Sorry, what's QPS? ..fredrik
Sent from my iPad On 23 sep 2010, at 18:20, "Ikai Lan (Google)" <[email protected]> wrote: > It sounds like these are impacting Python developers - I haven't heard any > Java app developers chime in yet. > > What's the ballpark of the QPS you guys are doing? <1qps, 10qps, 100qps, etc? > > -- > Ikai Lan > Developer Programs Engineer, Google App Engine > Blogger: http://googleappengine.blogspot.com > Reddit: http://www.reddit.com/r/appengine > Twitter: http://twitter.com/app_engine > > > > On Thu, Sep 23, 2010 at 12:15 PM, Eli Jones <[email protected]> wrote: > Also, a cold start for this task can take as little as 960 ms (where it shows > the log detail: "This request caused a new process to be started for your > application..."). > > And, the task is doing a URLFetch, so.. I'm sure that is taking up a chunk of > the running time. > > One of my imports is pytz (no django or anything like that though).. so that > could also be of interest. > > > On Thu, Sep 23, 2010 at 12:10 PM, Eli Jones <[email protected]> wrote: > My app is in Python. The only thing it does between 6:30 AM PST and 1:00 PM > PST is run a single chained task. The task just runs once every 5 minutes. > (There are no other backend processes or users). > > Yesterday at 11:00 AM PST and 11:02 AM PST, the task experienced the 10 > second, 500 error (with 0 CPU_MS used).. then the task successfully retried > at 11:02:55 AM PST. > > There was another one (not mentioned in your list of times for yesterday) at > 7:45 AM PST. Failed after 10 seconds with a 500 error and 0 CPU_MS used. > The task successfully retried at 7:47 AM PST (for some reason, the tasks in > my app wait 120 seconds for the first retry) > > For some reason, the log doesn't contain the message that usually goes with > this error (there is no detailed log message): > > "Request was aborted after waiting too long to attempt to service your > request. This may happen sporadically when the App Engine serving cluster is > under unexpectedly high or uneven load. If you see this message frequently, > please contact the App Engine team." > > But, it has the exact same fingerprint. (It just seems that the logs are > trimming the detailed messages faster than usual.) > > This chained task runs 79 times each day (this would be 82 requests counting > these 3 errors).. so these errors accounted for 3.66 % of the requests during > the day yesterday. > > > On Thu, Sep 23, 2010 at 11:19 AM, Ikai Lan (Google) > <[email protected]> wrote: > Hey guys, > > We've been tracking latency spikes and intermittent batches of aborted > requests over the last 24 hour period. There were at least 3 periods of > spikes yesterday: > > ~1100 Pacific (moderate, brief period of high) > ~1300 Pacific (small) > ~1530 Pacific (small) > > Community reports seem to indicate that these are related to loading > requests. If you are being affected, can you report your environment, > language and if these times correlate with your experiences in this thread? > Are there periods that this particular report did not cover? Please provide > measurements, times and application IDs. > > -- > Ikai Lan > Developer Programs Engineer, Google App Engine > Blogger: http://googleappengine.blogspot.com > Reddit: http://www.reddit.com/r/appengine > Twitter: http://twitter.com/app_engine > > -- > 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. > > -- > 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.
