reduce the memory cost, due to no inventory caches.
• No buffer files in tracing and service mesh cases.
• New ReadWriteSafe cache implementation. Simplify codes.
• Provide default way for metrics query, even the metrics doesn't exist.
• New GraphQL query protocol is provided. Support the metrics type query.
• Set up length rule of service, instance, and endpoint.
• Adjust the default jks for ElasticSearch to empty.
• Fix Apdex function integer overflow issue.
• Fix profile storage issue.
• Fix TTL issue.
• Fix H2 column type bug.
• Add JRE 8-14 test for the backend.

UI

• UI dashboard is 100% configurable to adopt new metrics definited in the backend.

Document

• Add v8 upgrade document.
• Make the coverage accurate including UT and e2e tests.
• Add miss doc about collecting parameters in the profiled traces.

CVE

• Fix SQL Injection vulnerability in H2/MySQL implementation.
• Upgrade Nacos to avoid the FastJson CVE in high frequency.
• Upgrade jasckson-databind to 2.9.10.

All issues and pull requests are here