Skip to main content

Friendica Support reshared this.


opensocial.at database data seems corrupt


!Friendica Support

It seems like I do have a problem with my opensocial.at database :-( .

The database ran full about a year ago (what a shame, I know :( ...) and I had to recover some of the data (otherwise I had to import a backup about ~12hours ago, I tried to avoid to loose posts for this period of time for my users ...). So I stopped it, started it with innodb_force_recovery=3, repaired it and checked it with mysqlcheck.

Two days ago, I updated the mariadb from 1.10.3 to 1.10.10 and now the problems occur again.

I stopped the MariaDB 1.10.3 container, updated it to 1.10.10 and started it again .. And MariaDB started a "crash recovery". I really don't know why... The crash recovery wasn't successfully (I tried it ~4 times), so I had to add innodb_force_recovery=3 again.

Now the database went up, but everytime I stopped it and started it again, the crash recovery appears again.

So after the instance was up and running, I dumped the whole database with mysqldump into one single *.sql , started a brand new MariaDB 1.10.10 and imported the dump again.

So far so good ..

But... unfortunately, after a restart, the crash recovery appears again. So I'm totally lost, what's now happening..

I noticed during the import that one batch of rows took about 2 hours to complete with the result query affected 0 rows.

here's my customized.cnf, which I'm using (it's a Hetzner root server with 64 GB RAM and 12 CPUs):
[mysqld]
query_cache_size = 0
query_cache_type = 0
performance_schema = ON
join_buffer_size = 140M
innodb_buffer_pool_size = 12G
innodb_log_buffer_size = 31M
innodb_log_file_size = 3G
table_open_cache = 1000
max_connections = 400
wait_timeout = 200
interactive_timeout = 4000

log-bin = mysqld-bin
transaction-isolation = READ-COMMITTED
binlog-format = ROW
skip-innodb-read-only-compressed = ON
innodb_read_only_compressed = OFF
innodb_use_native_aio = OFF

innodb_fast_shutdown=0
innodb_max_dirty_pages_pct=0
innodb_buffer_pool_dump_at_shutdown=1
innodb_buffer_pool_load_at_startup=1


For the new MariaDB instance, I didn't add any customization to avoid any wrong options.


currently, it makes a recovery again:
db_1     | 2022-12-16 10:41:00 0 [Note] InnoDB: Rolled back recovered transaction 371172                                                                                                                                                                                                    
db_1     | 2022-12-16 10:41:11 0 [Note] InnoDB: To roll back: 1 transactions, 7611737 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:41:26 0 [Note] InnoDB: To roll back: 1 transactions, 7608132 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:41:41 0 [Note] InnoDB: To roll back: 1 transactions, 7603940 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:41:46 0 [Note] DDL_LOG: Crash recovery executed 1 entries                                                                                                                                                                                                          
db_1     | 2022-12-16 10:41:46 0 [Note] Server socket created on IP: '0.0.0.0'.                                                                                                                                                                                                             
db_1     | 2022-12-16 10:41:46 0 [Note] Server socket created on IP: '::'.                                                                                                                                                                                                                  
db_1     | 2022-12-16 10:41:47 0 [Note] mariadbd: ready for connections.                                                                                                                                                                                                                    
db_1     | Version: '10.10.2-MariaDB-1:10.10.2+maria~ubu2204'  socket: '/run/mysqld/mysqld.sock'  port: 3306  mariadb.org binary distribution                                                                                                                                               
db_1     | 2022-12-16 10:41:56 0 [Note] InnoDB: To roll back: 1 transactions, 7601453 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:42:11 0 [Note] InnoDB: To roll back: 1 transactions, 7600146 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:42:26 0 [Note] InnoDB: To roll back: 1 transactions, 7598395 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:42:41 0 [Note] InnoDB: To roll back: 1 transactions, 7595967 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:42:56 0 [Note] InnoDB: To roll back: 1 transactions, 7594000 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:43:11 0 [Note] InnoDB: To roll back: 1 transactions, 7590646 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:43:26 0 [Note] InnoDB: To roll back: 1 transactions, 7585618 rows                                                                                                                                                                                                  
db_1     | 2022-12-16 10:43:41 0 [Note] InnoDB: To roll back: 1 transactions, 7579929 rows
db_1     | 2022-12-16 10:43:56 0 [Note] InnoDB: To roll back: 1 transactions, 7574058 rows
db_1     | 2022-12-16 10:44:11 0 [Note] InnoDB: To roll back: 1 transactions, 7568214 rows

Friendica Support reshared this.

Wow, now it's super fast... thanks for the work. Do you have a way to receive donations?

Friendica Support reshared this.

@Torsten Torsten
Me?
No donations needed. I’m just happy to help :)

Friendica Admins reshared this.


Large database


!Friendica Admins
Hi everyone,

last week, I struggled with the size of my database for opensocial.at .. It went full (80GB) .. I added additional 10GB to the volume, but it seems to constantly increase and I think in a few weeks, I will be at the same situation like the last week.

Is there a possibility to shrink the database, or to wipe old data?
I recently deleted about 1.200 spam accounts (and set the register option to approval first ... lessons learned...). Are there leftovers inside the db which I can delete?

It's not that I don't have enough space, but I'm afraid of my backup borg-backup space in the near future ^^

Friendica Admins reshared this.

nope, there're no active relays "Das System hat derzeit keinerlei Relays abonniert."

Friendica Admins reshared this.

Disable the avatar cache in the admin settings. The avatar cache is most likely the biggest table in your database. Also enable a maximum lifetime for posts (See the performance section in the admin settings)

Squeet.me with now around 5.000 users has da database size of around 100 GB.
This entry was edited (4 months ago)
⇧