[google-appengine] Re: Taskqueue execution latency up by 1000x

[Saurabh Gupta]

Latency went down for a bit but has risen again:
http://code.google.com/status/appengine/detail/taskqueue/2012/11/13#ae-trust-detail-taskqueue-execution-latency

I've moved stuff over to execute on a backend: hope that can hold up until 
TQ latency becomes reasonable again.

Is this latency related to the nexus launch? Isn't the TQ designed to 
mitigate exactly this situation?

{SG}


On Sunday, November 11, 2012 5:43:06 AM UTC-5, Dan wrote:
>
> Hi Goggle,
>
> Is it possible to have an update as to what's going on with the taskqueue 
> execution latency. According to the status monitor it has been going on 
> since midnight on 10th November and is still continuing.
>
> There are no notes to say you are looking into it so I just wanted to make 
> sure you are aware of it.
>
> The pattern I am seeing is that multiple tasks are delayed for over a 
> minute and then execute all at once. My app is used to an execution latency 
> in the order of < 10ms but I am seeing delays of over 60,000ms.
>
> Best wishes,
> Dan
>

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Re: [google-appengine] Re: Taskqueue execution latency up by 1000x

[Saurabh Gupta]

Thanks, Julie! That reference is really helpful!


On Tuesday, November 13, 2012 6:49:28 PM UTC-5, Julie wrote:
>
> FYI, it is issue #4901 at
> http://code.google.com/p/googleappengine/issues/detail?id=4901
>
>
> On 14 November 2012 06:24, vlad >wrote:
>
>> I ditched TaskQueue for all requests with timeouts of less than 60 sec. 
>> It was simply too unreliable. Btw, there is a ticket filed for feature 
>> requesting a TaskQueue with timing guarantees. Feel free to star it. Sorry, 
>> too lazy to dig out a link.
>>
>>
>>
>> On Tuesday, November 13, 2012 8:57:47 AM UTC-8, Dan wrote:
>>>
>>> Thanks for the info.
>>>
>>> Looks like I spoke too soon as well, taskqueue execution latency is back 
>>> up again - awesome. If only the latency increase was in the order of 10x 
>>> not a massive 100x - 1000x...
>>>
>>> On Tuesday, November 13, 2012 1:40:58 PM UTC, stevep wrote:

 This issue has been raised before (I believe this is what you are 
 seeing). Many moons ago vlad was its champion in these groups. His 
 conclusion (link below): "I have been screaming about this for a looong 
 time. The offcial position of GAE team is - we don't guarantee on time 
 execution. Even though this issue is not about on time execution but 
 rather 
 about bugs/inefficiency of their scheduler." 

 Sadly I think this is never going away, so best to build your client 
 with the anticipation of such delays -- TQ tasks as part of handling 
 client 
 calls are too powerful/necessary to avoid entirely. HTH -stevep

 Link:
 https://groups.google.com/**forum/?fromgroups=#!topic/**
 google-appengine/nwnq7cjABhY



 On Sunday, November 11, 2012 2:43:06 AM UTC-8, Dan wrote:
>
> Hi Goggle,
>
> Is it possible to have an update as to what's going on with the 
> taskqueue execution latency. According to the status monitor it has been 
> going on since midnight on 10th November and is still continuing.
>
> There are no notes to say you are looking into it so I just wanted to 
> make sure you are aware of it.
>
> The pattern I am seeing is that multiple tasks are delayed for over a 
> minute and then execute all at once. My app is used to an execution 
> latency 
> in the order of < 10ms but I am seeing delays of over 60,000ms.
>
> Best wishes,
> Dan
>
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[google-appengine] GAE Java Upload failures

[Saurabh Gupta]

Hi all,

Anyone else seeing failures in uploading to the Java runtime (2012-11-30 
13:40)? The system status dashboard shows a spike in latency for the Java 
runtime. I've been unable to deploy my app for the past hour and its 
incredibly frustrating: queues had failed a few weeks ago, and now the Java 
runtime is having issues as a whole.

How is this consistent with the GAE SLA for paid apps?

- Saurabh

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Re: [google-appengine] GAE Java Upload failures

[Saurabh Gupta]

With all due respect, Seriously? Are you kidding?

