# 使用kibana修改数据流索引mapping

## 修改索引模板mapping

```json
{
    "dynamic_templates": [],
    "properties": {
      "@timestamp": {
        "type": "date",
        "format": "strict_date_optional_time||epoch_second"
      },
      ...
      "link": {
        "type": "keyword",
        "normalizer": "lowercase"
      }
    }
}
```

## 数据流滚动

打 Kibana dev tools ，手动触发滚动数据流索引

```sh
POST web-rss-data/_rollover
```

结果显示如下，创建新索引为`.ds-web-rss-data-2023.10.31-000004`

```json
{
  "acknowledged": true,
  "shards_acknowledged": true,
  "old_index": ".ds-web-rss-data-2023.10.31-000002",
  "new_index": ".ds-web-rss-data-2023.10.31-000004",
  "rolled_over": true,
  "dry_run": false,
  "conditions": {}
}
```

数据流滚动后，新创建的index 使用新的mapping设置

## 使用reindex把旧索引数据导入到数据流

因为是reindex 导入到数据流所以`op_type` 为 `create`

```json
POST _reindex
{
  "source": {
    "index": ".ds-web-rss-data-2023.10.31-000002"
  },
  "dest": {
    "index": "web-rss-data",
    "op_type": "create"
  }
}
```

返回类似这样数据

```json
{
  "took": 48,
  "timed_out": false,
  "total": 61,
  "updated": 0,
  "created": 61,
  "deleted": 0,
  "batches": 1,
  "version_conflicts": 0,
  "noops": 0,
  "retries": {
    "bulk": 0,
    "search": 0
  },
  "throttled_millis": 0,
  "requests_per_second": -1,
  "throttled_until_millis": 0,
  "failures": []
}
```

## 删除旧索引

**注意：删除前从Kibana 查看该索引是否为旧mapping, 确认旧索引的数据在新索引已经存在后，再删除旧索引**

### 删除旧索引

```sh
DELETE .ds-web-rss-data-2023.10.31-000002
```

返回类似这样数据

```
{
  "acknowledged": true
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://liujinye.gitbook.io/openshift-docs/elasticsearch/shi-yong-kibana-xiu-gai-shu-ju-liu-suo-yin-mapping.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.