Failed to start mysql due to start_lsn and ens_lsn issue (21 replies)
I had a unexpected reboot which after mysql does not want to start. There are not many resources regarding the issue most are for backup/incremental backup issues. This was just a plain server power...
View Articlemysql inno db foregin key issue (3 replies)
I've noticed following error when i run the command: "SHOW ENGINE INNODB STATUS". please help to resolve this issue.Thanks ==>error in the output: ------------------------ LATEST FOREIGN KEY ERROR...
View ArticleGetting Error - ERROR 1205 (HY000): Lock wait timeout exceeded; try...
There was one long running query for delete operation. Due was taking more time, thought I will kill the command and break query in smaller chunk. Now when I am trying to delete any data...getting...
View ArticleSolution for table lock or deadlock in Mysql Database (1 reply)
Hi All, We are using MySQL Database version 8.0.30 and it's running on AWS cloud platform. I am new to MySQL Database. Basically Our application built in Java with spring boot, and this application is...
View ArticleMySQL 8.0 Dynamic Redo Log Sizing (no replies)
MySQL 8.0 Dynamic Redo Log Sizing - https://www.percona.com/blog/mysql-8-0-dynamic-redo-log-sizing/ MySQL 8.0: InnoDB New Lock free, scalable WAL design -...
View ArticleHow can i restore database? (no replies)
Hello, we are using mysql 8.0 and by mistake we deleted ibtmp1 and we can't start mysql anymore and we can't even restore a backup. ibdata1 file is there but other ib* files are deleted... Please...
View Articlepotential bug and/or not understanding behavior (4 replies)
Hi all- I originally directed this to Squirrel SQL but it may not be their issue. I can't get multiple queries to show up in processlist or in connections option in the workbench. I set autocommit...
View Articlelocking is not working (WHY)? (1 reply)
Hi all- I will keep it simple. The steps in this web page do not work for me. Does anyone have an idea what I can do to fix? I ran mysqlcheck --all-databases -p. It came back OKAY....
View ArticleMySQL: GIPK (InnoDB and Generated Invisible Primary Keys) (no replies)
MySQL: GIPK (InnoDB and Generated Invisible Primary Keys) — "MySQL 8.0.30 adds GIPK, generated invisible primary keys. They should only ever be needed if you have external software running where you...
View ArticleMySQL 8.0.30: Redo Log resizing is now an online operation, which is awesome....
https://twitter.com/isotopp/status/1562014316051812353 - MySQL 8.0.30: Redo Log resizing is now an online operation, which is awesome. - The Redo Log handling has been completely rewritten....
View ArticleI did a stupid thing (no replies)
I did a very, very stupid thing.I unistalled and updated Mysql without backing up the database. After the update the connection was still available in Workbench, but no tables. I could only find a...
View ArticleMining the MySQL Performance Schema (no replies)
Mining the MySQL Performance Schema — "The MySQL Performance Schema is a gold mine of valuable data. Among the many nuggets you can extract from it is an historical report of transactions: how long a...
View ArticleMySQL 8.0: Dynamic InnoDB Redo Log (no replies)
MySQL 8.0: Dynamic InnoDB Redo Log - https://lefred.be/content/dynamic-innodb-redo-log/
View ArticleMySQL BulkLoad (YOLO mode) (no replies)
MySQL BulkLoad (YOLO mode) — “And now let’s quickly push 2 billion rows into this database VM.” — "It is not ACID, so if anything goes wrong during the load, the instance is lost. That is why it is...
View ArticleMysql8.0 event 'committing alter table to storage engine' hangs During DDL...
Hello Regarding wait event "committing alter table to storage engine". All i can find about it is "The server has finished an in-place ALTER TABLE and is committing the result." The Issue I have is...
View ArticleMySQL 8.0: how to find long running transactions in MySQL? (no replies)
MySQL 8.0: how to find long running transactions in MySQL? - https://lefred.be/content/mysql-8-0-how-to-display-long-transactions/
View ArticleNew laptop under 50000 (no replies)
Hey, I am royson from metalsupplycentre.com/. We were planning to buy a new laptop under 50000 can someone suggest to me a new trending laptop which has high graphics and SSD if someone knows good...
View ArticlePoorman’s MySQL monitoring/trending (no replies)
Poorman’s MySQL monitoring/trending https://lefred.be/content/poormans-mysql-monitoring-trending/ https://lefred.be/content/a-graph-a-day-keeps-the-doctor-away-mysql-checkpoint-age/...
View ArticleTo understand about innodb_rollback_on_timeout (no replies)
Hi All, I would like to understand why the default value of innodb_rollback_on_timeout is set to OFF and from documentation understood that this rolls back only the last statement in a transaction and...
View ArticleAvoiding table locks (no replies)
Simple description: I'm doing a big delete and want to avoid locking the table for other users reading the table. More complex description: I have a large(ish) table with 200K/day recs going back...
View Article