-Saurabh


On Friday, November 30, 2012 4:21:09 PM UTC-5, Shilendra Sharma wrote:
>
> Hello Saurabh
>
> It can be helpful to you 
>
> https://developers.google.com/appengine/docs/java/gettingstarted/installing
>
> Thanks,
> Shilendra 
>
>
>
>
>
> On Sat, Dec 1, 2012 at 12:14 AM, Saurabh Gupta 
> 
> > wrote:
>
>> Hi all,
>>
>> Anyone else seeing failures in uploading to the Java runtime (2012-11-30 
>> 13:40)? The system status dashboard shows a spike in latency for the Java 
>> runtime. I've been unable to deploy my app for the past hour and its 
>> incredibly frustrating: queues had failed a few weeks ago, and now the Java 
>> runtime is having issues as a whole.
>>
>> How is this consistent with the GAE SLA for paid apps?
>>
>> - Saurabh
>>
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>>
>
>

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[google-appengine] Java deployments failing

[Saurabh Gupta]

unable to deploy app to appengine for past 1 hr or so:
com.google.appengine.tools.admin.HttpIoException: Error posting to URL: 
https://appengine.google.com/api/appversion/getresourcelimits?app_id=X&version=x&;
503 Service Unavailable

Try Again (503)
An unexpected failure has occurred. Please try again.

Unable to update app: Error posting to URL: 
https://appengine.google.com/api/appversion/getresourcelimits?app_id=x&version=x&;
503 Service Unavailable

Try Again (503)
An unexpected failure has occurred. Please try again.

Also, unable to reach the dashboard, dataviewer, instances, etc. on the app 
engine admin page

Also, unable to reach https://appengine.google.com/

Help!

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[google-appengine] Re: Our application is very slow and appengine.google.com is unreachable

[Saurabh Gupta]

Likewise
The app is continuing to serve, but the dashboard and all other things are 
unreachable.

System dashboard says there are no problems

Google, please update us with a status!
Thanks


On Tuesday, January 15, 2013 10:41:40 AM UTC-5, Nicanor Babula wrote:
>
> Dear Google Appengine team,
>
> As of 16:30 GMT +1 our application started encountering high latencies out 
> of nowhere and requests started throwing unexplicable 500 errors. Also, 
> appengine.google.com is not reachable (500 http error). Please let us 
> know something ASAP so we can give explanations to our customers.
>
> appid: domodentweb2
> datastore: HRD
> sdk: 174-java
>
> Best regards,
> Cristian Nicanor Babula
> www.domodent.it/en/
>

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[google-appengine] Re: Our application is very slow and appengine.google.com is unreachable

[Saurabh Gupta]

Also, unable to deploy apps via appcfg:

com.google.appengine.tools.admin.HttpIoException: Error posting to URL: 
https://appengine.google.com/api/appversion/getresourcelimits?app_id=X&version=x&;
503 Service Unavailable

Try Again (503)
An unexpected failure has occurred. Please try again.

Unable to update app: Error posting to URL: 
https://appengine.google.com/api/appversion/getresourcelimits?app_id=x&version=x&;
503 Service Unavailable

Try Again (503)
An unexpected failure has occurred. Please try again.



On Tuesday, January 15, 2013 11:02:16 AM UTC-5, Saurabh Gupta wrote:
>
> Likewise
> The app is continuing to serve, but the dashboard and all other things are 
> unreachable.
>
> System dashboard says there are no problems
>
> Google, please update us with a status!
> Thanks
>
>
> On Tuesday, January 15, 2013 10:41:40 AM UTC-5, Nicanor Babula wrote:
>>
>> Dear Google Appengine team,
>>
>> As of 16:30 GMT +1 our application started encountering high latencies 
>> out of nowhere and requests started throwing unexplicable 500 errors. Also, 
>> appengine.google.com is not reachable (500 http error). Please let us 
>> know something ASAP so we can give explanations to our customers.
>>
>> appid: domodentweb2
>> datastore: HRD
>> sdk: 174-java
>>
>> Best regards,
>> Cristian Nicanor Babula
>> www.domodent.it/en/
>>
>>

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[google-appengine] insane number of warmup requests exhaust entire daily quota

[Saurabh Gupta]

Hello Google,

My app was hit with 4.43k warmup requests in a 6 hr period that totally 
exhausted my daily budget: there was no other significant activity going on 
at that time.

Can you please help explain what was going on and how I can prevent this in 
the future?

