my.cnf is the configuration file for MySQL server, client programs, and utilities.

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147 views

How to configure my.cnf for Mysql 5.1, which is using too much CPU?

I am new Database engineer. I am having trouble in my server which is using too much CPU on database query(simple count statement). I have googled about it, so i found out it depends on system ...
0
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1answer
915 views

How can I set a default session sql_mode for a given user?

I want to have a default session sql_mode that is different from the global sql_mode. I can set it manually, but I'd like to do it automatically. I thought I could add it to .my.cnf, but that ...
0
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1answer
395 views

Errors while creating multiple mysql-5.5 instances

I have installed 3rd mysql instance on my testing server. 2 instances already running without any issues. When I installed 3rd instance by mysql-5.5.30 zip source, it installed successfully but when ...
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1answer
54 views

mysql server is not starting

mysql server is not starting after modifying configurations key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 query_cache_size = 16M after ...
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45 views

amazon small instance mysql query too slow

I have mysql database with 1.5 millions records with 2 million categories records. when i do query on categories and city where clause it takes 304989 milliseconds. on localhost it too fast. i tried ...
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0answers
411 views

MySQL is running but not working [closed]

In an attempt to tune MySQL to make it work with a recent installation of Drupal I had to modify the MySQL settings on my server. After modifying the configuration file for MySQL (/etc/my.cnf) MySQL ...
0
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1answer
57 views

Good configuration for 2gb (my.cnf) [duplicate]

I'm little newbie in configuring mysql and i seek a good configuration for mysql i have one site in ajax with many query and very slowly with VPS Iam in kimsufi 2gb i run only mysql in vps not apache ...
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2answers
678 views

My.cnf with 64GB RAM

May the following my.cnf file be fine for a dedicated server with 64GB of RAM (on Debian)? I'm running just one website on the server and on high load data insert in some table takes centuries...it ...
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1answer
71 views

How do I make binlog-format=ROW the start up default in the /etc/my.cnf file?

I can run the query SET GLOBAL binlog_format = 'ROW' and it works for that session. How do I make this setting stick after stopping and restarting MySQL? NOTE: I am on version 5.5.19 of MySQL ...
2
votes
1answer
643 views

MySQL: bind-address 0.0.0.0 in my.cnf does not work?

I'm new to mysql. I want to connect to mysql server using whatever ip I want. I read that all I have to do is to add to my.cnf file the line bind-address = 0.0.0.0. That's what I did. I restarted ...
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0answers
188 views

mariadb out of memory crash

I have recently migrated from mysql (5.5.36 MySQL Community Server (GPL)) to MariaDB (10.0.10-MariaDB-1~wheezy), along with switching my cloud hosting provider. Both machines have 2GB RAM and 1GB ...
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1answer
34 views

“general_logs” is not being written [closed]

I wonder why my data inside my "mysql" table "general_log" is not writing more record, stock given the last day was yesterday 04/27/2014. My my.cnf file is as follows: [mysqld] ...
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1answer
187 views

Mysql 5.5 InnoDB growing CPU - Going crazy

Good morning, I'm currently facing a problem where CPU usage keeps going up until the server crash. I've tried multiple best practices proposed in this forum and on Percona, reinstalled the server ...
1
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1answer
55 views

What does this mean - ~/.my.cnf

When I run $ mysqld --verbose --help | less I got information like Default options are read from the following files in the given order: /etc/mysql/my.cnf /etc/my.cnf ~/.my.cnf As per my ...
2
votes
1answer
96 views

Need help tuning my.cnf file

I need help tuning mysql. Currently it is using a lot of CPU. I dont find any query that last longer than 3 seconds in SHOW PROCESSLIST and there are only around 20-25 running most of the time. Still ...
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0answers
155 views

MySQL - Out of memory: Kill process 3046 (mysqld)

We run a MySQL (v5.6.17) dump backup every 4 hours, and today noticed: Apr 19 20:09:30 mysql1 kernel: Out of memory: Kill process 3046 (mysqld) score 970 or sacrifice child Apr 19 20:09:30 mysql1 ...
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3answers
13k views

How do you calculate mysql max_connections variable?

How do you calculate mysql max_connections ? What do you take into consideration ?
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1answer
248 views

Why “.my.cnf” file is empty?

