November 2015

Date: Wednesday, November 25, 2015 (07:30-08:30)

Who is affected:
All users of CS Department public login (cycles/penguins/portal) and
compute (ionic) systems.

What is happening:
During this window, these machines will be rebooted in order to clear some
unkillable user processes which are interfering with some research work.

We will also take this opportunity to make configuration changes to reduce
the likelihood of recurrence for this and related issues.

Why is it happening:
As some user processes have entered an unkillable state, and as those
processes are preventing research work, they require a system reboot to
clear.

We will post updates to the status page: http://www.csstaff.org
as necessary.

If this downtime will cause you undue hardship, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.
Sincerely,
CS Staff
_______________________________________________
downtime mailing list
downtime@lists.cs.princeton.edu
https://lists.cs.princeton.edu/mailman/listinfo/downtime

As you may have noticed, this upgrade was not completed this morning due to issues with the upgrade process. Some critical parts of the system were successfully upgraded, which should allow us to upgrade more components in a less-disruptive way, but the process is not completed at this time.

More updates will follow at a future date. Thanks for your patience.

-CS Staff

—– Original Message —–
From: csstaff@CS.Princeton.EDU
To: downtime@lists.cs.princeton.edu
Sent: Tuesday, October 27, 2015 11:38:30 AM
Subject: [downtime] CS Email Downtime, Thursday, November 5, 2015, 06:00-09:00

Date: Thursday, November 5, 2015 (06:00-09:00)

Who is affected:
All users of CS Department email services

What is happening:
All incoming email services will be shutdown while the Zimbra server
software is upgraded.

During this time, IMAP, POP, and Webmail will all be unavailable, as will
any email forwarding or filtering. All incoming messages should be safely
queued on our MTAs for delivery after the downtime. IMAP and POP users
should not notice any changes after the downtime. Webmail users will see an
updated interface.

Why is it happening:
This upgrade will bring our mail server software up-to-date with the
current release version from Zimbra. Among other things, it will address
several recent vulnerabilities announced in various portions of the
software.

We will post updates to the status page: http://www.csstaff.org
as necessary.

If this downtime will cause you undue hardship, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.

Sincerely,
CS Staff
_______________________________________________
downtime mailing list
downtime@lists.cs.princeton.edu
https://lists.cs.princeton.edu/mailman/listinfo/downtime