Monthly Archives - June 2018

This Week in Data with Colin Charles 44: MongoDB 4.0 and Facebook MyRocks

Colin Charles

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.
There have been two big pieces of news this week: the release of MongoDB 4.0 and the fact that Facebook has migrated the Messenger backend over to MyRocks.
MongoDB 4.0 is stable, with support for multi-document […]

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Percona XtraDB Cluster 5.7.22-29.26 Is Now Available

Percona XtraDB Cluster 5.7

Percona announces the release of Percona XtraDB Cluster 5.7.22-29.26 (PXC) on June 29, 2018. Binaries are available from the downloads section or our software repositories.
Percona XtraDB Cluster 5.7.22-29.26 is now the current release, based on the following:

Percona Server for MySQL 5.7.22
Galera/Codership WSREP API Release 5.7.21
Galera Replication library 3.23

Deprecated
The following variables are deprecated starting from this […]

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MySQL 8.0 Hot Rows with NOWAIT and SKIP LOCKED

MySQL 8.0 hot rows

In MySQL 8.0 there are two new features designed to support lock handling: NOWAIT and SKIP LOCKED. In this post, we’ll look at how MySQL 8.0 handles hot rows. Up until now, how have you handled locks that are part of an active transaction or are hot rows? It’s likely that you have the application […]

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Faster Point In Time Recovery (PITR) in PostgreSQL Using a Delayed Standby

PostgreSQL Point in Time Recovery

The need to recover a database back to a certain point in time can be a nerve-racking task for DBAs and for businesses. Can this be simplified? Could it be made to work faster? Can we recover to a given point in time with zero loss of transactions/records? Fortunately, the answer to these questions […]

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What To Do When MySQL Runs Out of Memory: Troubleshooting Guide

MySQL memory troubleshooting

Troubleshooting crashes is never a fun task, especially if MySQL does not report the cause of the crash. For example, when MySQL runs out of memory. Peter Zaitsev wrote a blog post in 2012: Troubleshooting MySQL Memory Usage with a lots of useful tips. With the new versions of MySQL (5.7+) and performance_schema we have […]

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Percona Monitoring and Management 1.12.0 Is Now Available

Percona Monitoring and Management 1.17.0

PMM (Percona Monitoring and Management) is a free and open-source platform for managing and monitoring MySQL and MongoDB performance. You can run PMM in your own environment for maximum security and reliability. It provides thorough time-based analysis for MySQL and MongoDB servers to ensure that your data works as efficiently as possible.
In release 1.12, we invested our efforts in the following areas:

Visual Explain in Query […]

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Scaling PostgreSQL with PgBouncer: You May Need a Connection Pooler Sooner Than You Expect

PostgreSQL connection pools

As PostgreSQL based applications scale, the need to implement connection pooling can become apparent sooner than you might expect. Since, PostgreSQL to date has no built-in connection pool handler, in this post I’ll explore some of the options for implementing connection pooling. In doing so, we’ll take a look at some of the implications for […]

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Webinar 6/28: Securing Database Servers From External Attacks

securing database servers

Please join Percona’s Chief Evangelist Colin Charles on Thursday, June 28th, 2018, as he presents Securing Database Servers From External attacks at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4).
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A critical piece of your infrastructure is the database tier, yet people don’t pay enough attention to it judging by how many are […]

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MongoDB Explain – Using PMM-QAN for MongoDB Query Analytics

MongoDB 4.0 Features Webinar

In this blog post, we will walk through PMM-Query Analytics for MongoDB. We will see how to analyze MongoDB query performance; review the initial parameters that we need to check; and find out how to compare MongoDB query performance with and without indexes with the help of EXPLAIN plan.
The Percona Monitoring and Management QAN (PMM-QAN) dashboard […]

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Webinar 6/27: MySQL Troubleshooting Best Practices: Monitoring the Production Database Without Killing Performance

performance troubleshooting MySQL monitoring tools

Please join Percona’s Principal Support Escalation Specialist Sveta Smirnova as she presents Troubleshooting Best Practices: Monitoring the Production Database Without Killing Performance on Wednesday, June 27th at 11:00 AM PDT (UTC-7) / 2:00 PM EDT (UTC-4).
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During the MySQL Troubleshooting webinar series, I covered many monitoring and logging tools such as:

General, slow, audit, binary, error […]

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