Linked Questions
34 questions linked to/from How large should be mysql innodb_buffer_pool_size?
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How to set Innodb Buffer Pool Size [duplicate]
I have a database using innodb completely. Its now having a innodb_buffer_pool_size at 128MB. Which I know is very less for my user.
But no matter what I do it won't change. I have added a value of ...
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142
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Possible to make MySQL use more than one core?
I've been presented with some dedicated MySQL servers that never use more than a single core. I'm more developer than DBA for MySQL so need some help
Setup
The servers are quite hefty with an OLAP/...
- 70.1k
64
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6
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About single threaded versus multithreaded databases performance
H2 is a single threaded database with a good reputation regarding performance. Other databases are multi-threaded.
My question is: when does a multi-thread database become more interesting than an ...
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DELETE command not completing on 30,000,000 row table
I have inherited a database and am looking to clean and speed it up. I have a table that contains 30,000,000 rows, many of which are junk data inserted due to an error on behalf of our programmer. ...
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Multi cores and MySQL Performance
Importance of RAM is an established fact but far less material is available about the importance of cores and multithreading when it comes to the usage of CPU by MySQL. I am talking about the ...
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What to set innodb_buffer_pool and why..?
I have 170GB of InnoDB index and Data.
I have to readjust the innodb_buffer_pool size for better performance.The Max table size of a InnoDB table(Index+data) is 28GB.
So what should be the optimal ...
- 9,717
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MySQL performance impact of increasing innodb_buffer_pool_size
I have two databases one of size 170 MB and second one is of 15 MB, both having INNODB tables and innodb_buffer_pool_size is set to 8 MB.
My queries are responding well now i.e under mili seconds.
...
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Configuring MySQL (my.cnf) for MyISAM and InnoDB
I want to convert some (not all) the MyISAM tables to InnoDB.
Current my.cnf
Show engines output
Server has two 6-core Xeon processors (2 threads per core = 24 threads)
What would be the best ...
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3
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2
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MySQL 5.5 High CPU Usage
I have been working with a client with high traffic website(500k visitors and 600-800 active users at any given time). This uses wordpress and the DB is using MyISAM engine. The problem we had was ...
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3
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Occasionally simple queries are slow with InnoDB caused by slow query end [closed]
We are having serious issues with one of our productions servers. The setup in question is CentOS 7 64-bit server with 16 GB of ram and 250GB SSD (so the setup should be very fast). The LEMP stack is ...
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Huge differences of performance of MySQL in two servers
We have a MySQL server installed in two different machines, a testing server and a production server, both windows, which is used by a web application.
The problem is that there are HUGE performance ...
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2
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Would increasing innodb buffer pool size prevent a mysql crash?
My server keeps running out of memory for mysql. I keep getting. 150708 3:39:09 [ERROR] /usr/sbin/mysqld: Out of memory (Needed 258064 bytes)
When I looked in my.cnf I saw that ...
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2
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Why would increase in innodb_buffer_pool_size slow down MySQL?
5.1.68-cll - MySQL Community Server on CentOS
The system has 32GB of RAM.
I increased innodb_buffer_pool_size from 10240M to 15360M (10GB -> 15GB).
Time taken for a series of identical operations ...
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Can I reduce MySQL memory usage, or do I need to add more RAM?
I have a VPS with 2.25GB of RAM. MySQL is using 1.4GB with only four users on my site right now. It seems to use this amount even when no users are online. The available memory of my server regularly ...
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AWS Aurora running out of freeable memory and crashing
We have an issue with our AWS Aurora MySQL instance running out of freeable memory and crashing as a result. AWS's response was to upgrade to a bigger instance, but I don't feel that will necessarily ...
