Linked Questions

2
votes
3answers
2k views

What does “InnoDB stores its tables and indexes in a tablespace” mean? [duplicate]

Was reading the mysql engine innoDB tutorial, I came across this sentence "InnoDB stores its tables and indexes in a tablespace" Can any body explain me this what does it means. Thank you :)
19
votes
3answers
17k views

Is innodb_file_per_table advisable?

We have an application where just one of the table will be growing into million of lines but the rest will just below a million. So what is the advice should we go with innodb_file_per_table or leave ...
24
votes
2answers
48k views

How do I shrink the innodb file ibdata1 without dumping all databases?

InnoDB stores all tables in one big file ibdata1. After dropping a big table, the file is keeping its size no matter how big the table was. How can I shrink that file without having to dump and re-...
13
votes
2answers
67k views

How to Recover an InnoDB table whose files were moved around

So I have a test db server that was setup on a replication stream. Over the name an optimize came through that quickly filled up the space on the slaves datadir. Mysql dutifully was just waiting for ...
14
votes
1answer
36k views

What exactly are iblog files in mysql

I would like to understand these ibdata files as these play vital role in the crash recovery procedure. I could not find proper resources over the web for this.
4
votes
3answers
16k views

Will OPTIMIZE TABLE have any impact on my data?

I'm having issues with a database that is getting quite slow. The analyzer in phpMyAdmin recommends that I run OPTIMIZE TABLE on my tables. But before doing so, I would (of course) like to know if ...
4
votes
3answers
15k views

Is there a progress indicator for OPTIMIZE TABLE progress?

MySQL 5.1.4x (Windows) | Innodb I recently purged data from a mySQL DB (a few hundred thousand rows) and I'm planning to use OPTIMIZE TABLE LOGTABLEFOO1,LOGTABLEFOO2,LOGTABLEFOO3; to reduce the ...
5
votes
3answers
25k views

ERROR Cannot find or open table?

MySQL version: 5.5.24 Due to the following problem: mysql> desc reportingdb.v3_zone_date_cpm7k; ERROR 1146 (42S02): Table 'reportingdb.v3_zone_date_cpm7k' doesn't exist /var/log/mysqld....
11
votes
3answers
3k views

Where is the INNODB Performance Leak?

I have a weird problem which I cannot seem to fix. I'm more an web programmer than a Server/DB Admin, so I hope someone here can help me. The Situation I am working on a system which handles a lot ...
2
votes
1answer
17k views

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 ...
11
votes
1answer
8k views

Capabilities of InnoDB INSERT Performance

Hi I am running the most recent version of Percona Server. Server version: 5.5.24-55 Percona Server (GPL), Release 26.0 I have a 10 cpu box of these characteristics. processor : 0 vendor_id ...
4
votes
3answers
9k views

ibdata1 grows exponentially when innodb_file_per_table is configured

I Have installed a MySQL Cluster with InnoDB (innodb_file_per_table enabled subsequently), but since I switched to innodb_file_per_table, the file ibdata1 grows (2GB at month). Is My my.cnf file is ...
3
votes
2answers
13k views

Table compression in InnoDB?

I have read that table index compression happens just in MyISAM, but I came across an article in dev.mysql that said: InnoDB supports table and index compression! So now what is the pros of MyISAM? ...
5
votes
1answer
10k views

How To Optimize and Repair InnoDB tables? ALTER and OPTIMIZE table failed

I just switched my Wordpress databases to use the InnoDB engine. When using MyISAM, I used to run Optimize and Repair table. However, with InnoDB, these don't work. I manually ran OPTIMIZE TABLE ...
7
votes
1answer
5k views

How large will a MySQL database be relative to the dump file?

I'm restoring a ~52GB dump to a MySQL database. The ibdata1 file has already exceeded the size of the dump file and the restore is still incomplete. Is there any way to estimate the final size of the ...

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