Gridgain序列化异常

Question

我第一次尝试gridgain，遇到了一些序列化的问题。在尝试使用GridClosure在不同节点上投影作业时，我得到了封送处理异常。在调试时，故障似乎总是发生在Apache对象的log4j上。我很难避免记录器，并想知道这是否是一个已知的问题，或者我可以以某种方式解决这个问题。我将网格配置的requireSerializable设置为false。

Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream.writeSerializable(GridOptimizedObjectOutputStream.java:292)
    ... 45 more
Caused by: java.io.IOException: java.lang.reflect.InvocationTargetException
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream.writeSerializable(GridOptimizedObjectOutputStream.java:295)
    at org.gridgain.grid.marshaller.optimized.GridOptimizedClassDescriptor.write(GridOptimizedClassDescriptor.java:849)
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream.writeObject0(GridOptimizedObjectOutputStream.java:198)
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream.writeObjectOverride(GridOptimizedObjectOutputStream.java:129)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
    at java.util.Hashtable.writeObject(Hashtable.java:988)
    ... 50 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream.writeSerializable(GridOptimizedObjectOutputStream.java:292)
    ... 55 more
Caused by: java.lang.NullPointerException
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream$PutFieldImpl.value(GridOptimizedObjectOutputStream.java:1003)
    at org.gridgain.grid.marshaller.optimized.GridOptimizedObjectOutputStream$PutFieldImpl.put(GridOptimizedObjectOutputStream.java:965)
    at java.util.Vector.writeObject(Vector.java:1068)
    ... 60 more

Answer 1

你能让Log4J对象成为静态的，这样它就不会影响序列化了吗？如果没有，GridGain允许您将记录器资源注入到几乎任何东西中，包括闭包。您可以在GridConfiguration中将GridLogger配置为GridLog4jLogger。

下面是一个示例：

GridRunnable run = new GridRunnable() {
    // Can be any logger, including GridLog4jLogger.
    @GridLoggerResource
    GridLogger log;

    @Override public void run() {
        log.info("Hello");

        // Do some logic.
    }
}

或

// Can be any logger, including GridLog4jLogger
final GridLogger log = grid.log();

GridRunnable run = new GridRunnable() {
    @Override public void run() {
        log.info("Hello");

        // Do some logic.
    }
}

有关详细信息，请参阅GridGain文档中的Resource Injection页面。