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Displaying posts with tag: multi-threaded-slaves. intra-schema-mts (reset)

MySQL 5.7 Enhanced MTS: configuring slave for Intra-database parallelization
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MySQL 5.7.2 features enhanced Multi-threaded slave which can be used to apply transactions in parallel even within a single database. Internal details of its working can be found in an earlier post. In this  post we will see how we can configure our replication slave to use this enhancement.
MySQL 5.7.2 has a new system variable  --slave-parallel-type which is dynamic. It can be set to the following values:

1. DATABASE  : (Default) Use the db partitioned MTS (1 worker per database)
2. …



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MySQL 5.7: Enhanced Multi-threaded slaves
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IntroductionRe-applying binary logs generated from highly concurrent master on the slave has always been an area of focus. It is important for various reasons. First, in real-time systems, it becomes extremely important for the slave to keep up with the master. This can only be guaranteed if the slaves’ performance in reapplying the transactions from the binary log is similar (or at-least comparable) to that of master, which is accepting queries directly from multiple clients. Second, in synchronous replication scenarios, having a fast slaves, aids in reducing the response times as seen by the clients to the master. This can be made possible by applying transactions …

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