同步数据库到elasticsearch

末蓝、 2022-07-13 23:59 280阅读 0赞

elasticsearch-jdbc同步数据库到elasticsearch

一、elasticsearch-jdbc的介绍  
同步数据库到elasticSearch的插件elasticsearch-jdbc  
之前的名称是elasticsearch-river-jdbc

下载地址：  
[http://xbib.org/repository/org/xbib/elasticsearch/importer/elasticsearch-jdbc/][http_xbib.org_repository_org_xbib_elasticsearch_importer_elasticsearch-jdbc]/elasticsearch-jdbc--dist.zip  
下载时将替换成相应的版本即可。  
如：  
[http://xbib.org/repository/org/xbib/elasticsearch/importer/elasticsearch-jdbc/2.3.2.0/elasticsearch-jdbc-2.3.2.0-dist.zip][http_xbib.org_repository_org_xbib_elasticsearch_importer_elasticsearch-jdbc_2.3.2.0_elasticsearch-jdbc-2.3.2.0-dist.zip]

附：源码地址  
[https://github.com/jprante/elasticsearch-jdbc][https_github.com_jprante_elasticsearch-jdbc]

二、elasticsearch-jdbc的使用  
这里只介绍使用elasticsearch-jdbc同步mssql数据到elasticsearch中

1.创建索引  
curl -XPUT ‘[http://localhost:9200/baikeDb][http_localhost_9200_baikeDb]’

2.创建数据表与索引映射

curl -XPUT 'http://localhost:9200/baikeDb/user/_mapping' -d '
    {
        "user": {
            "properties": {
                "id": {
                    "type": "string",
                    "store": "yes"
                },
                "name": {
                    "type": "string",
                    "store": "yes"
                },
                "login_name": {
                    "type": "string",
                    "store": "yes"
                }
            }
        }
    }'

3.运行river同步数据

curl -XPUT 'http://localhost:9200/baikeDb/_meta' -d '{
        "type": "jdbc",
        "jdbc": {
            "url": "jdbc:sqlserver://localhost:1433;databaseName=baikeDb",
            "user": "sa",
            "password": "123456",
            "sql": "select id as _id,name,login_name from user",
            "index": "baikeDb",
            "type": "user",
            "bulk_size": 100,
            "max_bulk_requests": 30,
            "bulk_timeout": "10s",
            "flush_interval": "5s",
            "schedule": "0 0-59 0-23 ? * *"
        }
    }'

4.增量更新索引  
增量更新，表需要维护时间戳，发现时间戳更新的列需要更新

curl -XPUT 'http://localhost:9200/baikeDb/_meta' -d '{
        "type": "jdbc",
        "jdbc": {
            "url": "jdbc:sqlserver://localhost:1433;databaseName=baikeDb",
            "user": "sa",
            "password": "123456",
            "sql": [
                {
                    "statement": "select id as _id,name,login_name from user where mytimestamp > ?",
                    "parameter": [
                        "$river.state.last_active_begin"
                    ]
                }
            ],
            "index": "baikeDb",
            "type": "user",
            "bulk_size": 100,
            "max_bulk_requests": 30,
            "bulk_timeout": "10s",
            "flush_interval": "5s",
            "schedule": "0 0-59 0-23 ? * *"
        }
    }'

5.删除索引

curl -XDELETE ‘localhost:9200/baikeDb’

参考：  
[http://blog.csdn.net/kingice1014/article/details/53492773][http_blog.csdn.net_kingice1014_article_details_53492773]

[http_xbib.org_repository_org_xbib_elasticsearch_importer_elasticsearch-jdbc]: http://xbib.org/repository/org/xbib/elasticsearch/importer/elasticsearch-jdbc/
[http_xbib.org_repository_org_xbib_elasticsearch_importer_elasticsearch-jdbc_2.3.2.0_elasticsearch-jdbc-2.3.2.0-dist.zip]: http://xbib.org/repository/org/xbib/elasticsearch/importer/elasticsearch-jdbc/2.3.2.0/elasticsearch-jdbc-2.3.2.0-dist.zip
[https_github.com_jprante_elasticsearch-jdbc]: https://github.com/jprante/elasticsearch-jdbc
[http_localhost_9200_baikeDb]: http://localhost:9200/baikeDb
[http_blog.csdn.net_kingice1014_article_details_53492773]: http://blog.csdn.net/kingice1014/article/details/53492773