Hi all,

I have change the data directory from /var/lib/mysql to /data/mysql
directory and adding innodb_file_per_table. By doing this innodb storage
engine get dissabled. my.cnf doesn't contains "#skip-innodb". Is it's adding
will enable or not

HOW CAN I ENABLE INNODB

mysql> show engines;
+------------+----------+----------------------------------------------------------------+
| Engine | Support |
Comment |
+------------+----------+----------------------------------------------------------------+
| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great
performance |
| MEMORY | YES | Hash based, stored in memory, useful for temporary
tables |
| InnoDB | DISABLED | Supports transactions, row-level locking, and
foreign keys |
| BerkeleyDB | NO | Supports transactions and page-level
locking |
| BLACKHOLE | NO | /dev/null storage engine (anything you write to it
disappears) |
| EXAMPLE | NO | Example storage
engine |
| ARCHIVE | YES | Archive storage
engine |
| CSV | YES | CSV storage
engine |
| ndbcluster | DISABLED | Clustered, fault-tolerant, memory-based
tables |
| FEDERATED | YES | Federated MySQL storage
engine |
| MRG_MYISAM | YES | Collection of identical MyISAM
tables |
| ISAM | NO | Obsolete storage
engine |
+------------+----------+----------------------------------------------------------------+
12 rows in set (0.00 sec)


# /etc/mysql/my.cnf: The global mysql configuration file.
# $Header: /var/cvsroot/gentoo-x86/dev-db/mysql/files/my.cnf-4.1-r1,v 1.3
2006/02/01 20:25:56 vivo Exp $
#
# $Revision:$
# $Id:$

# The following options will be passed to all MySQL clients
[client]
#password =
port = 3306
socket =
/var/run/mysqld/mysqld.sock

[mysql]
character-sets-dir=utf8
default-character-set=utf8

[mysqladmin]
character-sets-dir=utf8
default-character-set=utf8

[mysqlcheck]
character-sets-dir=utf8
default-character-set=utf8

[mysqldump]
character-sets-dir=utf8
default-character-set=utf8

[mysqlimport]
character-sets-dir=utf8
default-character-set=utf8

[mysqlshow]
character-sets-dir=utf8
default-character-set=utf8

[myisamchk]
character-sets-dir=utf8
default-character-set=utf8

[myisampack]
character-sets-dir=utf8


# use [safe_mysqld] with mysql-3
[mysqld_safe]
err-log = /var/log/mysql/mysql.err

# add a section [mysqld-4.1] or [mysqld-5.0] for specific configurations.
[mysqld]
old_passwords = false # inserted by debconf
character-set-server = utf8
default-character-set = utf8
user = mysql
port = 3306
socket = /var/run/mysqld/mysqld.sock
pid-file = /var/run/mysqld/mysqld.pid
log-error = /var/log/mysql/mysqld.err
basedir = /usr
#datadir = /var/lib/mysql
skip-locking
#set default_storage_engine=InnoDB
key_buffer = 384M
max_allowed_packet = 16M
table_cache = 1024

sort_buffer_size = 9M

net_buffer_length = 8K
read_buffer_size = 2M
read_rnd_buffer_size = 32M
myisam_sort_buffer_size = 64M

query_cache_type = 1
query_cache_size = 100M

language = /usr/share/mysql/english

set-variable = max_connections=1024

# Begin replication section
log-bin=/var/db/db05-master-bin.log
server-id=5

# End replication section

#security:
#using "localhost" in connects use sockets by default
#skip-networking
#bind-address = 127.0.0.1

# Point the following paths to different dedicated disks
tmpdir = /tmp/
#log-update = /path-to-dedicated-directory/hostname

# you need debug use flag enabled to use this ones.
# if needed uncomment them, start the server and issue
# #tail -f /tmp/mysqld.sql /tmp/mysqld.trace
# this will show you *exactly* what's appening in your server

#log = /tmp/mysqld.sql
#gdb
#debug = d:t:i,/tmp/mysqld.trace
#one-thread

# Uncomment the following if you are using BDB tables
#bdb_cache_size = 4M
#bdb_max_lock = 10000

# The following is the InnoDB configuration
#
# the rest of the innodb config follows:
# don't eat too much memory, we're trying to be safe on 64Mb boxes.
# you might want to bump this up a bit on boxes with more RAM
innodb_buffer_pool_size = 1G
# this is the default, increase if you have lots of tables
innodb_additional_mem_pool_size = 128M
#
# i'd like to use /var/lib/mysql/innodb, but that is seen as a database :-(
# and upstream wants things to be under /var/lib/mysql/, so that's the route
# we have to take for the moment
#innodb_data_home_dir = /var/lib/mysql/
innodb_data_home_dir = /data/mysql/
innodb_log_arch_dir = /data/mysql/
innodb_log_group_home_dir = /data/mysql/

datadir = /data/mysql/
#innodb_file_per_table

# you may wish to change this size to be more suitable for your system
# the max is there to avoid run-away growth on your machine
innodb_data_file_path = ibdata1:10M:autoextend
# we keep this at around 25% of of innodb_buffer_pool_size
# sensible values range from 1MB to
(1/innodb_log_files_in_group*innodb_buffer_pool_size)
innodb_log_file_size = 256M
# this is the default, increase if you have very large transactions.
innodb_log_buffer_size = 256M
# this is the default, and won't hurt you.
# you shouldn't need to tweak it.
set-variable = innodb_log_files_in_group=2
# see the innodb config docs, the other options are not always safe
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50


[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[isamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[myisamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

#vim: set tabstop=4 :
#vim: set shiftwidth=4 :


Krishna Chandra Prajapati