jdbc_static: 出现 sql 语法错误我没有写

Question

我尝试使用 logstash 提取一些表，在 logstash mashine 上本地转换它们，然后将结果加载到 ElasticSearch。之所以采用这种方案，是因为源服务器MariaDB的计算能力非常有限。

我已经单独测试了输入{}，它可以工作，因此与 mariadb 的连接正常。
我已经针对 MicrosoftSQL 服务器测试了 jdbc_static 过滤器。因此 logstash 在当前环境中具有写入权限。
我直接在MariaDB服务器上测试了SQL语法
我是运行 logstash 6.8 和 java 8（java 版本“1.8.0_211”）
我试过早期版本的mariadb jdbc连接 (mariadb-java-client-2.4.2.jar, mariadb-java-client-2.2.6-sources, mariadb-java-client-2.3.0-sources)

我的配置文件

input {
  jdbc {

    jdbc_driver_library => "C:/Logstash/logstash-6.8.0/plugin/mariadb-java-client-2.4.2.jar"
    jdbc_driver_class => "Java::org.mariadb.jdbc.Driver"

    jdbc_connection_string => "jdbc:mariadb://xx.xx.xx
    jdbc_user => "me"
    jdbc_password => "its secret"

    schedule => "* * * * *"
    statement => "SELECT unqualifiedversionid__ FROM   AuditEventFHIR WHERE myUnqualifiedId = '0000134b-fc7f-4c3a-b681-8150068d6dbb'"

  }
}
filter {
   jdbc_static {
        loaders => [ 
          {
            id => "auditevent"
            query => "SELECT  
                    myUnqualifiedId
                    ,unqualifiedversionid__
                    ,type_
                    FROM AuditEventFHIR
                    where myUnqualifiedId = '0000134b-fc7f-4c3a-b681-8150068d6dbb'
                    "
            local_table => "l_ae"
          } 
        ]

        local_db_objects => [ 

          {
            name => "l_ae"
            index_columns => ["myUnqualifiedId"]
            columns => [
              ["myUnqualifiedId", "varchar(256)"],
              ["unqualifiedversionid__", "varchar(24)"],
              ["type_", "varchar(256)"]
            ]
          }

        ]

        local_lookups => [ 
          {
            id => "rawlogfile"
            query => "
               select myUnqualifiedId from l_ae
                "  
            target => "sql_output"
          }
        ]

        jdbc_driver_library => "C:/Logstash/logstash-6.8.0/plugin/mariadb-java-client-2.4.2.jar"
        jdbc_driver_class => "Java::org.mariadb.jdbc.Driver"     
        jdbc_connection_string => "jdbc:mariadb://xx.xx.xx.xx"
        jdbc_user => "me"
        jdbc_password => "its secret"
        }
}


output {
    stdout { codec => rubydebug }
}

我遇到了这个错误和其他几个错误，但我怀疑修复第一个错误会修复其余的错误。但关键是我的代码中没有 "LIMIT 1"

[ERROR][logstash.filters.jdbc.readonlydatabase] Exception occurred when executing loader Jdbc query count {:exception=>"Java::JavaSql::SQLSyntaxErrorException: (conn=1490) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '\"T1\" LIMIT 1' at line 8", :backtrace=>["org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(org/mariadb/jdbc/internal/util/exceptions/ExceptionMapper.java:242)", "org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(org/mariadb/jdbc/internal/util/exceptions/ExceptionMapper.java:171)", "org.mariadb.jdbc.MariaDbStatement.executeExceptionEpilogue(org/mariadb/jdbc/MariaDbStatement.java:248)", "org.mariadb.jdbc.MariaDbStatement.executeInternal(org/mariadb/jdbc/MariaDbStatement.java:338)", "org.mariadb.jdbc.MariaDbStatement.executeQuery(org/mariadb/jdbc/MariaDbStatement.java:512)", "java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:498)", "org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:425)", "org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:292)"]}

Answer 1

jdbc_static 加载程序在下载 table 时进行隐藏 SQL 查询 select count(*) from table limit 1 以获取校验和。此查询包含 "，而 mariaDB 不喜欢这样。

除非您将 'ANSI_QUOTES' 添加到 sql_mode

批处理命令

SET GLOBAL sql_mode = 'ANSI_QUOTES'

另一种选择是将会话设置为允许ansi_quotes

jdbc_connection_string => "jdbc:mariadb://xx.xx.xx/databasename?sessionVariables=sql_mode=ANSI_QUOTES"

jdbc_static: 出现 sql 语法错误我没有写

jdbc_static: Getting a sql syntax error I did'nt write

logstash

logstash-configuration

logstash-jdbc