Increased Number of Error 2003 on Replication Replicas After Upgrade to MySQL 5.7+ or Reducing replica_net_timeout: "[ERROR] Replica I/O for channel '': error reconnecting to source '...' - retry-time: 60 retries: 3, Error_code: 2003"
(Doc ID 2329395.1)
Last updated on JANUARY 11, 2022
Applies to:MySQL Server - Version 5.7 and later
Information in this document applies to any platform.
After upgrading to MySQL 5.7 or reducing the replica_net_timeout option, the replication replica starts to report errors like:
MySQL was upgraded to version 5.7 or later or replica_net_timeout was reduced.
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