fix: test proxy doesn't return "http2 excpetion" for long errors (#2775)

PeteyPii · Patrick Wrobel · web-flow · commit dafe647ab787 · 2026-02-09T16:58:09.000-05:00
Co-authored-by: Patrick Wrobel &lt;pwrobel@google.com&gt;
diff --git a/test-proxy/src/main/java/com/google/cloud/bigtable/testproxy/CbtTestProxy.java b/test-proxy/src/main/java/com/google/cloud/bigtable/testproxy/CbtTestProxy.java
@@ -828,6 +828,9 @@ private InstantiatingGrpcChannelProvider getTransportChannel(
               public ManagedChannelBuilder apply(ManagedChannelBuilder input) {
                 NettyChannelBuilder channelBuilder = (NettyChannelBuilder) input;
 
+                // The default replaces long (several KiB) error messages with "http2 exception"
+                channelBuilder.maxInboundMetadataSize(Integer.MAX_VALUE);
+
                 if (sslContext != null) {
                   channelBuilder.sslContext(sslContext);
                 }

Original file line number	Diff line number	Diff line change
`@@ -828,6 +828,9 @@ private InstantiatingGrpcChannelProvider getTransportChannel(`
`828`	`828`	`public ManagedChannelBuilder apply(ManagedChannelBuilder input) {`
`829`	`829`	`NettyChannelBuilder channelBuilder = (NettyChannelBuilder) input;`
`830`	`830`
	`831`	`+ // The default replaces long (several KiB) error messages with "http2 exception"`
	`832`	`+ channelBuilder.maxInboundMetadataSize(Integer.MAX_VALUE);`
	`833`	`+`
`831`	`834`	`if (sslContext != null) {`
`832`	`835`	`channelBuilder.sslContext(sslContext);`
`833`	`836`	`}`