Hi all, In the past few years there has been an increasing trend towards Virgin Cable internet in the UK. We have Virgin at our offices now and were using it for our primary connection with a fail over back to our existing ADSL connection. Increasingly we were seeing a significant number of drop outs connecting to 4D databases held at various data centres. As a result the Virgin connection spends more time disconnected than connected and I am waiting for the end of the contract period to ditch it entirely.
As well as 4D Client Server we have developed a few strategic applications (written in 4D standalone) which run on tablet and laptops for field agents. The first of these was implemented using SOAP and would have the occasional glitch when syncing but overall was stable and fairly fast. The second was implemented on HTTP REST calls using 4D's HTTP Request function. This appeared both fast and stable until we tested it on the Virgin connection and started seeing reports from field use. Parts of the syncing were taking significantly longer (4 to 5 times the duration) than our previous tests and drop-outs were a big problem. We tried many things to solve this but nothing worked other than switching to our ADSL where everything ran well. Frustrated and trying hard to find a solution I decided to try using Pluggers NTK which we have a cross platform license for but have never used for very much. There were examples which we were able to modify for our usage and we were quickly able to replace the HTTP AUTHENTICATE AND HTTP Request methods. This was like a magic bullet not only did our REST calls perform consistently well on both ADSL and Virgin cable there was a marginal improvement in speed on both. We are moving away from SOAP anyway so having a reliable fast REST option makes me very happy. So this got me to thinking about the whole network part in 4D and the issues we have been having with 4D Client v15, 16 and 17 with dropouts on some networks. It seems to me that if the HTTP Request and WEB SERVICE CALL methods are being so affected by networks like Virgin then it is also likely that the 4D client connections would be affected in the same way. Can any body answer the following: Are there some magic tuning tips that people can share? Why is it that NTK can be some much more consistent on different networks? Why are 4D not making the network resilience and speed their top priority and talking to people who have clearly made better solutions? Regards, Dougie ________________________________________________________ telekinetix Limited- J. Douglas Cryer Phone : 01234 761759 Mobile : 07973 675 218 2nd Floor Broadway House, 4-6 The Broadway, Bedford MK40 2TE Email : jdcr...@telekinetix.com Web : http://www.telekinetix.com <http://www.telekinetix.com/> ________________________________________________________ ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
