The Ultimate Guide to High Availability with MariaDB

Multi master replication and deadlock detection in Galera with Mariadbs

Hi,

We have multi master Galera replication setup where three master mariadbs are continuously updated. 1. Because of which occasionally a transaction encounters deadlock. 2. The JDBC queries slow down their executions if we allow continuous table updates.

Add to the mix an event that purges the tables and we noticed a deletion of more than 200000 entries held the lock for more than 15 seconds.

How can we rectify this problem? Is there a way to improve DB performance in replication setup? We also used non replicated setup and the portal does not encounter any JDBC connection errors.

Your insights are much appreciated.

Thanks

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