在Quarkus中使用Vert.x-redis构建本机映像的问题

Question

使用vertx-redis-client以纯模式构建quarkus应用程序时遇到问题

我正在尝试使用连接，设置和添加方法创建一个缓存类。当我使用set和get方法时，我试图打开一个新的Redis连接。

使用./mvnw编译quarkus：dev应用程序运行正常。但是，当我尝试构建本机映像时，出现错误：

Error: No instances of io.netty.buffer.UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf are allowed in the image heap as this class should be initialized at image runtime. To see how this object got instantiated use -H:+TraceClassInitialization.
Detailed message:
Trace:  object io.netty.buffer.UnreleasableByteBuf
        object io.vertx.core.buffer.impl.BufferImpl
        object io.vertx.redis.client.impl.types.BulkType
        method io.vertx.redis.client.impl.RESPParser.handle(Buffer)
Call path from entry point to io.vertx.redis.client.impl.RESPParser.handle(Buffer): 
        at io.vertx.redis.client.impl.RESPParser.handle(RESPParser.java:51)
        at io.vertx.redis.client.impl.RESPParser.handle(RESPParser.java:25)
        at io.vertx.core.impl.ContextImpl.executeTask(ContextImpl.java:369)
        at io.vertx.core.impl.WorkerContext.lambda$wrapTask$0(WorkerContext.java:35)
        at io.vertx.core.impl.WorkerContext$$Lambda$547/789610232.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
        at com.oracle.svm.core.thread.JavaThreads.threadStartRoutine(JavaThreads.java:460)
        at com.oracle.svm.core.posix.thread.PosixJavaThreads.pthreadStartRoutine(PosixJavaThreads.java:193)
        at com.oracle.svm.core.code.IsolateEnterStub.PosixJavaThreads_pthreadStartRoutine_e1f4a8c0039f8337338252cd8734f63a79b5e3df(generated:0)

com.oracle.svm.core.util.UserError$UserException: No instances of io.netty.buffer.UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf are allowed in the image heap as this class should be initialized at image runtime. To see how this object got instantiated use -H:+TraceClassInitialization.
Detailed message:
Trace:  object io.netty.buffer.UnreleasableByteBuf
        object io.vertx.core.buffer.impl.BufferImpl
        object io.vertx.redis.client.impl.types.BulkType
        method io.vertx.redis.client.impl.RESPParser.handle(Buffer)
Call path from entry point to io.vertx.redis.client.impl.RESPParser.handle(Buffer): 
        at io.vertx.redis.client.impl.RESPParser.handle(RESPParser.java:51)
        at io.vertx.redis.client.impl.RESPParser.handle(RESPParser.java:25)
        at io.vertx.core.impl.ContextImpl.executeTask(ContextImpl.java:369)
        at io.vertx.core.impl.WorkerContext.lambda$wrapTask$0(WorkerContext.java:35)
        at io.vertx.core.impl.WorkerContext$$Lambda$547/789610232.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
        at com.oracle.svm.core.thread.JavaThreads.threadStartRoutine(JavaThreads.java:460)
        at com.oracle.svm.core.posix.thread.PosixJavaThreads.pthreadStartRoutine(PosixJavaThreads.java:193)
        at com.oracle.svm.core.code.IsolateEnterStub.PosixJavaThreads_pthreadStartRoutine_e1f4a8c0039f8337338252cd8734f63a79b5e3df(generated:0)

