Just to be clear, the Mac Mini is a client that is the Active4D web server?

Have you turned on Active4D debug logging and looked for anything suspicious in 
the log?

When you say that many A4D_HTTPD_RequestHandler processes were on the server, 
you mean the Mac Mini or the Windows server?

Did you update the A4D_NTKConfig list?

All the best,

  - Aparajita

> On Apr 19, 2017, at 11:30 AM, Perkins, Bradley D <[email protected]> wrote:
> 
> I noticed something else:
> 
> On the production server the A4D_HouseKeeper process was of type "4D Client 
> Database Process" yet on development it was type "4D Client Process".
> When I relaunched the production server there is no A4D_HouseKeeper at all.
> 
> Brad
> 
> From: Brad Perkins <[email protected]<mailto:[email protected]>>
> Date: Wednesday, April 19, 2017 at 12:16 PM
> To: "[email protected]<mailto:[email protected]>" 
> <[email protected]<mailto:[email protected]>>
> Subject: Active4D Slowdown then Stall (weird A4D_HTTPD_RequestHandler_* 
> behavior)
> 
> We upgraded a long running A4D-based system late last week and are noticing 
> that Active4D will eventually become unresponsive. We can't serve for more 
> than a day and web apps have been unresponsive the last two mornings. The old 
> system would run for a long time without fail.
> 
> We went from
> 4D 14.2 to 4D15.4
> Active4D running on OS 10.11.latest to OS 10.12.4 (Sierra)
> Active4D is behind Apache. The Mac is a "client". Server runs on Windows.
> Replaced a 6+ year old Xserve with a Mac Mini (16 GB RAM)
> Upgraded to latest Active4D and latest NTK w/ necessary changes to Shell Code.
> 
> Admittedly a lot of changes, but this update was mandated by institutional 
> cybersecurity group (Sierra was required). Sierra would not install on the 
> Xserves. 15.4 is the only version close to certified for Sierra.
> 
> When this occurs I find:
> (a) Apache can still serve static content fine.
> (b) 4D is still running and responsive to user input.
> (c) I can see many A4D_HTTPD_RequestHandler_* processes on the server. Many 
> are of type "4D Client Database Process" with num "0" and State "Running". 
> That doesn't seem right to me.
> I'm currently observing both our production and development servers now and 
> neither show any "4D Client Database Process" processes. I can force the 
> creation of new processes by using ApacheBench to make many concurrent calls. 
> All of the new process are client processes.
> 
> Can anyone suggest how those  "4D Client Database Process" are being created?
> 
> Thanks,
> 
> Brad Perkins
> 
> 
> 
> 
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