Question on Client Transaction Posts to Server

Question on why we are seeing multiple posts of the same transaction .

[grumpygann]

This question may not belong here, if not tell me where to take it.

In reviewing our server logs I am seeing cases where it appears that a browser is posting the same transaction to the server 5 or more times in the same second. This doesn't happen all of the time. It appears to be browser platform independent, happens with MAC's and Wintel clients. We have been looking at what might be some performance problems when we came on this and started wondering if the overhead of dealing with this kind of behavior might be part of the problem. I can understand that the browser might timeout waiting for a response. But it doesn't make sense to hit the server with a bunch of posts of the same transaction at the same time.

Am I missing something as to what is in the logs with regard to posts? I realize that the logs are the server's view of what is going on and the server to some degree could distort that view.

Any input would be greatly welcomed...

[MattyMoose]

I've encountered something similar throughout the years, but I've never heard a peep from our customers about anything weird regarding this. Rather than 5 or so times, it would seem that they were posting hundreds, if not thousands of times in a few seconds. We were never able to get to the bottom of it, and it still happens to this day.

Not really a solution, but maybe not something you need to worry about?

[grumpygann]

One of the things that we are seeing that may be a result of these multiple posts are duplicate DB insert errors being flagged by Cold Fusion. It may be that we should ignore them but it gives one pause as to why this is happening.

[ronburk]

thousands of times in a few seconds

That is most likely a botched redirect from the server, IME. Haven't tried other browsers, but I know IE will quite happily sit there executing an infinite loop of HTTP requests until the user gets bored and kills it or enters another address.