Aikesheng Open Source Community
Oct 17, 2019 · Databases
Understanding MySQL Slave Net Timeout, Master Heartbeat Period, and Their Impact on Relay Log Accumulation
The article analyzes a MySQL replication issue where a low slave_net_timeout combined with a larger MASTER_HEARTBEAT_PERIOD causes frequent zombie dump threads, leading to massive small relay‑log files, and provides detailed explanations, code references, and step‑by‑step remediation procedures.
Relay LogTroubleshootingdatabases
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