As elegant as some of these ideas are, it might be possible, depending on the number and nature of the transactions, to batch them up every n seconds and use rcp to copy them to an "in" box on the remote machine.
-Rick > On Mar 5, 2014, at 4:19 PM, "Horacio Pellegrino" <pellegrin...@gmail.com> > wrote: > > Why don't you have one port listening for requests, and as soon as they > come in, you create a new phantom to answer that request ( liberating the > listener immediately for the next request ), then when the phantom finishes > it could log off. > > Might be you want to keep a "pool" of phantoms alive for a while, on the > assumption they might be reused. That way you are sill using one license > per request, but you have the benefit of "pooling"... You can always set > min-max limit for those phantom-workers. > > Horacio Pellegrino > > > > > On Tue, Mar 4, 2014 at 11:30 PM, Peter Cheney > <peter.che...@firstmac.com.au>wrote: > >> Thanks David. As they say "Bigger than Ben-Hur"! >> >> That's a great idea. The server I have is listening on a predetermined >> port. I trolled through /etc/services and a netstat on the remote host to >> select something that looked unused. >> >> So then if it the main phantom spawns 1-n children (presumably more >> phantoms?), it would also need to select 1-n ports which I suppose must >> also be predetermined? Or is there a call to the OS that can return an >> unused port? We're on AIX but the remote host is HPUX. >> >> Cheers >> Peter >> >> >> >> Peter Cheney >> Ultracs Developer >> t 07 3017 8837 | f 07 3002 8400 >> e peter.che...@firstmac.com.au >> w firstmac.com.au >> >> >> -----Original Message----- >> From: u2-users-boun...@listserver.u2ug.org [mailto: >> u2-users-boun...@listserver.u2ug.org] On Behalf Of David A. Green >> Sent: Wednesday, 5 March 2014 13:01 >> To: 'U2 Users List' >> Subject: Re: [U2] Multi-threaded phantom processing >> >> Peter, first of all let me congratulate you on this achievement. Having >> just finished a similar feat using UniData I understand the complexities >> that went into it. >> >> The system I'm current working with will be relatively low traffic. But I >> was pondering on the method of having a server socket that would just spawn >> a transfer server socket and send the socket address to the calling client. >> Then the client disconnects from the main server and just uses the >> transfer server to complete the task. >> >> Having 10 open phantoms with sockets will use up 10 licenses. >> >> David A. Green >> (480) 201-7953 >> DAG Consulting >> >> >> -----Original Message----- >> From: u2-users-boun...@listserver.u2ug.org [mailto: >> u2-users-boun...@listserver.u2ug.org] On Behalf Of Peter Cheney >> Sent: Tuesday, March 04, 2014 6:18 PM >> To: U2 Users List (u2-users@listserver.u2ug.org) >> Subject: [U2] Multi-threaded phantom processing >> >> Hi Everyone, >> >> A project that I'm currently working on requires transmission of >> transactional and ancillary data from one UV site to site to another. >> I have the communications all set up and it is working very well via the >> UV socket functions with a client at one end and a server at the other. >> Both the client and the server both run as a UV phantom processes written >> in UV basic and the data being transferred (also encrypted) is more or less >> real time with various UV file triggers on the client end creating queue >> items for transmission based on the data content / transaction type. >> >> This set up is a single threaded affair and I am wondering how it will >> cope and what options I'll have as the volume of data increases. >> >> Multi-threading my server process to dish out some of the load might be >> one possibility and I've seen examples in the past where the last digit of >> a numeric key (i.e. 0-9) is used to determine which one of 10 phantoms to >> call thus providing an effective distribution of the work. >> >> But even then, reading/writing processing data to a file for each child >> process seems to me to be the only way to achieve parent <-> child phantom >> communications at either end. Is there another way perhaps? It may be that >> I will need 2 sets of phantoms, 1 for the transactions and one for the >> ancillary data. Although we run UV on AIX the only other requirement is >> that I must be able to do it within UV Basic. >> >> Does anyone out there on the list know of a better way or any >> alternatives/advice so I can get a better appreciation of what else might >> be possible please? >> >> Many thanks in advance, >> Peter >> >> >> Peter Cheney >> Ultracs Developer >> t 07 3017 8837 | f 07 3002 8400 >> e peter.che...@firstmac.com.au >> w firstmac.com.au >> >> >> >> ------------------------------------------------------------------------------- >> Note: >> This email (inc all attachments) is for the use of the intended >> recipient(s) only. >> Privileged or confidential information may be contained in this >> communication. 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