Yesterday's maintenance resulted in about of 5 seconds of latency on Tweets,
and about 10% of social events were delayed by about 10 minutes. No data was
lost.

We're going to perform another maintenance on social events now. You may
experience duplicate social events for several seconds up to about two
minutes.

-John Kalucki
http://twitter.com/jkalucki
Twitter, Inc.



On Wed, Feb 9, 2011 at 1:15 PM, John Kalucki <j...@twitter.com> wrote:

> We are performing a maintenance activity shortly that will increase the
> likelihood of duplicate tweets and other messages on all Streaming APIs:
> User Streams, Site Streams, and stream.twitter.com. There may also be a
> brief pause in delivery. No tweets or other messages will be lost during
> this maintenance event.
>
> The maintenance window is predicted to be approximately 2 minutes long and
> may occur between 1:15pm PST / 21:15 UTC and 3:30pm PST / 23:15 UTC.
>
> Note that this possibility of duplications has always been documented on
> the Streaming API at:
> http://dev.twitter.com/pages/streaming_api_concepts#quality-of-service.
>
> -John Kalucki
> Twitter, Inc.
> http://twitter.com/jkalucki
>
>
>

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