在mycat的bin目錄下時啓動相關的命令，而在conf目錄下則是配置相關的文件。目錄下文件如下，
主要是schema和server兩個xml文件的配置
[root@instance-d6rdm793 mycat]# cd conf/
[root@instance-d6rdm793 conf]# ls -l
total 108
-rwxrwxrwx 1 mycat mycat 88 Jan 22 2018 autopartition-long.txt
-rwxrwxrwx 1 mycat mycat 48 Jan 22 2018 auto-sharding-long.txt
-rwxrwxrwx 1 mycat mycat 62 Jan 22 2018 auto-sharding-rang-mod.txt
-rwxrwxrwx 1 mycat mycat 334 Jan 22 2018 cacheservice.properties
-rwxrwxrwx 1 mycat mycat 3244 Jan 22 2018 dbseq.sql
-rwxrwxrwx 1 mycat mycat 439 Jan 22 2018 ehcache.xml
-rwxrwxrwx 1 mycat mycat 2132 Jan 22 2018 index_to_charset.properties
-rwxrwxrwx 1 mycat mycat 1253 Dec 1 2016 log4j2.xml
-rwxrwxrwx 1 mycat mycat 178 Jan 22 2018 migrateTables.properties
-rwxrwxrwx 1 mycat mycat 262 Jan 22 2018 myid.properties
-rwxrwxrwx 1 mycat mycat 15 Jan 22 2018 partition-hash-int.txt
-rwxrwxrwx 1 mycat mycat 102 Jan 22 2018 partition-range-mod.txt
-rwxrwxrwx 1 mycat mycat 4794 Jan 22 2018 rule.xml
-rwxrwxrwx 1 mycat mycat 4219 Jan 22 2018 schema.xml
-rwxrwxrwx 1 mycat mycat 413 Jan 22 2018 sequence_conf.properties
-rwxrwxrwx 1 mycat mycat 75 Jan 22 2018 sequence_db_conf.properties
-rwxrwxrwx 1 mycat mycat 27 Jan 22 2018 sequence_distributed_conf.properties
-rwxrwxrwx 1 mycat mycat 51 Jan 22 2018 sequence_time_conf.properties
-rwxrwxrwx 1 mycat mycat 4623 Jan 22 2018 server.xml
-rwxrwxrwx 1 mycat mycat 16 Jan 22 2018 sharding-by-enum.txt
-rwxrwxrwx 1 mycat mycat 4186 Jan 22 2018 wrapper.conf
drwxrwxrwx 2 mycat mycat 4096 Apr 9 22:19 zkconf
drwxrwxrwx 2 mycat mycat 4096 Apr 9 22:19 zkdownload
schema.xml 這個文件是配置讀寫分離相關的配置。
[root@instance-d6rdm793 conf]# cat schema.xml
<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100">
<!-- auto sharding by id (long) -->
<table name="travelrecord" dataNode="dn1,dn2,dn3" rule="auto-sharding-long" />
<!-- global table is auto cloned to all defined data nodes ,so can join
with any table whose sharding node is in the same data node -->
<table name="company" primaryKey="ID" type="global" dataNode="dn1,dn2,dn3" />
<table name="goods" primaryKey="ID" type="global" dataNode="dn1,dn2" />
<!-- random sharding using mod sharind rule -->
<table name="hotnews" primaryKey="ID" autoIncrement="true" dataNode="dn1,dn2,dn3"
rule="mod-long" />
<!-- <table name="dual" primaryKey="ID" dataNode="dnx,dnoracle2" type="global"
needAddLimit="false"/> <table name="worker" primaryKey="ID" dataNode="jdbc_dn1,jdbc_dn2,jdbc_dn3"
rule="mod-long" /> -->
<table name="employee" primaryKey="ID" dataNode="dn1,dn2"
rule="sharding-by-intfile" />
<table name="customer" primaryKey="ID" dataNode="dn1,dn2"
rule="sharding-by-intfile">
<childTable name="orders" primaryKey="ID" joinKey="customer_id"
parentKey="id">
<childTable name="order_items" joinKey="order_id"
parentKey="id" />
</childTable>
<childTable name="customer_addr" primaryKey="ID" joinKey="customer_id"
parentKey="id" />
</table>
<!-- <table name="oc_call" primaryKey="ID" dataNode="dn1$0-743" rule="latest-month-calldate"
/> -->
</schema>
<!-- <dataNode name="dn1$0-743" dataHost="localhost1" database="db$0-743"
/> -->
<dataNode name="dn1" dataHost="localhost1" database="db1" />
<dataNode name="dn2" dataHost="localhost1" database="db2" />
<dataNode name="dn3" dataHost="localhost1" database="db3" />
<!--<dataNode name="dn4" dataHost="sequoiadb1" database="SAMPLE" />
<dataNode name="jdbc_dn1" dataHost="jdbchost" database="db1" />
<dataNode name="jdbc_dn2" dataHost="jdbchost" database="db2" />
<dataNode name="jdbc_dn3" dataHost="jdbchost" database="db3" /> -->
<dataHost name="localhost1" maxCon="1000" minCon="10" balance="0"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="hostM1" url="localhost:3306" user="root"
password="123456">
<!-- can have multi read hosts -->
<readHost host="hostS2" url="192.168.1.200:3306" user="root" password="xxx" />
</writeHost>
<writeHost host="hostS1" url="localhost:3316" user="root"
password="123456" />
<!-- <writeHost host="hostM2" url="localhost:3316" user="root" password="123456"/> -->
</dataHost>
<!--
<dataHost name="sequoiadb1" maxCon="1000" minCon="1" balance="0" dbType="sequoiadb" dbDriver="jdbc">
<heartbeat> </heartbeat>
<writeHost host="hostM1" url="sequoiadb://1426587161.dbaas.sequoialab.net:11920/SAMPLE" user="jifeng" password="jifeng"></writeHost>
</dataHost>
