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InnoDB: Cannot allocate memory for the buffer pool
综述:这是一次MySQL启动失败故障排查的过程。核心报错内容是[ERROR] InnoDB: Cannot allocate memory for the buffer pool ,解决方案是修改mysql配置文件里下述参数的值:innodb_buffer_pool_size 、join_buffer_size ,然后重启mysqld服务。对应服务器系统是CentOS 7。
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MyBatis报错:there is no getter for property named * in class java.lang.String
select DISTINCT a.ROLE_ID AS ROLEID, C.USER_ID AS USERID from TL_MANAGE_RIGHT_DATA a left join TL_MANAGE_USER_ROLE B ON A.ROLE_ID=B.ROLE_ID LEFT JOIN TL_MANAGE_USER c on B.USER_ID = C.USER_DEPID where a.ROLE_ID not in(1) <if test="agentmechId != '' and agentmechId != null"> and a.NUM_AGENTMECHID in (${agentmechId}) </if>
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