Ruby on Rails-在域中运行时应用程序无法正常运行

Question

我的Ruby on Rails应用程序出现问题。

当我以rails s -b 127.0.0.1 -p 3000运行该应用程序时，它按预期运行。 如果我运行lsof -wni tcp:3000 （在另一个终端上），我得到：

COMMAND   PID  USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
ruby    13265 tamer   14u  IPv4 1686252872      0t0  TCP 127.0.0.1:hbci (LISTEN)

但是，如果我以rails s -b 127.0.0.1 -p 3000 -d运行应用程序，则在浏览器中无法获得完整的响应，如果运行lsof -wni tcp:3000我会得到：

COMMAND   PID  USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
ruby    12700 tamer   14u  IPv4 1686177850      0t0  TCP 127.0.0.1:hbci (LISTEN)
ruby    12700 tamer   19u  IPv4 1686181848      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27643 (ESTABLISHED)
ruby    12700 tamer   25u  IPv4 1686181409      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27623 (ESTABLISHED)
ruby    12700 tamer   26u  IPv4 1686181417      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27625 (ESTABLISHED)
ruby    12700 tamer   27u  IPv4 1686181425      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27627 (ESTABLISHED)
ruby    12700 tamer   28u  IPv4 1686181458      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27629 (ESTABLISHED)
ruby    12700 tamer   29u  IPv4 1686181459      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27631 (ESTABLISHED)
ruby    12700 tamer   30u  IPv4 1686181460      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27633 (ESTABLISHED)
ruby    12700 tamer   31u  IPv4 1686181461      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27635 (ESTABLISHED)
ruby    12700 tamer   32u  IPv4 1686182162      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27651 (ESTABLISHED)
ruby    12700 tamer   33u  IPv4 1686181463      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27639 (ESTABLISHED)
ruby    12700 tamer   34u  IPv4 1686181465      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27641 (ESTABLISHED)
ruby    12700 tamer   35u  IPv4 1686181849      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27645 (ESTABLISHED)
ruby    12700 tamer   36u  IPv4 1686181851      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27647 (ESTABLISHED)
ruby    12700 tamer   37u  IPv4 1686181852      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27649 (ESTABLISHED)
ruby    12700 tamer   38u  IPv4 1686182163      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27653 (ESTABLISHED)
ruby    12700 tamer   39u  IPv4 1686182177      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27657 (ESTABLISHED)
ruby    12700 tamer   40u  IPv4 1686182178      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27659 (ESTABLISHED)
ruby    12700 tamer   41u  IPv4 1686182179      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27661 (ESTABLISHED)
ruby    12700 tamer   42u  IPv4 1686182180      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27665 (ESTABLISHED)
ruby    12700 tamer   43u  IPv4 1686182181      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27667 (ESTABLISHED)
ruby    12700 tamer   44u  IPv4 1686182182      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27669 (ESTABLISHED)
ruby    12700 tamer   45u  IPv4 1686182183      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27671 (ESTABLISHED)
ruby    12700 tamer   46u  IPv4 1686182184      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27673 (ESTABLISHED)
ruby    12700 tamer   47u  IPv4 1686182185      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27675 (ESTABLISHED)
ruby    12700 tamer   48u  IPv4 1686182186      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27677 (ESTABLISHED)
ruby    12700 tamer   49u  IPv4 1686182187      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27679 (ESTABLISHED)
ruby    12700 tamer   50u  IPv4 1686182188      0t0  TCP 127.0.0.1:hbci->127.0.0.1:27681 (ESTABLISHED)

此问题的原因是什么以及如何解决它

我正在使用ruby 2.5.0p0和Rails 5.1.5 。 服务器操作系统是CentOS 7 。

更新2

如果运行rails s -b 127.0.0.1 -p 3000 （按预期工作，到目前为止），然后运行ctrl+z （启动奇怪的行为），则会遇到相同的问题。

Answer 1

您是否将数据库路径指定为“ -d”选项？ 而且我认为ctrl + z不会终止进程，并且可以在后台运行。 尝试指定数据库适配器名称（mysql，oracle等），然后重试