You can't use 2.7 unless you migrate to HR. Once you migrate to HR, the datastore read timeouts go away.
And then you don't need to migrate to 2.7. -Joshua On Dec 2, 2011, at 10:37 AM, Rishi Arora wrote: > Earlier this morning I had a situation where datastore reads were timing out. > That's okay, and expected, given that I use a M/S datastore. However, the > timeouts were of the order of 50 seconds, causing nearly 30 front-end > instances to be spawned. My usual number of active front-end instances at > that time of the day is about 5, peaking at 15 occasionally. This condition > lasted only 3 minutes or so, and so, the cost impact was minimal. However, I > can imagine that if this lasted an hour or more, I would incur a lot of costs > while the downtime persists. I'm okay with such downtimes, as long as it > only leads to my customers not being able to access my site. But if it also > leads to unnecessary increases in costs, then it calls for further > optimization. So, my loaded question is - how can I handle this with > python2.5? Is python 2.7 the only answer? I imagine python2.7 will help > because while a front-end is waiting for data store ops to complete, it can > process other requests. But are there other ways of setting specific > timeouts to datastore operations? So, if these operations are taking too > long, I'd rather just return an error to the user, instead of letting my > front-end run indefinitely. > > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
