Related MySQL Tips and Tricks
Planned Outages
disable paging during a known outage
/tmp/.dbi_down file
how to let all machines know?
how will processes react?
Restartable Processing
stateful processes which log and checkpoint
or processes which can do redundant work
Replication and DNS
easy switch to new master
low TTL on CNAME records
no real performance impact
but it *is* a manual process