update

install/mariadb.md

@@ -0,0 +1,106 @@
+List of repositories https://downloads.mariadb.org/mariadb/repositories/
+
+```
+apt-get install software-properties-common dirmngr
+apt-key adv --fetch-keys 'https://mariadb.org/mariadb_release_signing_key.asc'
+add-apt-repository 'deb [arch=amd64] http://mirror.rackspace.com/mariadb/repo/10.4/debian buster main'
+
+apt-get update
+apt-get install mariadb-server
+mysql_secure_installation
+mysql -uroot -p
+```
+
+MariaDB config
+```
+# nano /etc/mysql/my.cnf
+
+[client]
+port = 3306
+socket = /var/run/mysqld/mysqld.sock
+default-character-set = utf8mb4
+
+[mysqld_safe]
+socket = /var/run/mysqld/mysqld.sock
+nice = 0
+malloc-lib = /usr/lib/x86_64-linux-gnu/libjemalloc.so.1
+
+[mysqld]
+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
+skip-networking
+skip-name-resolve
+
+# Other
+default-storage-engine = INNODB
+character-set-server = utf8mb4
+max_connections = 100
+wait_timeout = 7200
+max_allowed_packet = 16M
+skip-external-locking
+open_files_limit = 16000
+
+# MyISAM settings
+key_buffer_size = 128M
+
+# InnoDB settings
+innodb_buffer_pool_size = 32G
+innodb_buffer_pool_instances = 32
+innodb_log_file_size = 1G
+innodb_flush_log_at_trx_commit = 0
+innodb_log_buffer_size = 16M
+innodb_log_files_in_group = 2
+innodb_flush_method = O_DIRECT
+innodb_thread_concurrency = 16
+
+# Buffer settings
+join_buffer_size = 2M
+
+# TMP & memory settings
+tmp_table_size = 32M
+max_heap_table_size = 32M
+
+# Try off https://community.centminmod.com/threads/mysqltuner.6779/
+query_cache_type = 0 # for OFF
+query_cache_size = 0 # to ensure QC is NOT USED
+
+# Slowlog settings
+slow_query_log = 1
+long_query_time = 5
+slow_query_log_file = /var/log/mysql/mariadb-slow.log
+
+#Set General Log
+#general_log = on
+#general_log_file = /var/log/mysql/full.log
+
+[mysqldump]
+# Do not buffer the whole result set in memory before writing it to
+# file. Required for dumping very large tables
+quick
+
+max_allowed_packet = 32M
+default-character-set = utf8mb4
+
+[mysql]
+no-auto-rehash
+default-character-set = utf8mb4
+
+[isamchk]
+key_buffer_size = 8M
+sort_buffer_size = 8M
+read_buffer = 8M
+write_buffer = 8M
+default-character-set = utf8mb4
+
+#
+# * IMPORTANT: Additional settings that can override those from this file!
+#   The files must end with '.cnf', otherwise they'll be ignored.
+#
+!include /etc/mysql/mariadb.cnf
+!includedir /etc/mysql/conf.d/
+```