Optimize InnoDB database
I have a simple database table with 170MB overhead.
Is this something I need to worry about? When I run optimize on it, it tells me that innodb doesn't support optimize and so recreates the table but still has 170MB overhead.
Is this something I can comfortably ignore?
I have a write intensive application running on EC2. Any thoughts on how to optimize it to be able to make several thousands concurrent writes on the MySQL DB?
We have a database full of MyISAM tables. The thing is that we need transactions on just 1 table, called payments My question is, will that work? I mean by changing the engine of that table to InnoDB
I've been working on a food recipe database for a while now and i have accumulated a few questions about my design. This is my first project so if you see something strange, please point it out. Here'
I'm really new to MySQL and just started to use the InnoDB table engine on my VPS. Server info: 4 x 2.4 ghz, 8 Gb ram, 120gb Raid10. My.cfg: [mysqld] innodb_file_per_table=1 innodb_buffer_pool_size=
Is there any possible way to optimize query similiar to that: select col_1, col_2 from foo where bar like '%sth%'? Unfortunately I need to use both wildcards - at the beginning and in the end. Can I t
Possible Duplicate: MyISAM versus InnoDB what is the difference between innodb and myisam ? i see both of them as a type of engine in my mysql database.
Is the following compare and swap MySQL statement always atomic regardless of whether the database is InnoDB or MyISAM? UPDATE tbl_name SET locked=1 WHERE id=ID AND locked <> 1; I ask this be
In my MySQL installation I have one InnoDB database that I know will grow very large so I have decided to move it to its own disk. I was hoping to do this by moving the files to the other disk and the
I have updated several MySQL tables to InnoDb. After doing so, MySQL has become sluggish and the hard drive I have the database on is constantly writing, even though my changes have been completed. Pe
I am developing a web app for which I plan to use InnoDB. However I read that sometimes InnoDB is not enabled by default and, one needs to change mysql config to enable it... Is that true? Since my we
I would like to know if it's possible in InnoDB in MySQL to have a table with foreign key that references another table in a different database? And if so, how this can be done ?
I want to optimize this query (since subqueries aren't fast in general), but I'm lost because I cannot rewrite this using joins which will be better for performance, can you help mi with this? SELECT
MY Query: SHOW STATUS like '%innodb%'; MY data: Innodb_buffer_pool_pages_data,411 Innodb_buffer_pool_pages_dirty,0 Innodb_buffer_pool_pages_flushed,0 Innodb_buffer_pool_pages_free,65125 Innodb_buffer_
I want to use foreign key in MySQL. For that I needed to enable InnoDB feature. I have tried downloading latest version of MySQL Server from its official site. I went through similar questions on stac
I've been getting a Deadlock found when trying to get lock; try restarting transaction error on my InnoDB tables. Here is the query: UPDATE views SET visit_cnt = visit_cnt + 1 WHERE visit_day = DATE(N
The typical documentation on locking in innodb is way too confusing. I think it will be of great value to have a dummies guide to innodb locking I will start, and I will gather all responses as a wi
Anybody use NoSQL / InnoDB with Memcached? How stable is it? I have set it up yesterday and going to test today, but maybe you can share some knowledge also?
I've got a percona mysql 5.6.13 database with tables like this: CREATE TABLE `table1` ( `table1_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `created_at` datetime NOT NULL, PRIMARY KEY (`table1_id`),
Mysql autoincrmenting is not sequential. when i was trying to upload csv bulk data it's skipping some of the auto increment id The auto increment id is not sequential The db engine is innodb & i
When i run 'Select * from table' on an INNODB table, does the table get locked implicity? Does it mean that during the time MySQL takes to return the result set, i cannot issue an update statement on
since fews days Mysql server on Windows does not success on closing itself. In the mysql error log I find multiple instance of these lines: InnoDB: Operating system error number 32 in a file operatio
If innodb detects a 3 way deadlock, would it report on all the involved transactions in the LAST DEADLOCK DETECTED section of show engine innodb status ? Also when innodb reports a deadlock, why d
Possible Duplicate: Should I always prefer MySQL InnoDB over MyISAM? Under what conditions should InnoDB be used over MyISAM ? I've seen some MySQL optimization tests where MyISAM proves to be faste
Days of searching but still no solution. My situation I am using this command to dump a 16+Gb (growing) database (all but 2 tables are InnoDB) The dump is run via cron once a day and sits in a small p
How can I determine type of mysql database : whether it is InnoDB or MyISAM ? How can I convert MyISAM to InnoDB or vice-versa ?
