Hi Will,
I assume this is on the master-slave datastore? I think there were
a number of large latency spikes in both the datastore and serving
last week.
Some things to try:
- do work in smaller batches.
- if you're doing work serially, do it in batches.
- use async interfaces to do work in batches, but in parallel using async.
http://code.google.com/appengine/docs/python/datastore/async.html
Robert
On Fri, Jul 29, 2011 at 18:35, Will Reiher <[email protected]> wrote:
> I'm trying to debug this issue but I keep hitting a wall.
> I keep trying new things on one of my deployments to see if I an get the
> number of errors down but nothing seems to help. It all started in the last
> week or so ago. I also have some existing deployments that I have not
> changed and are seeing these same errors while the code was never changed
> and had been stable.
> 1. This is is happening on existing code that has not changed recently
> 2. The DeadlineExceededErrors are coming up randomly and at different points
> in the code.
> 3. Latency is pretty high and app engine seems to be spawning a lot of new
> instances beyond my 3 included ones.
>
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