Add command line option to check for errant transaction #110
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This errant transactions check is only performed if
--check_for_errant_transactionsis present onmasterha_master_switchcommand line, default behavior is unchanged.If errant transactions are found, switch-over is aborted during Phase 1 (Configuration Check Phase) and a fix is suggested using
mysqlslavetrx.This is to prevent switch-over to get stuck after the CHANGE MASTER statement with replication error 1236.