I have a database with over 10,000,000 rows. Querying it right now can take a few seconds just to find some basic information. This isn't preferable, I know that the best way to optimize is to minimiz
I have a client-server application with 2 clients: I need to make the reading of the database efficient when more than 1 client is reading it, without all clients getting the same rows. I use InnoDB e
So I have been asked to change the engine of a few tables in a production database from MyISAM to InnoDB. I am trying to figure out how that will affect usage in production (as the server can afford n
I have been doing reading that using a LONGBLOG with INNODB will have huge performance implications. Is this true? (I will be storing images)
I've always been using MyISAM tables in my Wordpress blog, however, recently I moved from standard MySQL to Percona Server and started using the InnoDB for tables. Every time I run optimize I can see
I am maintaining a pretty sizable application and database and am noticing some poor database performance in a few of our stored procedures. I always hear that adding an index can be done to help pe
When I issue the SHOW GLOBAL STATUS; MySQL command, one of the lines I get is the following: Innodb_buffer_pool_pages_dirty 28 When I look up the documentation, all I see is: The number of pages cur
i am trying to optimize performance for my database. My question is - what get cached in the db memory? For example: (table with 2 columns: key (indexed), data (not indexed) updated (not indexed) Sele
i'm Developing a large Website, and adding many functionalities on it. I want to know if there's any problem with making all the tables in the database InnoDB type, cuz there are so many foreign key c
Im currently working with Zend framework. I'm trying to write a query in MYSQL INNODB database format to return all the provider which match with all the quote criteria values. Here is a database desi
Is it possable to optimize this query? SELECT count(locId) AS antal , locId FROM `geolitecity_block` WHERE (1835880985>= startIpNum AND 1835880985 <= endIpNum) OR (1836875969>= startIpNum AND
Possible Duplicate: how to fast copy a large innodb table I want to make a copy of my Innodb table within the same Database. Table contains around 4Million records. I want the new copy of table for
I'm having some trouble understanding InnoDB usage - we have a drupal based DB (5:1 read:write) running on mysql (Server version: 5.1.41-3ubuntu12.10-log (Ubuntu)). Our current Innodb data/index sizin
I want have a single database that uses InnoDB tables instead of myISAM tables (myISAM gives me good performance generally so I don't want to stop using it altogether). Is it possible to specify that
Following my former question : cypher 2.0 : using label based index to search a set of nodes I am trying to optimize a query to find users common groups: MATCH (gr:Group) <--(us:User)-->(gr2:Gro
Can some one optimize this mysql query SELECT submittedform.*, inspectors.first_name, inspectors.last_name FROM ( SELECT `dinsp`,`departure`,`arrival`,'cabin' as type FROM cabinets UNION SELECT `dins
I am starting to experiment with using InnoDB in web applications. I've setup some tables with a foreign key, but they are not behaving as expected. Here are my table CREATE statements: CREATE TABLE s
Why is myisam storage engine is faster than Innodb storage engine what makes it to be faster and innodb to be slow?
i use this query for fetching data from database how can i optimize and use best code for this connection? connect(); $games_sql = mysql_query(SELECT gameid,mizbanid,mihmanid,score1,score2,gamedavar
I've decided for the first time to switch to InnoDB and experiment with foreign keys and other InnoDB features. When creating relationships, should I declare them only on 1 table? Or both tables? For
I'm trying to get an after insert trigger to NOT roll back an insert done to an innodb table. MyISAM does not seem to have this problem. Let me illustrate: CREATE TABLE `testTable` ( `id` int(10) AUTO
Thanks in advance. while installing the magento on server i got the following error Database server does not support the InnoDB storage engine. How i overcome this? Database connection error. Does a
I used mysqldump to export my database and then I imported it into MySQL on my other server. I can now see all my tables if I do show tables but I can't actually select from or describe any of them.
I'm trying to speed up my site and found this site:http://www.computingunleashed.com/speed-up-wordpress-ultimate-guide-to-make-sites-super-fast.html, which gave the following recommendation: Just like
I have a little issue with a mysql table with innoDB engine (from an inventory system). The table has several million records and I want to programm a little reporting tool which is using this table.