seata 搭建
1.安装环境:
seata:1.4.1
nacos:1.4.0
jdk: 1.8 +
maven: 3.6.3
2.搭建nacos ,路径: /usr/local/
安装之前先安装JDKhttps://blog.csdn.net/weixin_41478499/article/details/115179358
MAVENhttps://blog.csdn.net/weixin_41478499/article/details/115180251
下载nacos
[root@dxm31 nacos]# wget https://github.com/alibaba/nacos/releases/download/1.4.0/nacos-server-1.4.0.tar.gz
解压
[root@localhost local]# tar -zxvf nacos-server-1.4.0.tar.gz
解压完成删除安装包
[root@localhost local]# rm nacos-server-1.4.0.tar.gz
rm：是否删除普通文件 "nacos-server-1.4.0.tar.gz"？y
3.启动nacos服务
standalone代表着单机模式运行，非集群模式
[root@localhost local]# sh /usr/local/nacos/bin/startup.sh -m standalone
/usr/local/java/jdk1.8.0_281/bin/java -Xms512m -Xmx512m -Xmn256m -Dnacos.standalone=true -Dnacos.member.list= -Djava.ext.dirs=/usr/local/java/jdk1.8.0_281/jre/lib/ext:/usr/local/java/jdk1.8.0_281/lib/ext -Xloggc:/usr/local/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/local/nacos/plugins/health,/usr/local/nacos/plugins/cmdb -Dnacos.home=/usr/local/nacos -jar /usr/local/nacos/target/nacos-server.jar --spring.config.location=file:/usr/local/nacos/conf/,classpath:/,classpath:/config/,file:./,file:./config/ --logging.config=/usr/local/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
nacos is starting with standalone
nacos is starting，you can check the /usr/local/nacos/logs/start.out
关闭nacos服务
shutdown.sh
4.查看进程及端口监听
[root@localhost local]# ps aux |grep nacos
root 22838 29.1 56.4 2861856 524892 pts/1 Sl 17:16 1:13 /usr/local/java/jdk1.8.0_281/bin/java -Xms512m -Xmx512m -Xmn256m -Dnacos.standalone=true -Dnacos.member.list= -Djava.ext.dirs=/usr/local/java/jdk1.8.0_281/jre/lib/ext:/usr/local/java/jdk1.8.0_281/lib/ext -Xloggc:/usr/local/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/local/nacos/plugins/health,/usr/local/nacos/plugins/cmdb -Dnacos.home=/usr/local/nacos -jar /usr/local/nacos/target/nacos-server.jar --spring.config.location=file:/usr/local/nacos/conf/,classpath:/,classpath:/config/,file:./,file:./config/ --logging.config=/usr/local/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288 nacos.nacos
root 23134 0.0 0.1 112724 984 pts/1 R+ 17:20 0:00 grep --color=auto nacos
[root@localhost local]# netstat -ntlp | grep 8848
tcp6 0 0 :::8848 :::* LISTEN 22838/java
5.浏览器访问
http://ip:8848/nacos/#/login 默认账号密码都是nacos
6.搭建seata
官方文档:https://seata.io/zh-cn/docs/ops/deploy-guide-beginner.html
下载seata:https://github.com/seata/seata/releases
源码里包含里很多配置文件会用到
[root@localhost local]# wget https://github.com/seata/seata/releases/download/v1.4.1/seata-server-1.4.1.tar.gz
解压
[root@localhost local]# tar -xvf seata-server-1.4.1.tar.gz
7.配置为高可用redis模式参数并提交至配置中心/也可用db模式.配置store.mode切换
创建文件 ,位置随意自己,参照参数:https://seata.io/zh-cn/docs/user/configurations.html
vi /usr/local/seata/config.txt
配置内容如下,只配置所需内容即可;这里贴出db / redis
service.vgroupMapping.my_test_tx_group=default
store.mode=redis
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true
store.db.user=username
store.db.password=password
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
store.redis.mode=single
store.redis.single.host=122.152.195.7
store.redis.single.port=6379
store.redis.maxConn=10
store.redis.minConn=1
store.redis.maxTotal=100
store.redis.database=0
store.redis.password=jixiang
store.redis.queryLimit=100
将配置内容上传至nacos服务,新建文件夹nacos
文件位置:
[root@localhost conf]# vi /usr/local/seata/nacos/nacos-config.sh
配置内容
opyright 1999-2019 Seata.io Group.
#
# 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.
while getopts ":h:p:g:t:u:w:" opt
do
case $opt in
h)
host=$OPTARG
;;
p)
port=$OPTARG
;;
g)
group=$OPTARG
;;
t)
tenant=$OPTARG
;;
u)
username=$OPTARG
;;
w)
password=$OPTARG
;;
?)
