The Atom entry used to provide a corrected notice of lockdown
for Orcmid's Lair exposes a problem with the encoding parameter of the XML
preamble being in conflict with the hosted-site Content Type that is specified
in serving up the Atom feed.
Unstable Demonstration
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2004-07-24-16:20 -0700 At this time, this situation
applies to
It does not apply to:
The snapshots are copies of the feeds at the time we published
clean notices of them, and they currently exhibit the incoherence in all but one
case. The first buttons check the current actual feed and the results may
differ.
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The following replacement was intended to establish a grounded
notice for Orcmid's Lair and provide a reproducible demonstration of the
encoding incoherence. However, the copy
of the feed that I associated with this report validates 
!
So I have to refer to the original feed, even though it might be valid or not
depending on when last updated. So I must refer to the direct feed and
the way it serves up as invalid.
[updated
2004-07-24-14:25 - 0700 corrected for acceptability
to the on-line
Atom validator. The permanent <id>-element
for this notice is now a reachable
web location. Incident details are developed in Incident
Report X040702: Blogger FTP Corruption. Status of these blogs
is summarized at X040701:
Web Log Status. The invalidity of the Atom Feed is yet
another problem. The poor rendering of the Invalid Atom button is
a different problem
still.]
IMPORTANT NOTICE
: 2004-07-15-20:23Z - On Friday, July 2, while posting a new article
on Professor
von Clueless in the Blunder Dome, Blogger transferred unintelligible binary to the default (current) page,
an archive page, the posting page and the Atom feed. That blog is now
rolled-back to the last backed-up content before that event. There will be no further posting to my
non-experimental Blogger-intermediated Blogs until the situation is resolved.
THESE BLOGS ARE CURRENTLY LOCKED DOWN:
Orcmid's Lair,
Numbering Peano,
and Professor von Clueless in the Blunder Dome.
Blogger is denied FTP access to those blogs and comment postings will fail.
The only active blog is the experimental
Spanner Wingnut Muddleware Laboratory.
Live forensic and trouble-shooting analysis is performed there. That
makes it a dangerous place. I do not recommend subscribing to that atom feed
because it can be corrupted during incident trouble-shooting. -- Dennis E.
Hamilton
The conflict is a rather complicated one having to do with how
Blogger decides what encoding is being used and how that is communicated to
the host site, which serves up the Atom feed to requesting browsers and news
feed aggregators.
During a lockdown of Orcmid's Lair for troubleshooting, a manual
feed entry was inserted based on the validated one for
Spanner Wingnut. In using this entry, the only difference, beside the
modification date, is
-
The Valid Atom button is changed to refer to the Orcmid's
Lair atom feed, lair-atom.xml.
-
The <id>-entry was not modified because the impact of
the preceding change was not appreciated.
-
The feed is not valid, although that has nothing to do with
this entry.
[updated
2004-07-23-18:14 corrected for acceptabillity to the on-line
Atom validator. The permanent <id>-element
for this notice is now a reachable
web location. Incident details are developed in Incident
Report X040702: Blogger FTP Corruption. Status of these blogs
is summarized at X040701:
Web Log Status.]
IMPORTANT NOTICE
: 2004-07-15-20:23Z - On Friday, July 2, while posting a new article
on Professor
von Clueless in the Blunder Dome, Blogger transferred unintelligible binary to the default (current) page,
an archive page, the posting page and the Atom feed. That blog is now
rolled-back to the last backed-up content before that event. There will be no further posting to my
non-experimental Blogger-intermediated Blogs until the situation is resolved.
THESE BLOGS ARE CURRENTLY LOCKED DOWN:
Orcmid's Lair,
Numbering Peano,
and Professor von Clueless in the Blunder Dome.
Blogger is denied FTP access to those blogs and comment postings will fail.
The only active blog is the experimental
Spanner Wingnut Muddleware Laboratory.
Live forensic and trouble-shooting analysis is performed there. That
makes it a dangerous place. I do not recommend subscribing to that atom feed
because it can be corrupted during incident trouble-shooting. -- Dennis E.
Hamilton
The feed was edited using jEdit with the XML plug-in. The rules for the
feed were analyzed and developed in accordance with Labnote B040701:
Atom Feed Synthesis.
- 0.10 2004-07-25-12:00 Provide Snapshots for
Comparison Validations
- Expand the table of where the inconsistency shows up so that the
validations can be redone at any time to confirm the results that we
experienced.
- 0.01 2004-07-24-12:57 Make adjusted version of
notice
- Create a new notice that is properly grounded (because it is
different that the wing-atom.xml one) and handles the feed invalidity.
The problems of the invalidAtom image degradation is captured as a separate
incident.
- 0.00 2004-07-23-22:35 Identify material that
demonstrates the incoherence
- Capture the essential details of lock-down notice that revealed the
problem..
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You are navigating Orcmid's Lair
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created 2004-07-23-22:35 -0700 (pdt) by orcmid
$$Author: Orcmid $
$$Date: 05-02-11 16:48 $
$$Revision: 11 $
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