barnyard2-2.1.9无法将snort 2.9.6.2载入的log输出到mysql数据库中，导致base无法从数据库读取数据

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 开发四年只会写业务代码，分布式高并发都不会还做程序员？->>>    运行环境： snort 2.9.6.2 + barnyard 2-2.1.9 + base 1.4.5 + mysql 5.5.10 系统：Centos 6.4 问题： 网上资料都说在snort.conf文件中修改为： output unified2: filename snort.log, limit 128 但是这种方式我生成的文件时tcpdump格式的，barnyard2 无法读取到 snort.log.1414999410: tcpdump capture file (little-endian) - version 2.4 (Ethernet, capture length 1514) Opened spool file '/var/log/snort/snort.log.1414999278' Closing spool file '/var/log/snort/snort.log.1414999278'. Read 0 records Opened spool file '/var/log/snort/snort.log.1414999339' Closing spool file '/var/log/snort/snort.log.1414999339'. Read 0 records Opened spool file '/var/log/snort/snort.log.1414999410'   步骤二：我将snort.conf文件中output 修改为： output log_unified2: filename snort.log, limit 128 这种方式我生成的文件是data，barnyard2 可以读取到，但是就是无法写进mysql数据库 snort.log.1415000281: data Closing spool file '/var/log/snort/snort.log.1415000281'. Read 64 records Opened spool file '/var/log/snort/snort.log.1415000499' Waiting for new data Closing spool file '/var/log/snort/snort.log.1415000499'. Read 12 records Opened spool file '/var/log/snort/snort.log.1415000516' barnyard2.conf配置如下： output database: log, mysql, dbname=snort user=snort password=snort host=localhost   数据库中没有插入任何数据，  跪求解答啊  困扰我一个星期了