docs: Add LIMITATIONS.md

argoproj-labs · Aug 4, 2021 · 9a09f4d · 9a09f4d
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diff --git a/README.md b/README.md
@@ -72,6 +72,7 @@ Advanced
 
 * [Configuration](docs/CONFIGURATION.md)
 * [Features](docs/FEATURES.md)
+* [Limitations](docs/LIMITATIONS.md)
 * [Metrics](docs/METRICS.md)
 * [Image contract](docs/IMAGE_CONTRACT.md)
 * [Reading material](docs/READING.md)

diff --git a/docs/LIMITATIONS.md b/docs/LIMITATIONS.md
@@ -0,0 +1,14 @@
+# Limitations
+
+## Message Size
+
+Messages are handled in memory by Argo Dataflow, so are limited by the amount of memory available x the number of messages cached in memory. 
+
+* HTTP messages must be < 4GB.
+* Kafka messages are typically < 1MB. 
+* NATS streaming messages are < 1MB.
+
+## Message Throughput
+
+* HTTP source tested to 2,000 TPS
+* Sinking is limited by the rate of the sink.