Re: Is there a way to automatic wait when there is one incoming file in process of receiving ? -- MIDRANGE-L

In this case , files not necessarily have same  name, different file names and 
some times same file name.....

Vern Hamberg <vhamberg@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:Sorry, Murali, I don't 
have any specific posts in mind. I just have a vague 
recollection of some discussion. I'd have to do the same thing you would - 
go to www.midrange.com and put in some search words, like "wait for file to 
arrive" or "how to know when a file has arrived". One of those may find you 
something. I just don't have the time to do it.

Some other sites to search on are www.ignite400.com or www.search400.com or 
www.iseriesnetwork.com (probably need to register) or www.mcpressonline.com

Are you saying that FTP is the way the files are being sent? Are the files 
always of the same name? Do you have knowledge and/or control of the 
program(s) that are sending the data to your iSeries?

Seems you need some way for your program (or progrrams) to know when a file 
has arrived. If the files all have the same name, they could use different 
members, not just the "*FIRST" member.

You COULD lock exclusively the file in JIMPORT. But this would make an FTP 
transfer fail, not wait. And you'd have no way to know how long it'll take 
to finish.

I think an FTP exit program could redirect the transfer to a different 
member. Others probably know, or you could look up exit points for FTP in 
the API section of InfoCenter, I think, or some kind of TCP/IP manual 
there. And the same exit program could put an entry on a data queue that 
your program would wait for. The entry would have the name of the new 
member. Then your program would override to that member when it receives 
the next data queue entry.

This way, all the data gets there without having to wait. Your program gets 
notification of new arrivals. And your program can process each until it 
finishes, then go to the next.

Hope you don't get flooded beyond the capacity to handle things. If you do, 
you could start another job with the same program that'd watch the same 
data queue.

Just an idea without thinking too much about consequences. And if the fiels 
are coming in over NetServer, it might not be possible. Again, it might.

HTH
Vern

At 08:17 PM 6/6/2004, you wrote:
>Thank you Vern! Sorry if I have nt written properly. I mean to say that 
>next incoming file has to wait automatically, while first incoming file 
>in process of receiving ? Would be really greatful if you can tell me the 
>previous discussion topics on this! I can go to archives and pick up the 
>mails...It is keep checking file in the library or FTP..
>Thanks,
>Murali.
>
>Vern Hamberg wrote:
>Hi Murali
>
>Need more information, please. What has to wait? At any rate, I'm not aware
>of any automatic way to know that a file is done. You could check for locks
>on it. A process that is writing to a physical file will hold a lock on
>it, perhaps exclusive, perhaps share-no update.
>
>How do you detect that the file has arrived? I would think of an exit
>program for FTP, perhaps, that could tell you it is coming. Otherwise, you
>can keep checking the library for a new file. Or something else. I think
>there've been discussions here on how to do this.
>
>There is save while active on the various save commands. Check out the help
>on that parameter, then go to the backup & recovery manual to get more
>details. You'll need to know the implications.
>
>HTH
>Vern
>
>At 01:56 AM 6/5/2004, you wrote:
>
>
> >murali dhar wrote:
> >We usually receive incoming files (from other systems) into JIMPORT
> >library in our AS400system. Is there a way to automatic wait when there is
> >one incoming file in process of receiving ?
> >Or save while active ?
> >
> >
> >Rgds,
> >Murli.


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