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Posted to dev@qpid.apache.org by "Charles E. Rolke (Jira)" <ji...@apache.org> on 2021/05/05 19:06:00 UTC
[jira] [Updated] (DISPATCH-2087) TCP adaptor listener connections
hang if no connectors are defined
[ https://issues.apache.org/jira/browse/DISPATCH-2087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Charles E. Rolke updated DISPATCH-2087:
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Fix Version/s: 1.17.0
> TCP adaptor listener connections hang if no connectors are defined
> ------------------------------------------------------------------
>
> Key: DISPATCH-2087
> URL: https://issues.apache.org/jira/browse/DISPATCH-2087
> Project: Qpid Dispatch
> Issue Type: Bug
> Reporter: Charles E. Rolke
> Priority: Major
> Fix For: 1.17.0
>
>
> The proposed 1.16.0 freeze version of the TCP adaptor may have two start up problems:
> * a connector is defined but the server is absent
> * no connector is defined
> If a connector is defined but the server is absent:
> * A client connects to the listener. Listener starts with SYN, SYN/ACK, ACK.
> * The client sends the first payload bytes; listener ACKs
> * The server connection fails with SYN, RST/ACK, ACK.
> * The client connection is closed with FIN, FIN/ACK, ACK
> If a connector is not defined:
> * A client connects to the listener. Listener starts with SYN, SYN/ACK, ACK.
> * The client sends the first payload bytes
> * No further traffic is passed on the client connection
> * Even if the server is started while the client is waiting no further traffic is passed on the to the client.
> Leaving the client connected forever with no hope of ever passing data is a bug. Two approaches that would improve service for the client:
> * If there is no connector then close the client connection immediately
> * If the client connection is left open then when a tcpConnector is defined attach that connector's server to the in-progress listener connection.
>
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