My site doesn't have too much traffic, but now and then I see this warning:

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.


Just half an hour ago, I saw one DeadlineExceededError and one
TransactionFailedError, immediately followed by 5 warnings mentioned above,
within roughly 30 seconds, when my application was trying to insert some
text data into datastore, in one plain put().

The load I saw for that particular url was about 13 requests per minute.
Well, this kind of load shouldn't cause datastore to choke in a way as I've
seen, in my expectation.

This problem results in data loss in my app and then bad
customer-experiences.

Should I expect this is the current capability of datastore/GAE? Or are
there any guidelines for minimizing this problem?

My app id is 'qyingweb'.

Thanks,

Will

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