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From Guillaume Perrot <>
Subject Re: Understanding the metrics
Date Tue, 07 Jan 2014 10:27:00 GMT

 > The second way is to remove reliability on a message by message basis.
You can turn off tracking for an individual spout tuple by omitting a
message id in  the SpoutOutputCollector.emit method.

According to me, it's pretty clear that tuples are not tracked at all if
message identifier is omitted, thus not counted in stats.

2014/1/7 Tor Bonde <>

> Awesome, thanks! Can't believe I didn't see that.
> Would this in any way be possible to do, if I didn't supply the messageId?
> 2014/1/7 Guillaume Perrot <>
>> Hi,
>> You have to emit tuples from your spout with a message identifier.
>> Otherwise the acking/failing mechanism is not enabled.

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