第七篇 elasticsearch 链接mysql不会更新

这是我键的索引

"settings":{
        "number_of_shards":3,
        "number_of_replicas":2
    },
    "mappings":{
        "foods":{
            "properties":{
                "goodsname":{
                    "type":"keyword"
                },
                "goodsprice":{
                    "type":"double"
                },
                "goodsnum":{
                    "type":"integer"
                },
                "goodspath":{
                    "type":"text"
                },
                "shopname":{
                    "type":"completion",
                    "analyzer":"simple",
                    "search_analyzer":"simple",
                    "preserve_separators":true
                },
                "updtime":{
                    "type":"date"
                },
                "goodsrole":{
                    "type":"integer"
                },
                "createtime":{
                    "type":"date"
                },
                "uid":{
                    "type":"integer"
                },
                "goodstype":{
                    "type":"text"
                },
                "shopid":{
                    "type":"integer"
                }
            }
        }
    }
}

2.插入的工具用的是postman

1、版本介绍


Elasticsearch:
https://www.elastic.co/products/elasticsearch
版本:6.1

Logstash:
https://www.elastic.co/products/logstash
版本:2.4.0
所需要的安装文件,到官网下载即可。

还需要对应的数据库JDBC,这里使用的是mysql-connector-java-5.1.39.jar
去mysql官网下载
Elasticsearch配置请参照之前的博客,不在这里介绍了。

、Logstash安装配置

Logstash直接下载后解压即可,主要是配置文件的内容编写。

安装logstash-input-jdbc的Logstash插件,用来进行mysql、oracle等的数据同步。

linux

[zsz@VS-zsz logstash-2.4.0]$ bin/plugin install logstash-input-jdbc
The use of bin/plugin is deprecated and will be removed in a feature release. Please use bin/logstash-plugin.
Validating logstash-input-jdbc
Installing logstash-input-jdbc
Installation successful

window下载后解压就可以

配置文件(自行指定文件名,这里命名为logstash-mysql.conf ):

linux打开[zsz@VS-zsz conf]$ vi logstash-mysql.conf 

window新建logstash-mysql.conf文件在bin文件夹下

复制下面的

input {
  jdbc {
    jdbc_driver_library => "/usr/local/logstash-2.4.0/mysql-connector-java-5.1.39.jar"
    jdbc_driver_class => "com.mysql.jdbc.Driver"
    jdbc_connection_string => "jdbc:mysql://192.168.****:3306/******?characterEncoding=UTF-8&useSSL=false"
    jdbc_user => "*****"
    jdbc_password => "*********"
    statement => "SELECT * FROM news limit 0,1"
    jdbc_paging_enabled => "true"
    jdbc_page_size => "50000"
    schedule => "* * * * *"
  }
}

filter {
   json {
        source => "message"
        remove_field => ["message"]
    }
}

output {
  stdout {
    codec => rubydebug
  }
  elasticsearch {
    hosts => "192.168.****"
    index => "myindex"
  }        
} 
 

启动Logstash在bin问价夹下执行logstash -f /usr/local/logstash-2.4.0/conf/logstash-mysql.conf
下面是linux的

[zsz@VS-zsz conf]$ /usr/local/logstash-2.4.0/bin/logstash -f /usr/local/logstash-2.4.0/conf/logstash-mysql.conf 

window在bin文件夹线执行logstash -f /usr/local/logstash-2.4.0/conf/logstash-mysql.conf 

这个进程会一直执行下去,因为设置的schedule => "* * * * *"(每分钟执行一次),如果想结束进程需要kill掉进程。


查看elasticsearch是否同步数据成功
[root@VS-zsz conf]# curl '192.168.31.79:9200/_cat/indices?v'
health status index pri rep docs.count docs.deleted store.size pri.store.size
green open test 5 1 0 0 1.5kb 795b
green open myindex 5 1 494 0 924.7kb 457.6kb
[root@VS-zsz conf]# curl '192.168.31.78:9200/_cat/indices?v'
health status index pri rep docs.count docs.deleted store.size pri.store.size
green open test 5 1 0 0 1.5kb 795b
green open myindex 5 1 494 0 925kb 457.8kb
[root@VS-zsz conf]# curl '192.168.31.79:9200/_cat/indices?v'
health status index pri rep docs.count docs.deleted store.size pri.store.size
green open test 5 1 0 0 1.5kb 795b
green open myindex 5 1 494 0 925kb 457.8kb

说明数据成功导入,而且在设置了定时任务的情况下, myindex索引的容量不断增加。

5、常见错误:
(1)Pipeline aborted due to error {:exception=>"LogStash::ConfigurationError", :backtrace=>..................stopping pipeline {:id=>"main"}
原因:logstash-mysql.conf 文件配置错误,对于>=2.*的版本, elasticsearch 的参数名应为hosts,如果设置为host则会报错。此处应该是可以配置多个数据源。

6.介绍配置文件(自行指定文件名,这里命名为logstash-mysql.conf ):
 input {
    stdin {
    
    }
    jdbc {
        # 数据库地址  端口  数据库名
        jdbc_connection_string => "jdbc:mysql://localhost:3306/shen"
        # 数据库用户名      
        jdbc_user => "root"
        # 数据库密码
        jdbc_password => "rootroot"
        # mysql java驱动地址 
        jdbc_driver_library => "/usr/share/logstash/mysql-connector-java-5.1.43-bin.jar"
        # 驱动类的名称
        jdbc_driver_class => "com.mysql.jdbc.Driver"
        
        jdbc_paging_enabled => "true"
        
        jdbc_page_size => "50000"
        statement => "SELECT * FROM TABLE"
        # sql 语句文件,对于复杂的查询,可以放在文件中。
        # statement_filepath => "filename.sql"
        # 设置监听间隔,语法与Linux系统Cron相同
        schedule => "* * * * *"
    }
}
output {
     stdout {
        codec => json_lines
    }
   elasticsearch {
        hosts  => "localhost:9200"
        index => "contacts"
     document_type => "contact"
        document_id => "%{id}"
    }
}

 

posted @ 2017-12-22 19:24  开始战斗  阅读(839)  评论(0编辑  收藏  举报