echo " USAGE OPTION: $0 [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password] "
exit 1
;;
esac
done
urlencode() {
for ((i=0; i < ${#1}; i++))
do
char="${1:$i:1}"
case $char in
[a-zA-Z0-9.~_-]) printf $char ;;
*) printf '%%%02X' "'$char" ;;
esac
done
}
if [[ -z ${host} ]]; then
host=localhost
fi
if [[ -z ${port} ]]; then
port=8848
fi
if [[ -z ${group} ]]; then
group="SEATA_GROUP"
fi
if [[ -z ${tenant} ]]; then
tenant=""
fi
if [[ -z ${username} ]]; then
username=""
fi
if [[ -z ${password} ]]; then
password=""
fi
nacosAddr=$host:$port
contentType="content-type:application/json;charset=UTF-8"
echo "set nacosAddr=$nacosAddr"
echo "set group=$group"
failCount=0
tempLog=$(mktemp -u)
function addConfig() {
curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$(urlencode $1)&group=$group&content=$(urlencode $2)&tenant=$tenant&username=$username&password=$password" >"${tempLog}" 2>/dev/null
if [[ -z $(cat "${tempLog}") ]]; then
echo " Please check the cluster status. "
exit 1
fi
if [[ $(cat "${tempLog}") =~ "true" ]]; then
echo "Set $1=$2 successfully "
else
echo "Set $1=$2 failure "
(( failCount++ ))
fi
}
count=0
for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do
(( count++ ))
key=${line%%=*}
value=${line#*=}
addConfig "${key}" "${value}"
done
echo "========================================================================="
echo " Complete initialization parameters, total-count:$count , failure-count:$failCount "
echo "========================================================================="
if [[ ${failCount} -eq 0 ]]; then
echo " Init nacos config finished, please start seata-server. "
else
echo " init nacos config fail. "
fi
上传操作
[root@localhost seata]# cd /usr/local/seata/nacos/
[root@localhost nacos]# bash nacos-config.sh -h ip -p 8848 -g SEATA_GROUP -u nacos -w nacos
nacos-config.sh:行2: opyright: 未找到命令
set nacosAddr=192.168.92.128:8848
set group=SEATA_GROUP
Set service.vgroupMapping.my_test_tx_group=default successfully
Set store.mode=redis successfully
Set store.redis.mode=single successfully
Set store.redis.single.host=122.152.195.7 successfully
Set store.redis.single.port=6379 successfully
Set store.redis.maxConn=10 successfully
Set store.redis.minConn=1 successfully
Set store.redis.maxTotal=100 successfully
Set store.redis.database=0 successfully
Set store.redis.password=jixiang successfully
Set store.redis.queryLimit=100 successfully
=========================================================================
Complete initialization parameters, total-count:11 , failure-count:0
=========================================================================
Init nacos config finished, please start seata-server.
查看nacos是否上传成功
这里使用的是public默认的命名空间,也可自己新建.若要上传到自己新建的命名空间则上传操作需做微调,t后面跟着命名空间ID,此id可自定义否则自动生成.下面配置registry.conf时namespace参数若用public则不填,否则天对应命名空间ID
bash nacos-config.sh -h 192.168.92.129 -p 8848 -g SEATA_GROUP -t c3c73e9b-c32d-408c-83f6-09861e4072de -u nacos -w nacos
查看自建命名空间
8.修改seata的两个配置文件 file.conf 和 registry.conf
vi /usr/local/seata/conf/file.conf
9.file.conf 可以只保留自己需要的.这里我选用的是redis / 也可以选择db,配置的话自行填写
## transaction log store, only used in seata-server
store {
## store mode: file、db、redis
#设置存储模式，也就是设置事务日志存储位置
mode = "redis"
## database store property
db {
## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.
datasource = "druid"
## mysql/oracle/postgresql/h2/oceanbase etc.
dbType = "mysql"
driverClassName = "com.mysql.jdbc.Driver"
url = "jdbc:mysql://127.0.0.1:3306/seata"
user = "mysql"
password = "mysql"
minConn = 5
maxConn = 100
globalTable = "global_table"
branchTable = "branch_table"
lockTable = "lock_table"
queryLimit = 100
maxWait = 5000
}
## redis store property
redis {
host = "127.0.0.1"
port = "6379"
password = "password"
database = "0"
minConn = 1
maxConn = 10
maxTotal = 100
queryLimit = 100
}
}
10.registry.conf
这里选用nacos作为服务中心,需要注意namespace的值在nacos
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
loadBalance = "RandomLoadBalance"
loadBalanceVirtualNodes = 10
nacos {
application = "seata-server"
serverAddr = "127.0.0.1:8848"
//不同的命名空间,分组不能一样.
group = "SEATA_GROUP"
namespace = ""
cluster = "default"
username = "nacos"
password = "nacos"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "127.0.0.1:8848"
namespace = ""
group = "SEATA_GROUP"
username = "nacos"
password = "nacos"
}
}
11.启动seata
[root@localhost conf]# sh /usr/local/seata/bin/seata-server.sh -h 127.0.0.1 -p 8091
成功会有如下片段
01:56:42.912 INFO --- [ main] io.seata.config.FileConfiguration : The file name of the operation is registry
01:56:42.916 INFO --- [ main] io.seata.config.FileConfiguration : The configuration file used is /usr/local/seata/conf/registry.conf
01:56:43.744 INFO --- [ main] i.s.s.storage.redis.JedisPooledFactory : initialization of the build redis connection pool is complete
01:56:43.921 INFO --- [ main] i.s.core.rpc.netty.NettyServerBootstrap : Server started, listen port: 8091
查看nacos服务列表,发现注册上了seata服务
12.高可用Seata-server搭建
重新启动一台linux将6.8.9.10.11操作重新做一遍即可,启动ip为本机ip.可以看到实例数是2个
注解即开启全局事务.
/**
* 1.开启全局事务需要在具体的方法上加注解
* @GlobalTransactional(rollbackFor = Exception.class)
* 2.业务流程为2个不同的库修改数据
*/
@Override
@GlobalTransactional(rollbackFor = Exception.class)
public void update(JSONObject param) {
//修改库1表字段值
accountDao.updateNum(id,num);
//修改库2表字段值
userDao.updateUserMoney(id,money);
//异常逻辑
int i = 1/0;
}
查看redis
:
看控制台日志
若没异常可正常提交
可以停掉其中一个seata服务,发现也是可以正常回滚和提交