        at com.oracle.svm.core.util.UserError.abort(UserError.java:75)
        at com.oracle.svm.hosted.FallbackFeature.reportAsFallback(FallbackFeature.java:223)
        at com.oracle.svm.hosted.NativeImageGenerator.runPointsToAnalysis(NativeImageGenerator.java:737)
        at com.oracle.svm.hosted.NativeImageGenerator.doRun(NativeImageGenerator.java:526)
        at com.oracle.svm.hosted.NativeImageGenerator.lambda$run$0(NativeImageGenerator.java:444)
        at java.util.concurrent.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1386)
        at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
        at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
        at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
        at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: No instances of io.netty.buffer.UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf are allowed in the image heap as this class should be initialized at image runtime. To see how this object got instantiated use -H:+TraceClassInitialization.
Detailed message:
Trace:  object io.netty.buffer.UnreleasableByteBuf
        object io.vertx.core.buffer.impl.BufferImpl
        object io.vertx.redis.client.impl.types.BulkType
        method io.vertx.redis.client.impl.RESPParser.handle(Buffer)
Call path from entry point to io.vertx.redis.client.impl.RESPParser.handle(Buffer): 
        at io.vertx.redis.client.impl.RESPParser.handle(RESPParser.java:51)
        at io.vertx.redis.client.impl.RESPParser.handle(RESPParser.java:25)
        at io.vertx.core.impl.ContextImpl.executeTask(ContextImpl.java:369)
        at io.vertx.core.impl.WorkerContext.lambda$wrapTask$0(WorkerContext.java:35)
        at io.vertx.core.impl.WorkerContext$$Lambda$547/789610232.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
        at com.oracle.svm.core.thread.JavaThreads.threadStartRoutine(JavaThreads.java:460)
        at com.oracle.svm.core.posix.thread.PosixJavaThreads.pthreadStartRoutine(PosixJavaThreads.java:193)
        at com.oracle.svm.core.code.IsolateEnterStub.PosixJavaThreads_pthreadStartRoutine_e1f4a8c0039f8337338252cd8734f63a79b5e3df(generated:0)

        at com.oracle.graal.pointsto.constraints.UnsupportedFeatures.report(UnsupportedFeatures.java:130)
        at com.oracle.graal.pointsto.BigBang.finish(BigBang.java:565)
        at com.oracle.svm.hosted.NativeImageGenerator.runPointsToAnalysis(NativeImageGenerator.java:688)
        ... 7 more

我的缓存类：

import io.quarkus.runtime.annotations.RegisterForReflection;
import io.vertx.core.Vertx;
import io.vertx.redis.client.Redis;
import io.vertx.redis.client.RedisAPI;
import io.vertx.redis.client.RedisOptions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import java.util.concurrent.CompletableFuture;

@ApplicationScoped
public class Cache {
    Logger logger = LoggerFactory.getLogger(Cache.class);

    RedisAPI redis;

    @Inject
    Vertx vertx;

    private void verifyConnection() {
        if(redis == null) {
            CompletableFuture<RedisAPI> connectionResult = new CompletableFuture<RedisAPI>();
            Redis.createClient(vertx, new RedisOptions())
                    .connect(onConnect -> {
                        if (onConnect.succeeded()) {
                            Redis client = onConnect.result();
                            connectionResult.complete(RedisAPI.api(client));
                        } else {
                            connectionResult.complete(null);
                        }
                    });
            redis = connectionResult.join();
        }
    }

    public String get (String key) {
        verifyConnection();
        CompletableFuture<String> lambdaResult = new CompletableFuture<>();
        redis.get(key, res -> {
            if (res.succeeded()) {
                if (res.result() != null) {
                    lambdaResult.complete(res.result().toString());
                } else {
                    lambdaResult.complete(null);
                }
            } else {
                lambdaResult.complete(null);
            }
        });

        return lambdaResult.join();
    }

    public void set(String key, String data) {
        verifyConnection();
        redis.append(key, data, res -> {
            if (res.failed()) {
                logger.error("Error to send data to Cache");
            }
        });
    }
}

Answer 1

这表明我们可能需要扩展才能使其正常运行，但您可以先通过调整GraalVM设置尝试在应用程序中进行此操作。

您可以尝试在运行时初始化io.vertx.redis.client.impl.RESPParser。您可以检查https://quarkus.io/guides/writing-native-applications-tips#delaying-class-initialization以获得有关如何在应用程序中执行此操作的更多信息。

如果您最终可以使用它，请在quarkus-dev上进行报告，因为我们正在开发Redis扩展程序，您的反馈意见可能会对即将进行此工作的人们有用。