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new 3ca8bfb Update backpressure explanation in Heron architecture doc
(#3145)
3ca8bfb is described below
commit 3ca8bfbecca9d8c5f976f582b32eb10a9b11abb4
Author: Ning Wang <[email protected]>
AuthorDate: Mon Jan 7 10:48:07 2019 -0800
Update backpressure explanation in Heron architecture doc (#3145)
---
website/content/docs/concepts/architecture.md | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/website/content/docs/concepts/architecture.md
b/website/content/docs/concepts/architecture.md
index 29ec426..c09f46e 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.
