Portál AbcLinuxu, 14. května 2025 06:07
Řešení dotazu:
13.12.2010 18:15
poky74 | skóre: 36
| blog: Zápisník
| Vrchlabí
Nejsem si jistý, ale dotaz jako samostatnou transakci zpracovává jen myisam ne?
), asi kolem 2GB. Možná je chyba už přímo v konfiguraci. Mimochodem mohu se zeptat na příkazy těch transakcí (předpokládám, že to jsou příkazy begin (na začátku) a poté commít na konci, ovšem neznám celou syntaxi)). Děkuji.
# # The MySQL database server configuration file. # # You can copy this to one of: # - "/etc/mysql/my.cnf" to set global options,innodb_buffer_pool_size # - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports. # Run program with --help to get a list of available options and with # --print-defaults to see which it would actually understand and use. # # For explanations see # http://dev.mysql.com/doc/mysql/en/server-system-variables.html # This will be passed to all mysql clients # It has been reported that passwords should be enclosed with ticks/quotes # escpecially if they contain "#" chars... # Remember to edit /etc/mysql/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock # Here is entries for some specific programs # The following values assume you have at least 32M ram # This was formally known as [safe_mysqld]. Both versions are currently parsed. [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] # # * Basic Settings # character-set-server = utf8 default-character-set = utf8 default-collation = utf8_general_ci user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking skip-locking # skip-name-resolve default-storage-engine = INNODB # # Instead of skip-networking the default is now to listen only on # localhost which is more compatible and is not less secure. bind-address = 0.0.0.0 # # * Fine Tuning # net_buffer_length = 1024K key_buffer = 16M key_buffer_size = 128M max_allowed_packet = 2M thread_concurrency = 4 thread_stack = 64K thread_cache = 128M thread_cache_size = 512 innodb_buffer_pool_size = 1024M innodb_additional_mem_pool_size = 25M innodb_flush_method = O_DSYNC innodb_flush_log_at_trx_commit = 0 innodb_file_per_table = 1 innodb_table_locks = 0 innodb_thread_concurrency = 4 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP #max_connections = 100 max_connections = 150 max_user_connections = 200 #table_cache = 512 table_cache = 1500 # # * Query Cache Configuration # query_cache_limit = 1M #query_cache_size = 512M query_cache_size = 64M tmp_table_size = 256M join_buffer_size = 1M sort_buffer_size = 1M read_buffer_size = 1M read_rnd_buffer_size = 1M # # * Logging and Replication # # Both location gets rotated by the cronjob. # Be aware that this log type is a performance killer. # log = /var/log/mysql/mysql.log # # Error logging goes to syslog. This is a Debian improvement :) # # Here you can see queries with especially long duration #log_slow_queries = /var/log/mysql/mysql-slow.log long_query_time = 5 #log-queries-not-using-indexes # # The following can be used as easy to replay backup logs or for replication. # note: if you are setting up a replication slave, see README.Debian about # other settings you may need to change. #server-id = 1 #log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 7 max_binlog_size = 300M log-error = /var/log/mysqld/error.log log-slow-queries = /var/log/mysqld/slow.log #binlog_do_db = include_database_name #binlog_ignore_db = include_database_name # # * BerkeleyDB # # Using BerkeleyDB is now discouraged as its support will cease in 5.1.12. skip-bdb # # * InnoDB # # InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/. # Read the manual for more InnoDB related options. There are many! # You might want to disable InnoDB to shrink the mysqld process by circa 100MB. #skip-innodb # # * Security Features # # Read the manual, too, if you want chroot! # chroot = /var/lib/mysql/ # # For generating SSL certificates I recommend the OpenSSL GUI "tinyca". # # ssl-ca=/etc/mysql/cacert.pem # ssl-cert=/etc/mysql/server-cert.pem # ssl-key=/etc/mysql/server-key.pem [mysqldump] quick quote-names max_allowed_packet = 64M [mysql] #no-auto-rehash # faster start of mysql but no tab completition [isamchk] key_buffer = 128M # # * NDB Cluster # # See /usr/share/doc/mysql-server-*/README.Debian for more information. # # The following configuration is read by the NDB Data Nodes (ndbd processes) # not from the NDB Management Nodes (ndb_mgmd processes). # # [MYSQL_CLUSTER] # ndb-connectstring = 127.0.0.1 # # * IMPORTANT: Additional settings that can override those from this file! # The files must end with '.cnf', otherwise they'll be ignored. # !includedir /etc/mysql/conf.d/
12.12.2010 22:40
innodb_flush_method = O_DSYNC
na innodb_flush_method=O_DIRECT, což by mohlo zápis zrychlit.autocommit je 1, tak se každý vyvolaný dotaz provede ihned bez ohledu na to jestli jsou používány příkazy BEGIN/COMMIT atd..mysqldump nezálohuje „soubory databáze“, ale vyváří SQL dotaz, kterýmžto můžete data obnovit.
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