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Dealing With “Too Many Connections” Error in MySQL 8

Percona

Your MySQL connection id is 144 Server version: 8.0.29-21 21 Percona Server (GPL), Release 21, Revision c59f87d2854 Copyright (c) 2009-2022 Percona LLC and/or its affiliates Copyright (c) 2000, 2022, Oracle and/or its affiliates. Type 'c' to clear the current input statement. Commands end with ; or g.

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How to Install or Upgrade Percona Server for MySQL/MySQL 8 to a Specific Version on Debian/Ubuntu

Percona

Sometimes we might need to install/upgrade Percona Server for MySQL /MySQL 8 to a particular version in a test or production environment. Install Percona Server for MySQL 8 specific version packages via repository. Download specific Percona Server for MySQL 8 tarball packages and install them manually. bullseye amd64 1.7

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High Memory Usage on ProxySQL Server

Percona

There can be an instance of ProxySQL using a lot of memory on the server. This post is related to one of the causes that can use memory on the ProxySQL server and how we handle it. Your MySQL connection id is 1 Server version: 5.5.30 (ProxySQL Admin Module) Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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Matching Supply With Demand — Solutions, Part 3

SQL Performance

1 D 5.000000 2 D 3.000000 3 D 8.000000 5 D 2.000000 6 D 8.000000 7 D 4.000000 8 D 2.000000 1000 S 8.000000 2000 S 6.000000 3000 S 2.000000 4000 S 2.000000 5000 S 4.000000 6000 S 3.000000 7000 S 2.000000. The idea to use a full outer join based on a predicate that compares the demand and supply running totals is a stroke of genius!

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tempdb Enhancements in SQL Server 2019

SQL Performance

I have been making the same recommendations about tempdb since I started working with SQL Server over 15 years ago, when I was working with customers running version 2000. From the customer side, this has been the limit of what can be done*, until SQL Server 2019. I have SQL Server 2019 CTP 3.2 OrderID , c.

Servers 95
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Is Thread Pool Plugin the Right Choice for Your Workload?

Percona

Two setups running in cluster mode: one in MariaDB+Galera and one with Percona XtraDB Cluster (Percona Server+Galera). For this reason, I’ve set up a server with the following specs: r6a.2xlarge 2xlarge ec2 VM (8 vCPU – 64GB of RAM) 1TB gp2 drive (roughly 3k IOPS) Percona Server 8.0.34-26

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How Many Warehouses for the HammerDB TPC-C Test?

HammerDB

For a really quick answer create a schema with 250-500 warehouses per server CPU socket for more details size as follows. . The official TPC-C test has a fixed number of users per warehouse and uses keying and thinking time so that the workload generated by each user is not intensive.

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