标签 elasticsearch 下的文章

使用multipass 安装

sudo snap install multipass

安装ubuntu20.04

multipass launch --name ubuntu

multipass list

Name State IPv4 Image
ubuntu Running 10.16.232.162 Ubuntu 20.04 LTS

进入虚拟机

multipass shell ubuntu
uname -a

Linux ubuntu 5.4.0-99-generic #112-Ubuntu SMP Thu Feb 3 13:50:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

sudo apt update && sudo apt upgrade

Install Java

sudo apt install openjdk-8-jdk

Verify the installation by checking the java version

java -version

openjdk version "1.8.0_312"
OpenJDK Runtime Environment (build 1.8.0_312-8u312-b07-0ubuntu1~20.04-b07)
OpenJDK 64-Bit Server VM (build 25.312-b07, mixed mode)

Install and configure Elasticsearch

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -

Create the repository file using the command

echo "deb https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-8.x.list
sudo apt update && sudo apt install elasticsearch

注意会生成用户密码，类似这样。

--------------------------- Security autoconfiguration information ------------------------------

Authentication and authorization are enabled.
TLS for the transport and HTTP layers is enabled and configured.

The generated password for the elastic built-in superuser is : wynW6PEAcpowTdai89*F

If this node should join an existing cluster, you can reconfigure this with
'/usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token <token-here>'
after creating an enrollment token on your existing cluster.

You can complete the following actions at any time:

Reset the password of the elastic built-in superuser with 
'/usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic'.

The default configuration file of elasticsearch is located at /etc/elasticsearch/elasticsearch.yml . Use any text editor and uncomment the lines:

network.host: localhost
http.port: 9200

Start and enable elasticsearch

sudo systemctl start elasticsearch
sudo systemctl enable elasticsearch

Run the following command to view Elasticsearch status and details

curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic https://localhost:9200

Enter host password for user 'elastic':

{
  "name" : "ubuntu",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "tAw89cXJRmuth97Tm2bxcA",
  "version" : {
    "number" : "8.0.0",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "1b6a7ece17463df5ff54a3e1302d825889aa1161",
    "build_date" : "2022-02-03T16:47:57.507843096Z",
    "build_snapshot" : false,
    "lucene_version" : "9.0.0",
    "minimum_wire_compatibility_version" : "7.17.0",
    "minimum_index_compatibility_version" : "7.0.0"
  },
  "tagline" : "You Know, for Search"
}

或者：

curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic:wynW6PEAcpowTdai89*F https://localhost:9200
{
  "name" : "ubuntu",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "tAw89cXJRmuth97Tm2bxcA",
  "version" : {
    "number" : "8.0.0",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "1b6a7ece17463df5ff54a3e1302d825889aa1161",
    "build_date" : "2022-02-03T16:47:57.507843096Z",
    "build_snapshot" : false,
    "lucene_version" : "9.0.0",
    "minimum_wire_compatibility_version" : "7.17.0",
    "minimum_index_compatibility_version" : "7.0.0"
  },
  "tagline" : "You Know, for Search"
}

计算集群中文档的数量

curl --cacert /etc/elasticsearch/certs/http_ca.crt -H "Content-Type: application/json"  -u elastic:DCukiJJUAq4u7cEcDyHq  -XGET 'https://localhost:9200/_count?pretty' -d '

返回值：

{
  "count" : 0,
  "_shards" : {
    "total" : 0,
    "successful" : 0,
    "skipped" : 0,
    "failed" : 0
  }
}

创建第一个索引

curl --cacert /etc/elasticsearch/certs/http_ca.crt -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -X PUT https://localhost:9200/my-index-000001?pretty
{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "my-index-000001"
}

查看是否成功创建索引

curl -k -u elastic:DCukiJJUAq4u7cEcDyHq "https://localhost:9200/_cat/indices?v"

health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
yellow open my-index-000001 W0g1xmavRciKFTbBljq8Ng 1 1 0 0 225b 225b

添加数据

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -X POST -d'{"@timestamp": "2099-05-06T16:21:15.000Z","event": {"original": "192.0.2.42 - - [06/May/2099:16:21:15 +0000] \"GET /images/bg.jpg HTTP/1.0\" 200 24736"}}' "https://localhost:9200/logs-my_app-default/_doc?pretty"

结果：

{
  "_index" : ".ds-logs-my_app-default-2022.02.28-000001",
  "_id" : "giyiP38BLdok8EvkSQ4j",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 3,
  "_primary_term" : 1
}

命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -X POST -d'{"@timestamp": "2099-05-06T16:21:15.000Z","event": {"original": "192.0.2.42 - - [06/May/2099:16:21:15 +0000] \"GET /images/bg.jpg HTTP/1.0\" 200 24736"}}' "https://localhost:9200/my-index-000001/_doc?pretty"

结果

{
  "_index" : "my-index-000001",
  "_id" : "hCyiP38BLdok8Evkzg7X",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 1,
  "_primary_term" : 1
}

创建新的索引(index)和类别(type)
Create index命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -XPUT "https://localhost:9200/i1"

结果

{"acknowledged":true,"shards_acknowledged":true,"index":"i1"}

命令：

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -XPUT "https://localhost:9200/i2?pretty"

结果：

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "i2"
}

命令：

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq "https://localhost:9200/i1/_mapping?pretty"

结果：

{
  "i1" : {
    "mappings" : { }
  }
}

ElasticSearch8.0.0已经移除了对type的支持，不再使用type了。
命令

curl -k -u elastic:DCukiJJUAq4u7cEcDyHq -H "Content-Type: application/json" -XPUT "https://localhost:9200/i3?pretty" -d '{"mappings": {"properties": {"field3": {"type": "text"},"field4": {"type": "text"}}}}'

结果

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "i3"
}

命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq "https://localhost:9200/i3/_mapping?pretty"

结果

{
  "i3" : {
    "mappings" : {
      "properties" : {
        "field3" : {
          "type" : "text"
        },
        "field4" : {
          "type" : "text"
        }
      }
    }
  }
}

参考链接：https://www.elastic.co/cn/blog/moving-from-types-to-typeless-apis-in-elasticsearch-7-0
添加记录命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -XPUT "https://localhost:9200/i3/_doc/1" -d '{"field3":"3", "field4":"4"}'

结果

{"_index":"i3","_id":"1","_version":1,"result":"created","_shards":{"total":2,"successful":1,"failed":0},"_seq_no":0,"_primary_term":1}

再次运行命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq -XPUT "https://localhost:9200/i3/_doc/1?pretty" -d '{"field3":"3", "field4":"4"}'

结果：

{
  "_index" : "i3",
  "_id" : "1",
  "_version" : 2,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 1,
  "_primary_term" : 1
}

查询当前记录命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq "https://localhost:9200/i3/_doc/1?pretty"

结果

{
  "_index" : "i3",
  "_id" : "1",
  "_version" : 2,
  "_seq_no" : 1,
  "_primary_term" : 1,
  "found" : true,
  "_source" : {
    "field3" : "3",
    "field4" : "4"
  }
}

查询命令

curl -k -H "Content-Type: application/json" -u elastic:DCukiJJUAq4u7cEcDyHq "https://localhost:9200/i3/_search?pretty"

结果

{
  "took" : 1008,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "i3",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "field3" : "3",
          "field4" : "4"
        }
      }
    ]
  }
}

标签 elasticsearch 下的文章

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ubuntu 20 安装 elasticsearch8.0.0

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