RHELMariaDB
bitsCN.comInstallation MariaDB5.5 on RHEL6
yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel ssse2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers gettext-devel libXpm-devel libtool perl-DBD-MySQL bison cmake [root@test mariadb-5.5.33a]# mkdir -p /data/mariadb5.5 /service/mariadb5.5 [root@test mariadb-5.5.33a]# cmake . -DCMAKE_INSTALL_PREFIX=/service/mariadb5.5 -DMYSQL_UNIX_ADDR=/data/mariadb5.5/mariadb.sock -DMYSQL_DATADIR=/data/mariadb5.5 -DSYSCONFDIR=/service/mariadb5.5 -DMYSQL_USER=mysql -DMYSQL_TCP_PORT=30308 -DWITH_XTRADB_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DENABLED_LOCAL_INFILE=1 -DWITH_EXTRA_CHARSETS=1 -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DEXTRA_CHARSETS=all -DWITH_BIG_TABLES=1 -DWITH_DEBUG=0 -DCOMPILATION_COMMENT=ZWC-MariaDB [root@test mariadb-5.5.33a]# make && make install [root@test ~]# cat /service/mariadb5.5/my.cnf [client] port = 30308 socket = /data/mariadb5.5/mariadb.sock
[mysqld] port = 30308 socket = /data/mariadb5.5/mariadb.sock skip-external-locking back_log = 500 lower_case_table_names = 1 skip-name-resolve max_connections = 1024 table_open_cache = 512 binlog_cache_size = 1M max_heap_table_size = 300M read_buffer_size = 10M read_rnd_buffer_size = 16M sort_buffer_size = 8M join_buffer_size=4M thread_cache_size = 4 thread_concurrency = 4 query_cache_size = 200M ft_min_word_len = 4 thread_stack = 192K tmp_table_size = 200M slow_query_log long_query_time = 2 slow_query_log_file = /data/mariadb5.5/slowsql.sql key_buffer_size = 32M bulk_insert_buffer_size = 64M myisam_sort_buffer_size = 128M myisam_max_sort_file_size = 200M myisam_repair_threads = 4 myisam_recover # setup innodb innodb_additional_mem_pool_size = 16M innodb_buffer_pool_size = 2500M innodb_data_file_path = ibdata1:10M:autoextend innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 16 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 8M innodb_log_file_size = 512M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 init_connect = 'SET autocommit=0' innodb-file-per-table = 1 innodb-open-file = 500 innodb_flush_method=O_DIRECT open_files_limit = 65535 expire_logs_days = 5 event_scheduler = 1 log-bin=binlog-master binlog_format=mixed server-id = 1 [mysqldump] quick max_allowed_packet = 16M [mysql] prompt=//u@//d //r://m://s> no-auto-rehash [myisamchk] key_buffer_size = 128M sort_buffer_size = 128M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout [root@test ~]# /service/mariadb5.5/scripts/mysql_install_db --defaults-file=/service/mariadb5.5/my.cnf --basedir=/service/mariadb5.5 --datadir=/data/mariadb5.5 --user=mysql Installing MariaDB/MySQL system tables in '/data/mariadb5.5' ... OK Filling help tables... OK To start mysqld at boot time you have to copy support-files/mysql.server to the right place for your system PLEASE REMEMBER TO SET A PASSWORD FOR THE MariaDB root USER ! To do so, start the server, then issue the following commands: '/service/mariadb5.5/bin/mysqladmin' -u root password 'new-password' '/service/mariadb5.5/bin/mysqladmin' -u root -h 192.168.1.9 password 'new-password' Alternatively you can run: '/service/mariadb5.5/bin/mysql_secure_installation' which will also give you the option of removing the test databases and anonymous user created by default. This is strongly recommended for production servers. See the MariaDB Knowledgebase at http://kb.askmonty.org or the MySQL manual for more instructions. You can start the MariaDB daemon with: cd '/service/mariadb5.5' ; /service/mariadb5.5/bin/mysqld_safe --datadir='/data/mariadb5.5' You can test the MariaDB daemon with mysql-test-run.pl cd '/service/mariadb5.5/mysql-test' ; perl mysql-test-run.pl Please report any problems with the '/service/mariadb5.5/scripts/mysqlbug' script! The latest information about MariaDB is available at http://mariadb.org/. You can find