Question

我是新来点燃并尝试运行我的简单多节点计算示例。我写了以下简单的应用程序：

try(Ignite ignite = Ignition.start("example-cache.xml")){
       IgniteCompute asyncCompute = ignite.compute().withAsync();
       for(int i = 0; i < 100; i++) {
           int[] a = new int[1];
           a[0] = i;
           asyncCompute.call(() -> {
               out.println(a[0]);
               return a[0];
           });
       }
 }

首先，我运行了3个带有{{1}}的服务器节点，该服务器节点提供了二进制点火分发。每个都在不同的JVM实例中。

然后我构建这个应用程序并使用与之前的3个服务器节点相同的xml-spring配置运行它。

但实际上我遇到了以下异常：

ignite.sh

这个例外非常清楚。但是我们需要class org.apache.ignite.IgniteCheckedException: com.test.App at org.apache.ignite.internal.util.IgniteUtils.unmarshal(IgniteUtils.java:9826) at org.apache.ignite.internal.processors.job.GridJobWorker.initialize(GridJobWorker.java:432) at org.apache.ignite.internal.processors.job.GridJobProcessor.processJobExecuteRequest(GridJobProcessor.java:1108) at org.apache.ignite.internal.processors.job.GridJobProcessor$JobExecutionListener.onMessage(GridJobProcessor.java:1894) at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1222) at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:850) at org.apache.ignite.internal.managers.communication.GridIoManager.access$2100(GridIoManager.java:108) at org.apache.ignite.internal.managers.communication.GridIoManager$7.run(GridIoManager.java:790) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: class org.apache.ignite.binary.BinaryInvalidTypeException: com.test.App at org.apache.ignite.internal.binary.BinaryContext.descriptorForTypeId(BinaryContext.java:692) at org.apache.ignite.internal.binary.BinaryUtils.doReadClass(BinaryUtils.java:1486) at org.apache.ignite.internal.binary.BinaryUtils.doReadClass(BinaryUtils.java:1424) at org.apache.ignite.internal.binary.BinaryReaderExImpl.readClass(BinaryReaderExImpl.java:370) at org.apache.ignite.internal.binary.BinaryFieldAccessor$DefaultFinalClassAccessor.readFixedType(BinaryFieldAccessor.java:828) at org.apache.ignite.internal.binary.BinaryFieldAccessor$DefaultFinalClassAccessor.read(BinaryFieldAccessor.java:639) at org.apache.ignite.internal.binary.BinaryClassDescriptor.read(BinaryClassDescriptor.java:833) at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize0(BinaryReaderExImpl.java:1498) at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize(BinaryReaderExImpl.java:1450) at org.apache.ignite.internal.binary.BinaryUtils.doReadObject(BinaryUtils.java:1640) at org.apache.ignite.internal.binary.BinaryReaderExImpl.readObject(BinaryReaderExImpl.java:1124) at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C2V2.readBinary(GridClosureProcessor.java:2073) at org.apache.ignite.internal.binary.BinaryClassDescriptor.read(BinaryClassDescriptor.java:823) at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize0(BinaryReaderExImpl.java:1498) at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize(BinaryReaderExImpl.java:1450) at org.apache.ignite.internal.binary.GridBinaryMarshaller.deserialize(GridBinaryMarshaller.java:298) at org.apache.ignite.internal.binary.BinaryMarshaller.unmarshal0(BinaryMarshaller.java:99) at org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:82) at org.apache.ignite.internal.util.IgniteUtils.unmarshal(IgniteUtils.java:9820) ... 10 more Caused by: java.lang.ClassNotFoundException: com.test.App at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.apache.ignite.internal.util.IgniteUtils.forName(IgniteUtils.java:8459) at org.apache.ignite.internal.MarshallerContextAdapter.getClass(MarshallerContextAdapter.java:185) at org.apache.ignite.internal.binary.BinaryContext.descriptorForTypeId(BinaryContext.java:683)脚本？

Answer 1

您应该在类路径中为所有点火节点添加App类或打开对等类加载[1]。

[1] https://apacheignite.readme.io/v1.9/docs/zero-deployment#peer-class-loading

Answer 2

您应该将JAR文件添加到Apache Ignite安装文件夹下的lib /文件夹中。然后你可以启动ignite.sh并自动加载你的所有类。

或者，您可以尝试按照上面的建议启用对等类加载，Ignite将自动加载类。

为什么我们需要ignite.sh脚本？

2 个答案: