We are seeing an increased number lately on all of our apps. At times,
our applications become almost unusable.
Regarding your point on instance startup: I feel that when the rug
gets pulled out (e.g., DeadlineExceededError) on instance start-up,
sometimes that particular instance is not reclaimed and remains in
service. Because it is not properly initialized, it is broken for all
requests. In a Django application, this seems to manifest as a
NoReverseMatch exception.
<class 'django.core.urlresolvers.NoReverseMatch'>: Reverse for
'settings.index' with arguments '()' and keyword arguments '{}' not
found.
This last paragraph is supposition; I'd like to know if others see
this behaviour?
j
On Oct 29, 8:56 am, Tim Hoffman <[email protected]> wrote:
> Hi
>
> I have been monitoring DeadlineExceededError's pretty closely for a
> while and the and for a few weeks there
> I would see may be one such error every couple of days, now I am
> seeing more than 20 in the last day or so.
>
> I see higher latencies in the system status for a lot of things, but
> nothing being mentioned in terms of outages.
>
> Is anyone seeing an recent increase in the rate. (I am using Python)
>
> On a side note, it would be good if we could have some way of
> triggering a restart of a warm instance,
> what I have found is I am almost always only getting deadline exceeded
> on a instance startup, but
> because I am lazily loading a lot of modules when and if they are
> actually being used, if a lazy import fails
> due to a DeadLine exceeded error, I am getting a situation where that
> particular code path now fails
> until such time as the instance recycles due to incomplete module
> import (which has some registrations elsewhere in the system that are
> performed during the import)
>
> T
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