Elasticsearch 认证模拟题

Elasticsearch 认证模拟题 - 12

本文主要是介绍Elasticsearch 认证模拟题 - 12，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

一、题目

在集群上有 task2 索引，请重建它到 task2_new 索引上，并满足以下要求：

task2 索引的 a 字段包含有关键字 Yoo-Hoo 和 YooHoo，不管搜索 Yoo-Hoo 还是YooHoo 它们的结果应该一样
task2_new 和 task2 的 mapping 应该一样

POST task2/_bulk
{"index":{}}
{"a":"Yoo-Hoo"}
{"index":{}}
{"a":"YooHoo"}

1.1 考点

分词器

1.2 答案

# 创建索引结构，自定义分词器
PUT task2_new
{"settings": {"analysis": {"analyzer": {"my_custom_analyzer": {"type": "custom","tokenizer": "standard","char_filter": ["remove-"],"filter": []}},"char_filter": {"remove-": {"type": "mapping","mappings": ["- => "]}}}},"mappings": {"properties": {"a":{"type": "text","analyzer": "my_custom_analyzer"}}}
}# 写入数据
POST task2_new/_bulk
{"index":{}}
{"a":"Yoo-Hoo"}
{"index":{}}
{"a":"YooHoo"}# 验证结果
GET task2_new/_search
{"query": {"match": {"a": "YooHoo"}}
}
GET task2_new/_search
{"query": {"match": {"a": "Yoo-Hoo"}}
}

二、题目

earthquakes 索引中包含了过去11个月的地震信息，请通过一句查询，获取以下信息

过去11个月，每个月的平均地震等级(magnitude)
过去11个月里，平均地震等级最高的一个月及其平均地震等级
搜索不能返回任何文档

# 创建索引
PUT earthquakes
{"settings": {"number_of_replicas": 0},"mappings": {"properties": {"timestamp": {"type": "date","format": "yyyy-MM-dd HH:mm:ss"},"magnitude": {"type": "float"}}}
}# 导入数据
POST earthquakes/_bulk
{"index":{}}
{"timestamp":"2012-01-01 12:12:12", "magnitude":4.56}
{"index":{}}
{"timestamp":"2012-01-01 15:12:12", "magnitude":6.46}
{"index":{}}
{"timestamp":"2012-02-02 13:12:12", "magnitude":4}
{"index":{}}
{"timestamp":"2012-03-02 13:12:12", "magnitude":6}
{"index":{}}
{"timestamp":"1967-03-02 13:12:12", "magnitude":6}

2.1 考点

分桶聚类
指标聚类
管道聚类

2.2 答案

POST earthquakes/_search
{"size": 0,"aggs": {"every_month": {"date_histogram": {"field": "timestamp","calendar_interval": "month","format": "yyyy-MM-dd"},"aggs": {"avg_magnitude": {"avg": {"field": "magnitude"}}}},"max_magnitude": {"max_bucket": {"buckets_path": "every_month>avg_magnitude" }}}
}