最近在学习阿里的分布式事务seata,在官网下载了seata sample后,想本地跑起来实施,于是选择了springcloud-eureka-seata来尝试,如下所示:
在eureka和四个示例业务模块都跑起来后,发现四个业务模块都报了下面这个错:
2020-03-14 15:57:17.298 ERROR 12748 --- [imeoutChecker_1] i.s.c.r.netty.NettyClientChannelManager : no available service 'null' found, please make sure registry config correct
于是就百度找了些资料,发现只有在说file.conf,registry.conf配置问题,我照着配置了后,还是报错,心想为毛老是说找不到啊,这个null的service究竟是啥,一直反复看
file.conf,registry.conf这两个配置文件,后来头脑开窍了,才发现自己没有下载seata服务器下来,并且启动注册到eureka上去,于是从seaka下载,后解压:
修改conf下的 file.conf,和registry.conf内容,改为如下:
file.conf:
transport {
# tcp udt unix-domain-socket
type = "TCP"
#NIO NATIVE
server = "NIO"
#enable heartbeat
heartbeat = true
# the client batch send request enable
enableClientBatchSendRequest = false
#thread factory for netty
threadFactory {
bossThreadPrefix = "NettyBoss"
workerThreadPrefix = "NettyServerNIOWorker"
serverExecutorThreadPrefix = "NettyServerBizHandler"
shareBossWorker = false
clientSelectorThreadPrefix = "NettyClientSelector"
clientSelectorThreadSize = 1
clientWorkerThreadPrefix = "NettyClientWorkerThread"
# netty boss thread size,will not be used for UDT
bossThreadSize = 1
#auto default pin or 8
workerThreadSize = "default"
}
shutdown {
# when destroy server, wait seconds
wait = 3
}
serialization = "seata"
compressor = "none"
}
# service configuration, only used in client side
service {
#transaction service group mapping
vgroupMapping.my_test_tx_group = "default"
default.grouplist = "127.0.0.1:8091"
#degrade, current not support
enableDegrade = false
#disable seata
disableGlobalTransaction = false
}
#client transaction configuration, only used in client side
client {
rm {
asyncCommitBufferLimit = 10000
lock {
retryInterval = 10
retryTimes = 30
retryPolicyBranchRollbackOnConflict = true
}
reportRetryCount = 5
tableMetaCheckEnable = false
reportSuccessEnable = false
sqlParserType = druid
}
tm {
commitRetryCount = 5
rollbackRetryCount = 5
}
undo {
dataValidation = true
logSerialization = "jackson"
logTable = "undo_log"
}
log {
exceptionRate = 100
}
}
## transaction log store, only used in server side
store {
## store mode: file、db
mode = "file"
## file store property
file {
## store location dir
dir = "sessionStore"
# branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
maxBranchSessionSize = 16384
# globe session size , if exceeded throws exceptions
maxGlobalSessionSize = 512
# file buffer size , if exceeded allocate new buffer
fileWriteBufferCacheSize = 16384
# when recover batch read size
sessionReloadReadSize = 100
# async, sync
flushDiskMode = async
}
## database store property
db {
## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp) etc.
datasource = "dbcp"
## mysql/oracle/h2/oceanbase etc.
dbType = "mysql"
driverClassName = "com.mysql.jdbc.Driver"
url = "jdbc:mysql://127.0.0.1:3306/seata"
user = "mysql"
password = "mysql"
minConn = 1
maxConn = 10
globalTable = "global_table"
branchTable = "branch_table"
lockTable = "lock_table"
queryLimit = 100
}
}
## server configuration, only used in server side
server {
recovery {
#schedule committing retry period in milliseconds
committingRetryPeriod = 1000
#schedule asyn committing retry period in milliseconds
asynCommittingRetryPeriod = 1000
#schedule rollbacking retry period in milliseconds
rollbackingRetryPeriod = 1000
#schedule timeout retry period in milliseconds
timeoutRetryPeriod = 1000
}
undo {
logSaveDays = 7
#schedule delete expired undo_log in milliseconds
logDeletePeriod = 86400000
}
#unit ms,s,m,h,d represents milliseconds, seconds, minutes, hours, days, default permanent
maxCommitRetryTimeout = "-1"
maxRollbackRetryTimeout = "-1"
rollbackRetryTimeoutUnlockEnable = false
}
## metrics configuration, only used in server side
metrics {
enabled = false
registryType = "compact"
# multi exporters use comma divided
exporterList = "prometheus"
exporterPrometheusPort = 9898
}
registry.conf:
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "eureka"
nacos {
serverAddr = "localhost"
namespace = ""
cluster = "default"
}
eureka {
serviceUrl = "http://127.0.0.1:8761/eureka"
application = "default"
weight = "1"
}
redis {
serverAddr = "localhost:6379"
db = "0"
}
zk {
cluster = "default"
serverAddr = "127.0.0.1:2181"
session.timeout = 6000
connect.timeout = 2000
}
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,在这里使用文件存储
type = "file"
nacos {
serverAddr = "localhost"
namespace = ""
group = "SEATA_GROUP"
}
consul {
serverAddr = "127.0.0.1:8500"
}
apollo {
app.id = "seata-server"
apollo.meta = "http://192.168.1.204:8801"
namespace = "application"
}
zk {
serverAddr = "127.0.0.1:2181"
session.timeout = 6000
connect.timeout = 2000
}
etcd3 {
serverAddr = "http://localhost:2379"
}
file {
name = "file.conf"
}
}
在bin下点击seata-server.bat启动:
再去eureka看是否有default服务注册上去
再看idea控制台:
已经没有报错信息了,表示成功。
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no available service 'null' found, please make sure registry config co
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