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Track time spent in the FetcherBolt queues #535

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jnioche opened this issue Feb 23, 2018 · 0 comments
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Track time spent in the FetcherBolt queues #535

jnioche opened this issue Feb 23, 2018 · 0 comments
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core fetcher
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1.8

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@jnioche
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jnioche commented Feb 23, 2018 •
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Knowing how long a URL has spent in the queues is very useful and a good addition to knowing how long the actual fetching took. This could be used for instance to throttle the emissions of URLs from a particular backend, similar to #504. These also reflect the robots wait directives - as well as the actual waiting time for the queue.

This should also be provided as metrics.
@jnioche jnioche added this to the 1.8 milestone Feb 23, 2018
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