参考文档
https://blog.csdn.net/u012731379/article/details/79856113
https://blog.csdn.net/u010466329/article/details/79209236
https://blog.csdn.net/laoyang360/article/details/65449407
迁移方法
通过logstash的input和output配置迁移（配置灵活适用于长期数据同步等）
通过迁移工具如elasticdump等（适用于备份一次性小量数据操作）
通过elasticsarch自带快照功能（适用于一次性迁移大量数据）
操作步骤
1、安装elasticdump
[root@VM_8_24_centos ~]# yum install nodejs npm
[root@VM_8_24_centos ~]# npm install elasticdump
/root
└─┬ elasticdump@4.4.0
├── async@2.6.1
├─┬ aws-sdk@2.400.0
│ ├─┬ buffer@4.9.1
│ │ ├── base64-js@1.3.0
│ │ └── isarray@1.0.0
│ ├── events@1.1.1
│ ├── ieee754@1.1.8
│ ├── jmespath@0.15.0
│ ├── querystring@0.2.0
│ ├── sax@1.2.1
│ ├─┬ url@0.10.3
│ │ └── punycode@1.3.2
│ ├── uuid@3.3.2
│ └─┬ xml2js@0.4.19
│ └── xmlbuilder@9.0.7
├── aws4@1.8.0
├── bytes@3.1.0
├── decimal.js@10.0.2
├── ini@1.3.5
├─┬ JSONStream@1.3.5
│ ├── jsonparse@1.3.1
│ └── through@2.3.8
├── lodash@4.17.11
├── lossless-json@1.0.3
├─┬ optimist@0.6.1
│ ├── minimist@0.0.10
│ └── wordwrap@0.0.3
├─┬ request@2.88.0
│ ├── aws-sign2@0.7.0
│ ├── caseless@0.12.0
│ ├─┬ combined-stream@1.0.7
│ │ └── delayed-stream@1.0.0
│ ├── extend@3.0.2
│ ├── forever-agent@0.6.1
│ ├─┬ form-data@2.3.3
│ │ └── asynckit@0.4.0
│ ├─┬ har-validator@5.1.3
│ │ ├─┬ ajv@6.9.1
│ │ │ ├── fast-deep-equal@2.0.1
│ │ │ ├── fast-json-stable-stringify@2.0.0
│ │ │ ├── json-schema-traverse@0.4.1
│ │ │ └─┬ uri-js@4.2.2
│ │ │ └── punycode@2.1.1
│ │ └── har-schema@2.0.0
│ ├─┬ http-signature@1.2.0
│ │ ├── assert-plus@1.0.0
│ │ ├─┬ jsprim@1.4.1
│ │ │ ├── extsprintf@1.3.0
│ │ │ ├── json-schema@0.2.3
│ │ │ └── verror@1.10.0
│ │ └─┬ sshpk@1.16.1
│ │ ├── asn1@0.2.4
│ │ ├── bcrypt-pbkdf@1.0.2
│ │ ├── dashdash@1.14.1
│ │ ├── ecc-jsbn@0.1.2
│ │ ├── getpass@0.1.7
│ │ ├── jsbn@0.1.1
│ │ ├── safer-buffer@2.1.2
│ │ └── tweetnacl@0.14.5
│ ├── is-typedarray@1.0.0
│ ├── isstream@0.1.2
│ ├── json-stringify-safe@5.0.1
│ ├─┬ mime-types@2.1.21
│ │ └── mime-db@1.37.0
│ ├── oauth-sign@0.9.0
│ ├── performance-now@2.1.0
│ ├── qs@6.5.2
│ ├── safe-buffer@5.1.2
│ ├─┬ tough-cookie@2.4.3
│ │ ├── psl@1.1.31
│ │ └── punycode@1.4.1
│ └── tunnel-agent@0.6.0
├─┬ requestretry@3.1.0
│ └── when@3.7.8
└─┬ s3-stream-upload@2.0.2
├── buffer-queue@1.0.0
└─┬ readable-stream@2.3.6
├── core-util-is@1.0.2
├── inherits@2.0.3
├── process-nextick-args@2.0.0
├── string_decoder@1.1.1
└── util-deprecate@1.0.2
npm WARN enoent ENOENT: no such file or directory, open '/root/package.json'
npm WARN root No description
npm WARN root No repository field.
npm WARN root No README data
npm WARN root No license field.
