Release Apache SkyWalking GraalVM Distro 0.2.1

Release Apache SkyWalking GraalVM Distro 0.2.1.
By SkyWalking Team |

SkyWalking GraalVM Distro 0.2.1 is released. Go to downloads page to find release tars.

This is the first official Apache release of the GraalVM Distro.

Changes

Apache SkyWalking GraalVM Distro is a GraalVM native image distribution of the Apache SkyWalking OAP server. It compiles the full-featured OAP server into a single native binary (~200MB), delivering instant startup and reduced memory footprint compared to the standard JVM distribution.

  • Build-time OAL engine: pre-compile ~1285 metrics/builder/dispatcher classes via Javassist at Maven compile time.
  • Build-time MAL compiler: pre-compile ~1250 MAL expressions from 71 YAML rule files into MalExpression classes.
  • Build-time LAL compiler: pre-compile ~10 LAL scripts from 8 YAML files into LalExpression classes.
  • Build-time Hierarchy compiler: pre-compile ~4 hierarchy matching rules into BiFunction classes.
  • Build-time MeterSystem: pre-generate ~1188 meter function subclasses via Javassist.
  • Auto-generate reflect-config.json by scanning HTTP handlers, GraphQL resolvers/types, config POJOs, and DSL manifests.
  • Replace Groovy runtime with pure Java: MAL DSL, LAL DSL, and Hierarchy rules all use ANTLR4 + Javassist v2 engines.
  • Replace Guava ClassPath.from() classpath scanning with build-time manifests for annotations, dispatchers, and source receivers.
  • Replace Field.setAccessible() reflection in config loading with Lombok @Setter-based property copying.
  • Replace ServiceLoader SPI discovery with direct provider wiring in ModuleDefine.
  • Add TraceQL module (Tempo-compatible trace query API) with Zipkin and SkyWalking datasource support.
  • JVM distribution: repackaged OAP server with all replacement classes via maven-shade-plugin.
  • Native distribution: single binary (~200MB) with config files, LICENSE, NOTICE, and third-party licenses.
  • Docker image available on both GHCR and Docker Hub, with multi-arch support for linux/amd64 and linux/arm64.
  • macOS native binary: build locally via make native-image on macOS.
  • Sync SkyWalking submodule to upstream commit 64a1795d8a.