试了下压缩后的zip文件如果小于1M上传是正常的，超过就不行。不知道是否有地方可以设置，看了文档但是没找到这方面的信息。

测试题目是https://loj.ac/p/100
测试时的代码是：
// import io, os
// input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
// mod = 10**9+7
// n, p, m = [int(i) for i in input().split())]
// A = [[int(j) for j in input().split()] for i in range(n)]
// B = [[int(j) for j in input().split()] for i in range(p)]
// for i in range(n):
// ri = [0]m
// for k in range(p):
// s, bk = A[i][k], B[k]
// for j in range(m):
// ri[j] = (ri[j]+sbk[j])%mod
// print(*ri)
#include
#include
#include
using namespace std;

const long long MOD = 1000000007;
const long long T = MOD << 32;

int main() {
long long n, p, m;
cin >> n >> p >> m;
long long A[n][p], B[p][m];

for (long long i = 0; i < n; ++i)
    for (long long j = 0; j < p; ++j) {
        cin >> A[i][j];
        A[i][j] = (A[i][j] + T) % MOD;
    }

for (long long i = 0; i < p; ++i)
    for (long long j = 0; j < m; ++j) {
        cin >> B[i][j];
        B[i][j] = (B[i][j] + T) % MOD;
    }

for (long long i = 0; i < n; ++i) {
    long long ri[m];
    fill(ri, ri + m, 0);

    for (long long k = 0; k < p; ++k) {
        for (long long j = 0; j < m; ++j) {
            ri[j] += A[i][k] * B[k][j];
            ri[j] %= MOD;
        }
    }

    for (long long j = 0; j < m; ++j)
        cout << ri[j] << ' ';

    cout << endl;
}

return 0;

}

最近學校要舉辦團體賽，想請問HOJ是否有團體賽的功能

不知道这个想法是否可行，类似于力扣那种提交代码旁边有个执行代码，可以来测试用例。如果不行就请忽略，谢谢。

你好大佬，我想请教一下如何进行输出文件与标答的比对，然后怎么用go-judge进行特判和交互题的，能帮我点一点思路吗，感激不尽

环境：

Node.js v20.15.0

[email protected]

windows 11

使用淘宝源(https://registry.npmmirror.com)

问题现象：

npm install执行后一直转圈，无法安装

删除hoj-vue/package-lock.json后问题解决

运行npm run build

报错，详情见附件的log.txt

附件：

log.txt

当前的建议：

1. 附上可build该项目的开发环境的版本

2. 在hoj-vue/.gitignore里面添加一行：

package-lock.json

避免坑其它开发者

502错误了

您好，我在新增題目時有時網頁會卡住，並且回傳請求超時的訊息

ACM排名下提交总数正常
OI排名下提交总数明显偏多
（数过）

题库作答语言可以增加一些，比如：Rust等等，支持增加导入多方题库（目前的题库难度偏低了一些），还有就是支持代码调试以及代码可视化，还有就是用户界面希望支持夜间模式

rt

大佬您好，我是台灣的學生（因此沒辦法用QQ)跟您聯繫。我想請問這個平台的remote judge是否支援codeforces中的mashup

如题，自己已经有一个mysql容器，不想重复部署mysql

如果是从docker 转物理部署，警告，记得把比赛 PROCEDURE 程序 也同步一下。

/sqlAndsetting/hoj.sql#L1067

我想问一下Codeforces中的题号怎么看，gym题号输入什么？谢谢 @HimitZH

建议添加题目/竞赛 PDF 下载功能 和 笔试功能

每当重启DataBackup后，JudgeDispatcher的judgeToken（hoj.judge.token）值还是上一次的值，本次启动推送到nacos的新的judgeToken没有动态刷新，导致调用在线测评时，judgeServer端报：对不起！您使用的判题服务调用凭证不正确！访问受限！

比如我登root，点开我的首页显示的是别人的首页，提交记录啥的也全是别人的。刚部署完这个问题不是很频繁，最近几乎每次隔一段时间重新进入网站都会出现点开首页是别人或者显示uid不能为空（这个估计是因为别人串到我的账号上去了，所以我这进来再看首页就是空的），重新登录得过两分钟才恢复正常，求问大佬这个可能是因为什么原因，该怎么调，最近几乎每个人隔一段时间就会串，每次进都得重新登录等两分钟