[root@VM_8_24_centos ~]# cd node_modules/elasticdump/bin
2、导出mapping
[root@VM_8_24_centos bin]# ./elasticdump --input=http://10.2.3.159:9200/reconciliation --output=http://10.2.100.24:9200/reconciliationonline --type=mapping
Mon, 11 Feb 2019 09:28:10 GMT | starting dump
Mon, 11 Feb 2019 09:28:10 GMT | got 1 objects from source elasticsearch (offset: 0)
Mon, 11 Feb 2019 09:28:16 GMT | sent 1 objects to destination elasticsearch, wrote 1
Mon, 11 Feb 2019 09:28:16 GMT | got 0 objects from source elasticsearch (offset: 1)
Mon, 11 Feb 2019 09:28:16 GMT | Total Writes: 1
Mon, 11 Feb 2019 09:28:16 GMT | dump complete
[root@VM_8_24_centos bin]# curl 10.2.100.24:9200/_cat/indices|grep reconciliation
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
43 32578 43 14037 0 0 5694 0 0:00:05 0:00:02 0:00:03 5694yellow open reconciliationonline KnZrsU-7TmWWBs-1-dBRrw 5 1 0 0 1.1kb 1.1kb
3、导出data
[root@VM_8_24_centos bin]# ./elasticdump --input=http://10.2.3.159:9200/reconciliation --output=http://10.2.100.24:9200/reconciliationonline --type=data
Mon, 11 Feb 2019 09:28:58 GMT | starting dump
Mon, 11 Feb 2019 09:28:58 GMT | got 100 objects from source elasticsearch (offset: 0)
Mon, 11 Feb 2019 09:29:19 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:29:19 GMT | got 100 objects from source elasticsearch (offset: 100)
Mon, 11 Feb 2019 09:29:51 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:29:51 GMT | got 100 objects from source elasticsearch (offset: 200)
Mon, 11 Feb 2019 09:30:13 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:30:13 GMT | got 100 objects from source elasticsearch (offset: 300)
Mon, 11 Feb 2019 09:30:39 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:30:39 GMT | got 100 objects from source elasticsearch (offset: 400)
Mon, 11 Feb 2019 09:31:53 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:31:53 GMT | got 100 objects from source elasticsearch (offset: 500)
Mon, 11 Feb 2019 09:32:28 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:32:28 GMT | got 100 objects from source elasticsearch (offset: 600)
Mon, 11 Feb 2019 09:33:24 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:33:24 GMT | got 100 objects from source elasticsearch (offset: 700)
Mon, 11 Feb 2019 09:34:19 GMT | sent 100 objects to destination elasticsearch, wrote 100
Mon, 11 Feb 2019 09:34:19 GMT | got 7 objects from source elasticsearch (offset: 800)
Mon, 11 Feb 2019 09:34:47 GMT | sent 7 objects to destination elasticsearch, wrote 7
Mon, 11 Feb 2019 09:34:47 GMT | got 0 objects from source elasticsearch (offset: 807)
Mon, 11 Feb 2019 09:34:47 GMT | Total Writes: 807
Mon, 11 Feb 2019 09:34:47 GMT | dump complete
[root@VM_8_24_centos bin]# curl 10.2.100.24:9200/_cat/indices|grep reconciliationonline
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- 0:00:16 --:--:-- 0yellow open reconciliationonline KnZrsU-7TmWWBs-1-dBRrw 5 1 807 0 4.3mb 4.3mb
100 32578 100 32578 0 0 2010 0 0:00:16 0:00:16 --:--:-- 7769
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