I have a chained task that runs exactly every 5 minutes and it runs 80 times in the middle of the day (a cold instance can take anywhere from 1 second to 5 seconds [it grabs data from a remote service so the varied wait comes from that service delaying, puts it to the datastore and adds the next task to run in 5 minutes].
Here are yesterdays stats: - 6 Times out of 80 it go a hot instance, ran in about 600 ms and took less than half the usual CPU ms. - 4 of the runs got a 500 error with the message (and forced the task to re-run): "Request was aborted after waiting too long to attempt to service your request. " - The rest had the usual "This request caused a new process to be started..." So there is good and bad (for me a hot instance is perfectly good).. the 10 second request was aborted problem is recent (i'd have to go through my logs to see when exactly this started).. but this is the only process running for this application.. so there are not a bunch of different requests to the application that are using up any available instances.. it just doesn't seem to be cold starting a new process quick enough. Thus.. if the amount of time instances stay hot has been increased, it seems it might be sucking up a few too many resources and appengine is having trouble spinning up new instances at times. (This is presuming that the two issues are more than simply correlated.) On Wed, Sep 1, 2010 at 9:54 AM, Tim Hoffman <[email protected]> wrote: > It may even be longer, I have logs showing the same instance serving > after 6min's inactivity. > > T > > On Sep 1, 9:47 pm, Tim Hoffman <[email protected]> wrote: > > Hi > > > > I am seeing app recycling times out at between 4 and 6 minutes. (ie 1 > > request every 4 minutes gets the same instance, every 6 minutes gets a > > new instance). > > > > Can someone from google confirm. > > > > T > > -- > 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]<google-appengine%[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.
