[Mongrel] Mongrel_cluster

Jonathan Rochkind rochkind at jhu.edu
Fri Dec 12 17:05:12 EST 2008


I don't have mongrels hanging, but I _do_ have mongrels that cease to 
exist without leaving anything in the logs at all. Very odd.

Jonathan

Weil, Mark Thomas wrote:
> Hello,
>
> I am having to restart my mongrel_cluster instances every morning because they are hung.
> Has anyone else had this problem.
>
> I am running Red-Hat 5.0 and Mongrel_cluster (1.0.5) and Apache (2.2.3).
>
> I have a strace of the mongrel_cluster when it is hung.
>
> --- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
> rt_sigreturn(0)                         = 1784
> accept(3, {sa_family=AF_INET, sin_port=htons(35255), sin_addr=inet_addr("127.0.0.1")}, [16]) = 788
> fcntl(788, F_GETFL)                     = 0x2 (flags O_RDWR)
> fstat(788, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b1082bd8000
> lseek(788, 0, SEEK_CUR)                 = -1 ESPIPE (Illegal seek)
> fcntl(788, F_GETFL)                     = 0x2 (flags O_RDWR)
> fstat(788, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b1082bd9000
> lseek(788, 0, SEEK_CUR)                 = -1 ESPIPE (Illegal seek)
> setsockopt(788, SOL_TCP, TCP_CORK, [1], 4) = 0
> select(789, [788], [6], [], {0, 0})     = 1 (in [788], left {0, 0})
> select(8, [3], [6], [], {0, 0})         = 0 (Timeout)
> read(788, "GET / HTTP/1.1\r\nHost: 127.0.0.1:"..., 16384) = 600 getpeername(788, {sa_family=AF_INET, sin_port=htons(35255), sin_addr=inet_addr("127.0.0.1")}, [9377430658336423952]) = 0 stat("/opt/web/cee/cee/public", {st_mode=S_IFDIR|0755, st_size=4096,
> ...}) = 0
> stat("/opt/web/cee/cee/public", {st_mode=S_IFDIR|0755, st_size=4096,
> ...}) = 0
> stat("/opt/web/cee/cee/public/index.html", 0x7fff34252b70) = -1 ENOENT (No such file or directory) stat("/opt/web/cee/cee/public/.html", 0x7fff34252820) = -1 ENOENT (No such file or directory)
> select(8, [3], [6], [], {0, 5860})      = 0 (Timeout)
>
>
>
> --
> Thank You,
> -----------------
> Mark T. Weil
>
>
>   
> ------------------------------------------------------------------------
>
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-- 
Jonathan Rochkind
Digital Services Software Engineer
The Sheridan Libraries
Johns Hopkins University
410.516.8886 
rochkind (at) jhu.edu


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