[torqueusers] Question about the difference between a node where pbs_server is run and a compute node

Garrick Staples garrick at usc.edu
Wed Apr 28 11:23:04 MDT 2010


On Wed, Apr 28, 2010 at 07:15:42PM +0200, Bas van der Vlies alleged:
> 
> On 28 apr 2010, at 19:01, Bas van der Vlies wrote:
> 
> I am not at work but here is a strace of qstat thangs for a few seconds in the poll call.
> {{{
> socket(PF_FILE, SOCK_STREAM, 0)         = 3
> connect(3, {sa_family=AF_FILE, path="/tmp/.torque-unix"...}, 19) = 0
> getuid32()                              = 31000
> getgid32()                              = 31010
> getpid()                                = 22919
> sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"m"..., 1}], msg_controllen=24, {cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=22919, uid=31000, gid=31010}}, msg_flags=0}, 0) = 1
> mmap2(NULL, 266240, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40275000
> mmap2(NULL, 266240, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x402b6000
> write(3, "+2+12+21+3bas+0+0+0"..., 19)  = 19
> poll([{fd=3, events=POLLIN|POLLHUP}], 1, 10800000
> }}}
> 
> Regards

qstat sent a request and is waiting for the response. Perfectly normal.

What is the server doing?

-- 
Garrick Staples, GNU/Linux HPCC SysAdmin
University of Southern California

Life is Good!
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