Percona

APRIL 10, 2023

During export, mydumper sends SELECT statements to the database. mydumper -o data -B test --defaults-file=mydumper.cnf -r 100000 -c real 0m19.964s user 0m48.396s sys 0m7.885s It took near 19.9 mydumper -o data -B test --defaults-file=mydumper.cnf -r 100000 -c real 0m19.964s user 0m48.396s sys 0m7.885s It took near 19.9

Testing 105

Testing C++ Open Source Database 105

Percona

MAY 1, 2023

It has default settings for all of the database parameters. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. The performance of a PostgreSQL database has a significant impact on the overall effectiveness of an application.

Tuning 52

Tuning Efficiency Database Performance 52

HammerDB

FEBRUARY 27, 2024

The HammerDB TPROC-C and TPROC-H workloads are derived from the TPC-C and TPC-H workloads respectively. Although the HammerDB workloads are not identical to TPC-C and TPC-H it is still important that the workloads implemented maintain the same data consistency as the official workloads. Database Exists. Tables Exist.

C++ 62

C++ Database Virtualization Testing 62

Testlodge

JULY 19, 2023

SOX compliance testing validates changes made to code and verifies adherence to internal controls. Testers are responsible for testing code changes to ensure accuracy. The overall intention of SOX testing is to protect stakeholders and other investors from corporate fraud. There are four major types of controls.

Testing 81

Testing Energy Programming Government 81

HammerDB

DECEMBER 5, 2020

compared to previous releases is that the workload names have changed from TPC-C and TPC-H to TPROC-C and TPROC-H respectively and therefore a key question is how are the v4.0 The simple answer is nothing, the workloads are exactly the same workloads derived from the TPC-C and TPC-H specifications and HammerDB v4.0

C++ 40

C++ Benchmarking Virtualization Open Source 40

Testlodge

APRIL 14, 2021

Configuration testing is performed to discover the optimum combinations of software and hardware specifications that allow the system to work without flaws. What is Configuration Testing? However, configuration testing is a time-consuming technique, so the team must create a workable plan. Types of Configuration Testing.

Testing 89

Testing Hardware Virtualization Operating System 89

Percona

MAY 16, 2023

This was the first official image and since then, we have been improving our testing and packaging procedures based on Docker, CircleCI, and GitHub Actions. However, when I’m coding, I’m not testing in Docker. 7 sh -c "rm -rf /backups/data; mydumper -h 172.17.0.5 -o 7 sh -c "myloader -h 172.17.0.4 -d

C++ 94

C++ Open Source Database Testing 94

DZone

JANUARY 3, 2020

A former Oracle database developer, who helped maintain Oracle v12.2 and its 25 million lines of C code, described his struggling life with bugs this way: Spend weeks trying to understand the 20 different flags that interact in mysterious ways to cause a bug. Find out that his fix causes 100~1000 failed tests.

C++ 162

C++ Code Database Testing 162

HammerDB

JULY 15, 2021

Instead, however, this was an imposed limit to encourage right-sizing of the test database instead of over-sizing. However, the precision of some numeric data types may not have been sufficient for larger values in some databases. All databases have been checked and updated for v4.2

C++ 52

C++ Virtualization Database Testing 52

HammerDB

OCTOBER 24, 2023

by @krithikasatish and @JoshInnis to provide accelerated load performance for both SQL Server TPROC-C and TPROC-H schemas. This earlier functionality has the advantage that there are no intermediate staging files required, and data is inserted into the database with multi-row inserts as soon as it is created.

Servers 62

Servers C++ Benchmarking Virtualization 62

Percona

DECEMBER 7, 2023

Add data to the database Let’s add some data to the Percona Server database. Create a test database and add a table t1 inside with five rows. mysql -uroot -pmysql -e "CREATE DATABASE IF NOT EXISTS test;" >/dev/null 2>&1 sudo docker exec -it percona-server-8.1 and Percona XtraBackup 2.4

C++ 92

C++ Open Source Servers Database 92

Percona

SEPTEMBER 29, 2023

Let’s test this. To test this, create a new user, “app_user,” with only the privileges for DDL/DML. beta2) Running the test with following options: Number of threads: 10 Initializing random number generator from current time Initializing worker threads. CONNECTION_ADMIN is required from MySQL 8.0.31

C++ 94

C++ Servers Open Source Database 94

HammerDB

MARCH 25, 2023

Docker build, example CLI scripts were added to build and run the TPROC-C workload in the Tcl language. these were enhanced to also add Python based scripts, and to include scripts for both TPROC-C and TPROC-H and a driver script for Linux environments. With the HammerDB v4.5 In HammerDB v4.6 With HammerDB v4.7 hammerdbcli auto./scripts/tcl/maria/tprocc/maria_tprocc_buildschema.tcl

C++ 83

C++ Virtualization Benchmarking Database 83

HammerDB

OCTOBER 17, 2018

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. With HammerDB this home warehouse is chosen at random at the start of the test and remains fixed. Additionally it is important to understand the workload.

