Question

我有一组生产者和消费者，两者都实现为zactors。消费者绑定到 inproc 端点，每个生产者连接到其他所有消费者。

有一点，似乎ZeroMQ无法再创建套接字或连接_{（我不确定是哪个）。}

最小的工作示例：

#include "czmq.h"

void source_t(zsock_t * pipe, void *args);
void sink_t(zsock_t * pipe, void *args);

int main(int argc, char *argv[]){
    zsys_init();
    printf("Max sockets = %d\n", zsys_socket_limit());
    int num_sources = atoi(argv[1]);
    int num_sinks = atoi(argv[2]);

    /** Create sinks */
    zactor_t *sinks[num_sources];
    for (int i = 0; i < num_sources; i++){
        sinks[i] = zactor_new(sink_t, (void *)(&i));
        assert(sinks[i]);
    }

    /** Create sources */
    zactor_t *sources[num_sources];
    for (int i = 0; i < num_sources; i++){
        sources[i] = zactor_new(source_t, (void *)(&i));
        assert(sources[i]);
        zsock_send(sources[i], "i", num_sinks);
        zsock_wait(sources[i]);
    }
    return 0;
}

void source_t(zsock_t * pipe, void *args){
    const int id = *((int *)args);
    zsock_signal(pipe, 0);
    int num_sinks;
    zsock_recv(pipe, "i", &num_sinks);
    zsock_t * transmitters[num_sinks];
    for (int i = 0; i < num_sinks; i++){
        transmitters[i] = zsock_new(ZMQ_PUSH);
        if(transmitters[i] == NULL){
            printf( "Source %d could not create socket %d because %s\n",
                    id, i, strerror(errno)
                    );
            assert(false); ////// Here's where it fails ___________________
        }
        int rc = zsock_connect(transmitters[i], "inproc://snk%d", i);
        if (rc != 0){
            printf("Source %d could not connect to sink %d because %s\n", id, i, strerror(errno));
            assert(false);
        }
    }
    zsock_signal(pipe, 0);
}

void sink_t(zsock_t * pipe, void *args){
    const int id = *((int *)args);
    zsock_t * receiver = zsock_new(ZMQ_PULL);
    assert(receiver);
    int rc = zsock_bind(receiver, "inproc://snk%d", id);
    assert(rc == 0);
    zsock_signal(pipe, 0);
    while (true){
        zsock_recv(receiver, "z");
    }
}

我在Linux上运行了30个生产者和30个消费者，但它失败了。我的打开文件限制是6144。

这是我的输出：

$ ZprocTest 30 30
Max sockets = 65535
Source 29 could not create socket 4 because Socket operation on non-socket
ZprocTest: ../src/ZprocTest.cpp:43: void source_t(zsock_t*, void*): Assertion `false' failed.
Aborted

是否还有其他人遇到类似问题或能否对此有所了解？

一旦创建了太多[inproc：//]连接，ZeroMQ / czmq是否会失败？

0 个答案: