Add a CloseDeadline function to Connection #181
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Did not set a milestone because, following strict-semver, a new public API function must be introduced in a new minor version :-/ |
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@Zerpet I renamed |
A deadline to set an I/O timeout to Connection closure is important, because RabbitMQ may block the connection (during a memory alarm), and stop reading from the connection socket. In this case, Connection.Close() will block on I/O. Whilst closing the connection is not the solution to the memory alarm, an application should have the ability to close a connection to a service, regardless of the state of the service. Signed-off-by: Aitor Perez Cedres <[email protected]>
Signed-off-by: Aitor Perez Cedres <[email protected]>
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@Zerpet let me know if my recent changes are fine. |
lukebakken
approved these changes
Mar 10, 2023
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Yeah, those changes look good 👍 I'm gladly surprised the new test works on GitHub Actions, I thought we didn't have access to |
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Summary
Fixes #178
Background information
During a memory alarm, RabbitMQ will block publisher connections. This means that RabbitMQ will stop reading from the connection socket. In this case, any further attempts from the client using this connection will be blocked on I/O. For example, a connection close request, will block in I/O, and the client application will be blocked.
Other clients, like Java or C#, use a timeout when closing a connection, and return an exception if the connection is not closed within the timeout. Those clients also do connection recovery, but that's outside of the scope of this client (See README anti-goals).
This client now also provides a
Connection.CloseDeadlinefunction to specify an I/O timeout for the connection close request to complete.