Percona

Percona Xtrabackup – Some General Tips

When you stream Xtrabackup to agzipped tar file, it also contains the information about the binary log position where the server was at when the backup was started. This information is needed to start the lave at the same position again time nice -n 15 xtrabackup --backup --slave-info --safe-slave-backup --stream=tar | gzip -c > /var/backup/percona.dump.tar.gz</code>``` In order to get that position without extracting the archive file, you can use the following command tar -xOf /var/backup/percona.

Compile Percona Query Playback

Install the prerequisits and clone the repository. sudo apt-get install libtbb-dev libmysqlclient-dev libboost-program-options-dev libboost-thread-dev libboost-regex-dev libboost-system-dev libboost-chrono-dev pkg-config cmake libssl-dev git clone https://github.com/Percona-Lab/query-playback.git cd query-playback/ mkdir build_dir cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..``` You might see this error CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: MYSQL_LIB linked by target “mysql_client” in directory /home/sproell/git/query-playback/percona_playback/mysql_client

Verifying Replication Consistency with Percona’s pt-table-checksum

Replication is an important concept for improving database performance and security. In this blog post, I would like to demonstrate how the consistency between a MySQL master and a slave can be verified. We will create two Docker containers, one for the master one for the slave. Installing the Percona Toolkit The Percona Toolkit is a collection of useful utilities, which can be obained for free from the company’s portal. The following commands install the prerequisits, download the package and eventually the package.