I want to edit some of InnoDB variables ,I go to the .my.cnf which is located in home/.my.cnf I found the file just empty. And when I check SHOW VARIABLES in MySQL it gives me all the variables and ...
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2answers
98 views

optimal size of innodb buffer pool

I read a lot of optimal number of innodb_buffer_pool_size and people say it must be larger with 10% than the innodb tables size, what is 60M. Accordyngly this the optimal size of the buffer is about ...
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0answers
47 views

How can I check the number of TCP/IP connections in MySQL's Connection Queue ( back_log )?`

I'm chasing connection issues with a very busy MySQL server and I've increased the back_log setting from the default of 50 to 2048. I can see that the setting has taken affect in the DB, but I was ...
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2answers
75 views

Strange issue regarding my.cnf

I'm getting a weird message from phpmyadmin saying: #2006 - MySQL server has gone away What I found online is that I should increase the size of max_allowed_packet witch should be in the my.conf ...
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2answers
5k views

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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766 views

MySQL: High sort_buffer_size setting value

Thing is I was getting plenty of 131104 20:10:36 [ERROR] /usr/sbin/mysqld: Sort aborted with 256M and rather erratic behaviour in my load test. Now at sort_buffer_size = 1024M ...
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344 views

my.cnf configuration for 1and1 XL8 Server 8 core cpu and 8gig ram

I am trying to tweak my server's my.cnf file because I have been receiving numerous "too many connection" warnings when doing database back ups among other things. I know I also need to tweak other ...
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1answer
356 views

my.cnf validation [closed]

We have moved our server from old 8 GB RAM Server to new 16 GB RAM server so that we could have better performance. The server is still consuming lot of MEMORY. The tables in the database are not ...
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0answers
145 views

Relation between max values for table_open_cache and open_files_limit?

From MySQL documentation: Max value limit for open_files_limit is 65536 and table_open_cache is 524288. When I applied max limit, mysql server started but with following warnings in error log: ...
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2answers
11k views

MySQL 5.1 InnoDB Configuration / 24GB RAM - bi-xeon high load

i'm running a facebook app which currently has 300 - 600 concurrent users (and growing). To get the hardware ready for growing i changed my i7 / 12gb ram / 2x 80gb intel x25 ssd's (debian 5.0 / mysql ...
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1answer
4k views

Enabling LOAD DATA LOCAL INFILE in mysql

LOAD DATA LOCAL INFILE is not enabled by default. Normally, it should be enabled by placing local-infile=1 in my.cnf. But it does not work for all installations. In my experience, it worked for Debian ...
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1answer
2k views

What is wrong with table_cache hit rate?

In my.cnf I have: table_cache = 524288 open_files_limit = 65535 Both are at max allowed value for mysql config. Both are less than max open file limit: # cat ...
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2answers
52 views

MySQL Logging Options

I want to know what logging options are available to me in MySQL; I find a lot more results about binary logging than I do about general/error logging and I'm not sure what options are available to me ...
0
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1answer
221 views

MySql - set my.cnf location at server start

I want to have two MySql servers running on the same system (for master-slave replication tests purposes). To be able to do this I need both servers read different my.cnf files. As I see at startup ...
2
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1answer
1k views

Reloading MySQL my.cnf changes

Do you have to restart MySQL to edit changes? Or can you edit them on the fly and restart MySQL or make the changes inside MySQL? This server runs 100s of website that are active and I don't really ...
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1answer
302 views

Installing and enabling both master and slave semisynchronous plugins on same server

I want to run a semisynchronous replication setup, and for simplicity I'd like to not have to INSTALL and UNINSTALL plugins when a slave is promoted to a master. So I'm wondering if I'll experience ...
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0answers
461 views

InnoDB errors after having deleted “ibdata1”

By accident, I have deleted the ibdata1 file in the MySQL directory because MySQL wasn't functioning correctly. After reading so many forums, I found a post that recommended deleting the 3 files ...
4
votes
1answer
1k views

MySQL: Can't find .ibd files after turning on innodb_file_per_table

Question: This a question about MySQL. Let me give the specifics of my setup: Mac OSX 10.6.8 MySQL 5.5.28 Workbench 5.2.44 for all administration InnoDB engine exclusively In order to manage ...
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1answer
209 views

For a InnoDB only DB, which of these elements can be removed?

