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https://issues.apache.org/jira/browse/PROTON-1998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16758484#comment-16758484
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ASF GitHub Bot commented on PROTON-1998:
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rgodfrey commented on issue #30: PROTON-1998: Add SASL protocol trace
URL: https://github.com/apache/qpid-proton-j/pull/30#issuecomment-459784499
Personally I see it as a (longstanding) bug that it doesn't do the same
thing as proton-c and surprising/(very very) annoying that SASL is omitted
rather than it being surprising if it suddenly appears.
Given that protocol tracing should only be on in development/debugging
situations I really don't see it as a problem (though I'd also be fine if the
challenge/response parts are masked off by default... normally the things you
want to see are the sasl mechanisms offered/selected and where (if) the
exchange has hung).
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> [Proton-J] Add SASL protocol trace
> ----------------------------------
>
> Key: PROTON-1998
> URL: https://issues.apache.org/jira/browse/PROTON-1998
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-j
> Reporter: Keith Wall
> Priority: Minor
>
> Unlike Proton, Proton-J does not provide SASL frame trace if environment
> variable PN_TRACE_FRM is set. It would be useful if Proton-J had this
> ability too to help diagnose SASL negotiation problem.
> Proton's SASL frame trace looks like this:
> {code:java}
> [0x7fc112c03a00]: -> SASL
> [0x7fc112c03a00]: <- SASL
> [0x7fc112c03a00]:0 <- @sasl-mechanisms(64)
> [sasl-server-mechanisms=@PN_SYMBOL[:ANONYMOUS]]
> [0x7fc112c03a00]:0 -> @sasl-init(65) [mechanism=:ANONYMOUS,
> initial-response=b"guest@Oslo.local"]
> [0x7fc112c03a00]:0 <- @sasl-outcome(68) [code=0]
> [0x7fc112c03a00]: -> AMQP
> [0x7fc112c03a00]:0 -> @open(16)
> [container-id="be777c26-af6e-4935-a6be-316cc8bbdb35", hostname="127.0.0.1",
> channel-max=32767]{code}
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