server.xml Mycat的配置文件,用来设置用户账号、黑/白名单、系统参数等
部分属性详解:
建议使用默认配置即可
<?xml version="1.0" encoding="UTF-8"?>
<!--Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. - You
may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0
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under the License. -->
<!DOCTYPE mycat:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
<system>
<property name="nonePasswordLogin">0</property> <!-- 0为需要密码登陆、1为不需要密码登陆 ,默认为0,设置为1则需要指定默认账户-->
<property name="useHandshakeV10">1</property>
<property name="useSqlStat">0</property> <!-- 1为开启实时统计、0为关闭 -->
<property name="useGlobleTableCheck">0</property> <!-- 1为开启全局表一致性检测 0为关闭 -->
<property name="sqlExecuteTimeout">300</property> <!-- SQL 执行超时 单位:秒 默认:300s-->
<property name="sequnceHandlerType">2</property> <!-- 全局序列号/ID生成方式。(0:为本地文件方式,1:为数据库方式;2:为时间戳序列方式;3:为ZK生成ID;4:为ZK递增ID生成 -->
<!-- <property name="sequnceHandlerPattern">(?:(\s*next\s+value\s+for\s*MYCATSEQ_(\w+))(,|\)|\s)*)+</property>-->
<!--必须带有MYCATSEQ_或者 mycatseq_进入序列匹配流程 注意MYCATSEQ_有空格的情况-->
<property name="sequnceHandlerPattern">(?:(\s*next\s+value\s+for\s*MYCATSEQ_(\w+))(,|\)|\s)*)+</property>
<property name="subqueryRelationshipCheck">false</property> <!-- 子查询中存在关联查询的情况下,检查关联字段中是否有分片字段 .默认 false -->
<!-- <property name="useCompression">1</property>--> <!--1为开启mysql压缩协议-->
<!-- <property name="fakeMySQLVersion">5.6.20</property>--> <!--设置模拟的MySQL版本号-->
<!-- <property name="processorBufferChunk">40960</property> -->
<!-- <property name="processors">1</property> --> <!-- mycat启动后进程数(基于CPU核数进行实例化) -->
<!-- <property name="processorExecutor">32</property> --> <!-- 进程里面的线程池有多少,生产环境根据硬件资源进行调优使用,一般情况可以使用默认配置 -->
<!--默认为type 0: DirectByteBufferPool | type 1 ByteBufferArena | type 2 NettyBufferPool -->
<property name="processorBufferPoolType">0</property>
<!--默认是65535 64K 用于sql解析时最大文本长度 -->
<!-- <property name="maxStringLiteralLength">65535</property>-->
<!-- <property name="sequnceHandlerType">0</property>-->
<!-- <property name="backSocketNoDelay">1</property>-->
<!-- <property name="frontSocketNoDelay">1</property>-->
<!-- <property name="processorExecutor">16</property>-->
<!-- <property name="serverPort">8066</property> --> <!-- 定义 mycat 的使用端口,默认值为 8066 -->
<!-- <property name="managerPort">9066</property> --> <!-- 定义 mycat 的管理端口,默认值为 9066 -->
<!-- <property name="idleTimeout">300000</property> -->
<!-- <property name="bindIp">0.0.0.0</property> -->
<!-- <property name="dataNodeIdleCheckPeriod">300000</property> --> <!-- 连接空闲检查,5 * 60 * 1000L;-->
<!-- <property name="frontWriteQueueSize">4096</property> -->
<!-- <property name="processors">32</property> -->
<!--分布式事务开关,0为不过滤分布式事务,1为过滤分布式事务(如果分布式事务内只涉及全局表,则不过滤),2为不过滤分布式事务,但是记录分布式事务日志-->
<property name="handleDistributedTransactions">0</property>
<!-- off heap for merge/order/group/limit 1开启 0关闭 -->
<property name="useOffHeapForMerge">0</property>
<!-- 单位为m -->
<property name="memoryPageSize">64k</property>
<!-- 单位为k -->
<property name="spillsFileBufferSize">1k</property>
<property name="useStreamOutput">0</property>
<!-- 单位为m -->
<property name="systemReserveMemorySize">384m</property>
<!--是否采用zookeeper协调切换 -->
<property name="useZKSwitch">false</property>
<!-- XA Recovery Log日志路径 -->
<!--<property name="XARecoveryLogBaseDir">./</property>-->
<!-- XA Recovery Log日志名称 -->
<!--<property name="XARecoveryLogBaseName">tmlog</property>-->
<!--如果为 true的话 严格遵守隔离级别,不会在仅仅只有select语句的时候在事务中切换连接-->
<property name="strictTxIsolation">false</property>
</system>
<!-- 全局SQL防火墙设置 -->
<!--白名单可以使用通配符%或着*-->
<!--例如<host host="127.0.0.*" user="root"/>-->
<!--例如<host host="127.0.*" user="root"/>-->
<!--例如<host host="127.*" user="root"/>-->
<!--例如<host host="1*7.*" user="root"/>-->
<!--这些配置情况下对于127.0.0.1都能以root账户登录-->
<!--
<firewall>
<whitehost>
<host host="1*7.0.0.*" user="root"/>
</whitehost>
<blacklist check="false">
</blacklist>
</firewall>
-->
<!-- 用户1:root -->
<user name="root" defaultAccount="true">
<property name="password">123456</property>
<!-- 可访问的逻辑库,可为多个逗号分开 -->
<property name="schemas">TESTDB</property>
<!-- 当前端的整体connection数达到基准值是,对来自该账户的请求开始拒绝连接,0或不设表示不限制-->
<property name="benchmark">11111</property>
<!-- 是否对密码加密,默认0:否(1:开启) -->
<proerty name="usingDecrypt">0</property>
<!-- 表级 DML 权限设置 顺序:IUSD -->
<!--
<privileges check="false">
<schema name="TESTDB" dml="0110" >
<table name="tb01" dml="0000"></table>
<table name="tb02" dml="1111"></table>
</schema>
</privileges>
-->
</user>
<!-- 用户2:user -->
<user name="user">
<property name="password">user</property>
<property name="schemas">TESTDB</property>
<!-- 是否只读 -->
<property name="readOnly">true</property>
</user>
</mycat:server>