InnoDB is the main ACID-compliant Storage Engine used in MySQL.

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How do I configure full-text InnoDb functionality in MariaDB on AWS RDS?

I'm in the process of moving to MariaDB on RDS. My tables are up and running and everything looks good, but given that I'm on MariaDB 10.0.24, I'm considering switching a couple of my MyISAM tables ...
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InnoDB table takes more than 1 second for insert query

during an insertion it takes about an second for sometimes (not always) in MySQL 5.6.17-log which is causing performance issue How to over come this issue current set of parameters for innodb ...
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2answers
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Removed ib files to make mysql start but now it does not recognize tables

I had problem starting innodb and read somewhere that deleting ib_logfile0,ib_logfile1 files works. It worked and mysql started again and when I use "Show tables" it shows all tables of my database ...
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1answer
16 views

How to exclude specific table from innodb buffer pool?

Here's my situation. I have one really large table that holds about 90 GB of data. I've utilized DATA DIRECTORY to place that table on another drive, as I rarely use the table and don't want it ...
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1answer
91 views

How to tune MySQL server when big peak of usage is expected

I'm having pretty big issues trying to tune my MySQL server. I was expecting a lot of people on my website after buying a tv ads between 5pm and 6pm, I have more or less 300 persons at the time on the ...
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1answer
52 views

MySQL (MariaDB) crashing

Good morning - I have reviewed a previous post regarding changing the performance schema to "Off in the configuration settings. It looks as though our configuration is already set to this. So not sure ...
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1answer
47 views

MariaDB refuse to start after VServer reboot

After I rebooted my VServer, MariaDB refuses to start. This are the error messages: # systemctl status mysql.service ● mysql.service - LSB: Start and stop the mysql database server daemon Loaded: ...
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74 views

InnoDB causing mysqld to crash on Amazon Linux AMI

This Amazon Linux server is running a single WordPress site that is constantly crashing. The way to resolve it seems to be to run service mysqld restart and it resumes operation until it crashes ...
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1answer
46 views

MySQL keeps crashing at unknown intervals

Version: '5.1.73' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution 160130 08:29:38 mysqld_safe Number of ...
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1answer
259 views

Mysql innodb_buffer_pool_size in relation to innodb_buffer_pool_instances

I run a virtual server with an Owncloud installation on it. Now Owncloud has the problem that the way it's developed at the moment, each file upload causes a little MySql overhead. So is very ...
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24 views

InnoDB file per tablespace

I am using following syntax to create innodb table: create table InnoDB_Test(a INT) DATA DIRECTORY='/var/log/storage/MySQL' INDEX DIRECTORY='/var/log/storage/MySQL' engine=InnoDB; I want to create ...
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1answer
34 views

how to prevent Innob db spiking at 97% Disk I/O Utilization

Our database(InnobDb) is spiking at 99% I/O at random times. After the spike it goes down to about 2% until it spikes agian. There are not some "super" queries that are running in these intervals. We ...
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6 views

Unable to enable Barracuda in MySQL 5.5 [duplicate]

How do you enable Barracuda on MySQL 5.5 running on Ubuntu 14? I recently did a fresh install of Ubuntu 14, and after I install mysql-server I tried to enable Barracuda. In Ubuntu 12, all I had to ...
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109 views

InnoDB settings - mysql tuner results after running for awhile

Newbie as far as InnoDB goes, but I installed MySQLTuner awhile back and according to this it looks like I need to adjust my settings, but can someone chime in with some deeper understanding of all ...
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1answer
91 views

MariaDB won't start - fails to check integrity

I have a MariaDB installed with brew in my macbook. Worked fine till today. All of a sudden it wound not start: -> mysql.server start Starting MySQL ERROR! also, if I issue mysql -uroot or any ...
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3answers
54 views