Thanks,
Saurabh

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Re: [google-appengine] Re: insane number of warmup requests exhaust entire daily quota

[Saurabh Gupta]

Hey guys

My startup takes ~3 seconds

this in the web.xml change that fixed it:
  

  Google Warmup
  /_ah/warmup


  admin

  

If the warmup endpoint is not protected by the admin privilege then folks 
can start hitting it.
Google's documentation doesn't say that this has to be done (implying that 
access to /_ah/warmup is implicitly protected)

Thanks,
Saurabh



On Wednesday, January 23, 2013 9:41:44 AM UTC-5, Jeff Schnitzer wrote:
>
> Look at your logs.  Are your instances are dying on startup?  Perhaps 
> your warmup handler is exceeding the 60s deadline, or blowing the heap 
> limit?  That could cause lots of cycling, especially if you have lots 
> of resident instances. 
>
> Do you have any instances successfully serving user requests?  Did 
> they go through /_ah/warmup or were they started by user facing 
> requests? 
>
> Just for kicks, check that the /_ah/warmup requests are actually being 
> called from Google and not by some third party.  I doubt this is an 
> issue but it's worth making sure. 
>
> Jeff 
>
> On Wed, Jan 23, 2013 at 7:09 AM, Saurabh Gupta 
> > wrote: 
> > Hi Francois, 
> > 
> > Thanks for your email; what I'm talking about goes way beyond scheduler 
> > issues and routing of requests to dynamic instead of resident instances: 
> I'm 
> > talking about 50-60 instances getting started up in response to a 
> barrage of 
> > /_ah/warmup requests that drain even a highly funded app completely of 
> > quota. 
> > 
> > Is this a DOS attack? 
> > 
> > Here are some images to convey the situation: 
> > 
> > 
> > On Wednesday, January 23, 2013 4:00:59 AM UTC-5, Francois Masurel wrote: 
> >> 
> >> Hi Saurabh, 
> >> 
> >> There have been a few posts recently about the problem : 
> >> 
> >> 
> https://groups.google.com/d/topic/google-appengine/Z6EFDyv3MRk/discussion 
> >> 
> https://groups.google.com/d/topic/google-appengine/3M164n46MkM/discussion 
> >> 
> https://groups.google.com/d/topic/google-appengine/cJcOrOE4JDc/discussion 
> >> 
> >> You might find some useful information in the above threads. 
> >> 
> >> François 
> >> 
> >> PS: 
> >> 
> >> And, as Takashi from Google suggested, you can star the following 
> issues : 
> >> 
> >> https://code.google.com/p/googleappengine/issues/detail?id=7865 
> >> https://code.google.com/p/googleappengine/issues/detail?id=5858 
> >> 
> >> 
> >> On Wednesday, January 23, 2013 6:31:38 AM UTC+1, Saurabh Gupta wrote: 
> >>> 
> >>> Hello Google, 
> >>> 
> >>> My app was hit with 4.43k warmup requests in a 6 hr period that 
> totally 
> >>> exhausted my daily budget: there was no other significant activity 
> going on 
> >>> at that time. 
> >>> 
> >>> Can you please help explain what was going on and how I can prevent 
> this 
> >>> in the future? 
> >>> 
> >>> Thanks, 
> >>> Saurabh 
> > 
> > -- 
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> > https://groups.google.com/d/msg/google-appengine/-/Cv-LioR0VCAJ. 
> > 
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>
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[google-appengine] Re: Problems with deploying

[Saurabh Gupta]

Same here,
Unable to deploy a new version (java runtime): i get stuck in "will check 
in 60 seconds" loop

aborted the update, did a rollback (which succeeded) and then redeployed, 
and still stuck in the loop.

Google, Please help!
Thanks!

On Saturday, February 2, 2013 6:27:33 AM UTC-5, Jesús Espejo wrote:
>
> Hello,
>
> Is anyone experimenting issues uploading applications to GAE? I cannot do 
> it, it remains in the exponential back-off algorithm in 60 seconds 
> "forever"... Also i have problems launching backends:
>
> Error: Server ErrorThe service you requested is not available yet.
>
> Please try again in 30 seconds.
>
> My app is for Python.
>
> Thanks in advance, 
>
> Jesús.
>

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[google-appengine] Re: Problems with deploying

[Saurabh Gupta]

Google has not acknowledged this as an issue. In fact, the system dashboard 
 (http://code.google.com/status/appengine) shows that everything is 'normal'

This is really frustrating to have no feedback from Google on such an 
important issue.



