GraalVM Native Image

[ryan-2048]

Is it possible to support compiling Native Images with GraalVM? I have encountered reflection issues. If it can be compiled into binary files, it will be a great success for low performance machines!

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GraalVM Native Image: Generating 'tb-edge-3.5.1.1EDGE-boot' (executable)...

[1/7] Initializing... (7.3s @ 0.23GB)
Version info: 'GraalVM 22.3.5 Java 11 EE'
Java version info: '11.0.22+9-LTS-jvmci-22.3-b32'
C compiler: gcc (linux, x86_64, 9.4.0)
Garbage collector: Serial GC
[2/7] Performing analysis... [******] (25.2s @ 1.11GB)
3,547 (75.12%) of 4,722 classes reachable
4,613 (55.13%) of 8,368 fields reachable
17,333 (48.80%) of 35,519 methods reachable
147 classes, 0 fields, and 475 methods registered for reflection
59 classes, 59 fields, and 52 methods registered for JNI access
4 native libraries: dl, pthread, rt, z
[3/7] Building universe... (2.6s @ 1.70GB)

Warning: Reflection method java.lang.Class.forName invoked at org.springframework.boot.loader.PropertiesLauncher.wrapWithCustomClassLoader(PropertiesLauncher.java:368)
Warning: Reflection method java.lang.Class.forName invoked at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:46)
Warning: Reflection method java.lang.Class.getMethod invoked at org.springframework.boot.loader.jar.JarFileEntries.(JarFileEntries.java:66)
Warning: Reflection method java.lang.Class.getDeclaredMethod invoked at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:47)
Warning: Reflection method java.lang.Class.getDeclaredConstructor invoked at org.springframework.boot.loader.PropertiesLauncher.newClassLoader(PropertiesLauncher.java:385)
Warning: Reflection method java.lang.Class.getDeclaredConstructor invoked at org.springframework.boot.loader.jar.Handler.getFallbackHandler(Handler.java:200)
Warning: Aborting stand-alone image build due to reflection use without configuration.
Warning: Use -H:+ReportExceptionStackTraces to print stacktrace of underlying exception

                    1.0s (2.7% of total time) in 15 GCs | Peak RSS: 2.25GB | CPU load: 3.25

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Failed generating 'tb-edge-3.5.1.1EDGE-boot' after 35.5s.
Generating fallback image...
Warning: Image 'tb-edge-3.5.1.1EDGE-boot' is a fallback image that requires a JDK for execution (use --no-fallback to suppress fallback image generation and to print more detailed information why a fallback image was necessary).

[AndriiLandiak]

Hi, @Kevin-ox.

Could you provide more details of your configuration?

Here is my flow: I recently updated to the latest version of tb-edge on Ubuntu by installing the .deb package from the site. To leverage the capabilities of JVMCI (JVM Compiler Interface), which is supported in Java 11, I made some adjustments to the tb-edge.conf configuration file. Specifically, I appended the following JAVA_OPTS to enable JVMCI and specify GraalVM as the compiler, including an option to display the compiler configuration information:

export JAVA_OPTS="$JAVA_OPTS -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -XX:+UseJVMCICompiler -Dgraal.ShowConfiguration=info"

As a result, it enabled me to use GraalVM as a compiler with a specific log:

Using Graal compiler configuration 'community' provided by org.graalvm.compiler.hotspot.CommunityCompilerConfigurationFactory loaded from jrt:/jdk.internal.vm.compiler/org/graalvm/compiler/hotspot/CommunityCompilerConfigurationFactory.class

Regarding the status of tb-edge, running service tb-edge status might display some errors, but it's important to note that these don't impact the functioning of Edge, and it operates as expected.

[AndriiLandiak]

I am closing this issue due to inactivity. Please feel free to reopen it if you have any more questions.

[ryan-2048]

I wanted to release a native image (instead of a. jar file) to greatly improve performance, but was unsuccessful.

[ryan-2048]

@AndriiLandiak