[appengine-java] Does a new front end instance class allow for a larger Java XMX Heap Size?

[Scott Murphy]

If I choose a larger instance class, will it give me a larger Heap?  I 
tried this with a back end and found that I could not use the extra memory 
because the heap still stayed pretty small and my app would throw 
OutOfMemory exceptions when I got to around 256MB

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[appengine-java] Major *MAJOR* Problems with Always On

[Scott Murphy]

I can no longer successfully deploy an application.  It starts up 3 
instances, 2/3 start fine.  But the one in the middle starts real slow and 
recycles every minute.  This started occurring less than a week ago and I 
don't know what to do.

Is there any paid support for App Engine.  This is not a problem with my 
application, because old versions that used to work fine do not.  This 
problem *ONLY* occurs on the middle instance every time I start a new 
version.

As you can see below, the middle one keeps resetting.  

*Instances *[image: 
help]http://code.google.com/appengine/docs/adminconsole/instances.html
QPS*Latency*RequestsErrorsAgeMemoryAvailability0.050700.7 ms900:09:27123.0 
MBytes[image: Resident Icon]Resident0.1170.0 ms500:00:4743.5 MBytes[image: 
Resident Icon]Resident0.08398.0 ms1530:09:27124.8 MBytes[image: Resident 
Icon]Resident

When I first start the application, instances 1 and 3 quickly go to 110 
MBytes of memory within 15 seconds and settle.  Instance 2 (middle instance) 
SLOWLY grows in memory and never makes it past 72 MBytes before it dies.


Is there any SLA for App Engine??? I created a support ticket and have 
gotten no response.

http://code.google.com/p/googleappengine/issues/detail?id=5253

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