00:35:14 <DanIsnotthemanBr> https://i.imgur.com/hU2Fi48.mp4
00:35:14 <DanIsnotthemanBr> This is cool
12:49:38 <plowsof11> no community meeting here today, next week. but there is a #monero-events:monero.social meeting at 18:00UTC 👍️
13:12:20 <Siren[m]> If you're at FOSDEM feel free to ping or DM me
13:12:25 <Siren[m]> We're having a small meetup
15:56:24 <HAL9000[m]> here the monero community matrix room https://matrix.to/#/#monero-community:monero.social
15:57:07 <HAL9000[m]>  * posted in the wrong room, sorry
16:24:11 <nioc> it's true, HAL does have a bug
17:55:38 <ajs_[m]> monerokon meeting in 5 minutes in #monero-events:monero.social 
19:36:57 * Stnby[m] uploaded an image: (124KiB) < https://libera.ems.host/_matrix/media/v3/download/kernal.eu/yMGfZHkZspnzuKKhRMDaPvNX/PXL_20230204_193623183.MP.jpg >
19:36:58 <Stnby[m]> Todays loot an FOSDEM
19:46:30 <monerobull[m]1> Those matrix t-shirts are cool
19:46:34 <Siren[m]> <Stnby[m]> "Todays loot an FOSDEM" <- 50% of what you collected
19:47:02 <monerobull[m]1> Gamescom loot is on another level though 
19:47:03 * Siren[m] uploaded an image: (123KiB) < https://libera.ems.host/_matrix/media/v3/download/kernal.eu/lZqhPnJaYqsTZWsHwhIFbrYI/PXL_20230204_194259751.MP_20230204204649.jpg >
19:47:49 <monerobull[m]1> monerobull[m]1: I got 4 beers and a baked potato last time
19:48:08 <Stnby[m]> monerobull[m]1: I really tried them to accept Monero, sadly aint working
20:48:30 <monerobull[m]1> <Stnby[m]> "PXL_20230204_193623183.MP.jpg" <- Curl stickers are pretty cool
20:53:08 <Stnby[m]> I did not expect to see the Curl man there, they were advertising WolfSSL, just because how shit OpenSSL is
20:56:39 <monerobull[m]1> Wireguard 
20:56:51 <monerobull[m]1> (or is this unrelated?)
21:29:40 <esac212[m]> I unmounted an external SSD with the block chain  forgetting that monerod is running. 
21:29:51 <esac212[m]> Now it says that DB is corrupted
21:31:10 <esac212[m]> --db-salvage doesn't seem to do anything 
21:31:12 <esac212[m]> How can I forget last 100 blocks? 
21:31:31 <ofrnxmr[m]> pop_blocks 100
21:45:42 <esac212[m]> I can't start the daemon because it fails to parse the DB and pop_blocks requires the daemon running
21:46:08 <esac212[m]> Are there any tools that operate directly on the DB? 
21:47:54 <ofrnxmr[m]> Yes
21:49:20 <ofrnxmr[m]> ./monero-blockchain-import --pop-blocks 100
21:52:07 <selsta> you will likely have to resync
21:52:20 <selsta> or restore from backup if you have one
21:55:55 <esac212[m]> It looks like block chain import tries to start the daemon too and fails with "can't parse a blob" error
22:01:23 <esac212[m]> But there is like 149GiB of the valid data and only the recent one is corrupted. There should be a way to truncate the DB without resyncing everything. 
22:06:13 <plowsof11> so we cant start monerod at all hm
22:07:03 <monerobull[m]1> Don't worry, i can't start bitcoind either 
22:07:09 <DanIsnotthemanBr> lol
22:08:28 <monerobull[m]1> Or at least my ord.exe can't 
22:08:34 <monerobull[m]1> Will have to fix that 
22:10:58 <selsta> esac212[m]: the db isn't sequential where you can just take the top away to remove corruption
22:15:41 <esac212[m]> https://github.com/monero-project/monero/blob/31bdf7bd113c2576fe579ef3a25a2d8fef419ffc/src/blockchain_db/lmdb/db_lmdb.cpp#L3092
22:15:41 <esac212[m]> But it looks like I can fix it by just truncating this range
22:28:10 <DanIsnotthemanBr> like a reverse pruning
22:50:39 <esac212[m]> It looks like I actually need to find the first corrupted node then discard it and then discard all nodes that contain data about blocks which are not present in the valid part of the DB, and there are no tools to manipulate LMDB so this must be coded from scratch 🥴
22:56:25 <DanIsnotthemanBr> https://github.com/kriszyp/lmdb-js
22:56:25 <DanIsnotthemanBr> ?
22:56:29 <DanIsnotthemanBr> fyi never tried it
23:05:53 <selsta> did you check the mdb_* tools? not sure if they are helpful for what you want to do
23:49:21 <esac212[m]> Yep, maybe with combination of mdb_dump + mdb_load I can achieve this but I'm not sure. I will play with the  BlockchainDB class first.