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https://issues.apache.org/jira/browse/STORM-886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14714448#comment-14714448
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Zhuo Liu edited comment on STORM-886 at 8/26/15 4:41 PM:
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Our ABP scheme implements a light-weight yet efficient back pressure scheme. It
monitors certain queues in executors and exploits the callback schemes on
ZooKeeper and disruptor queue for a fast-responding (in a push manner) flow
control.
Please check the attached figures for more details about the implementation.
https://issues.apache.org/jira/secure/attachment/12752518/an%20simple%20example%20for%20backpressure.png
https://issues.apache.org/jira/secure/attachment/12752521/backpressure.png
was (Author: zhuoliu):
Our ABP scheme implements a light-weight yet efficient back pressure scheme. It
monitors certain queues in executors and exploits the callback schemes on
ZooKeeper and disruptor queue for a fast-responding (in a push manner) flow
control.
Please check the attached figures for more details about the implementation.
https://issues.apache.org/jira/secure/attachment/12752518/an%20simple%20example%20for%20backpressure.png
https://issues.apache.org/jira/secure/attachment/12752516/backpressure.png
> Automatic Back Pressure
> -----------------------
>
> Key: STORM-886
> URL: https://issues.apache.org/jira/browse/STORM-886
> Project: Apache Storm
> Issue Type: Improvement
> Reporter: Robert Joseph Evans
> Assignee: Zhuo Liu
> Attachments: an simple example for backpressure.png, backpressure.png
>
>
> Heron proposed a form of back pressure that does not rely on acking or max
> spout pending. Instead spouts throttle not only when max.spout.pending is
> hit, but also if any bolt has gone over a high water mark in their input
> queue, and has not yet gone below a low water mark again. There is a lot of
> room for potential improvement here around control theory and having spouts
> only respond to downstream bolts backing up, but a simple bang-bang
> controller like this is a great start.
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