Mysql master slave replication fail PID error

I have Master on 5.6 & Slave on 5.5, this will be the test ENV to check if 5.6 can replicate on 5.5 on PROD. I am getting this below error when starting mysql ERROR! MySQL server PID file ...
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1answer
93 views

mySQL keeps crashing with a specific Wordpress theme enabled

nice people ;) I have a problem with my server after I setup a new theme on one of my wordpress sites. At first mySQL started to crash once in a while, then it became more and more often and now you ...
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3answers
83 views

moving live innodb db from one server to another

I need to move an innodb db from one server to another - it is also going from mysql > mariadb. I want to ensure there are no problems at all and with that I will be using mysqldump to export and ...
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After update and reboot mysql do not start on debian Wheezy

I've been rebooting my VM and I had before a mysql update and I can't start mysql server tail -f /var/log/mysql.err InnoDB: You can disable Linux Native AIO by setting innodb_use_native_aio = 0 in ...
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1answer
205 views

Unusually high RDS MySQL memory

could use your help in understanding this. I'm running an RDS MySQL instance (db.m3.large on SSD) with 100GB of storage. I'm a little freaked out that my memory is 50% there: I must be doing ...
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1answer
3k views

Recover mysql database innodb 'table doesn't exist'

Our server crashed last week and we lost a lot of information. We were able to recover .frm files for the tables, ib_logfile0, ib_logfile1 and ibdata1 but no .ibd. I've tried the ...
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19 views

Examine MySQL INNODB folder

Consider the following situation. I currently have an Ubuntu installation installed in my Virtual Machine. This installation has mysql installed in it. Data for the mysql-server can be found under; ...
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1answer
32 views

Why mysql don't start in ubuntu server?

I edit mysql config for remote connect, I paste there bind_address = 0.0.0.0 After it i tryed to restart (sudo /etc/init.d/mysql restart or start) but I see fail of it in both commands. in logs ...
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1answer
1k views

MySQL innodb recovery from datafiles

Last night, my MySQL server crashed and now I have several databases, which data I'm unable to recover. According to errorlog, the coruptions in tablespaces happend quite a while ago (few months), ...
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2answers
872 views

InnoDB: mmap(68878336 bytes) failed; errno 12

The screenshots explain everything, first I try to start it, and it won't, so I check the status, then I check the logs. After following a number of previous suggestions that I founder around ...
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188 views

MySQL (InnoDB) - processes waiting on futex

Currently troubleshooting a MySQL server spending a lot of time in futex syscalls. All databases are InnoDB and seeing high load on my 16 core machine, and slightly more than half of CPU time is in ...
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342 views

Creating my.cnf leads to error with innodb

I got access to an existing mysqld server (5.5.35 from Debian Wheezy) with existing data in production use. I found no existing configuration file in /etc/my.cnf or /etc/mysql/my.cnf. So I copied the ...
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2answers
70 views

MyISAM Throughput spike at 12000 record insert

I am testing database performance with bulk record inserts. Both systems are identical apart from storage engine **Database 1000 4000 12000** MySQL_InnoDB 60.95330976 ...
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1answer
17 views

innodb files in wrong directory

I have created a database called TEST with innodb tables. When I look in the /var/lib/mysql/TEST directory I see a .frm file for each table. However, there are no .ibd files in that directory. The ...
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212 views

MySQL/Percona Server sudden CPU usage spikes

I've got some trouble with Percona Server 5.5: suddenly abnormous MySQL CPU usage caused the system to become unresponsive as it was eating up all CPU with a large number of threads. It's a 24 core ...
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1answer
743 views

InnoDB “Table xx Is Full” during database alterations

I am running Percona Mysql Server 5.6.14-56 on CentOS 6.3 64bit. Server has plenty ram (96gb) and storage free. File system type: ext4 dev/sda6 ext4 1093623528 56576512 981494148 6% ...
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193 views

mysql innodb crash assertion

I've got some very big trouble with my innodb database since friday. The mysql server crashes whenever I do some operations on a specific table which is about 22GB. inserting data works, all other ...
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1answer
402 views

MySQL crashing at service start. Hit a bug? DB corruption?

