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https://issues.apache.org/jira/browse/PROTON-1996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16756256#comment-16756256
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Robbie Gemmell commented on PROTON-1996:
----------------------------------------

Vertx is an independent project that happens to use the proton-j protocol 
engine, so you should enquire or report about it seperately there.

> Proton Client is "stalled" during SASL handshake
> ------------------------------------------------
>
>                 Key: PROTON-1996
>                 URL: https://issues.apache.org/jira/browse/PROTON-1996
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-j
>    Affects Versions: proton-j-0.25.0, proton-j-0.31.0
>            Reporter: Daniel Maier
>            Priority: Major
>
> Hi,
> When I try to connect with proton vertx client to an AMQP server, the client 
> seems to come sporadically in some kind of "stalled" state. The logs, see 
> below, look like the server just not responds anymore which cause the client 
> to be stalled. There are no more logs regarding SASL handshake.
> Used server is qdrouter.
> Would it make sense from your point of view to introduce a timeout here? Or 
> is the responsibility for this in the calling application? 
> {code}
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=8 lim=512 cap=512]
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=8 lim=512 cap=512]
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=8 lim=512 cap=512]
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=0 lim=512 cap=512]
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=0 lim=512 cap=512]
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=0 lim=512 cap=512]
> 08:32:49.412 [vert.x-eventloop-thread-0] DEBUG 
> io.netty.handler.ssl.SslHandler - [id: 0x429f2c43, L:/100.100.0.6:45982 - 
> R:xxx.com/xxx:443] HANDSHAKEN: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
> 08:32:49.418 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - SaslImpl [_outcome=PN_SASL_NONE, 
> state=PN_SASL_IDLE, done=false, role=CLIENT] about to call input.
> 08:32:49.418 [vert.x-eventloop-thread-0] TRACE 
> io.vertx.proton.impl.ProtonTransport - New Proton Event: CONNECTION_INIT
> 08:32:49.418 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=0 lim=512 cap=512]
> 08:32:49.418 [vert.x-eventloop-thread-0] DEBUG 
> o.a.qpid.proton.engine.impl.SaslImpl - Finished writing SASL output. Output 
> Buffer : java.nio.HeapByteBuffer[pos=0 lim=512 cap=512]
> {code}
> Thanks
> Daniel



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