11 articles
RSSHow to fix MySQL replication issues — SHOW REPLICA STATUS errors, relay log corruption, GTID configuration, replication lag, skipping errors, and replica promotion.
How to fix MySQL full-text search issues — FULLTEXT index creation, minimum word length, stopwords, boolean mode vs natural language mode, InnoDB vs MyISAM, and LIKE fallback.
How to fix MySQL indexes not being used by the query optimizer — EXPLAIN output, implicit conversions, function on columns, composite index order, cardinality issues, and forcing indexes.
How to diagnose and fix slow MySQL queries — enabling the slow query log, reading EXPLAIN output, adding indexes, fixing N+1 queries, and optimizing JOINs and ORDER BY.
How to fix MySQL 'Deadlock found when trying to get lock; try restarting transaction' — diagnosing deadlock causes, using SHOW ENGINE INNODB STATUS, and preventing deadlocks with consistent lock ordering.
How to fix MySQL syntax error 1064 caused by typos, reserved words, wrong quotes, missing commas, version-incompatible syntax, and ORM-generated queries.
How to fix MySQL ERROR 1205 Lock wait timeout exceeded caused by long-running transactions, row-level locks, missing indexes, deadlocks, and InnoDB lock contention.
How to fix MySQL error 1146 Table doesn't exist caused by wrong database selection, case sensitivity issues, missing migrations, InnoDB tablespace corruption, and cross-OS imports.
How to fix the MySQL error 1040 'Too many connections' by adjusting max_connections, fixing connection leaks, and optimizing connection pooling.
How to fix MySQL ERROR 2002 (HY000) when the MySQL client can't connect through the Unix socket file on Linux, macOS, Docker, and WSL.
How to fix MySQL 'ERROR 1045 (28000): Access denied for user root@localhost (using password: YES/NO)' on Linux, macOS, Windows, and Docker. Covers password reset, auth plugin issues, skip-grant-tables recovery, MySQL 8 vs 5.7 differences, and host mismatches.