Feature Requests item #3488178, was opened at 2012-02-16 03:21
Message generated for change (Comment added) made by bagder
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Category: command line client
Group: download
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Andrew Zhezherun (zhezherun)
Assigned to: Daniel Stenberg (bagder)
Summary: [patch] Retry on CURLE_COULDNT_CONNECT

Initial Comment:
When using curl, I sometimes get random "couldn't connect to host errors". I am not sure what is causing them, but the server looks to be operational, and running the same command after a few seconds usually works. I tried to use the --retry option, however it turned out that it treats CURLE_COULDNT_CONNECT as a fatal error and does not try again if it occurs. Could this error code be included please when curl determines whether to retry? I have attached a patch that should address this issue.

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>Comment By: Daniel Stenberg (bagder)
Date: 2012-02-16 03:37

Message:
The point with --retry is to make it retry operations for transitional
errors. Those are errors that are likely to change over time. Most of the
transitional ones are such due to what the application layer protocol
itself says they are.

I don't think a failure to do a TCP connect is a typical transitional
error. I also don't think that adding non-transitional errors to the list
of errors to do retry for is a good idea, as if we can add such we pretty
much can ditch the check and retry for all possible errors.

For your particular problem here and now, you can quite easily write a
shell script for your case that re-sends the same command if this
particular error is returned.

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Received on 2012-02-16