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Parallel consumption of one stream

See original GitHub issue

How can I have multiple consumers receiving data from one object stream in parallel? parallel only works on streams of streams.

Issue Analytics

  • State:closed
  • Created 10 years ago
  • Comments:26 (3 by maintainers)

github_iconTop GitHub Comments

svozzacommented, Sep 5, 2016

The answer is above there, use map to convert your stream into a stream of streams and then use mergeWithLimit.

_(['', '', ''])
    .map(makeHtttpRequest) // makeHtttpRequest must return a Highland stream
caolancommented, Mar 9, 2014

This definitely sounds like something we should add. Also cc @theefer - I think this is what we talked about recently.

Essentially, we want a pool of consumers, each reading from the source as soon as one is ready instead of blocking until all are ready. The results are then pushed out on a single output stream (like merge()). Perhaps it could be called balance(workers), where workers is an Array or Stream of writable worker streams? Other name suggestions most welcome!

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