Delete_by_query冲突继续在带有netty4的ElasticSearch 5.1.1中不起作用

我在5.1.1版本中编写了自己的内存中ElasticSearch服务器 . 它适用于添加文档但无法删除 .

Maven依赖：

<dependency>
        <groupId>org.elasticsearch</groupId>
        <artifactId>elasticsearch</artifactId>
        <version>5.1.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.elasticsearch.plugin</groupId>
        <artifactId>transport-netty4-client</artifactId>
        <version>5.1.1</version>
        <scope>test</scope>
    </dependency>

节点的设置 Map ：

settingsMap.put("node.name", nodeName);
    settingsMap.put("path.conf", "target");
    settingsMap.put("path.data", "target");
    settingsMap.put("path.logs", "target");
    settingsMap.put("path.home", "target");
    settingsMap.put("http.type", "netty4");
    settingsMap.put("http.port", httpPort);
    settingsMap.put("transport.tcp.port", httpTransportPort);
    settingsMap.put("transport.type", "netty4");
    settingsMap.put("action.auto_create_index", "false");

一次删除多个文档的方法：

public boolean deleteType() throws IOException, CustomResponseException {
    String query = "{\n" + "  \"query\": {\n" + "    \"match_all\": {}\n" + "  }\n" + "}";
    HttpEntity entity = new NStringEntity(query, ContentType.APPLICATION_JSON);
    Response indexResponse = restClient.performRequest("POST",
            "/" + this.getIndex() + "/" + this.getType() + "/_delete_by_query?conflicts=proceed",
            Collections.<String, String>emptyMap(), entity);
    return processStatusCode(indexResponse.getStatusLine()) == 200;
}

当我运行测试时，我收到错误：

org.elasticsearch.client.ResponseException：POST http：// localhost：9205 / testindexer / indexer / _delete_by_query？conflicts = proceed：HTTP / 1.1 400 Bad Request {“error”：{“root_cause”：[{“type”： “illegal_argument_exception”，“reason”：“request [/ testindexer / indexer / _delete_by_query]包含无法识别的参数：[conflicts]”}]，“type”：“illegal_argument_exception”，“reason”：“request [/ testindexer / indexer / _delete_by_query ]包含无法识别的参数：[conflicts]“}，”status“：400}

另外，当我在没有冲突的情况下运行它时，我得到的是创建文档的答案 . 为什么它的工作方式与此版本的文档不同？

这是我的节点的状态：

{
  "name" : "indexernode",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "trP6UQg1SMKVyfR0qTEjYw",
  "version" : {
    "number" : "5.1.1",
    "build_hash" : "5395e21",
    "build_date" : "2016-12-06T12:36:15.409Z",
    "build_snapshot" : false,
    "lucene_version" : "6.3.0"
 },
 "tagline" : "You Know, for Search"
}