seata集群搭建
Seata服务高可用+负载均衡搭建
安装、快速启动
参考官方文档：
http://seata.io/zh-cn/docs/ops/deploy-guide-beginner.html
描述
目前三台服务器，分别在 192.168.128.36、192.168.128.37、192.168.128.32 上，通过三台服务器达到高可用，使用spring cloud ribbon达到负载均衡。
高可用部署
1.高可用部署参照：
http://seata.io/zh-cn/docs/ops/deploy-ha.html
seata github项目地址
https://github.com/seata/seata
2.安装目录
[root@localhost conf]# pwd/usr/local/seata1.3/seata/conf[root@localhost conf]# lsfile.conf file.conf.example logback.xml META-INF README.md README-zh.md registry.conf3.registry.conf配置如下：（file.conf不用管，因为用的nacos）
registry { # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa type = "nacos" nacos { application = "seata-server" serverAddr = "192.168.128.20" group = "SEATA_GROUP" namespace = "1c53b59e-9f3d-44a4-b2d7-5faaea25b3c6" cluster = "default" username = "" password = "" } eureka { serviceUrl = "http://localhost:8761/eureka" application = "default" weight = "1" } redis { serverAddr = "localhost:6379" db = 0 password = "" cluster = "default" timeout = 0 } zk { cluster = "default" serverAddr = "127.0.0.1:2181" sessionTimeout = 6000 connectTimeout = 2000 username = "" password = "" } consul { cluster = "default" serverAddr = "127.0.0.1:8500" } etcd3 { cluster = "default" serverAddr = "http://localhost:2379" } sofa { serverAddr = "127.0.0.1:9603" application = "default" region = "DEFAULT_ZONE" datacenter = "DefaultDataCenter" cluster = "default" group = "SEATA_GROUP" addressWaitTime = "3000" } file { name = "file.conf" }}config { # file、nacos 、apollo、zk、consul、etcd3 type = "nacos" nacos { serverAddr = "192.168.128.20" namespace = "aebcc8df-bcca-4f1d-8f27-fa98828753d7" group = "SEATA_GROUP" username = "" password = "" } consul { serverAddr = "127.0.0.1:8500" } apollo { appId = "seata-server" apolloMeta = "http://192.168.1.204:8801" namespace = "application" } zk { serverAddr = "127.0.0.1:2181" sessionTimeout = 6000 connectTimeout = 2000 username = "" password = "" } etcd3 { serverAddr = "http://localhost:2379" } file { name = "file.conf" }}4.在mysql（官方db地址）分别创建global_table, branch_table, lock_table表。
5.在nacos添加namespace=seata
image.png
6.导入seata配置文件，
步骤：
6.1修改nacos-config.sh脚本，以适用自己的nacos配置，官方配置
#!/usr/bin/env bash# Copyright 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:" optdo 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 ;; esacdoneif [[ -z ${host} ]]; then host=localhostfiif [[ -z ${port} ]]; then port=8849fiif [[ -z ${group} ]]; then group="SEATA_GROUP"fiif [[ -z ${tenant} ]]; then tenant=""fiif [[ -z ${username} ]]; then username=""fiif [[ -z ${password} ]]; then password=""finacosAddr=$host:$portcontentType="content-type:application/json;charset=UTF-8"echo "set nacosAddr=$nacosAddr"echo "set group=$group"failCount=0tempLog=$(mktemp -u)function addConfig() { curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$1&group=$group&content=$2&tenant=$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=0for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do (( count++ )) key=${line%%=*} value=${line#*=} addConfig "${key}" "${value}"doneecho "========================================================================="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. "fi6.2修改config.txt文件，以适用自己的nacos配置，官方配置
7.执行nacos-config.sh脚本
sh nacos-config.sh -h 192.168.128.20 -p 8848 -g SEATA_GROUP -t aebcc8df-bcca-4f1d-8f27-fa98828753d7
image.png
执行完成以后即可看到nacos配置
image.png
启动
1.进入bin目录下所示
[root@localhost bin]# pwd/usr/local/seata1.3/seata/bin[root@localhost bin]# lsnohup.out seata-server.bat seata-server.sh2.三台机器分别执行如下命令：