I've a web server that's offline at this moment because MySQL fails to start with an exception. I can't find the root cause of the problem, but I'm afraid of database corruption crashing the MySQL ...
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2answers
303 views

Data lost in MySQL DB when roll back happened after system restart [closed]

Few days back due to electricity outage, client's system got restarted, resulted in DB rollback. But due to this roll back, we lost around 2k existing records from various tables.( which were already ...
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1answer
1k views

how to permanently increase innodb_buffer_pool_size on ubuntu

I have read lot of posts & manuals to try to find out how to increase memory in mysql 5.6 on Ubuntu, which say there are 3 methods: by editing innodb_buffer_pool_size in the my.cnf by command ...
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1answer
185 views

mysql server mostly stops working when binlog disabled

Performance was a little slower than I'd like on a mysql server, and we don't use replication and don't need point-in-time restores. So one recommended way to improve performance seems to be turning ...
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2answers
1k views

No changes made but MySQL InnoDB overloading CPU

I haven't changed any scripts or settings what so ever. Now I have CPU load at least 4 times higher. Mysqld is taking around 360 %CPU according to TOP. It's Debian, I'm running some MyISAM tables but ...
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1answer
1k views

Mysql crashing/restarting, InnoDB: Unable to lock ./ibdata1. Can't kill via 'stop';

My server seems to crash/restart under a load that would not have previously made it crash. How can I troubleshoot this? VPS is running Centos 6.x, 8GB ram Mysql is crashing/restarting itself ...
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1answer
395 views

Mysql crashed, dumped DB's in recovery mode. What now?

I ran into an InnoDB issue that only seemed to get worse as I tried to fix it. Started with InnoDB: Unable to lock ./ibdata1, error: 11, I moved and then copied it back. I soon had an ib_logfile issue ...
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1answer
119 views

Set MySQL innodb buffer pool size on IIS7

I am using VPS, Windows 2008 r2, IIS7, MYSQL 5.1.73, Hardward Config: Ram 2GB , Hardisk 40GB On this VPS only 1 .NET application is running. Application is currently using by only 5 users. I found ...
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1answer
599 views

High CPU on MySql Fusion-io server

I've just finished reading this old Q&A which had some really good detailed information on a similar setup to ours, though unfortunately our problem (now) is not with replication. MySQL ...
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356 views

How to restore a corrupted MySQL master database from a slave database?

I recently discovered that the master db in a setup I'm running became corrupted. The slave was getting all of the data correctly so I have a solid backup. What I'd like to do is use replication to ...
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1answer
419 views

Never ending transaction problems after mysql 5.0->5.6 upgrade

I upgraded our entire backend mysql db from 5.0 to 5.6, including changing a few tables to innodb, and we've been having nothing but problems with never ending transactions since. I still have a ...
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1answer
863 views

Innodb performs IO Operation when idle

I am currently doing some stress testing where I am pushing inserts to the database as fast as I can. The simulation inserts 10000 records per second. After inserting around 200 million records I ...
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1answer
69 views

Restore InnoDB to different machine

I currently have backups that were taken with Percona XtraBackup of all my mySQL databases. My specific scenario is that I want to restore a month old InnoDB database snapshot to my local machine for ...
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1answer
162 views

MySQL suddenly taking 2000 ms per request, instead of 200

UPDATE: finally remembered to look at munin, and it seems that one of the HDDs is the root of the problem after all, unless I'm totally reading this wrong. Here's the munin output: ...
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1answer
43 views

Innodb tables not showing

If I run query show table in mysql console, the innodb tables will be listed. But when I tried a query like select * from tablename, it says table does not exist. How can I fix this issue and make ...
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1answer
161 views

Re-ocurring issue with keys on temp tables

We run a large forum with lots of reads and writes, particularly to the posts and topics tables which are both innodb. Last week I started doing 12 hourly backups with innobackupex because mysqldump ...
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1answer
3k views

Is enabling MySQL query_cache_size Innodb Lock Safe?

The query_cache_size looks like the kind of setting that one would usually want enabled which puzzled me since it defaults to 0. Then I read the following about the query_cache_wlock_invalidate ...
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2answers
418 views

MySQL's InnoDb performance downfall

I'm trying to configure a MySQL production server using InnoDb and I can not get the performance I want out of it. I've used Percona tools to give me the following configurations: [mysql] # CLIENT # ...