mark: A photo of Mark kneeling on top of the Taal Volcano in the Philippines. It was a long hike. (Default)
Mark Smith ([staff profile] mark) wrote in [site community profile] dw_maintenance2012-04-28 05:22 pm

Site slowness expected shortly

Hi all,

Summary: some unexpected but required maintenance is going to cause the site to slow down by some amount for the next hour or two.

Some details: We have run into an issue with one of our larger communities that requires us to make a change to the way we store comments in memcache. This means that our caches are all going to invalidate here in a few minutes when I roll the code out, so the databases are going to get very busy until we repopulate the caches.

Those of you who have been on LJ for a few years might remember when ONTD ran into an issue when they hit 16,777,215 comments and LJ had to do the same thing. I helped LJ with the code to fix the problem, but for some reason, never committed it on Dreamwidth. Now we have hit the same issue and I feel silly for having not done that, but here we are, and hence this maintenance.

Please let me know if you see any major problems, and again, sorry for the inconvenience. This really isn't a great time to be doing site maintenance.

Update: Congratulations to [community profile] sixwordstories for being the first community or journal to hit the 16.7 million comment limit in the database. :)

At any rate, currently the community is being migrated to a database where I fixed up the column widths so they won't have this limit anymore. It will take some time to move that much data, though. In the meantime the community will be in read-only mode.

I'm sorry that we hit this -- I really thought we had made this fix on Dreamwidth after LJ ran into it. It turns out we didn't, though, hence this situation. Alas.
helens78: A sheep with the DW logo on it dreams of Dreamwidth. (dreamsheep: dw swirl)

[personal profile] helens78 2012-04-29 12:54 am (UTC)(link)
Hee! Thanks for the heads up; yay for getting the fix committed, and it's always so nice to be informed that it doesn't seem like a terribly inconvenient time at all. ^_^ (I think this is maybe a geek mindset thing; if we know WHY!! something is happening, it's so much easier to deal with it, no matter when! Or maybe that's just me.)
ilyena_sylph: picture of Labyrinth!faerie with 'careful, i bite' as text (Default)

[personal profile] ilyena_sylph 2012-04-29 12:56 am (UTC)(link)
Not just you!
grackle: a face - half cat half woman (Default)

[personal profile] grackle 2012-04-29 01:18 am (UTC)(link)
I feel the same way.
turlough: dreamsheep, My Chemical Romance logo from Conventional Weapons ((dw) dreaming in technicolor)

[personal profile] turlough 2012-04-29 12:57 pm (UTC)(link)
Definitely not just you! I feel exactly the same way. Another reason for me to love DW.
sharpiefan: DW is not only occasionally NSFW,  it's occasionally Not Safe for Brain (DW warning)

[personal profile] sharpiefan 2012-04-29 05:01 pm (UTC)(link)
Oh, it's not just you, and it's not a geek thing at all. I just love the way DW tells us what's going on - often before most of us have noticed that there is anything going wrong in the first place!
inoru_no_hoshi: The most ridiculous chandelier ever: shaped like a penis. Text: Sparklepeen. (Default)

[personal profile] inoru_no_hoshi 2012-04-29 07:46 pm (UTC)(link)
Completely off-topic, but ahahahaha icon love. May I steal it?
sharpiefan: DW is not only occasionally NSFW,  it's occasionally Not Safe for Brain (DW warning)

[personal profile] sharpiefan 2012-04-29 07:49 pm (UTC)(link)
Yep! It was made by [personal profile] zarhooie, so crediting them would be nice. :D
inoru_no_hoshi: The most ridiculous chandelier ever: shaped like a penis. Text: Sparklepeen. (Default)

[personal profile] inoru_no_hoshi 2012-04-29 07:52 pm (UTC)(link)
It somehow completely fails to surprise me that [personal profile] zarhooie made it. :D Thank you!