nohup sh ./seata-server.sh -p 8091 -h 192.168.128.36 -m db -n 3 &nohup sh ./seata-server.sh -p 8091 -h 192.168.128.37 -m db -n 2 &nohup sh ./seata-server.sh -p 8091 -h 192.168.128.32 -m db -n 1 &windows下配置和启动
1.windows启动命令（本机）.\seata-server.bat -p 28091 -m db -n 4
- registry.conf配置
registry { # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa type = "nacos" nacos { application = "seata-server" serverAddr = "192.168.128.20" group = "SEATA_GROUP" namespace = "aebcc8df-bcca-4f1d-8f27-fa98828753d7" cluster = "default" username = "" password = "" } eureka { serviceUrl = "http://localhost:8761/eureka" application = "default" weight = "1" } redis { serverAddr = "localhost:6379" db = 0 password = "" cluster = "default" timeout = 0 } zk { cluster = "default" serverAddr = "127.0.0.1:2181" sessionTimeout = 6000 connectTimeout = 2000 username = "" password = "" } consul { cluster = "default" serverAddr = "127.0.0.1:8500" } etcd3 { cluster = "default" serverAddr = "http://localhost:2379" } sofa { serverAddr = "127.0.0.1:9603" application = "default" region = "DEFAULT_ZONE" datacenter = "DefaultDataCenter" cluster = "default" group = "SEATA_GROUP" addressWaitTime = "3000" } file { name = "file.conf" }}config { # file、nacos 、apollo、zk、consul、etcd3 type = "nacos" nacos { serverAddr = "192.168.128.20" namespace = "aebcc8df-bcca-4f1d-8f27-fa98828753d7" group = "SEATA_GROUP" username = "" password = "" } consul { serverAddr = "127.0.0.1:8500" } apollo { appId = "seata-server" apolloMeta = "http://192.168.1.204:8801" namespace = "application" } zk { serverAddr = "127.0.0.1:2181" sessionTimeout = 6000 connectTimeout = 2000 username = "" password = "" } etcd3 { serverAddr = "http://localhost:2379" } file { name = "file.conf" }}
seata集群搭建
LawsonJin 2020-09-09 12:01:02 1203 收藏
分类专栏： Java挑战20K-40K线路图
版权
seata1.3 nacos1.3.0配置中心
1.下载seata-dev-tools
2.下载seata1.3
3.cd script/config-center/nacos/
4.vim nacos-config.sh 44行 配置nacos的地址 、端口、账号密码
if [[ -z ${host} ]]; then
host=nacos.baidu.com
fi
if [[ -z ${port} ]]; then
port=80
fi
if [[ -z ${group} ]]; then
group="SEATA_GROUP"
fi
if [[ -z ${tenant} ]]; then
tenant=""
fi
if [[ -z ${username} ]]; then
username="nacos"
fi
if [[ -z ${password} ]]; then
password="hon20"
fi
5. sh nacos-config.sh 上传配置信息
6.unzip seata1.3 下载seata1.3解压
7.cd seata1.3/conf
8.vim file.conf 这里我使用db模式
## transaction log store, only used in seata-server
store {
## store mode: file、db、redis
mode = "db"
## 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://39.97.999.29:3306/seata"
user = "root"
password = "ho20"
minConn = 5
maxConn = 30
globalTable = "global_table"
branchTable = "branch_table"
lockTable = "lock_table"
queryLimit = 100
maxWait = 5000
}
service {
vgroupMapping.storage-service-group= "default"
vgroupMapping.order-service-group= "default"
vgroupMapping.business-service-group= "default"
}
}
9.配置数据库文件 seata数据库
/*
Navicat Premium Data Transfer
Source Server : OBD服务器
Source Server Type : MySQL
Source Server Version : 50730
Source Host : 39.97.208.29:3306
Source Schema : seata
Target Server Type : MySQL
Target Server Version : 50730
File Encoding : 65001
Date: 09/09/2020 11:54:01
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for branch_table
-- ----------------------------
DROP TABLE IF EXISTS `branch_table`;
CREATE TABLE `branch_table` (
`branch_id` bigint(20) NOT NULL,
`xid` varchar(128) NOT NULL,
`transaction_id` bigint(20) DEFAULT NULL,
`resource_group_id` varchar(32) DEFAULT NULL,
`resource_id` varchar(256) DEFAULT NULL,
`branch_type` varchar(8) DEFAULT NULL,
`status` tinyint(4) DEFAULT NULL,
`client_id` varchar(64) DEFAULT NULL,
`application_data` varchar(2000) DEFAULT NULL,
