I'm using jmeter to generate the requests and there are no exceptions in 
the jmeter log.  I'm just getting a 503 response from the server with the 
content shown below.  

<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>503 Connection not allowed: reached maximum number of 
connections</title>
</head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Connection not allowed: reached maximum number of 
connections</h1>
</body></html>

Thanks

On Thursday, April 26, 2012 1:03:08 AM UTC-7, Dmitry Gusev wrote:
>
> Hi, 
>
> could this be a client side error? Can you show the stack trace?
>
> On Tuesday, April 24, 2012 1:53:18 AM UTC+4, Carl S wrote:
>>
>> Hello, I'm attempting to do some stress testing on my GAE application 
>> to see how it's performance holds up with a large number of 
>> simultaneous users.  I tried having a 100 threads each send an https 
>> requests within 1 second, but half of them failed with the following 
>> message: 
>> "Error: Connection not allowed: reached maximum number of 
>> connections." 
>>
>> This is a paid app, so I tried upgrading the instance class and 
>> setting up some idle instances, but it doesn't seem to make any 
>> difference. 
>>
>> Is there a limit on the number of simultaneous connections?  Or is 
>> this because all the requests are generated from the same host? 
>>
>> Thanks
>
>

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