You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@heron.apache.org by GitBox <gi...@apache.org> on 2019/01/07 18:48:09 UTC

[GitHub] nwangtw closed pull request #3145: Update backpressure explanation in Heron architecture doc

nwangtw closed pull request #3145: Update backpressure explanation in Heron architecture doc
URL: https://github.com/apache/incubator-heron/pull/3145
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/website/content/docs/concepts/architecture.md b/website/content/docs/concepts/architecture.md
index 29ec426adc..c09f46e5b5 100644
--- a/website/content/docs/concepts/architecture.md
+++ b/website/content/docs/concepts/architecture.md
@@ -148,10 +148,9 @@ SMs in containers **C** and **D**, which will lead to the socket buffers in
 those containers filling up, which could lead to throughput collapse.
 
 In a situation like this, Heron's back pressure mechanism will kick in. The **SM**
-in container **A** will send a message to all the other **SMs**. In response, the
-other **SMs** will examine the container's [physical
-plan](../topologies#physical-plan) and cut off inputs from spouts that feed
-bolt **B3** (in this case spout **S1**).
+in container **A** will send a message to all the other **SMs**, then all
+**SMs** will cut off inputs from local spouts and no new data will be accepted
+into the topology.
 
 ![Back Pressure 2](/img/backpressure2.png)
 


 

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services