如@Bastian所述，问题是传输模块不在类路径中。该解决方案已经存在于es- hadoop嵌入式es实现中。
private static class PluginConfigurableNode extends Node {
public PluginConfigurableNode(Settings settings, Collection<Class<? extends Plugin>> classpathPlugins) {
super(InternalSettingsPreparer.prepareEnvironment(settings, null), classpathPlugins);
}
}
我们可以给netty3作为插件，如下所示。然后一切正常。
Collection<Class<? extends Plugin>> plugins = Arrays.asList(Netty3Plugin.class);
Node node = new PluginConfigurableNode(elasticsearchSetting, plugins).start();
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