Who is affected

All the sites hosted on our shared hosting servers.

When

Maintenance window:

  • Begins: 2009-03-04 23:59:59 EST
  • Ends: 2009-03-05 00:30:00 EST

What will happen

During the planned maintenance window, MySQL services will be slower than usual while the secondary server takes over the primary one. This will mainly affect websites, which will all see a slowdown, maybe even complete outages.

Why

The main objective of the intervention is to test the capacity of the main server when idle, without any traffic, to compare it against the new server we are in the process of configuring as a replacement.

We also wish to test the capacity of the secondary server and the abilities of the sysadmin team to be able to proceed quickly with such an intervention, without being pressed by an actual emergency.

How

To proceed with those tests, we will turn off the main server and redirect all traffic to the secondary server. Since that server is of lesser capacity, substantial performance hit will be observable on our main servers.

The details of the operation are available on this page:

https://wiki.koumbit.net/RapportsIntervention/2009-02-04

If the operation takes longer than expected, we will announce it on http://offline.koumbit.net/

I object!

If this operation is too problematic for you or your organisation, please let us know within 24h to see if we can take appropriate workarounds.