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Tag Archives: GTID-replication

Fixing errant transactions with mysqlslavetrx prior to a GTID failover

Errant transactions are a major issue when using GTID replication. Although this isn’t something new, the drawbacks are more notorious with GTID than with regular replication. The situation where errant transaction bites you is a …

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super_read_only and GTID replication

Percona Server 5.6.21+ and MySQL 5.7.8+ offer the super_read_only option that was first implemented in WebscaleSQL. Unlike read_only, this option prevents all users from running writes (even those with the SUPER privilege). Sure enough, this …

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Online GTID rollout now available in Percona Server 5.6

Global Transaction IDs (GTIDs) are one of my favorite features of MySQL 5.6. The main limitation is that you must stop all the servers at the same time to allow GTID-replication. Not everyone can afford …

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Failover with the MySQL Utilities: Part 2 – mysqlfailover

In the previous post of this series we saw how you could use mysqlrpladmin to perform manual failover/switchover when GTID replication is enabled in MySQL 5.6. Now we will review mysqlfailover (version 1.4.3), another tool …

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