In the MARIADB 10.1 release, in the Information_schema.processlist table, several fields were added, one memory_used, which records the memory consumption of the connection.At the same time, a new state variable memory_used is recorded, which should be the memory consumed by all connections combined (the official does not explain https://mariadb.com/kb/en/mariadb/show-processlist/in particular), Should rese
Source Code Compilation Installation mariadb-5.5.48MARIADB IntroductionMARIADB database management System is a branch of MySQL, mainly by the open source community in the maintenance, the use of GPL license. One of the reasons for developing this branch is that after Oracle acquired MySQL, there is a potential risk of shutting MySQL out of the source, so the community uses a branching approach to avoid this risk.
in Mdl_request::set_typeRevision #09cb646 2016-08-11 19:35:53 +0000Windows:fix Search for WiX root directory when using 64bit CMakeRevision #737964d 2016-08-10 11:24:18-0400Bump the VERSIONRelease Notes:https://mariadb.com/kb/en/mariadb/mariadb-5552-release-notes/:https://downloads.mariadb.org/mariadb/5.5.52/MARIADB d
Tags: mariadb and mysql co-mariadb run concurrently with MySQL[[email protected] ~]#groupadd mariadb - g Wuyi3[email protected] ~]#useradd-u3 - g mariadb -s/sbin/nologin-d/home/mariadb mariadbDownload the binary installation package to the/root directory from
So I decided to migrate all my servers from MySQL to MariaDB.
It is easy for Arch users to follow the official news:
systemctlstopmysqld
pacman-Smariadblibmariadbclientmariadb-clients
systemctlstartmysqld
mysql_upgrade-p
OpenSUSE is even dumb. After all, it is the default: zypper in mariadb is enough.
Debian/Ubuntu users are a little more complicated, but the entire process is still smooth:
Fir
compression;Log backupLog backup is difficult to understand, mariadb design time to consider the complete data, must ensure the success of data writing, then design a set of logging:Access logSlow access log, long-time access to commandsA binary log that records commands that cause changes to the database.Relay log, database master-SlaveSo why back up the log, because after we back up the data, the database changes so how to guarantee the complete da
Since 2012 years, Wikipedia has started migrating from MySQL to Mariadb, a major milestone in the evolution of the Wikimedia database architecture, porting the English and German versions of the Wikipedia database Wikidata to MARIADB 5.5.Over the past few years, Wikipedia has been using the MySQL 5.1 derivative version of Facebook as our product database, and the build version number is r3753. We are deligh
use SQL _log_bin = 0 on a Galera Cluster node, all other nodes will ignore the delete operation, in this way, nodes are inconsistent.
Therefore, if you use an asynchronous slave machine as the archiving server of the Galera Cluster, this feature is really necessary.
As shown in, you can add a MariaDB Galera Cluster node to Percona XtraDB Cluster to delete historical data with pt-archiver:
Pt-archiveris is
storage functions;
-- Triggers: Backup trigger
-- Master-data [= #]:
1: records the change master to statement. This statement is not commented out;
2: The record is a comment statement;
Note: MariadbSerious dependence on data recovery and bin-logLog, so to prevent data files and bin-log caused by disk failureThe file is lost together, so it is best to set the bin-logLogs are stored in shared storage.
Setting Method: Modify the Mariadb configurati
Finally, I completed the login method when MariaDB and MySQL coexist. At that time, I knew that the installation was successful, that is, I could not log on to MariaDB. I would like to share my experiences with you.
Finally, I completed the login method when MariaDB and MySQL coexist. At that time, I knew that the installation was successful, that is, I could not
Tags: michael blankMySQL that's quite a popular relational database has one, with the future of MySQL after the acquisition of the open source of Oracle is uncertain, gooogle, not to die, and so on to the MySQL open source community to maintain another open source MySQL branch mariadb up, Maria is the name of the second daughter of the MySQL founder Michael Widenius, MARIADB fully compatible with MySQL, usi
Method for separate login when MariaDB and MySQL coexist
Finally, I completed the login method when MariaDB and MySQL coexist. At that time, I knew that the installation was successful, that is, I could not log on to MariaDB. I would like to share my experiences with you.
Port Number logon method:
1. In CentOS7 Environment
1. Install Mysql5.6.19. After the instal
Correct command for installing mariadb on centos7
The centos7 System of linode is used, and mariadb is used by default when mysql is installed.
However, no matter whether you use the linode official website instructions or the basic installation method found by Baidu, the installation fails.
Always prompt this sentence:
ERROR2002 (HY000): Can 'tconnecttolocalmysqlserverthroughsocket '/var/lib/mysql. sock' (
Configure mariadb slow query log Be sure to configure the full path (including file name) Otherwise you cannot restart mariadb (/usr/local/mysql/data/slow.log) The file path for the configuration mariadb Log audit can be without a filename, but this is not possible.
10:22:29 system Mariadb-prepare-db-dir:database
Tags: show input data unsigned mat precision sam Oracle min formI. Introduction to MARIADB (MySQL profile skipped) MARIADB database management System is a branch of MySQL, mainly by the open source community in the maintenance, the use of GPL licensing MARIADB is fully compatible with MySQL, including the API and command line, so that it can easily become a subst
First, the use of methods
1, separate MySQL modeDocker run-d \-E Timezone=asia/shanghai \-V/DATA/MARIADB-MASTER:/DATA/MARIADB \-E mysql_root_password=lookback \-P 3,306:3,306 \mariadb:10.0.212, Mariadb MASTERDocker run-d \-E Timezone=asia/shanghai \-V/DATA/MARIADB-MASTER:/D
The server/client installation package for MySQL is available in CentOS 6 or earlier versions, but CentOS 7 has used MariaDB instead of the default MySQL. MARIADB database management System is a branch of MySQL, mainly by the open source community in the maintenance, the use of GPL licensing MARIADB is fully compatible with MySQL, including the API and command li
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