<dataHost name="oracle1" maxCon="1000" minCon="1" balance="0" writeType="0" dbType="oracle" dbDriver="jdbc"> <heartbeat>select 1 from dual</heartbeat>
<connectionInitSql>alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss'</connectionInitSql>
<writeHost host="hostM1" url="jdbc:oracle:thin:@127.0.0.1:1521:nange" user="base" password="123456" > </writeHost> </dataHost>
<dataHost name="jdbchost" maxCon="1000" minCon="1" balance="0" writeType="0" dbType="mongodb" dbDriver="jdbc">
<heartbeat>select user()</heartbeat>
<writeHost host="hostM" url="mongodb://192.168.0.99/test" user="admin" password="123456" ></writeHost> </dataHost>
<dataHost name="sparksql" maxCon="1000" minCon="1" balance="0" dbType="spark" dbDriver="jdbc">
<heartbeat> </heartbeat>
<writeHost host="hostM1" url="jdbc:hive2://feng01:10000" user="jifeng" password="jifeng"></writeHost> </dataHost> -->
<!-- <dataHost name="jdbchost" maxCon="1000" minCon="10" balance="0" dbType="mysql"
dbDriver="jdbc"> <heartbeat>select user()</heartbeat> <writeHost host="hostM1"
url="jdbc:mysql://localhost:3306" user="root" password="123456"> </writeHost>
</dataHost> -->
server.xml 這個是配置mycat連接和數據庫的相關信息
[root@instance-d6rdm793 conf]# cat server.xml
<?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
- - Unless required by applicable law or agreed to in writing, software -
distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the
License for the specific language governing permissions and - limitations
under the License. -->
<!DOCTYPE mycat:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
<system>
<property name="nonePasswordLogin">0</property> <!-- 0爲需要密碼登陸、1爲不需要密碼登陸 ,默認爲0，設置爲1則需要指定默認賬戶-->
<property name="useHandshakeV10">1</property>
<property name="useSqlStat">0</property> <!-- 1爲開啓實時統計、0爲關閉 -->
<property name="useGlobleTableCheck">0</property> <!-- 1爲開啓全加班一致性檢測、0爲關閉 -->
<property name="sequnceHandlerType">2</property>
<property name="subqueryRelationshipCheck">false</property> <!-- 子查詢中存在關聯查詢的情況下,檢查關聯字段中是否有分片字段 .默認 false -->
<!-- <property name="useCompression">1</property>--> <!--1爲開啓mysql壓縮協議-->
<!-- <property name="fakeMySQLVersion">5.6.20</property>--> <!--設置模擬的MySQL版本號-->
<!-- <property name="processorBufferChunk">40960</property> -->
<!--
<property name="processors">1</property>
<property name="processorExecutor">32</property>
-->
<!--默認爲type 0: DirectByteBufferPool | type 1 ByteBufferArena | type 2 NettyBufferPool -->
<property name="processorBufferPoolType">0</property>
<!--默認是65535 64K 用於sql解析時最大文本長度 -->
<!--<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> <property name="managerPort">9066</property>
<property name="idleTimeout">300000</property> <property name="bindIp">0.0.0.0</property>
<property name="frontWriteQueueSize">4096</property> <property name="processors">32</property> -->
<!--分佈式事務開關，0爲不過濾分佈式事務，1爲過濾分佈式事務（如果分佈式事務內只涉及全局表，則不過濾），2爲不過濾分佈式事務,但是記錄分佈式事務日誌-->
<property name="handleDistributedTransactions">0</property>
<!--
off heap for merge/order/group/limit 1開啓 0關閉
-->
<property name="useOffHeapForMerge">1</property>
<!--
單位爲m
-->
<property name="memoryPageSize">64k</property>
<!--
單位爲k
-->
<property name="spillsFileBufferSize">1k</property>
<property name="useStreamOutput">0</property>
<!--
單位爲m
-->
<property name="systemReserveMemorySize">384m</property>
<!--是否採用zookeeper協調切換 -->
<property name="useZKSwitch">false</property>
<!-- XA Recovery Log日誌路徑 -->
<!--<property name="XARecoveryLogBaseDir">./</property>-->
<!-- XA Recovery Log日誌名稱 -->
<!--<property name="XARecoveryLogBaseName">tmlog</property>-->
</system>
<!-- 全局SQL防火牆設置 -->
<!--白名單可以使用通配符%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"/>-->
<!--這些配置情況下對於127.0.0.1都能以root賬戶登錄-->
<!--
<firewall>
<whitehost>
<host host="1*7.0.0.*" user="root"/>
</whitehost>
<blacklist check="false">
</blacklist>
</firewall>
-->
<user name="root" defaultAccount="true">
<property name="password">123456</property>
<property name="schemas">TESTDB</property>
<!-- 表級 DML 權限設置 -->
<!--
<privileges check="false">
<schema name="TESTDB" dml="0110" >
<table name="tb01" dml="0000"></table>
<table name="tb02" dml="1111"></table>
</schema>
</privileges>
-->
</user>
<user name="user">
<property name="password">user</property>
<property name="schemas">TESTDB</property>
<property name="readOnly">true</property>
</user>
</mycat:server>