CentOS源码编译指南-优快云博客

本文链接：https://blog.youkuaiyun.com/lucasmaluping/article/details/102942023

本文详细介绍了在CentOS7.x环境下进行Ambari2.4和watchman的源码编译过程，同时提供了升级gcc的方法，以及解决libstdc++.so.6问题的方案。还分享了vmware虚拟机复制技巧，CentOS更换国内yum源的步骤，以及如何在CentOS下搭建Ember开发环境。最后，探讨了Elasticsearch查询关键字高亮的实现。

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数据源：

[es@node1 ~]$ vi  website.json 
[es@node1 ~]$ cat website.json
{ "index":{ "_index": "website", "_type": "blog", "_id": "1" }}
{ "title": "Ambari源码编译","author":"小明","postdate":"2016-12-21","abstract":"CentOS7.x下的Ambari2.4源码编译","url":"http://url.cn/53788351"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "2" }}
{ "title": "watchman源码编译","author":"小明","postdate":"2016-12-23","abstract":"CentOS7.x的watchman源码编译","url":"http://url.cn/53844169"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "3" }}
{ "title": "CentOS升级gcc","author":"小明","postdate":"2016-12-25","abstract":"CentOS升级gcc","url":"http://url.cn/53868915"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "4" }}
{ "title": "vmware复制虚拟机","author":"小明","postdate":"2016-12-29","abstract":"vmware复制虚拟机","url":"http://url.cn/53946664"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "5" }}
{ "title": "libstdc++.so.6","author":"小明","postdate":"2016-12-30","abstract":"libstdc++.so.6问题解决","url":"http://url.cn/53946911"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "6" }}
{ "title": "CentOS更换国内yum源","author":"小明","postdate":"2016-12-30","abstract":"CentOS更换国内yum源","url":"http://url.cn/53946911"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "7" }}
{ "title": "搭建Ember开发环境","author":"小明","postdate":"2016-12-30","abstract":"CentOS下搭建Ember开发环境","url":"http://url.cn/53947507"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "8" }}
{ "title": "es高亮","author":"小明","postdate":"2017-01-03","abstract":"Elasticsearch查询关键字高亮","url":"http://url/53991802"}
{ "index":{ "_index": "website", "_type": "blog", "_id": "9" }}
{ "title": "to be or not to be","author":"somebody","postdate":"2018-01-03","abstract":"to be or not to be,that is the question","url":"http://url/63991802"}

创建索引：

PUT website
{
  "settings": {
    "number_of_replicas": 1,
    "number_of_shards": 5
  },
  "mappings": {
    "blog":{
      "properties": {
        "title":{
          "type":"text",
          "analyzer": "ik_max_word"
        },
        "author":{
          "type":"text"
        },
        "postdate":{
          "type":"date",
          "format": "yyyy-MM-dd"
        },
        "abstract":{
          "type":"text",
          "analyzer": "ik_max_word"
        },
        "url":{
          "type":"text"
        }
      }
    }  
  }
}

批量导入

[es@node1 ~]$ curl -XPOST "http://node1:9200/_bulk?pretty" -H "Content-Type: application/json;charset=UTF-8" --data-binary @website.json

term查询

GET website/_search
{
  "query": {
    "term": {
        "title": "vmware"
    }
  }
}

分页

GET website/_search
{
  "from":0,
  "size":3,
  "query": {
    "match_all": {}
  }
}

过滤字段

GET website/_search
{
  "_source": ["title","author"], 
  "query": {
    "term": {
        "title": "centos"
    }
  }
}

显示version

GET website/_search
{
  "_source": ["title"], 
  "version": true, 
  "query": {
    "term": {
        "title": "centos"
    }
  }
}

评分过滤

GET website/_search
{
  "min_score":"0.5",
  "query": {
    "term": {
        "title": "centos"
    }
  }
}

高亮关键字

GET website/_search
{
  "query": {
    "term": {
        "title": "centos"
    }
  },
  "highlight": {
    "fields": {
      "title": {}
    }
  }
}

检索（一）