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August 20, 2021
Understanding EBS Latency: Storage Type Performance in AWS
EBS storage type choices in AWS can be impacted by a lot of factors. As a consultant, I get a [...]
August 20, 2021
Storing JSON in Your Databases: Tips and Tricks For MySQL Part Two
JSON Structure, The Next Generation (Performance, Scale, and Fun) Now you know the basic JSON functionality available to you, as [...]
August 19, 2021
Storing JSON in Your Databases: Tips and Tricks For MySQL Part One
Database architecture and design are becoming an increasingly lost art. With new technologies and the push towards faster development cycles, [...]
August 11, 2021
Pros and Cons: When You Should and Should Not Use MongoDB
Quite often we see that the main operational storage is used in conjunction with some additional services, for example, for [...]
August 10, 2021
PostgreSQL PL/Java – A How-To, Part 2: How to Manipulate and Return Tuples
We discussed how to install and create a simple class in the first part of this series where we ran [...]
August 10, 2021
Impact of Network and Cursor on Query Performance of PostgreSQL
Many times, we see PostgreSQL users getting confused about the query/statement duration reported in PostgreSQL logs. Other PostgreSQL tools like [...]
July 30, 2021
Improve PostgreSQL Query Performance Insights with pg_stat_monitor
Understanding query performance patterns is essentially the foundation for query performance tuning. It, in many ways, dictates how a database [...]
July 30, 2021
Percona Monthly Bug Report: July 2021
Here at Percona, we operate on the premise that full transparency makes a product better. We strive to build the [...]
July 29, 2021
PostgreSQL PL/Java – A How-To, Part 1
We’ve recently received some questions regarding PL/Java and I found it hard to get clear instructions searching on the internet. [...]
July 28, 2021
MongoDB: Modifying Documents Using Aggregation Pipelines and Update Expressions
Updating documents on MongoDB prior to version 4.2 was quite limited. It was not possible to set values to a [...]
July 26, 2021
The 1-2-3 for PostgreSQL Logical Replication Using an RDS Snapshot
We have several PostgreSQL versions that support logical decoding to replicate data changes from a source database to a target [...]
July 19, 2021
Performing ETL Using Inheritance in PostgreSQL
Good database maintenance includes not only performing the standard adding, updating, and deleting records, etc., but periodic edits to the [...]
July 12, 2021
How To Recover Percona XtraDB Cluster 5.7 Node Without SST
The Problem State Snapshot Transfer can be a very long and expensive process, depending on the size of your Percona [...]
July 9, 2021
Streaming MySQL Binlogs to S3 (or Any Object Storage)
Problem Statement Having backups of binary logs is fairly normal these days. The more recent binary logs are copied offsite, [...]
July 9, 2021
MySQL/ZFS Performance Update
As some of you likely know, I have a favorable view of ZFS and especially of MySQL on ZFS. As [...]
July 8, 2021
Authenticate Percona Server for MongoDB Users via Native LDAP
Percona Server for MongoDB supports two different ways of authenticating against an LDAP service: operating system libraries (aka Native LDAP) [...]
July 8, 2021
Refining Shard Keys in MongoDB 4.4 and Above
A 1st Stab at Correcting Bad Shard Key Selections MongoDB is designed to scale and handle very large data sets. [...]
July 7, 2021
Migrating Ownership of Your Stored Routines, Views, and Triggers in MySQL
“It would be nice to have an option, that would allow to suppress the DEFINER statement in the CREATE VIEW [...]
July 6, 2021
Sharding With Zones Based on Compound Shard-Keys on MongoDB 4.4
This article was written with the main purpose of showing you how to determine zones on a shard when using [...]
July 6, 2021
MyDumper 0.10.7 is Now Available
The new MyDumper 0.10.7 version, which includes many new features and bug fixes, is now available. You can download the [...]