AWS ALB gRPC configuration issues

[orakhada]

When I configure AWS ALB gRPC to LB configure the collector, I get an error like below.
The error itself seems to be caused by the collector trying to use HTTP1.0.

Can you tell me how to best configure ALB on AWS?

01-24 14:20:14.014 [nfoSender-Timer] WARN  c.n.p.p.AgentInfoSender                  -- Failed to send agentInfo={agentId='dev-collector-test', agentName='', applicationName='dev-collector-test', isContainer=false, startTime=1737696011293, pid=1317205, machineName='ip-xxx-xxx-xxx-xxx.ap-northeast-2.compute.internal', hostIp='xxx.xxx.xxx.xxx', serverType=SPRING_BOOT, jvmVersion='17.0.12', agentVersion='3.0.1'}
io.grpc.StatusRuntimeException: INTERNAL: http2 exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.64.1.jar:1.64.1]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:481) ~[grpc-stub-1.64.1.jar:1.64.1]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:564) ~[grpc-core-1.64.1.jar:1.64.1]
	at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:72) ~[grpc-core-1.64.1.jar:1.64.1]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:729) ~[grpc-core-1.64.1.jar:1.64.1]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:710) ~[grpc-core-1.64.1.jar:1.64.1]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.64.1.jar:1.64.1]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133) ~[grpc-core-1.64.1.jar:1.64.1]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
	at java.lang.Thread.run(Thread.java:840) ~[?:?]
Caused by: io.netty.handler.codec.http2.Http2Exception: First received frame was not SETTINGS. Hex dump for first 5 bytes: 485454502f
	at io.netty.handler.codec.http2.Http2Exception.connectionError(Http2Exception.java:107) ~[netty-codec-http2-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.verifyFirstFrameIsSettings(Http2ConnectionHandler.java:351) ~[netty-codec-http2-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.decode(Http2ConnectionHandler.java:245) ~[netty-codec-http2-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.handler.codec.http2.Http2ConnectionHandler.decode(Http2ConnectionHandler.java:451) ~[netty-codec-http2-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:530) ~[netty-codec-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:469) ~[netty-codec-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) ~[netty-codec-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1407) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918) ~[netty-transport-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:799) ~[netty-transport-classes-epoll-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:501) ~[netty-transport-classes-epoll-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:399) ~[netty-transport-classes-epoll-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:994) ~[netty-common-4.1.111.Final.jar:4.1.111.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.111.Final.jar:4.1.111.Final]

[emeroad]

gRpc in Pinpoint uses HTTP2 plain text.
Take a look at the above protocol for AWS ALB.

[orakhada]

gRpc in Pinpoint uses HTTP2 plain text. Take a look at the above protocol for AWS ALB.

@emeroad
For gRPC and HTTP2, we know that their behaviour is based on https.
For AWS, if the target group selects HTTP2 or gRPC protocol, ALB can only specify HTTPS in the lister rule.

[smilu97]

I haven't done it on AWS, but I think you can use an L4 load balancer, which is the Network LoadBalancer in AWS

And I would recommend just using the Application LB with TLS because it's free anyway.