On Saturday, February 2, 2013 12:42:43 PM UTC-5, Michael Hermus wrote:
>
> Same here. Has this issue not yet been acknowledged by Google? Ack.
>
> On Saturday, February 2, 2013 6:27:33 AM UTC-5, Jesús Espejo wrote:
>>
>> Hello,
>>
>> Is anyone experimenting issues uploading applications to GAE? I cannot do 
>> it, it remains in the exponential back-off algorithm in 60 seconds 
>> "forever"... Also i have problems launching backends:
>>
>> Error: Server ErrorThe service you requested is not available yet.
>>
>> Please try again in 30 seconds.
>>
>> My app is for Python.
>>
>> Thanks in advance, 
>>
>> Jesús.
>>
>

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Re: [google-appengine] Re: Problems with deploying

[Saurabh Gupta]

Do you know if premiere accounts get better uptime/service? 

I'm a paid app, but not a premiere app (not paying the $500/month) , so just 
wondering if there is a difference in the underlying uptime/ availability etc. 
in paid versus premiere. 

Thanks

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Re: [google-appengine] Re: Problems with deploying

[Saurabh Gupta]

Thanks, Jason, that is good to know!


On Saturday, February 2, 2013 2:30:39 PM UTC-5, Jason Brummett wrote:
>
> My account is premiere and has the same problem right now.  I do have the 
> option to contact the Enterprise Support center, but haven't done so yet, 
> but I can confirm that the 500 bux didn't avoid the issue.
>
> On Saturday, February 2, 2013 1:26:01 PM UTC-5, Saurabh Gupta wrote:
>>
>> Do you know if premiere accounts get better uptime/service? 
>>
>> I'm a paid app, but not a premiere app (not paying the $500/month) , so 
>> just wondering if there is a difference in the underlying uptime/ 
>> availability etc. in paid versus premiere. 
>>
>> Thanks
>>
>>

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[google-appengine] Dashboard not loading, logs not viewable

[Saurabh Gupta]

Hello, after this 
incident: 
https://groups.google.com/forum/?fromgroups=#!topic/google-appengine-downtime-notify/R39uBoTCJqI

the dashboard and logs are not viewable this morning;
the https://appengine.google.com site does not load.

Please help
Thanks,
Saurabh

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[google-appengine] App Engine Not Serving ... AGAIN!

[Saurabh Gupta]

This issue:
https://groups.google.com/forum/?fromgroups=#!topic/google-appengine-downtime-notify/R39uBoTCJqI

is back. App is deployed but not serving anything.
Please Fix!
There are $ at stake here, reputations of people and companies, etc. etc.

Thanks,
Saurabh

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[google-appengine] Re: Deployments issues

[Saurabh Gupta]

Also happening for Java apps: *all our backends are down*, we cannot update 
our front ends either
This was also happening yesterday

Google, please fix
We have a large scale mobile app and this is killing us.

Thanks for your time


On Thursday, June 6, 2013 11:04:37 AM UTC-4, martinc wrote:
>
> For the last hour, Deployment messages for a python app have hanging on 
> Checking if deployment succeeded; according to the Admin Console the 
> deployments are deployed, however instance stats and logs are completely 
> missing from the deployed versions.

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[google-appengine] How to Start a Java Application Developement using CRUD operation

[Saurabh Gupta]

Dear Readers ,

I am new to this fantastic Google application engine environment. I am able 
to run simple static site on GAE. Now i want to perform CRUD operation so 
for this i need help from all technical geeks of this group. Below  is my 
queries.
*1*- How to handle back end queries .( for example in my local machine ,i 
used hibernate libraries and all model,dao classes to perform this.)
But how to start perform back end queries here.

*2*- As of now , my focus is to just getiing good hands on simple java 
project with CRUD operation. Later on , i would like to use all my skills 
of spring,hibernate to developer application and run on GAE.

*3*- I would be great thankful to any of buddy if he/she can provide me 
sample project which he created (project with CRUD) and running on GAE. 

I am very much passionate to  use all my skills of java (hibernate,spring) 
but i need to help how to execute on GAE so a quick response will be highly 
appreciated.

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