@HimitZH
感谢你优秀的开源项目！

请问下这种问题怎么解决呢？

Creating network "standalone_hoj-network" with driver "bridge"
Creating network "standalone_default" with the default driver
Creating hoj-autohealth ... 
Creating hoj-redis      ... 
Creating hoj-mysql      ... 
Creating hoj-mysql      ... error
WARNING: Host is already in use by another container

ERROR: for hoj-mysql  Cannot start service hoj-mysql: driver failed programming external connectivity on endpoint hoj-mysql (54a5c7101ee106d79c8e8dc15293223628d69f6cafb76bf48ff17fb64cd2eefb): Error starting userland proxy: listen tcp4 0.0.0.0:3306: bind: address already in use
Creating hoj-autohealth ... done
Creating hoj-redis      ... done
ERROR: for hoj-frontend  Cannot start service hoj-frontend: driver failed programming external connectivity on endpoint hoj-frontend (4d5a6b634d1a24d594a98f84913bef3cf632dfb7dcd8491f4ed0125996fa1907): Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use

ERROR: for hoj-mysql  Cannot start service hoj-mysql: driver failed programming external connectivity on endpoint hoj-mysql (54a5c7101ee106d79c8e8dc15293223628d69f6cafb76bf48ff17fb64cd2eefb): Error starting userland proxy: listen tcp4 0.0.0.0:3306: bind: address already in use

ERROR: for hoj-frontend  Cannot start service hoj-frontend: driver failed programming external connectivity on endpoint hoj-frontend (4d5a6b634d1a24d594a98f84913bef3cf632dfb7dcd8491f4ed0125996fa1907): Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use
ERROR: Encountered errors while bringing up the project.

尊敬的开发者您好，最近在阅读您的项目代码，存在一个疑问，希望您能在闲暇之余给予解惑。

对于一个评测请求发送到Redis中对应的等待队列后，将会调用判题服务：

if (isContest) {
    isOk = redisUtils.llPush(Constants.Queue.CONTEST_JUDGE_WAITING.getName(), JSONUtil.toJsonStr(task));
} else {
    isOk = redisUtils.llPush(Constants.Queue.GENERAL_JUDGE_WAITING.getName(), JSONUtil.toJsonStr(task));
}
...
// 调用判题任务处理
judgeReceiver.processWaitingTask();

在 judgeReceiver.processWaitingTask() 方法中按照（比赛、评测、调试）优先级处理Redis等待队列中的任务（通过redisUtils.lrPop(queue)获取并删除等待队列中一个任务），然后在handleJudgeMsg方法中处理：

public void handleJudgeMsg(String taskStr, String queueName) {
        ...

    // 调用判题服务
    dispatcher.dispatch(Constants.TaskType.JUDGE, new ToJudgeDTO()
            .setJudge(judge)
            .setToken(token)
            .setRemoteJudgeProblem(null));
        ...
    // 接着处理任务
    processWaitingTask();
}

最后，代码来到defaultJudge方法，该方法是向判题机发送请求并处理重试判题的方法，在该方法中定义了一个用于每间隔2秒重复执行的任务
scheduler.scheduleWithFixedDelay(getResultTask, 0, 2, TimeUnit.SECONDS);
然而在任务代码中，releaseTaskThread(taskKey)方法是用于该任务释放的，可是这个代码却放在finally代码块中，这意味着无论该任务执行成功与否，在finally代码块中都会将该任务关闭，然而此时Redis的等待队列中已经将该任务删除，因此我好奇如何进行任务执行的重试操作

public void defaultJudge(ToJudgeDTO data, String path) {

        Runnable getResultTask = () -> {
            if (count.get() > maxTryNum) {
                releaseTaskThread(taskKey);
                return;
            }
            if (judgeServer != null) { 
            ...
                try {
                   ...
                } catch (Exception e) {
                    ...
                } finally {
                    ...
                    releaseTaskThread(taskKey);
                }
            }
        };
        ScheduledFuture<?> scheduledFuture = scheduler.scheduleWithFixedDelay(getResultTask, 0, 2, TimeUnit.SECONDS);
        futureTaskMap.put(taskKey, scheduledFuture);
    }

当然也很有可能是我理解错误或者部分代码没有注意到，总之，期待您的回复。

前端所用正则不能识别域名后缀有4个字母的..

