九、安装Seata - 《CentOS 安装各种软件》

1. 下载
2. 上传并解压
3. 创建数据库
4. 修改配置文件
- 4.1 修改 conf/registry.conf 配置
- 4.2 修改 conf/file.conf 配置
5.将Seata配置信息导入Nacos
- 5.1 方法一：通过命令导入
- 5.2 方法二： Nacos界面导入
6.启动 Seata Server

版本：教程所用Seata版本：1.4.2

1. 下载

这里我们下载tar.gz版本,下载地址:https://github.com/seata/seata/releases

2. 上传并解压

上传到CentOS服务器，执行解压命令
tar -zxvf seata-server-1.4.2.tar.gz

3. 创建数据库

-- global_table的表结构
CREATE TABLE `global_table` (
  `xid` varchar(128) NOT NULL,
  `transaction_id` bigint(20) DEFAULT NULL,
  `status` tinyint(4) NOT NULL,
  `application_id` varchar(64) DEFAULT NULL,
  `transaction_service_group` varchar(64) DEFAULT NULL,
  `transaction_name` varchar(64) 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=utf8mb4;
-- branch_table的表结构
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,
  `lock_key` varchar(128) 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 DEFAULT NULL,
  `gmt_modified` datetime DEFAULT NULL,
  PRIMARY KEY (`branch_id`),
  KEY `idx_xid` (`xid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
-- lock_table的表结构
create table `lock_table` (
  `row_key` varchar(128) not null,
  `xid` varchar(96),
  `transaction_id` long ,
  `branch_id` long,
  `resource_id` varchar(256) ,
  `table_name` varchar(32) ,
  `pk` varchar(32) ,
  `gmt_create` datetime ,
  `gmt_modified` datetime,
  primary key(`row_key`)
);

4. 修改配置文件

4.1 修改 conf/registry.conf 配置

目前seata支持如下的file、nacos 、apollo、zk、consul的注册中心和配置中心。这里我们以nacos 为例。将 type 改为 nacos。

serverAddr = “ip:8848” ：nacos 的地址
namespace = “” ：nacos的命名空间默认为``

cluster = “default” ：集群设置未默认 default

4.2 修改 conf/file.conf 配置

修改file.conf

5.将Seata配置信息导入Nacos

5.1 方法一：通过命令导入

新建nacos-config.txt

transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.thread-factory.boss-thread-prefix=NettyBoss
transport.thread-factory.worker-thread-prefix=NettyServerNIOWorker
transport.thread-factory.server-executor-thread-prefix=NettyServerBizHandler
transport.thread-factory.share-boss-worker=false
transport.thread-factory.client-selector-thread-prefix=NettyClientSelector
transport.thread-factory.client-selector-thread-size=1
transport.thread-factory.client-worker-thread-prefix=NettyClientWorkerThread
transport.thread-factory.boss-thread-size=1
transport.thread-factory.worker-thread-size=8
transport.shutdown.wait=3
service.vgroup_mapping.order-service-seata-service-group=default
service.vgroup_mapping.account-service-seata-service-group=default
service.vgroup_mapping.storage-service-seata-service-group=default
service.vgroup_mapping.business-service-seata-service-group=default
service.enableDegrade=false
service.disable=false
service.max.commit.retry.timeout=-1
service.max.rollback.retry.timeout=-1
client.async.commit.buffer.limit=10000
client.lock.retry.internal=10
client.lock.retry.times=30
store.mode=db
store.file.dir=file_store/data
store.file.max-branch-session-size=16384
store.file.max-global-session-size=512
store.file.file-write-buffer-cache-size=16384
store.file.flush-disk-mode=async
store.file.session.reload.read_size=100
store.db.driver-class-name=com.mysql.jdbc.Driver
store.db.datasource=dbcp
store.db.db-type=mysql
store.db.url=jdbc:mysql://192.168.10.200:3306/seata?useUnicode=true
store.db.user=lidong
store.db.password=cwj887766@@
store.db.min-conn=1
store.db.max-conn=3
store.db.global.table=global_table
store.db.branch.table=branch_table
store.db.query-limit=100
store.db.lock-table=lock_table
recovery.committing-retry-period=1000
recovery.asyn-committing-retry-period=1000
recovery.rollbacking-retry-period=1000
recovery.timeout-retry-period=1000
transaction.undo.data.validation=true
transaction.undo.log.serialization=jackson
transaction.undo.log.save.days=7
transaction.undo.log.delete.period=86400000
transaction.undo.log.table=undo_log
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registry-type=compact
metrics.exporter-list=prometheus
metrics.exporter-prometheus-port=9898
client.report.retry.count=5
service.disableGlobalTransaction=false
client.support.spring.datasource.autoproxy=true

数据项介绍：

store.mode :存储模式默认file 这里我修改为db 模式，并且需要三个表global_table、branch_table和lock_table
store.db.driver-class-name： 0.8.0版本默认没有，会报错。添加了 com.mysql.jdbc.Driver
store.db.datasource=dbcp ：数据源 dbcp
store.db.db-type=mysql : 存储数据库的类型为mysql
store.db.url=jdbc:mysql://192.168.10.200:3306/seata?useUnicode=true : 修改为自己的数据库url、port、数据库名称
store.db.user=lidong :数据库的账号
store.db.password=cwj887766@@ :数据库的密码
service.vgroup_mapping.order-service-seata-service-group=default
service.vgroup_mapping.account-service-seata-service-group=default
service.vgroup_mapping.storage-service-seata-service-group=default
service.vgroup_mapping.business-service-seata-service-group=default
client.support.spring.datasource.autoproxy=true 开启数据源自动代理

新建nacos-config.sh

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
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=$1&group=$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=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

执行
sh nacos-config.sh -h 47.104.146.31 -p 8848 -g SEATA_GROUP
查看nacos界面，配置项已经导入

5.2 方法二： Nacos界面导入

6.启动 Seata Server

使用db 模式启动
nohup ./seata-server.sh -h 127.0.0.1 -p 8091 >log.out 2>1 &
这时候在 Nacos 的服务列表下面可以看到一个名为serverAddr的服务