Hello all, yesterday at highnoon the master-db-servers were switched because of an huge schema-update. Because we have only one cluster of db-servers at the moment we couldn't do the schema-update the same way like the foundation (the foundation stops one of their slaves, does the schema-update, waits, start it again, stops another slave, does the schema-update and so on until all slaves are updated, and declare one slave as new master, runs the schema-update on the old master = no downtime) and so it took several hours until the schema-update was done and we could switch to the new master-servers. I deleted the view on the logging-table during the update to speed the update up and killed several long-running queries too tonight. The update was finish before I wake-uped, and I just finished the masterswitch, restarted replication and recreated the logging-tables (see maintaince-log for details). So in a few hours everything should be normal again.
Happy Corpus Christi (it's an holiday here :)). Sincerly, DaB. -- wp-blog.de
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