代码位置

可以使用这里的正则
https://github.com/dromara/hutool/blob/c36f9f55db1c271966863c1dd397a9f29678e837/hutool-core/src/main/java/cn/hutool/core/lang/RegexPool.java#L51

咱们这个多个判题机是每100s拉取主服务rsync-master的所有评测数据？那主服务器带宽小点不是直接瘫掉了？
如果是这样同步数据的话，这操作有点吓人。。。

如题

尝试在nacos注册多个服务
mysql报错"too many connections"

建议未来添加这个功能

判题机judger的代码准备开源吗？还是已经开源了我看漏了？

希望作者修改下docker-compose.yml

为hoj-autohealth:字段添加环境变量

把

    environment:
      - AUTOHEAL_CONTAINER_LABEL=all

改成

    environment:
      - AUTOHEAL_CONTAINER_LABEL=all
      - AUTOHEAL_START_PERIOD=300

也就是5分钟后再开始检查

否则如果使用J1900 CPU或类似性能的小主机部署，启动Nacos到一半就会直接被认为不健康然后杀死容器，进而导致服务完全不可用

新增题目后端返回403

請問對指定用戶發送通知的功能是被關掉了還是還沒有做？

进docker看了下日志，提示如下信息。不知道是不是我操作不对

2021-10-05 17:16:05 [http-nio-6688-exec-3] ERROR hoj - 系统通用异常-------------->org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'null' in 'class top.hcode.hoj.pojo.entity.UserRole' at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:78)

貌似不可行，rsync-slave服务与rsync-master存在端口冲突

rt, 比赛开始前管理员提交的代码进行rejudge后, 会一直卡在pending. 而比赛中提交的代码则可以正常运行.

开发者您好，我是Sean。
作为一名网络安全工程师，以及HOJ的忠实用户，我不得不提示您：CodeForces启用了Cloudflare的网络保护。这将会导致部分RemoteJudge出现提交失败和无法获取评测结果的情况。望知悉。
另：Atcoder和SPOJ目前尚未启用。但是我向他们的Dev Team了解，不排除启用自制的保护功能。

项目重启后， 运行自测试出现了这个问题， 请问有什么排查思路吗？

从技术角度，这么好的OJ,应该让知道的人更多！
给作者点赞！

2023-10-11 16:43:52 [http-nio-6688-exec-3] ERROR hoj - 系统通用异常-------------->java.lang.NullPointerException
at top.hcode.hoj.manager.admin.contest.AdminContestManager.getContest(AdminContestManager.java:82)
at top.hcode.hoj.service.admin.contest.impl.AdminContestServiceImpl.getContest(AdminContestServiceImpl.java:36)
at top.hcode.hoj.controller.admin.AdminContestController.getContest(AdminContestController.java:65)
at top.hcode.hoj.controller.admin.AdminContestController$$FastClassBySpringCGLIB$$cdf3b1d5.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor$1.proceed(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:82)
at org.apache.shiro.authz.aop.AuthorizingMethodInterceptor.invoke(AuthorizingMethodInterceptor.java:39)
at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor.invoke(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:115)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
at top.hcode.hoj.controller.admin.AdminContestController$$EnhancerBySpringCGLIB$$87edd035.getContest()
at top.hcode.hoj.controller.admin.AdminContestController$$FastClassBySpringCGLIB$$cdf3b1d5.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor$1.proceed(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:82)
at org.apache.shiro.authz.aop.AuthorizingMethodInterceptor.invoke(AuthorizingMethodInterceptor.java:39)
at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor.invoke(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:115)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
at top.hcode.hoj.controller.admin.AdminContestController$$EnhancerBySpringCGLIB$$e1c49101.getContest()
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:112)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:109)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)

前端显示不对啊，正常情况不是应该仅显示中间这部分吗？

批量上传个题目，包含输入输出用例，用户会自动解压到/hoj/testcase目录下。在执行提交测评时会提示"System error"。如图：

按照控制台日志提示，排查到test_case不存在。如图：

在跟踪测试用例执行过程中，发现执行器会在.judge/test_case目录下查找测试用例。上传的测试用例在/hoj/testcase目录下。
请问是缺失哪个流程或者代码没有执行。
服务器没有使用docker部署，使用的是linux本地化部署。

您好，我想问一下是否考虑编译Arm64的docker镜像？

因为sandbox支持arm64，我通过HOJ-Deploy仓库自己改了一下Dockerfile编译了arm64的镜像，并且已经持续稳定的运行了一年，希望能发布一下官方的镜像，不然每次修改源码后需要自己重新编译还挺麻烦的