Error 500

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Francois Masurel

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May 5, 2011, 10:46:49 AM5/5/11
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Getting quite a few 500 errors today.

Am I the only one ?

Francois

Francois Masurel

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May 5, 2011, 10:52:25 AM5/5/11
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In fact, quite a few warmup requests fail with timeouts.

I didn't change anything and everything was going fine before.

Did something change on GAE side today ?

Francois

Eduardo Perrino

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May 5, 2011, 10:53:04 AM5/5/11
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I've been getting a lot of 500 errors too.

Eduardo

2011/5/5 Francois Masurel <f.ma...@gmail.com>
Getting quite a few 500 errors today.

Am I the only one ?

Francois

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Tim

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May 5, 2011, 10:59:09 AM5/5/11
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GAE was updated to v1.5.0 about 48 hours ago - I had problems with a change to the (python) webapp framework, other people are seeing task queues mis-behaving slightly. You can download the pre-release of v1.5.0 dev server (doesn't contain all the changes that were deployed to production) and review the change notes etc.

Rachel Gollub

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May 5, 2011, 1:18:53 PM5/5/11
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This just started for me about an hour ago. I don't think it could
have been caused by the update....

Same thing -- a lot of 500 errors.

-- Rachel

Sanjay Jeyakumar

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May 5, 2011, 1:56:20 PM5/5/11
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I noticed the same thing starting 10 minutes back.  The requests didn't seem to be hitting my server because they weren't showing up in the list of all logged requests.  Then all of a sudden, I refreshed the page a few times in succession, and it seemed to be back.  

Can we please have someone from the App Engine team look into this and provide some sort of a reason on what occurred, and whether an application's configuration could have prevented this.  The system status dashboard (as always) marked everything as green and humming.  

Francois Masurel

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May 5, 2011, 4:00:12 PM5/5/11
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What is really strange is that "Always On" intances are restarted very frequently which probably causes the 500 errors I get.

In case of traffic increase, isn't GAE supposed to start new instances instead ?

You can check the attachment that shows that my "Always On" instances have just been restarted without any recent deployment going on.

Thanx for your help.

Francois

gae-always-on.jpg

Mars

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May 5, 2011, 4:20:32 PM5/5/11
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Yeah I got quite a few of those in the past few hours. Something's
playing up on the hosting side...
>  gae-always-on.jpg
> 45KViewDownload

Francois Masurel

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May 5, 2011, 4:59:52 PM5/5/11
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In fact, under stress, GAE kills my "Always On" instances and restarts them after a few seconds (I wasn't quick enough to make a screenshot).

That's probably the reason why I get all these 500 errors. 

What is annoying is that I'm paying for this :-)

Michael Quartly

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May 5, 2011, 11:33:21 PM5/5/11
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I have found the same thing occurred to my app. I have found that turning off "Always On" helps with the instance restarts. So when this happens I turn off "Always On" for a couple of days while I wait for the engineers to fix whatever they broke.
I have had this happen a few times on my app this month, but have not been able to get a response from Google whenever I submit a support ticket.

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Moritz

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May 5, 2011, 2:36:19 PM5/5/11
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Me too I get lots of 500 errors right now. Additionally, about 11
hours ago, I got a lot of /_ah/warmup requests, for about 2 hours on
average about 0.2 per second. That's all strange behaviour.

Moritz.
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Francois Masurel

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May 6, 2011, 5:15:20 PM5/6/11
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Got a screenshot a showing a missing "Always On" instance with no deployment going on (cf. attachment).
Instances - VinoCities - Google Chrome.jpg

Francois Masurel

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May 10, 2011, 6:21:49 AM5/10/11
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Everything seems to be back to normal :-)

We'll keep an eye on it.
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