So, I'm trying to set up a Drupal 7 my.conf file that's combining best practices from various performance blogs. I'm realizing though that some of them are older than others, and many aren't assuming ...
2
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1answer
325 views

Drupal 7 Uses InnoDB, so do I need other configs?

If I'm optimizing a database that will be delivering multiple Drupal 7 websites, all using InnoDB, do I need to worry about [myisamchk] & [isamchk] sections, or can I just worry about the stuff ...
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2answers
96 views

What settings should I use in my.cnf

We have about 5-6 different internal webapps (staff use only) that we will be transferring across to a new virtual server, however I need to setup our my.cnf settings first and I am lost (I am web ...
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1answer
1k views

MySQL 5.6 OS X 10.8: how tell if my.cnf read?

With mysqld running, I expect to see that /etc/my.cnf has been used by at least one of the commands ps aux | grep mysql | grep -v grep mysqladmin variables | grep defaults-file showing the value ...
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77 views

MySQL max_connections Changed Without Notice

I'm running a Linux (512MB of RAM) server with MySQL 5.1. I host an app that is used by a small # of users (less than 50). Everything has been working fine until yesterday, connecting to my DB would ...
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votes
2answers
5k views

Is my.cnf for mysql 5.5 is suitable and well tuned for below hardware spec?

My Hardware Spec Technology: Ivy Bridge CPU: Intel Xeon E3 1245v2 Intel Smart Cache: 8MB Cores / Threads: 4 / 8 Frequency: 3.4GHz+ / 3.8GHz Turbo Boost RAM: 32 GB DDR3 Hard disk: 2x 2TB SATA3 Raid 1 ...
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1answer
3k views

16 Cores 12 GB RAM server MySql Configuration - my.cnf

The server takes 20+ seconds (wait time/slow IO response time) to response to a HTTP request even with memcached and APC installed. I believe this has something to do with MYSQL since the site as lots ...
2
votes
3answers
12k views

How to initiate MySQL on Mac OS X 10.6.8?

I followed this tutorial to install MySQL on Mac OS X 10.6.8. Now I get he following errors: $ mysqladmin version /usr/local/mysql/bin/mysqladmin: connect to server at 'localhost' failed error: ...
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3answers
731 views

Mysql optimization help

I've tried optimizing mysql as good as I could, but apparently I'm not to good at it :-) So I come to you guys for help. Server specs are: AMD Opteron CPU 8 cores 16 GB RAM 2x2.000 GB HDD 7.200 RPM ...
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33 views

MySQL: optimal configs / methods for ALTER of large MyISAM table to InnoDB (17gb+) [duplicate]

I have a large MySQL (5.1) MyISAM table (13gb table, 4GB indexes - 40mm+ records) I'm going to be converting this table to InnoDB in a production environment. The DB is on a cloud server with ...
3
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1answer
707 views

How to set datadir to different values based on the hostname in my.cnf?

How to set datadir to different values based on the hostname in my.cnf? I want to use the same my.cnf file on a Linux machine and a Mac OS X machine where the datadir should have different values.
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2answers
1k views

Mysql replication - Error No. 1146&1062

short version In master master replication, How to have one master write data with odd IDs and the other one with even IDs? Is it the way to avoid conflict? detailed version I wanted to setup a ...
2
votes
1answer
8k views

MySQL my.cnf vs my-huge.cnf

I've recently installed MySQL server and client 5.5.28 through rpm packages on an openSUSE machine, and I was not able to locate my.cnf file. I look into all directories mysql --verbose --help | grep ...
4
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2answers
9k views

What happened to my-*.cnf in MySQL 5.6.8?

Up to MySQL 5.6.7, the official RPM was shipping with these files: /usr/share/mysql/my-innodb-heavy-4G.cnf /usr/share/mysql/my-medium.cnf /usr/share/mysql/my-huge.cnf /usr/share/mysql/my-large.cnf ...
2
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2answers
3k views

The best MySQL configuration for my server

I'm little newbie in configuring mysql and I need some advices. Few days ago I made little home server on Ubuntu Server 12.04 with samba, mysql 5.5, apache 2.2, PHP 5.4.6 etc. I'm using it to ...