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https://issues.apache.org/jira/browse/PROTON-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17519064#comment-17519064
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Ievgen Popovych edited comment on PROTON-2528 at 4/7/22 6:00 PM:
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Some information to aid debugging, I've set some prints with debugger (proton
0.37 from pypi):
*
[_io.py:68|https://github.com/apache/qpid-proton/blob/0.37.0/python/proton/_io.py#L68]
{code}f"socket connect exception error: {e.errno}"{code}
*
[_handlers.py:1361|https://github.com/apache/qpid-proton/blob/0.37.0/python/proton/_handlers.py#L1361]
{code}f"IO selectable error handling: {e}"{code}
Testing, when the network is unreachable I get:
{code}
socket connect exception error: 101
{code}
And reactor/container will exit with exception {{OSError: [Errno 101] Network
is unreachable}}
When the host is unreachable:
{code}
socket connect exception error: 115
IO selectable error handling: 113
{code}
and proton tries to reconnect.
was (Author: JIRAUSER287753):
Some information to aid debugging, I've set some print statement with debugger
(proton 0.37 from pypi):
* on {{_io.py:68}} print {{f"socket connect exception error: \{e.errno\}"}}
* on {{_handlers.py:1361}} print {{f"IO selectable error handling: \{e\}"}}
Testing, when the network is unreachable I get:
{quote}socket connect exception error: 101{quote}
And reactor/container will exit with exception {{OSError: [Errno 101] Network
is unreachable}}
When the host is unreachable:
{quote}socket connect exception error: 115
IO selectable error handling: 113{quote}
and proton tries to reconnect.
> Python client does not reconnect if initial connection fails with ENETUNREACH
> -----------------------------------------------------------------------------
>
> Key: PROTON-2528
> URL: https://issues.apache.org/jira/browse/PROTON-2528
> Project: Qpid Proton
> Issue Type: Bug
> Components: python-binding
> Reporter: Ievgen Popovych
> Priority: Major
>
> {{ENETUNREACH}} can happen when target network is unreachable for example
> when the network stack was not fully initialized yet or when a network is not
> connected temporarily, etc.
> Since this type of error can very much be transient - I'd expect proton to
> try (re)connect as usual (just like it does for {{EHOSTUNREACH}}).
> This is on recent Fedora.
> Easy ways to reproduce include disabling network connection and running
> proton trying to connect to some non-link-local address.
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