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Closed 9 years ago.
I moved my app over to the European region and I have the feeling I'm having more H12 timeout errors than I used to have when in the US.
Am I the only one experiencing this?
You are not alone. We are experiencing the same thing from time to time. The major problem is that when a dyno starts to time out, it does not recover. The only solution I have found so far is to restart the app. Scaling does not help either, since the stuck dynos will continue to get requests.
We have reported this to Heroku, but it does not seem like Heroku has acknowledged that they have this problem in the EU region. Twice today we have had to restart the app due to H12, and it is quite annoying.
Previously Heroku support suggested we use the "rack timeout" gem, so that the app it self times out the request before Heroku does it. It does not seem to fix the problem, so my assumption is that the problem is related to Herokus own infrastructure.
(I work at Heroku)
No, You're not alone. We've had a few reports of this and are actively investigating the issue. If you're having problems, please raise a support ticket and we will see what we can do to help you out.
Related
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Closed 10 years ago.
Simply trying to publish a web service through Visual Studio 2012 like I always do, and everything locks up. You see a quick flash of a publish dialog, then it disappears - nothing can be done but to kill the process. My Azure publish works fine, but other projects like MVC do the same locking behavior. I can't alt-tab to anything, I have found no other solution then to kill it. Any ideas? Attached is the error I get if I try to restart.
P.S. I have tried restarting and no add-ins are installed.
Actually turned out to be the first signs of a hardware failure... Apple... never again.
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Closed 10 years ago.
I am trying to sync devices using a new app I'm developing. The sync is using iCloud. I can sync data to an iPod 4, and an iPad 3. When using an iPhone 4S, I see the activity indicator spinning, but get these repeating console messages:
9/29/12 10:21:02.650 AM iTunes[271]: _NotificationSocketReadCallbackGCD (thread 0x7fff79ae8180): Unexpected connection closure...
9/29/12 10:21:02.650 AM Xcode[3204]: Result for ‘/SourceCache/DTDeviceKit/DTDeviceKit-1883/DTDeviceKitBase/DTDeviceKitBase_Utilities.m’ at 783 : 0xE8000084
9/29/12 10:21:02.650 AM Xcode[3204]: _NotificationSocketReadCallbackGCD (thread 0x1152c5000): Unexpected connection closure...
This device does not sync.
Does anyone know what they mean? How to fix the problem? Many thanks
I do not know what caused the problem, but I resolved it by using the iTunes Restore function.
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Closed 11 years ago.
I have a website which prepared with ASP.NET MVC 3 and Entity Framework 4.1. This image below is my server's perfmon logs.
My problem is w3wp.exe is getting bigger and bigger at every minutes and never release. I'm using LINQ to Entities in my queries and all my entity framework codes are in using block.
I think it's a garbage collection problem, but I am not sure. What is my problem and how can I fix it?
It all depends on what your web site is doing. We have .NET servers running on 32 GB RAM, and the worker process gladly takes all it wants. It needs it really.
Are you running a lot of background threads, stored an abhorrent amount of data in the session/global application / static methods?
Are connection strings, readers, file I/O, etc. being closed properly?
.NET garbage collection works great, but you have to do your part. Garbage collectors (waste disposal engineers) are not going to go into your house and collect it for you, you have to at least walk it to the curb... or close / null / dispose of objects you're not using.
Update 1:
What is happening is the ASP.NET worker process is creating a buffer. When it hits a certain amount of memory used, it will decrease over time, but it likes to allocate memory so it doesn't have to go out of it's way to fetch it when it needs it.
You should run a profiler to see what process and threads are getting out of hand. Visual Studio 2010 has some nice profiling tools, and I'm sure there are some other third-party ones as well.
It very well could be poor coding from the developer, and garbage collection might not be doing its role as Ryan mentioned above. Especially if your application uses multiple threads.
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Closed 10 years ago.
I'm looking for free tools to design the UI for my web app.
I'm pretty new to this field, so please point me to acceptable solutions.
Basically, I need to fill a "screen" with some controls, that's it.
Thanks.
EDIT: Well, as soon as nobody answers, maybe somebody can help me with this problem for some framework other than Cappuccino?
If you have a Mac, you can use Apple's UI design tool Interface Builder and then convert the result to Cappuccino using the nib2cib utility. But if you're pretty new, this might not be the solution you need since it does require decent understanding of the code. Still, it is free.
gomockingbird is a GREAT wireframing tool.
Also check out Powerpoint or Keynote, as they are great for this too!
Go here The Dev Show they did a whole episode on wireframing and tools. If you don't want to listen to the podcast look at the show notes as lots of pointer.
You can now use Google Docs for free to do this and there are a lot of templates for this for UI etc.
Balsamiq is a great wireframe tool.
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Closed 11 years ago.
Hey Y'all - I'm using the ~/Library/PDF Services directory to inject an item into the PDF Workflow sub-menu (Print dialog box) in OS-X/Leopard.
I got an indication that the PDF Services directory is gone in Snow Leopard. Does anyone know the correct way to hook into the Print dialog's PDF Workflow going forward?
Thanks!
[Note: I got some time on an S-Leo system the other day. find made it pretty clear that the user ~/Library/PDF Services is not to be found someplace else. The system /Library/PDF Services is still in place. I changed my app to just make the directory if it is missing, and the S-Leo print dialog box finds it just fine. So the soln is to just make the directory if it is not already there.]