'GTID' Tag

  • Three wishes for a new year

    September 28, 2016

    (Almost) another new year by Jewish calendar. What do I wish for the following year? World peace Good health to all Relaxed GTID constraints I'm still not using GTID, and still see operational issues with working with GTID. As a latest example, our new schema migration solution, gh-ost, allows us to test migrations in production, […]

  • Refactoring replication topology with Pseudo GTID

    October 23, 2014

    This post describes in detail the method of using¬†Pseudo GTID to achieve unplanned replication topology changes, i.e. connecting two arbitrary slaves, or recovering from a master failure even as all its slaves are hanging in different positions. Please read Pseudo GTID and Pseudo GTID, RBR as introduction. Consider the following case: the master dies unexpectedly, […]

  • Pseudo GTID, Row Based Replication

    October 23, 2014

    This post continues Pseudo GTID, in a series of posts describing an alternative to using MySQL GTIDs. The solution offered in the last post does not work too well for row based replication. The binary log entries for the INSERT statement look like this: # at 1020 # at 1074 #141020 12:36:21 server id 1¬† […]

  • Pseudo GTID

    October 22, 2014

    Pseudo GTID is a method to implement a GTID-like solution where slaves are easily connected to one another. This blog post and the following ones will describe work in progress (some 80% completed), where simulation of GTID makes for a good enough basis for refactoring replication topologies. I'm coding this in orchestrator, which already provides […]

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