While I’ve been working with MySQL host more frequently, I’d to drop a database due to storage space constraint. When I’m executing the drop command,it showing an error that
"ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails"
Some strange error but not severe since MySQL database is [...]
I have a situation to create multiple root users for managing a large Database. I used to execute ‘ grant all *. user@localhost identified by ‘password’ ” to create super users earlier. But I realized that these users can’t alter the existing users permission set even though they can create same privilege set users.
While you are working with Huge MySQL data, you will need to switch your tables to innodb storage engine to get fast transactions performance. Suppose if you have a requirement to restore the database which having +>400G volume and the target server having the same database name exist. So if you restore the database, the [...]
One the busiest MySQL server recently had an issue with “SQL Error 1040: Too Many Connections”. This server has already set 1000 connections limit which I believe quite enough to handle our platform. But we were getting frequent MySQL outage due to this kind of errors. We know that it’s a application leakage issue and [...]
One of the new projects using Mongodb as database for push notification and it’s library support to be enabled on the PHP as well. After googling, it is found that we can get the mongodb php driver from the GitHub repository and we need to install manually.
Then only challenge I’m facing is, My server [...]
We can improve the MySQL server performance at the best level if it is being used for read operations most of the time. Based of the Database server analysis, it is observed that more than 70% of traffic is being used “select” statements ie read operations. So I increased the “query_cache_size” and found faster throughput [...]