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Displaying posts with tag: Percona Toolkit 2.1.10 (reset)

Your troubles are over, pt-heartbeat 2.1
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Poor pt-heartbeat 2.1: it was perfectly fine through Percona Toolkit 2.1.7, but it’s had a rough life since. Its troubles are finally over as of Percona Toolkit 2.1.10. At a conference recently, a user joked to me that “Percona Toolkit is awesome, but you really broke pt-heartbeat.” It’s true, and if you haven’t heard or experienced the story, here it is for the record.

Since the dawn of time, pt-heartbeat had computed slave lag like:

t1=time (Perl) --> replicate --> t2=time (Perl); lag = t2 - t1

Surprisingly, that worked for many years despite

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