codingapi / codingapi/tx-lcn

5.0.2版本提交分布式事务后,第一次提交成功了,但数据一直未提交,后面提交就锁表了

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Beschreibung

1.控制器
@DS(value = Constants.DEFAULT_DS)
@RequestMapping(value = "/registerCompany", method = RequestMethod.POST)
@ApiOperation(value = "注册公司", httpMethod = "POST", notes = "注册公司", produces = "application/json;charset=UTF-8")
public SoulResult registerCompany() {
CompanyDO company = new CompanyDO();
company.setName("网易集团");
company.setManagerId("12345678");
company.setVersion("1.0");
company.setAuditState("0");
company.setState(1);
company.setBalance(0.00);
company.setCreateTime(new Date());
company.setTenantId("2");
Integer register = distributionService.register(company);
if (register == 1) {
return SoulResult.success("注册成功!");
} else {
return SoulResult.warn("注册失败,事务回滚!");
}
}

2. 事务发起方
@Transactional
@LcnTransaction(propagation = DTXPropagation.REQUIRED)
public Integer register(CompanyDO company) {
// execute remote transaction
Map param = new HashMap();
param.put("id", idWorker.nextId());
param.put("account", "1000000");
param.put("balance", 5000.00);
param.put("currencyType", "CNY");
SoulResult remote = client.registerAccount(param);
if (remote.isSuccess()) {
// execute local transaction
return companyMapper.insert(company);
} else {
throw new RuntimeException("register Failed !");
}
}

3.事务参与方
@FeignClient(name = Const.SERVICE_ID_BIZ_PRODUCE, configuration = FeiginConfig.class, fallback = BizProduceFallback.class)
public interface MicroServiceRouteBizProduceClient {

@PutMapping("/authenticationApi/account/registerAccount")
public SoulResult registerAccount(@RequestParam() Map param);

}
@Transactional
@LcnTransaction(propagation = DTXPropagation.SUPPORTS)
public Integer addAccount(Account account) {

