where to look?

[abez]

Well for one you can run commands remotely using SSH so you could run your
process remotely. I am unsure about the exit status but you could easily
make a script to auto login and retry til it felt the process was
finished. I recommend testing how SSH acts with exits codes and remote
processes.

Also remember to use timeouts otherwise you'll be bitten.

On Thu, 25 Jul 2002, nkuipers wrote:

> Hello all,
> 
> Here's the situation.
> 
> I work as an analyst for a genomics lab.  We have a dedicated local BLAST 
> (http://www.ncbi.nih.gov/) server.  Whether from the summer heat, or a failing 
> drive, or an OS bug, or some combination of various factors, our server is 
> crapping out too frequently.  This is really annoying because we are often 
> hammering it with really large queries that take up to days to complete.  We 
> replaced our drive, and currently we simply resort to running our big runs 
> overnight when it's cooler and traffic from other labs is light, or constantly 
> monitoring the status of the server with a ssh window running top.  But this 
> is tedious.  And what if the server dies in the middle of the day when I'm at 
> a seminar for 3 hours, and I come back to three hours wasted when a new 
> process could have been running (we are pretty quick rebooting during the 
> day;)?  What I am therefore interested in is information on finding or writing 
> a perl script that does the following:
> 
> -monitors the BLAST run once fired up in the ssh terminal
> -if process has bad exit status, reconnect as soon as possible and
> -repeat the call to the original process, with same parameters
> 
> I looked at interprocess communication chapter in the Camel 3rd ed, but most 
> of what I saw there seemed to deal with sending/handling termination signals 
> in case of an error, rather than dealing with a total server shut-down...is 
> IO::Socket::INET what I want?
> 
> Thanks in advance,
> 
> nathanael
> 
> 

-- 
ABeZ------------ ------- ------ - ---------- -- ------------
http://www.indexdirect.com/abez/ Abram Hindle (abez at abez.ca)
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