C++ 40

C++ Testing Virtualization Cache 40

HammerDB

JULY 14, 2021

However, as the two databases diverged from a shared common codebase, this presented a challenge in that it was not possible to modify the workload for MySQL or MariaDB without also changing the other. Also, the additional installation of the MySQL client libraries was needed when testing MariaDB. Prior to HammerDB v4.2 HammerDB v4.2

Testing 57

Testing C++ Virtualization Tuning 57

Percona

APRIL 21, 2023

Below is my current topology: [root@monitor ~]# orchestrator-client -c topology-tabulated -alias testcluster | tr '|' 't' 192.168.56.10:3306 Below is my current topology: [root@monitor ~]# orchestrator-client -c topology-tabulated -alias testcluster | tr '|' 't' 192.168.56.10:3306 3306 0s ok 5.7.41-44-log 3306 0s ok 5.7.41-44-log

C++ 83

C++ Monitoring Database Open Source 83

The Morning Paper

MAY 27, 2019

CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment Davis et al., And this all has to work for whole-system executions, not just the C-language portion of user processes. The MIPS rows show the test suite results on a standard mips64 system. ASPLOS’19.

C++ 61

C++ Hardware Virtualization Benchmarking 61

Percona

JUNE 20, 2023

In order to understand “segmentation fault,” it is a must to know the basic idea of segmentation and its implementation in C programming. However, this blog is written from the database perspective; hence, I would not prefer to dive into those scenarios as they are very high-level programming concepts.

Programming 83

Programming C++ Database Virtualization 83

Percona

AUGUST 31, 2018

It has default settings for all of the database parameters. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. It is important to pay attention to performance when writing database queries. PostgreSQL’s Tuneable Parameters. shared_buffer.

Tuning 55

Tuning Database Performance Benchmarking 55

HammerDB

JULY 17, 2019

From the previous post we now have source and binary copies of HammerDB for modification and test. The next step is to see if there is an Issue already created for the database we want to add or whether we should create one. You can now begin modifying the source to add your database. <? . <mariadb>

Database 40

Database C++ Testing Metrics 40

Percona

SEPTEMBER 19, 2023

This type of backup is suitable for large, important databases that need to be recovered quickly when problems occur. Physical backups are the backups that consist of raw copies of the directories and files that store database contents. Copyright (c) 2016, 2023, Oracle and/or its affiliates. Press ^C to stop.

C++ 104

C++ Servers Storage Speed 104

Scalegrid

JUNE 18, 2019

servers.mongodirector.com:27017/test?replicaSet=RS-example-0&ssl=true" Our yml file: development: # Configure available database clients. Alternatively, you can define the following: # # Define the name of the default database that Mongoid can connect to. # (required). The user's database roles. user: 'testuser'. #

C++ 100

C++ Servers Database Network 100

HammerDB

MARCH 27, 2023

introduced a Dockerfile and Docker Images to pull from Docker Hub for rapid deployment of HammerDB with builds already including third-party database libraries. Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized SQLite on-disk database /home/hammerdb/HammerDB-4.7/TMP/hammer.DB HammerDB v4.5

Benchmarking 51

Benchmarking Testing Database C++ 51

HammerDB

JUNE 22, 2023

Configuring the Jobs Database The base configuration is set in the xml files in the config directory with the jobs SQLite database being set in the commandline section of generic.xml by specifying the filename. Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized new Jobs on-disk database /opt/HammerDB-4.8/DATA/hammer.db

Benchmarking 57

Benchmarking C++ Virtualization Database 57

Percona

OCTOBER 3, 2023

While THP can be beneficial for many applications, enabling it on a database server could have unintended consequences. In this post, we will explore THP, its impact on database servers, and how to disable it for optimal performance and stability. As such, it is generally recommended to disable THP for most database workloads.

