为 Open Distro 安装插件

Question

Amazon Elasticsearch Service 提供 k 最近邻 (k-NN) 搜索，可以通过相似用例增强搜索。

https://aws.amazon.com/about-aws/whats-new/2020/03/build-k-nearest-neighbor-similarity-search-engine-with-amazon-elasticsearch-service/

我尝试了我在这里找到的官方代码...

https://github.com/opendistro-for-elasticsearch/k-NN

PUT /myindex
{
    "settings" : {
        "index": {
            "knn": true
        }
    },
    "mappings": {
        "properties": {
            "my_vector1": {
                "type": "knn_vector",
                "dimension": 2
            }, 
            "my_vector2": {
                "type": "knn_vector",
                "dimension": 4
            }, 
            "my_vector3": {
                "type": "knn_vector",
                "dimension": 8
            } 
        }
    }
}

出现此错误：

"unknown setting [index.knn] please check that any required plugins are installed, or check the breaking changes documentation for removed settings"

如何检查我的 Elastic 安装是否支持此功能？

Answer 1

不支持

t2.small 和 t2.medium 实例类型。（文档中的任何地方都没有提到它。）它在选择 r5.large 实例类型时按预期工作。

为 Open Distro 安装插件

install plugin for Open Distro

elasticsearch-opendistro