additional information about the MySQL part at: http://dev.mysql.com Support MariaDB development by buying support/new features from Monty Program Ab. You can contact us about this at sales@montyprogram.com. Alternatively consider joining our community based development effort: http://kb.askmonty.org/en/contributing-to-the-mariadb-project/ [root@test ~]# /service/mariadb5.5/bin/mysqld_safe --defaults-file=/service/mariadb5.5/my.cnf --basedir=/service/mariadb5.5 --datadir=/data/mariadb5.5 --user=mysql & [1] 19871 [root@test ~]# 131101 22:58:50 mysqld_safe Logging to '/data/mariadb5.5/test.err'. 131101 22:58:50 mysqld_safe Starting mysqld daemon with databases from /data/mariadb5.5 [root@test ~]# /service/mariadb5.5/bin/mysqladmin -uroot password New password: Confirm new password: [root@test ~]# [root@test ~]# [root@test ~]# /service/mariadb5.5/bin/mysql -uroot -p Enter password: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) [root@test ~]# /service/mariadb5.5/bin/mysql -uroot -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or /g. Your MariaDB connection id is 5 Server version: 5.5.33a-MariaDB-log ZWC-MariaDB Copyright (c) 2000, 2013, Oracle, Monty Program Ab and others. Type 'help;' or '/h' for help. Type '/c' to clear the current input statement. MariaDB [(none)]> delete from mysql.user where password=''; Query OK, 5 rows affected (0.03 sec) MariaDB [(none)]> delete from mysql.db where user=''; Query OK, 2 rows affected (0.04 sec) MariaDB [(none)]> select @@version; +---------------------+ | @@version | +---------------------+ | 5.5.33a-MariaDB-log | +---------------------+ 1 row in set (0.00 sec) MariaDB [(none)]> show engines; +--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+ | Engine | Support | Comment | Transactions | XA | Savepoints | +--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+ | MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO | | InnoDB | DEFAULT | Percona-XtraDB, Supports transactions, row-level locking, and foreign keys | YES | YES | YES | | CSV | YES | CSV storage engine | NO | NO | NO | | BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO | | MyISAM | YES | MyISAM storage engine | NO | NO | NO | | PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO | | MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO | | Aria | YES | Crash-safe tables with MyISAM heritage | NO | NO | NO | +--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+ 8 rows in set (0.00 sec) MariaDB [(none)]>
Percona-XtraDB, Supports transactions, row-level locking, and foreign keys
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todropaviewInmySQL,使用“ dropviewifexistsview_name;” andTomodifyAview,使用“ createOrreplaceViewViewViewview_nameAsSelect ...”。whendroppingaview,asew dectivectenciesanduse和showcreateateviewViewview_name;“ tounderStanditSsstructure.whenModifying

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1)foralocaluser:createUser'localuser'@'@'localhost'Indidendify'securepassword'; 2)foraremoteuser:creationuser's creationuser'Remoteer'Remoteer'Remoteer'Remoteer'Remoteer'Remoteer'Remoteer'Remoteer'Rocaluser'@'localhost'Indidendify'seceledify'Securepassword'; 2)

mysqlviewshavelimitations:1)他们不使用Supportallsqloperations,限制DatamanipulationThroughViewSwithJoinSorsubqueries.2)他们canimpactperformance,尤其是withcomplexcomplexclexeriesorlargedatasets.3)

porthusermanagementInmysqliscialforenhancingsEcurityAndsingsmenting效率databaseoperation.1)usecReateusertoAddusers,指定connectionsourcewith@'localhost'or@'%'。

mysqldoes notimposeahardlimitontriggers,butacticalfactorsdeterminetheireffactective:1)serverConfiguration impactactStriggerGermanagement; 2)复杂的TriggerSincreaseSySystemsystem load; 3)largertablesslowtriggerperfermance; 4)highConconcConcrencerCancancancancanceTigrignecentign; 5); 5)


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