SRE/Data Persistence/Databases/Runbooks

SRE Data Persistence technical documentation

Wikimedia infrastructure

Data centers

Networking

Global traffic routing

MediaWiki

Multimedia

Data Persistence

• MariaDB architecture
• MariaDB troubleshooting
• MariaDB monitoring
• MariaDB backups
• Database Runbooks
• Bacula
• Media backups
• Offsite Backups
• Backup Runbooks
• Orchestrator

Observability

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Data Engineering

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Starting and stopping MariaDB

Steps to start or stop MariaDB.

Provisioning a host

Adding a racked host to configuration.

Reimagining a host

TBD.

Rebooting a host

Steps that need to be taken when rebooting (or booting) a DB host.

Decommissioning a host

Removing a host from configuration and preparing it for physical decommissioning.

Schema change

TBD.

DB sanitization

TBD.

Primary switchover

Steps to switchover a MariaDB primary.

Upgrading a section

Upgrading a section to a new OS and MariaDB version.

Orchestrator operations and troubleshooting

Orchestrator is a service for managing mysql cluster replication.