return accountMapper.insert(account);
}

日志:
发起方日志:
Reading [class com.ymy.xxb.migrat.common.result.SoulResult] as "application/json;charset=UTF-8" using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@1cd8b479]
2020-08-20 16:06:08.911 DEBUG 15096 --- [ XNIO-3 task-5] org.mybatis.spring.SqlSessionUtils : Creating a new SqlSession
2020-08-20 16:06:08.912 DEBUG 15096 --- [ XNIO-3 task-5] org.mybatis.spring.SqlSessionUtils : Registering transaction synchronization for SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@78709ef5]
2020-08-20 16:06:08.913 DEBUG 15096 --- [ XNIO-3 task-5] o.m.s.t.SpringManagedTransaction : JDBC Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@2a195c9f] will be managed by Spring
2020-08-20 16:06:08.915 INFO 15096 --- [ XNIO-3 task-5] c.y.x.m.auth.shiro.filter.SqlFilter : request method :com.ymy.xxb.migrat.auth.shiro.mapper.CompanyMapper.insert
2020-08-20 16:06:08.915 DEBUG 15096 --- [ XNIO-3 task-5] c.y.x.m.a.s.mapper.CompanyMapper.insert : ==> Preparing: insert into co_company ( name, manager_id, version, audit_state, state, balance, create_time ) values ( ?, ?, ?, ?, ?, ?, ? )
2020-08-20 16:06:08.918 DEBUG 15096 --- [ XNIO-3 task-5] c.y.x.m.a.s.mapper.CompanyMapper.insert : ==> Parameters: 网易集团(String), 12345678(String), 1.0(String), 0(String), 1(Integer), 0.0(Double), 2020-08-20 16:06:08.622(Timestamp)
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] c.y.x.m.a.s.mapper.CompanyMapper.insert : <== Updates: 1
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] c.a.druid.pool.PreparedStatementPool : {conn-210005, pstmt-220000} enter cache
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] org.mybatis.spring.SqlSessionUtils : Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@78709ef5]
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] org.mybatis.spring.SqlSessionUtils : Transaction synchronization committing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@78709ef5]
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] org.mybatis.spring.SqlSessionUtils : Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@78709ef5]
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] org.mybatis.spring.SqlSessionUtils : Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@78709ef5]
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] o.s.j.d.DataSourceTransactionManager : Initiating transaction commit
2020-08-20 16:06:08.932 DEBUG 15096 --- [ XNIO-3 task-5] o.s.j.d.DataSourceTransactionManager : Committing JDBC transaction on Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@2a195c9f]
2020-08-20 16:06:08.933 DEBUG 15096 --- [ XNIO-3 task-5] o.s.j.d.DataSourceTransactionManager : Releasing JDBC Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@2a195c9f] after transaction
2020-08-20 16:06:08.933 DEBUG 15096 --- [ XNIO-3 task-5] o.s.jdbc.datasource.DataSourceUtils : Returning JDBC Connection to DataSource
2020-08-20 16:06:08.934 DEBUG 15096 --- [ XNIO-3 task-5] c.c.txlcn.tc.core.DTXServiceExecutor : business success @group(b63bca12a9537)
2020-08-20 16:06:08.934 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.t.TransactionControlTemplate : notify group > transaction type: lcn, state: 1. @group(b63bca12a9537)
2020-08-20 16:06:08.934 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.txmsg.netty.bean.SocketManager : get channel, key:/127.0.0.1:8070
2020-08-20 16:06:08.934 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.txmsg.netty.bean.SocketManager : await response
2020-08-20 16:06:08.934 DEBUG 15096 --- [ntLoopGroup-5-1] c.c.t.txmsg.netty.handler.RpcCmdEncoder : send->{"key":"b63bca0639537","msg":{"action":"notifyGroup","data":{"groupId":"b63bca12a9537","state":1},"groupId":"b63bca12a9537","state":100},"remoteKey":"/127.0.0.1:8070"}
2020-08-20 16:06:08.943 DEBUG 15096 --- [ntLoopGroup-5-1] c.c.t.txmsg.netty.handler.RpcCmdDecoder : cmd->{"key":"b63bca0639537","msg":{"action":"notifyGroup","data":1,"groupId":"b63bca12a9537","state":200},"remoteKey":"/127.0.0.1:42409"}
2020-08-20 16:06:08.944 DEBUG 15096 --- [ntLoopGroup-5-1] c.c.t.txmsg.netty.handler.RpcCmdDecoder : got response message[Netty Handler]
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.txlcn.txmsg.netty.bean.NettyRpcCmd : got response. b63bca0639537
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.txmsg.netty.bean.SocketManager : response is: MessageDto(action=notifyGroup, groupId=b63bca12a9537, data=1, state=200)
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.txmsg.netty.impl.NettyRpcClient : cmd request used time: 10 ms
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.txlcn.tc.txmsg.LoopMessenger : request action: notifyGroup. TM[/127.0.0.1:8070]
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.t.TransactionCleanTemplate : clean transaction @group(b63bca12a9537)
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] o.s.b.f.s.DefaultListableBeanFactory : Returning cached instance of singleton bean 'lcnTransactionCleanService'
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.t.l.r.LcnConnectionProxy : commit transaction type[lcn] proxy connection:com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@2a195c9f.
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.t.l.r.LcnConnectionProxy : transaction type[lcn] proxy connection:com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@2a195c9f closed.
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.t.TransactionCleanTemplate : clean transaction over @group(b63bca12a9537)
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.t.TransactionControlTemplate : notify group exception state 1. @group(b63bca12a9537)
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.t.c.context.DefaultGlobalContext : Destroy TxContext[b63bca12a9537]
2020-08-20 16:06:08.944 DEBUG 15096 --- [ XNIO-3 task-5] c.c.txlcn.tc.core.DTXLocalContext : clean thread local[DTXLocalContext]: DTXLocalContext(transactionType=lcn, groupId=b63bca12a9537, unitId=24f9688a886742a84531c4c3ed5265e4, resource=null, destroy=true, inGroup=false, attachment=null, sysTransactionState=1, userTransactionState=-1, proxy=true, justNow=false, proxyTmp=false)
2020-08-20 16:06:08.945 DEBUG 15096 --- [ XNIO-3 task-5] c.c.t.tc.aspect.weave.DTXLogicWeaver :
<---- TxLcn end ---->

