You can recover MySQL 5.7 root Password with following 9 easy steps. These commands will work in Redhat/CentOS 7 Step-1: Stop MySQL server systemctl stop mysqld Step-2: Set the mySQL environment option systemctl set-environment MYSQLD_OPTS=”–skip-grant-tables” Step-3: Start mysql usig the options you just set systemctl start mysqld Step-4:Login as root mysql -u
This article is written for those who have already read article “MySQL Replication skip error” . In that article I explained how to find out replication error and how to solve it step by step. Sometimes , the steps need to be executed several times until there is no error found at heading “Last_SQL_Error:”. Here I
phpMyAdmin is a great tool to manage MySQL and MariaDB database. Every cPanel allows phpMyAdmin interface to manage the hosting database. It is often required to create a database first and then create a user who have full permission on that database only. Here I show step by step how to create database and user in
MySQL Replication skip error There are two ways you can configure MySQL replication : normal and GTID based replication. From MySQL 5.6 GTID based replication is started. However, you can again explore how to setup MySQL Replication on the the following links replication-howto replication-gtids-howto Sometimes, replication on Slave server is stopped for many a reasons
Remove Duplicate Rows in MySQL Remove duplicate rows in MySQL is a common query for many initial MySQL user. I have been working on MySQL for more than six years and in my initial starting I had to search over the internet for this easy thing. Though there are a lot of articles on the
Optimize MySQL innodb_buffer_pool_size InnoDB buffer pool is the size in bytes of the buffer pool, the memory area where InnoDB caches table and index data. The larger you set this value, the less disk I/O is needed to access the same data in tables more than once. On a dedicated database server, you might set
Optimize MySQL tmp_table_size MySQL tmp_table_size is the maximum size of internal in-memory temporary tables. (The actual limit is determined as the minimum of tmp_table_size and max_heap_table_size.) If an in-memory temporary table exceeds the limit, MySQL automatically converts it to an on-disk MyISAM table. The on-disk table is expensive and affects your database performance. The temporary table may
Change MySQL Data Directory In Redhat/CentOS/Fedora MySQL default data directory remains in /var/lib/mysql. Sometimes you need to change MySQL data directory to a new location for many reasons. To change MySQL data directory is an easy task. Here I am showing step by step procedure to change MySQL data directory from its default location /var/lib/mysql
Optimize MySQL table_open_cache The number of open tables for all threads. Increasing this value increases the number of file descriptors that mysqld requires. You can check whether you need to increase the table cache by checking the Opened_tables status variable. If the value of Opened_tables is large and you do not use FLUSH TABLES often
Optimize MySQL query_cache_size The MySQL query_cache_size is an in memory caches that stores the complete result sets of frequent SELECT queries. Instead of issuing the query again to the database engine, MySQL retrieves the result set from the cache and returns that to the client. The bigger query_cache_size can cache more result set. Query has