`gmt_create` datetime(6) DEFAULT NULL,
`gmt_modified` datetime(6) DEFAULT NULL,
PRIMARY KEY (`branch_id`),
KEY `idx_xid` (`xid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for global_table
-- ----------------------------
DROP TABLE IF EXISTS `global_table`;
CREATE TABLE `global_table` (
`xid` varchar(128) NOT NULL,
`transaction_id` bigint(20) DEFAULT NULL,
`status` tinyint(4) NOT NULL,
`application_id` varchar(32) DEFAULT NULL,
`transaction_service_group` varchar(32) DEFAULT NULL,
`transaction_name` varchar(128) DEFAULT NULL,
`timeout` int(11) DEFAULT NULL,
`begin_time` bigint(20) DEFAULT NULL,
`application_data` varchar(2000) DEFAULT NULL,
`gmt_create` datetime DEFAULT NULL,
`gmt_modified` datetime DEFAULT NULL,
PRIMARY KEY (`xid`),
KEY `idx_gmt_modified_status` (`gmt_modified`,`status`),
KEY `idx_transaction_id` (`transaction_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for lock_table
-- ----------------------------
DROP TABLE IF EXISTS `lock_table`;
CREATE TABLE `lock_table` (
`row_key` varchar(128) NOT NULL,
`xid` varchar(96) DEFAULT NULL,
`transaction_id` bigint(20) DEFAULT NULL,
`branch_id` bigint(20) NOT NULL,
`resource_id` varchar(256) DEFAULT NULL,
`table_name` varchar(32) DEFAULT NULL,
`pk` varchar(36) DEFAULT NULL,
`gmt_create` datetime DEFAULT NULL,
`gmt_modified` datetime DEFAULT NULL,
PRIMARY KEY (`row_key`),
KEY `idx_branch_id` (`branch_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
SET FOREIGN_KEY_CHECKS = 1;
10.每个需要全局事务的数据库中，放一个undo_log的表
/*
Navicat Premium Data Transfer
Source Server : OBD服务器
Source Server Type : MySQL
Source Server Version : 50730
Source Host : 39.97.208.29:3306
Source Schema : seata-demo
Target Server Type : MySQL
Target Server Version : 50730
File Encoding : 65001
Date: 07/08/2020 10:15:13
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for undo_log
-- ----------------------------
DROP TABLE IF EXISTS `undo_log`;
CREATE TABLE `undo_log` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`branch_id` bigint(20) NOT NULL,
`xid` varchar(100) NOT NULL,
`context` varchar(128) NOT NULL,
`rollback_info` longblob NOT NULL,
`log_status` int(11) NOT NULL,
`log_created` datetime NOT NULL,
`log_modified` datetime NOT NULL,
`ext` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
) ENGINE=InnoDB AUTO_INCREMENT=432 DEFAULT CHARSET=utf8;
SET FOREIGN_KEY_CHECKS = 1;
11.vim registry.conf
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
application = "seata-server"
serverAddr = "nacos.baidu.com:80"
group = "SEATA_GROUP"
namespace = ""
cluster = "default"
username = "nacos"
password = "ho20"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "nacos.baidu.com:80"
namespace = ""
group = "SEATA_GROUP"
username = "nacos"
password = "ho0"
}
}
12. cd bin
13.sh seata-server.sh -p 8091 -h 192.168.0.199 -m file &> seata.log & -h如果是外网的话，请设置为外网IP，否则出错
14. 代码中配置seata tips:需要在每个分布式事务的微服务中都配置
seata:
tx-service-group: test_tx_service_group
config:
type: nacos
nacos:
serverAddr: ${spring.cloud.nacos.server-addr}
group: SEATA_GROUP
username: ${spring.cloud.nacos.username}
password: ${spring.cloud.nacos.password}
registry:
type: nacos
nacos:
server-addr: ${spring.cloud.nacos.server-addr}
group: SEATA_GROUP
username: ${spring.cloud.nacos.username}
password: ${spring.cloud.nacos.password}
15:在业务开始的地方添加注解@GlobalTransactional ，该注解下的所有增删改都会走分布式事务
16.seata常见问题 https://seata.io/zh-cn/docs/overview/faq.html
17.集群：在其他机器上，再开启一个seata，配置不变。
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版权声明：本文为CSDN博主「LawsonJin」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
