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<https://stackoverflow.com/questions/44795589/what-happens-to-requests-in-instance-request-pending-queue-when-a-backend-instan#>

I have B* instances running on App Engine(Python env) to serve user facing 
requests. Sometimes I see B* instances getting terminated due to *Exceeded 
soft private memory limit*

I understand that increasing the instance class will solve the issue but I 
have few queries regarding requests that are present in the Instance 
Pending Queue !

Assume we have 2 instances of B* instance class and we call it let say => 
I-1, I-2

   1. 
   
   What will happen to those requests that are there in I-1 Instance 
   Request Pending Queue after the I-1 instance gets terminated due to some 
   reason? Will those requests gets evicted from the instance queue as this 
   instance got terminated ?
   2. 
   
   Will the requests in Instance Pending Queue are Dequeued from the 
   Instance Pending Queue for I-1 and will be put in I-2 Request Queue by the 
   Request scheduler as soon as Request Scheduler finds that I-1 is shutting 
   down due to some reason.
   
Any help regarding understanding these things will be highly appreciated !

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  • [google-appengine... Ankur Choraywal

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