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fix: limit concurrent HTTP requests #12

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merged 1 commit into from
Jul 24, 2019

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@lidel lidel commented Jul 24, 2019

All HTTP requests made by this module are sent to the same delegate
host. Browsers throttle the number of concurrent requests per hostname.
Right now the limit is 6 per host, which suffocates connection pool to the delegate
blocking it from being used for preload in js-ipfs or delegated content routing.

This PR:

Context: libp2p/js-libp2p-delegated-content-routing#12

All HTTP requests made by this module are sent to the same delegate
host. Browsers throttle the number of concurrent requests per hostname,
right now it is 6 per host, which suffocates the use of delegate and
blocking it from being used for preload or delegated content routing.

This introduces a task queue that limits the number of concurrent
requests, making it safe to run in browser context.

See also:
libp2p/js-libp2p-delegated-content-routing#12

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>
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LGTM

@jacobheun jacobheun merged commit e844d30 into libp2p:master Jul 24, 2019
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0.3.1 is out!

@lidel lidel deleted the fix/http-throttling branch July 24, 2019 15:16
lidel added a commit to lidel/js-libp2p-delegated-peer-routing that referenced this pull request Jul 26, 2019
This is a backport of the fix from
libp2p#12
that works with 0.2.x

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>
jacobheun pushed a commit that referenced this pull request Jul 29, 2019
This is a backport of the fix from
#12
that works with 0.2.x

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>
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2 participants