Database 87

Database Servers Open Source C++ 87

HammerDB

DECEMBER 1, 2022

In particular, after a running a test it would be ideal to have a repository where we could verify the configuration of the workload that was run, the results and any timing or transaction count data generated to bring all the log output into a central location. . <commandline> This happens for both a schema build and running a test.

Virtualization 57

Virtualization C++ Storage Database 57

Scalegrid

FEBRUARY 15, 2024

In a world where data security is essential, enabling MongoDB SSL is critical in fortifying your database. Each section is crafted to elevate your database’s security protocol, from acquiring the necessary SSL certificates to configuring server and client connections.

Servers 130

Servers Best Practices Government Network 130

SQL Performance

DECEMBER 9, 2020

In a comment to my article, Marcos Kirchner mentioned that he tested my solution with varying table value constructor cardinalities, and got different execution times for the different cardinalities. Testing different base table cardinalities is just one dimension to try. You can create supporting tables in the user database if needed.

C++ 114

C++ Servers Testing Processing 114

Percona

OCTOBER 2, 2023

You can get summaries of your database servers, or you verify replication lag on MySQL and PostgreSQL servers. You get thirty-eight scripts that can do any manner of actions, and you will find them very valuable in your regular database work. And did I mention they are open source?! 25 Buffer Pool Size | 128.0M

Cache 98

Cache Database Virtualization Servers 98

Percona

FEBRUARY 16, 2023

I asked ChatGPT the question: “C an we backup and then remove the keyring file used for encryption at rest plugin after MySQL starts? ” keyring_file_data=/var/lib/mysql/keyring_file mysql> create database test; mysql> show create schema testG 1. row Database: test Create Database: CREATE DATABASE `test` /*!40100

Database 116

Database Servers Engineering Testing 116

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. print(z," VU TEST") . print("TEST SEQUENCE COMPLETE"). Vuser 1:Timing test period of 1 in minutes Vuser 2:RUNNING Vuser 2:Initializing xtprof time profiler Vuser 2:Processing 10000000 transactions with output suppressed. >hammerdbcli py.

Virtualization 44

Virtualization C++ Lambda Monitoring 44

SQL Performance

JULY 13, 2022

This could also happen if you need to migrate code written for another database platform with a different dialect of SQL to T-SQL. To test the performance of the solutions, you’ll need a larger set of sample data. L0 AS ( SELECT 1 AS c. So you have to come up with a supported alternative.

C++ 112

C++ Code Azure Database 112

SQL Performance

APRIL 13, 2022

It’s based on a question from a public database forum. To test the performance of your solution, you’ll need to populate the table with larger volumes of sample data. L0 AS ( SELECT 1 AS c. numgroups AS INT = 1000 , @rowspergroup AS INT = 10000 , -- test with 1000 to 10000 here. T1 ; INSERT INTO dbo.

C++ 136

C++ Strategy Testing Servers 136

HammerDB

APRIL 19, 2023

Among the different components of modern software solutions, the database is one of the most critical. There are many times we get asked why some cloud instance performed poorly for their database application and almost always turned out to be some configuration error. TB)) for storage of database tablespaces and logging.

Performance 54

Performance Benchmarking Cache Storage 54

HammerDB

NOVEMBER 23, 2021

cloud based usage led to the development of a HammerDB HTTP based web service interface with output data stored in a SQLite database repository. ws_port defines on which port to start the HTTP service, whilst sqlite_db sets the location of the SQLite repository database. Running a schema build. HammerDB Web Service v4.3

Virtualization 70

Virtualization Benchmarking C++ Database 70

SQL Performance

AUGUST 1, 2022

I’ll be using the sample database TSQLV6 in the examples in this article. You can download this sample database here. 75 Test XYZ Student C 55 Test XYZ 77.5 75 Test XYZ Student D 55 Test XYZ 77.5 75 Test XYZ Student H 65 Test XYZ 77.5 75 Test XYZ Student I 75 Test XYZ 77.5

Servers 142

Servers Testing C++ Code 142

SQL Performance

JANUARY 13, 2021

L0 AS ( SELECT 1 AS c. ORDER BY rownum ; I used the following code to test the function with "Discard results after execution" enabled in SSMS: SELECT n FROM dbo. L0 AS ( SELECT 1 AS c. BatchMe ON 1 = 0. Alan Burstein's and Charlie's improvements.

C++ 113

C++ Code Testing Processing 113