S3: akka.stream.StreamTcpException Tcp Command failed

[callicles]

Hi!

I am trying to use the s3 connector but I get an exception while trying to use it.

Here is my exception:

akka.stream.StreamTcpException: Tcp command [Connect(<s3bucket>:443,None,List(),Some(10 seconds),true)] failed

Here is my code to instantiate the Sink

scala: 2.11.8
alpakka version: 0.5
akka-http version: 10.0.3
akka-stream version: 2.4.16

Thank you,

[2m]

Tcp command [Connect(<host> ...] failed indicates that a connection to <host> could not be established. Have you specified the correct URL for the s3 to connect to?

[callicles]

I did not specify the host, I specified the bucket (datalogue) and the region (us-east-1)
The resulting host looks like a properly specified one:

datalogue.s3-us-east-1.amazonaws.com:443

I tried from different locations with a working connection

[callicles]

Ok, so after some investigation, it looks like the schema used to build the url is not valid for us-east-1.

The endpoints for that region are:

• s3.amazonaws.com
• s3-external-1.amazonaws.com
• s3.dualstack.us-east-1.amazonaws.com

and not: s3-us-east-1.amazonaws.com

A solution would be to have the region be Option[String] so that if it is not used, the endpoint requested will just be <bucket>.s3.amazonaws.com

or another solution might be to remove the region part when the us-east-1 region is selected

[2m]

Could be related to #171

[callicles]

it is, looks like the same issue.
I made a local fix that works, should I push it in a PR?

[JPrakashM]

If you are using proxy then it will help you.

val httpsProxyTransport : ClientTransport = ClientTransport.httpsProxy(InetSocketAddress.createUnresolved("proxy.services", 90))
val connSetts: ClientConnectionSettings = ClientConnectionSettings(system).withTransport(httpsProxyTransport).withIdleTimeout(Duration(180, "second"))

val httpClient: Flow[HttpRequest, HttpResponse, Future[Http.OutgoingConnection]] = Http().outgoingConnection(host,port,None,connSetts)

[Elderry]

The problem described in this issue also applies for Chinese endpoints, and it is not fixed. For region cn-north-1 and cn-northwest-1. The correct endpoint is s3.<region>.amazonaws.com.cn, according to the
AWS reference, instead of s3-<region>.amazonaws.com generated by alpakka.

[2m]

@Elderry can you create a separate ticket for this issue?

[Elderry]

@2m Done.