被调用放日志:
Returning cached instance of singleton bean 'accountController'
2020-08-20 16:06:08.867 DEBUG 16924 --- [ XNIO-2 task-6] com.codingapi.txlcn.tracing.Tracings : tracing apply group:b63bca12a9537, app map:e30=
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.tc.aspect.weave.DTXLogicWeaver : <---- TxLcn start ---->
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.context.DefaultGlobalContext : Start TxContext[b63bca12a9537]
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] o.s.b.f.s.DefaultListableBeanFactory : Returning cached instance of singleton bean 'control_lcn_running'
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] c.c.txlcn.tc.core.DTXServiceExecutor : pre business code, unit type: lcn @group(b63bca12a9537)
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] o.s.j.d.DataSourceTransactionManager : Creating new transaction with name [com.ymy.xxb.migrat.module.biz.produce.service.AccountService.addAccount]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] o.s.b.f.s.DefaultListableBeanFactory : Returning cached instance of singleton bean 'transaction_lcn'
2020-08-20 16:06:08.868 DEBUG 16924 --- [ XNIO-2 task-6] o.s.b.f.s.DefaultListableBeanFactory : Returning cached instance of singleton bean 'transaction_lcn'
2020-08-20 16:06:08.874 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.tc.aspect.weave.DTXResourceWeaver : proxy a sql connection: com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@524d06d6.
2020-08-20 16:06:08.874 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.tc.aspect.weave.DTXResourceWeaver : proxy a sql connection: com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@369a6648.
2020-08-20 16:06:08.874 DEBUG 16924 --- [ XNIO-2 task-6] o.s.j.d.DataSourceTransactionManager : Acquired Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@369a6648] for JDBC transaction
2020-08-20 16:06:08.874 DEBUG 16924 --- [ XNIO-2 task-6] org.mybatis.spring.SqlSessionUtils : Creating a new SqlSession
2020-08-20 16:06:08.874 DEBUG 16924 --- [ XNIO-2 task-6] org.mybatis.spring.SqlSessionUtils : Registering transaction synchronization for SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@647bce95]
2020-08-20 16:06:08.875 DEBUG 16924 --- [ XNIO-2 task-6] o.m.s.t.SpringManagedTransaction : JDBC Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@369a6648] will be managed by Spring
2020-08-20 16:06:08.875 INFO 16924 --- [ XNIO-2 task-6] c.y.x.m.auth.shiro.filter.SqlFilter : request method :com.ymy.xxb.migrat.module.biz.produce.mapper.AccountMapper.insert
2020-08-20 16:06:08.875 DEBUG 16924 --- [ XNIO-2 task-6] c.y.x.m.m.b.p.m.AccountMapper.insert : ==> Preparing: insert into co_account ( id, account, balance, currency_type ) values ( ?, ?, ?, ? )
2020-08-20 16:06:08.876 DEBUG 16924 --- [ XNIO-2 task-6] c.y.x.m.m.b.p.m.AccountMapper.insert : ==> Parameters: 1296357839133253632(String), 1000000(String), 5000.0(Double), CNY(String)
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] c.y.x.m.m.b.p.m.AccountMapper.insert : <== Updates: 1
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] c.a.druid.pool.PreparedStatementPool : {conn-10004, pstmt-20001} enter cache
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] org.mybatis.spring.SqlSessionUtils : Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@647bce95]
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] org.mybatis.spring.SqlSessionUtils : Transaction synchronization committing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@647bce95]
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] org.mybatis.spring.SqlSessionUtils : Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@647bce95]
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] org.mybatis.spring.SqlSessionUtils : Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@647bce95]
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] o.s.j.d.DataSourceTransactionManager : Initiating transaction commit
2020-08-20 16:06:08.890 DEBUG 16924 --- [ XNIO-2 task-6] o.s.j.d.DataSourceTransactionManager : Committing JDBC transaction on Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@369a6648]
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] o.s.j.d.DataSourceTransactionManager : Releasing JDBC Connection [com.codingapi.txlcn.tc.core.transaction.lcn.resource.LcnConnectionProxy@369a6648] after transaction
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] o.s.jdbc.datasource.DataSourceUtils : Returning JDBC Connection to DataSource
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] c.c.txlcn.tc.core.DTXServiceExecutor : business success @group(b63bca12a9537)
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.t.l.c.LcnRunningTransaction : join group: [GroupId: b63bca12a9537,Method: public java.lang.Integer com.ymy.xxb.migrat.module.biz.produce.service.AccountService.addAccount(com.ymy.xxb.migrat.module.biz.produce.entity.Account)]
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.t.TransactionControlTemplate : join group > transaction type: lcn @group(b63bca12a9537)
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.txmsg.netty.bean.SocketManager : get channel, key:/127.0.0.1:8070
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.txmsg.netty.bean.SocketManager : await response
2020-08-20 16:06:08.892 DEBUG 16924 --- [ntLoopGroup-5-1] c.c.t.txmsg.netty.handler.RpcCmdEncoder : send->{"key":"b63bca01ee537","msg":{"action":"joinGroup","data":{"groupId":"b63bca12a9537","transactionState":1,"unitId":"0075d1de892d584dc599662f35f55e57","unitType":"lcn"},"groupId":"b63bca12a9537","state":100},"remoteKey":"/127.0.0.1:8070"}
2020-08-20 16:06:08.896 DEBUG 16924 --- [ntLoopGroup-5-1] c.c.t.txmsg.netty.handler.RpcCmdDecoder : cmd->{"key":"b63bca01ee537","msg":{"action":"joinGroup","groupId":"b63bca12a9537","state":200},"remoteKey":"/127.0.0.1:42410"}
2020-08-20 16:06:08.896 DEBUG 16924 --- [ntLoopGroup-5-1] c.c.t.txmsg.netty.handler.RpcCmdDecoder : got response message[Netty Handler]
2020-08-20 16:06:08.896 DEBUG 16924 --- [ XNIO-2 task-6] c.c.txlcn.txmsg.netty.bean.NettyRpcCmd : got response. b63bca01ee537
2020-08-20 16:06:08.896 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.txmsg.netty.bean.SocketManager : response is: MessageDto(action=joinGroup, groupId=b63bca12a9537, data=null, state=200)
2020-08-20 16:06:08.896 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.txmsg.netty.impl.NettyRpcClient : cmd request used time: 5 ms
2020-08-20 16:06:08.896 DEBUG 16924 --- [ XNIO-2 task-6] c.c.txlcn.tc.txmsg.LoopMessenger : request action: joinGroup. TM[/127.0.0.1:8070]
2020-08-20 16:06:08.897 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.t.TransactionControlTemplate : join group message over. @group(b63bca12a9537)
2020-08-20 16:06:08.897 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.core.checking.SimpleDTXChecking : start delay checking task @group(b63bca12a9537)
2020-08-20 16:06:08.897 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.t.TransactionControlTemplate : join group logic over @group(b63bca12a9537)
2020-08-20 16:06:08.897 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.context.DefaultGlobalContext : Destroy TxContext[b63bca12a9537]
2020-08-20 16:06:08.897 DEBUG 16924 --- [ XNIO-2 task-6] c.c.txlcn.tc.core.DTXLocalContext : clean thread local[DTXLocalContext]: DTXLocalContext(transactionType=lcn, groupId=b63bca12a9537, unitId=0075d1de892d584dc599662f35f55e57, resource=null, destroy=true, inGroup=false, attachment=null, sysTransactionState=1, userTransactionState=-1, proxy=true, justNow=false, proxyTmp=false)
2020-08-20 16:06:08.897 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.tc.aspect.weave.DTXLogicWeaver :
<---- TxLcn end ---->

