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| <h2>MySQL database</h2> |
| The database servers, a master (main) and a slave (main2) handle all database traffic: Bugzilla, eclipse.org search engine, |
| eclipse.org website, the Wiki, and others. All write operations (committing a bug, indexing the site, tracking a download) go to the master |
| and are replicated immediately to the slave. Some applications, such as Bugzilla, Download Stats, the Website and Search, use the slave server for |
| searches and lookups for increased performance.<br /><br /> |
| |
| A high load average on main or main2 will cause database operations to be slower. The Queries_Per_Second and Threads metrics are good indicators of |
| how busy the database servers are. |
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