• aelkin/elkin@koti.dsl.inet.fi's avatar
    Bug #29309 Incorrect "Seconds_Behind_Master" value in SHOW SLAVE STATUS after FLUSH LOGS · 501cce2b
    aelkin/elkin@koti.dsl.inet.fi authored
    Report claims that Seconds_behind_master behaves unexpectedly. 
    
    Code analysis shows that there is an evident flaw in that treating of FormatDescription event is wrong
    so  that after FLUSH LOGS on slave the Seconds_behind_master's calculation slips and incorrect
    value can be reported to SHOW SLAVE STATUS. 
    Even worse is that the gap between the correct and incorrect deltas grows with time.
    
    Fixed with prohibiting changes to rpl->last_master_timestamp by artifical events (any kind of).
    suggestion as comments is added how to fight with lack of info on the slave side by means of
    new heartbeat feature coming.
    
    The test can not be done ealily fully determistic.
    501cce2b
rpl_replication_delay-slave.opt 53 Bytes