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Missing topic threads?

Bug Collectors

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Dec 24, 2018, 1:06pm Top


I'm hoping someone might have some advise here. I'm an administrator for the Monthly Author Reads group and a member pointed out that several of our topic threads have gone missing. There are still URLs that exist for them, but the pages never load to anything. (We had a similar issue with another thread before, but I ended up just re-creating that one.) Does anyone know what's going on? Is there a way to revive these?


For reference, here are the URLs that go nowhere:

Dec 24, 2018, 5:07pm Top

It's a bit strange, considering those topics were created one after another. I got curious, and http://www.librarything.com/topic/267158 also has no end point. Pity you picked today to report it, since I suspect that anyone who might normally pay attention is off tangled up with last minute xmas stuff.

Dec 24, 2018, 5:52pm Top

Fiddler shows that the request is returning an OK response (200) but there is nothing in it.

Dec 24, 2018, 6:52pm Top

It just continues to get more interesting.

The topic thread that ends in 110 has a home, but very soon after, things begin to break.


I note that there seems to have been at least one spam run in the group that comes after, but I didn't make a huge effort to pursue it. (Spam run assumed by the number of sequential topics that were deleted.)

I really hope, when staff finally gets around to this, that there's a post mortem on what happened, and other details. It makes me long for root access...and you're all lucky that I don't have it. :-} I'm not as cautious or careful as I used to be.

Dec 26, 2018, 2:04pm Top

>2 Lyndatrue: It is unusual. Hopefully folks will still check in after the holiday rush. Had we noticed it earlier, would have reported earlier.

Edited: Dec 26, 2018, 3:04pm Top

This is likely going to take more time (and more developers) than I currently have at the moment, but on initial investigating, here's what I see:

The four topics cited in >1 sweetiegherkin: and >2 Lyndatrue: are all missing from our forum_topics table in the DB. That's the first place I check for Talk topics (threads).

>1 sweetiegherkin: Do you have any idea what the titles of those topics, or subjects discussed were? That might help me if they've somehow become dissociated from those topic IDs. How did you find these URLs in the first place? Were they linked to somewhere?

My best guess at the moment is an error in server synchronization/replication. Will likely require sysadmin intervention.

Dec 27, 2018, 3:33pm Top

>6 lorannen: Yes, they were part of the Monthly Author Reads group: https://www.librarything.com/groups/monthlyauthorreads

They are linked to here on the group's wiki:

It is the discussion threads for these three authors:
Gail Tsukiyama August
Jhumpa Lahiri September
Wilkie Collins October

There may be other non-working threads as well but I didn't check.

Dec 28, 2018, 9:38am Top

I have this issue with new threads I created in the last couple days. I set up the American Authors Challenge for 2019 in the 75 Book Challenge Group. Links that worked when I posted them initially (I checked each of them at the time) failed later the same day, and don't work now.
The titles of the new threads I set up in that group are:

American Authors Challenge 2019 General Discussion Thread http://www.librarything.com/topic/300980 This link "works", but gives a skeletal view of the thread messages.

Chaim Potok--American Author Challenge January 2019 http://www.librarything.com/topic/300981
Same issue.

Links IN those threads to each other, and to the planning thread for the challenge http://www.librarything.com/topic/”http://www.librarything.com/topic/297103 seem to take one to a blank New Topic. Touchstones within those threads do work.

Photos I uploaded to my member gallery or junk drawer and posted in those threads are not appearing in the threads this morning either. They do show up when I go to my photo gallery.

Edited: Dec 28, 2018, 9:57am Top

Dec 28, 2018, 10:05am Top

>8 laytonwoman3rd: If I add "https" to the URL of those threads, and then click the links in the thread, they work fine.

Make sure that the links to photos you are using have "https" in the URL as well, that might fix the problem.

Dec 31, 2018, 9:28am Top

>9 MarthaJeanne:, 10 Glad we could fix >8 laytonwoman3rd:'s issue, but unfortunately the https trick isn't working for these other ones. :/

Edited: Dec 31, 2018, 9:48am Top

>11 sweetiegherkin: No, your problem started earlier and was different. This just got added to the wrong bug. However it was important to get that sorted out.

I did point out that yours was a different problem and didn't have that easy a fix.

Dec 31, 2018, 12:05pm Top

Here are the OP's original topic threads, which still don't work even with https:


It's not that they're not loading (which was the result of the http problem) but they load and say "Problem This topic does not exist."

Jan 3, 5:30pm Top

>12 MarthaJeanne: Yes, you did note that :) I was just re-confirming

>13 r.orrison: Curiouser and curiouser.

Jan 4, 2:56pm Top

So, good news/bad news. The good news is, we figured out why these threads are turning up like that. The bad news is the why: they were posted during the data gap we discovered back in April, detailed here: https://www.librarything.com/topic/289941.

I'm not sure if they're recoverable at this point, but I've raised the issue with our developers.

Jan 4, 3:05pm Top

Further update: it looks like we can recover most of the threads that are currently missing. They'd be without titles (we could put in placeholder titles, "Untitled 1, 2" or "Recovered 1, 2", something like that), and missing a couple of messages at the very start of the threads—at least the initial message. Is that something this group would want, do you think?

Jan 4, 10:41pm Top

>15 lorannen:, >16 lorannen: Oh great. I'm glad there's a reason behind it. Yes, I think semi-recovered would be better than nothing! Thanks so much! :)

Feb 1, 8:15pm Top

I’m also missing a thread. I started a new topic, not realising this already addressed the issue, so am reposting here so it’s together with the others.

I am trying to find my second thread in the '75 Books Challenge for 2017' and some messages I posted there. However, there is no continuation link showing from the first thread which ends in August 2017. The thread book that drneutron maintains for the 75 group each year also shows that I had a second thread but if I follow the link from there, it says that the topic does not exist.

Is it possible to find my lost thread? I know the group has been dormant for a while.

Ah; found a link that I pasted in my 2018 thread: https://www.librarything.com/topic/267168

but it still says Problem: topic does not exist

Feb 4, 10:47am Top

>16 lorannen: Any update on recovery status? I know you mentioned it might take a while. Thanks in advance for your help.

Mar 25, 12:57am Top

Any luck yet?

Group: Bug Collectors

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Bug (edit)

ID: 300835

Category: Talk pages

Assigned to all

Reported by sweetiegherkin

Status: Reported

Dec 24, 2018, 1:06pm

150 days since last change

By sweetiegherkin

Status log

Reported. sweetiegherkin (Dec 24, 2018, 1:06pm)


This topic is not marked as primarily about any work, author or other topic.


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