TM配置:
spring.application.name=TransactionManager
server.port=7970
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.0.59:3306/tx-manager?characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=blycs888
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.ddl-auto=update

mybatis.configuration.map-underscore-to-camel-case=true
mybatis.configuration.use-generated-keys=true

# TxManager Host Ip
tx-lcn.manager.host=127.0.0.1
# TxClient连接请求端口
tx-lcn.manager.port=8070
# 心跳检测时间(ms)
tx-lcn.manager.heart-time=15000
# 分布式事务执行总时间
tx-lcn.manager.dtx-time=60000
#参数延迟删除时间单位ms
tx-lcn.message.netty.attr-delay-time=10000
tx-lcn.manager.concurrent-level=128
tx-lcn.manager.admin-key=123456
#tx-lcn.manager.ex-url=/provider/email-to/1610651717@qq.com
# 开启日志
tx-lcn.logger.enabled=true
tx-lcn.logger.driver-class-name=com.mysql.jdbc.Driver
tx-lcn.logger.jdbc-url=jdbc:mysql://192.168.0.59:3306/tx-manager?characterEncoding=UTF-8
tx-lcn.logger.username=root
tx-lcn.logger.password=blycs888

logging.level.com.codingapi=debug
#redis 主机
spring.redis.host=192.168.12.42
#redis数据库
spring.redis.database=10
#redis 端口
spring.redis.port=6379
#redis 密码
spring.redis.password=bly@xxb_o2o_myRedis

环境:
1. druid 多数据源
2.nacos作为注册中心

日志中 join group: [GroupId: b63bca12a9537,Method: public java.lang.Integer com.ymy.xxb.migrat.module.biz.produce.service.AccountService.addAccount(com.ymy.xxb.migrat.module.biz.produce.entity.Account)]
2020-08-20 16:06:08.891 DEBUG 16924 --- [ XNIO-2 task-6] c.c.t.t.c.t.TransactionControlTemplate : join group > transaction type: lcn @group(b63bca12a9537)

也是能看到的,但数据就是没提交到数据库中,然后就锁死了,帮忙看下,太郁闷了.....

Beitragsleitfaden

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Rechercherichtung

Start by tracing registerCompany, the transactional register method, and the addAccount participant alongside the provided initiator and participant logs. Reproduce the first submission and subsequent lock, then identify why the distributed transaction does not commit and verify that later submissions no longer retain the table lock.

Vom Indexierungsmodell aus dem Issue-Text verfasst.

Bewertung

Tech-Stack
java, spring
Bereich
backend, distributed-systems
Issue-Typ
Bug
Schwierigkeit
4/5
Geschätzter Aufwand
3-5 Tage
Aktivitätsstatus
Veraltet
Klarheit
Größtenteils klar
Anfängerfreundlichkeit
30/100

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