From: Gyoung-Yoon Noh <nohmad@...>
Date: 2006-07-05T20:38:18+09:00
Subject: Re: 'gem up' hangs..

On 7/5/06, Gyoung-Yoon Noh <nohmad@gmail.com> wrote:
> Hi,
>
> I found 'gem up' command hangs on one of the machines.
>
> $ sudo gem up
> Updating installed gems...
> # (hangs here...)
> ERROR:  While executing gem ... (Errno::ETIMEDOUT)
>     Connection timed out - connect(2)
>
>
> Strange, so I tried with strace(1):
>
> $ sudo strace gem up
> connect(3, {sa_family=AF_INET, sin_port=htons(80),
> sin_addr=inet_addr("66.92.150.242")}, 16) = -1 EINPROGRESS (Operation
> now in progress)
> select(4, NULL, [3], [3], NULL)         = 1 (out [3])  # hangs here...
> connect(3, {sa_family=AF_INET, sin_port=htons(80),
> sin_addr=inet_addr("66.92.150.242")}, 16) = -1 ETIMEDOUT (Connection
> timed out)
> fcntl64(3, F_SETFL, O_RDWR)             = 0
> close(3)                                = 0
> rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
> write(2, "ERROR:  While executing gem ... "..., 88ERROR:  While
> executing gem ... (Errno::ETIMEDOUT)
>     Connection timed out - connect(2)) = 88
> write(2, "\n", 1
> )                       = 1
> rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
> rt_sigaction(SIGINT, {SIG_DFL}, {0x80b04dc, [],
> SA_RESTORER|SA_RESTART, 0x55f8c8}, 8) = 0
> munmap(0xb7ec3000, 4096)                = 0
> exit_group(1)                           = ?
>
>
> What's this 66.92.150.242?
> It seems this host has no internet connection.
> select(2)'s hanging on seems another problem.
>
> Any thoughts?
>
> --
> http://nohmad.sub-port.net
>
>

This problem was caused by nscd(name server cache daemon).
However gem should be able to handle such network error.

-- 
http://nohmad.sub-port.net