The article explains a real‑world MySQL replication failure caused by a 4 GB binlog, walks through the replication architecture, binlog write mechanics, diagnostic commands, mode differences, and shows how a large row‑based transaction with a BLOB field inflated the log, concluding with a practical fix.
This article analyzes MySQL data‑update loss caused by writes on master‑slave pairs, explains BEFORE and AFTER IMAGE handling in row‑based binlogs, examines the binlog_row_image and slave_rows_search_algorithms parameters, and details the implementation of hash, index, and table scans during slave replay.
The article investigates why a DELETE without a WHERE clause on a 500k‑row MySQL table takes over ten hours to replay on a slave, analyzes row‑mode binlog replay mechanisms, compares different slave_rows_search_algorithms, presents test results, and offers practical recommendations for improving replication performance.
