After upgrading to Percona’s patched MySQL 5.1*, end users were having connectivity problems, and reporting errors such as: OperationalError: (2003, “Can’t connect to MySQL server on ‘db-amo-ro’ (110)”) TimeoutError: Request timed out after 5.000000 seconds OperationalError: (1135, “Can’t create a … Continue reading
Posts from May, 2013
A while ago (November 2012 to be exact), we upgraded the support.mozilla.org databases from Percona 5.1 to MariaDB 5.5 (the next step, happening soon, is upgrading them to Oracle’s MySQL 5.6). One of the engineers and I had a conversation … Continue reading
The May Boston MySQL User Group featured John Hugg of VoltDB talking about determinism and databases. I have uploaded the hour-long video to http://www.youtube.com/watch?v=mTDLyRauJtw. Seasoned MySQLers will nod their heads because the problems described are familiar, and those who are … Continue reading
On May 15 at 1800 PDT Nagios alerted the start of sporadic DNS resolution failures. This post summarizes the events, the impact and specific steps Mozilla IT is taking to avoid future disruptions of this nature. This post is intended … Continue reading
From the May 6 weekly Project Meeting: Sometimes Mozilla IT shows a different side and brings Mozilla to the classroom.
From the April 29 weekly Project Meeting: hg push server had an issue last week, failover to a redundant push node happened with little impact Details: the way hg is setup there is a single server for changes over ssh … Continue reading