Question

当我尝试从我的应用程序注销时（使用设计）rails应用程序挂起并且ruby吃了100％的CPU，在重新启动服务器之后它是stil frezeed（无法加载页面）。只有当我删除并重新创建我的数据库时它才会消失。我使用PostgreSQL，试图切换到MySQL，没有帮助。使用mongrel（也发生在webrick）。 Ruby 1.9.2，rails 3.0.9

strace的

futex(0xe1be68, FUTEX_WAKE_PRIVATE, 1)  = 1
futex(0xe1c3fc, FUTEX_WAIT_PRIVATE, 1, NULL) = ? ERESTARTSYS (To be restarted)
--- SIGINT (Interrupt) @ 0 (0) ---
rt_sigreturn(0x2)                       = -1 EINTR (Interrupted system call)
futex(0xe1c3fc, FUTEX_WAIT_PRIVATE, 1, NULL) = 0
futex(0xe1c458, FUTEX_WAKE_PRIVATE, 1)  = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xe1be68, FUTEX_WAIT_PRIVATE, 2, NULL) = 0

控制台输出：

Started GET "/signout" for 127.0.0.1 at 2011-11-09 10:11:13 +0200
  SQL (1.0ms)   SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
 FROM pg_attribute a LEFT JOIN pg_attrdef d
 ON a.attrelid = d.adrelid AND a.attnum = d.adnum
 WHERE a.attrelid = '"jokes"'::regclass
 AND a.attnum > 0 AND NOT a.attisdropped
 ORDER BY a.attnum
  Processing by SessionsController#destroy as HTML
Redirected to http://localhost:3000/
Completed 302 Found in 1ms

我不确定那里会发生什么？

UPD *这是冻结不仅发生在注销时，它是随机发生的:(在Mac上的其他开发人员也没有这个问题，我运行Ubuntu 11.10，在10.04上试过，仍然有它。

Answer 1

尝试在development.rb中启用cache_classes

Ruby进程吃掉100％的cpu

1 个答案: