Monthly Archives - February 2019

Percona XtraBackup Now Supports Dump of InnoDB Buffer Pool

percona-xtra-backup buffer pool restore

InnoDB keeps hot data in memory on its buffer named InnoDB Buffer Pool. For a long time, when a MySQL instance needed to bounce, this hot cached data was lost and the instance required a warm-up period to perform as well as it did before the service restart.
That is not the case anymore. Newer […]

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MySQL Challenge: 100k Connections

thread pools MySQL 100k connections

In this post, I want to explore a way to establish 100,000 connections to MySQL. Not just idle connections, but executing queries.
100,000 connections. Is that really needed for MySQL, you may ask? Although it may seem excessive, I have seen a lot of different setups in customer deployments. Some deploy an application connection pool, […]

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Percona Live 2019 First Sneak Peek!

We know you’ve been really looking forward to a glimpse of what to expect at Percona Live Austin, so here is the first sneak peek of the agenda!
Our conference committee has been reviewing hundreds of talks over the last few weeks and is delighted to present some initial talks.

New features in MySQL 8.0 Replication by Luís […]

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PostgreSQL fsync Failure Fixed – Minor Versions Released Feb 14, 2019

fsync postgresql upgrade

In case you didn’t already see this news, PostgreSQL has got its first minor version released for 2019. This includes minor version updates for all supported PostgreSQL versions. We have indicated in our previous blog post that PostgreSQL 9.3 had gone EOL, and it would not support any more updates. This release includes the […]

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Measuring Percona Server for MySQL On-Disk Decryption Overhead

benchmark heavy IO percona server for mysql 8 encryption

Percona Server for MySQL 8.0 comes with enterprise grade total data encryption features. However, there is always the question of how much overhead – or performance penalty – comes with the data decryption. As we saw in my networking performance post, SSL under high concurrency might be problematic. Is this the case for data […]

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