James Peach created TS-4758:
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Summary: back up the state machine after parent proxy failures
Key: TS-4758
URL: https://issues.apache.org/jira/browse/TS-4758
Project: Traffic Server
Issue Type: Improvement
Components: Parent Proxy
Reporter: James Peach
I don't have a good idea how to handle this, but it would be helpful if plugins
could get a second chance of a parent proxy fails. The situation now is that
you have to call {{TSHttpTxnParentProxySet}} and cross your fingers. It would
be a lot better if the state machine backed up to a hook when the parent proxy
failed. OS-DNS would be a convenient hook, but it will be hard to restart
sanely from there since there is a log if state around the DNS result. Maybe a
new hook would make sense since that could also be used with
{{TSHttpTxnServerAddrSet}}.
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