elasticsearch - 如何在嵌入式ES 2.3.3中使用DeleteByQuery插件

Question

我已经以嵌入式方式运行了ES 2.3.3，但是由于所描述的异常，我无法调用DeleteByQuery操作。我将DeleteByQuery插件添加到我的类路径中，还为我未设置plugin.types设置，但仍然无法正常工作。

我的Maven依赖项:
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>2.3.3</version>
</dependency>
<dependency>
<groupId>org.elasticsearch.plugin</groupId>
<artifactId>delete-by-query</artifactId>
<version>2.3.3</version>
</dependency>

我的ES设置:

Settings elasticsearchSettings = Settings.settingsBuilder()
.put("threadpool.index.queue_size", -1)
.put("path.home", options.getDirectory())
.put("plugin.types", DeleteByQueryPlugin.class.getName())
.build();

NodeBuilder builder = NodeBuilder.nodeBuilder();
node = builder.local(true).settings(elasticsearchSettings).node();

调用用于截断索引的操作。

DeleteByQueryRequestBuilder builder = new DeleteByQueryRequestBuilder(node.client(), DeleteByQueryAction.INSTANCE);
            builder.setIndices(indexName).setQuery(QueryBuilders.matchAllQuery()).execute().addListener(new ActionListener<DeleteByQueryResponse>() {
                public void onResponse(DeleteByQueryResponse response) {
                    if (log.isDebugEnabled()) {
                        log.debug("Deleted index {" + indexName + "}. Duration " + (System.currentTimeMillis() - start) + "[ms]");
                    }
                    sub.onCompleted();
                };

                @Override
                public void onFailure(Throwable e) {
                    log.error("Deleting index {" + indexName + "} failed. Duration " + (System.currentTimeMillis() - start) + "[ms]", e);
                    sub.onError(e);
                }
            });

我看到的异常:

Caused by: java.lang.IllegalStateException: failed to find action [org.elasticsearch.action.deletebyquery.DeleteByQueryAction@7c1ed3a2] to execute
    at org.elasticsearch.client.node.NodeClient.doExecute(NodeClient.java:56) ~[elasticsearch-2.3.3.jar:2.3.3]
    at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:359) ~[elasticsearch-2.3.3.jar:2.3.3]

Answer 1

我注意到“节点”构建器使用空插件列表调用了节点构造器。我扩展了Node类，以调用此( protected )构造函数。

public class ESNode extends Node {

    protected ESNode(Settings settings, Collection<Class<? extends Plugin>> plugins) {
        super(InternalSettingsPreparer.prepareEnvironment(settings, null), Version.CURRENT, plugins);
    }
}

使用ESNode加载了所有需要的插件。

    Set<Class<? extends Plugin>> classpathPlugins = new HashSet<>();
    classpathPlugins.add(DeleteByQueryPlugin.class);
    node = new ESNode(settings, classpathPlugins).start();

这可能不是理想的，但到目前为止，它工作正常。