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IRIS

Instructional & Research Information Systems

Intermittent E-Mail Delays

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There have been some intermittent problems with the imap server, and the problems are currently being looked into.

Mail continues to be slow at times due to the amount of SPAM processed.

IDSG is working to resolve the problem.

IDSG continues to work with an open call to the vendor to solve this problem.

There is no estimated date for a resolution.
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IRIS Website and Mailing Lists Offline Briefly Due to Maintenance

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The IRIS Website and Sympa Mailing Lists will be offline briefly beginning at 11:00 p.m. on Wednesday, February 27, 2008 due to server maintenance.

The machine serving as a web and database server for both services needs to be patched and rebooted. Total downtime should be less than 30 minutes. Any messages sent to one of the Sympa mailing lists during this time will be queued and delivered once service is restored.
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Loss of Connections to Coeus and Project

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Unfortunately, the changes we made during the scheduled maintenance window to provide better redundancy caused an unforeseen loss of connectivity to our NIS servers on one network. This resulted in loss of mounts to Coeus and Project. We rolled back the changes and service has been restored. We will try again at a later date after we resolve the issue. Unfortunately, the issue was not discovered until after our scheduled downtime was over. We regret the inconvenience this caused.

Resolved as of 2008-02-27 08:45:00

Innocuous Returned Mail 2/25 1:03 PM – 1:12 PM

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Due to human error, two of the departmental Mail eXchangers had a temporary problem between 1:03 p.m. and 1:12 p.m. PDT on Monday February 25, 2008.

In addition to the normal delivery to @ERSO.Berkeley.EDU, @CS.Berkeley.EDU, and @EECS.Berkeley.EDU e-mail addresses during that time, bounces were sent to the envelope sender typically with a “Subject: Returned Mail” and text about either “mailtest.cs.berkeley.edu: host not found” or “mailtest.EECS.Berkeley.EDU>… User unknown”

No email was lost. We are sorry for the inconvenience.

Resolved as of 2008-02-25 13:12:00

Network Maintenance 2/27 7:00 am – 8:00 am

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There will be network maintenance at Soda 2nd floor on Wed Feb 27th between 7:00AM and 8:00AM. During this network downtime, both cronus and rhea will be off the network. Departmental NIS and time services will be down. Well-configured systems such as dhcp clients should be able to use their third DNS server during the downtime.

We expect the actual down time to only be several minutes but we are scheduling a larger window for the outage in case we encounter any unexpected problems.

Please make your plans accordingly.

AirBears/AirBearsBeyond Wireless Outage

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AirBears and AirBearsBeyond service went down last evening and magically came back about 03:00 this morning. All clients were unable to get a lease. IS&T is investigating the Soda Hall Access Manager again as this has happened before in recent weeks and is still a mystery. All EECS WLANs were unaffected.

Resolved as of 2008-02-21 03:00:00

February Server Patching

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Microsoft will release their patches for the month on Tuesday, Feb. 12th, 2008.

PRINT, RIS and WINSWW will automatically patch and reboot Wednesday, Feb 13th, at 3:00 am.

HERMES and macserver.eecs will be down for patching and maintenance Wednesday, Feb 13th, from 3:00p – 5:00p.
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LDAP Server Issues

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The departmental mail server (imap.eecs) and LDAP servers should now be working mostly properly. However, there are a few unresolved technical problems. You may encounter SSL certificate validation errors on our LDAP server (ldap.eecs and ldap.cs). As such, it may not be completely reliable for the remainder of today, and possibly across this weekend as well. We are actively working on solving the underlying problem, and will post an update as soon as we can.

No incoming or outgoing email was lost.

Technical background: Earlier today, the SSL certificates on our LDAP servers expired. This caused the LDAP daemon on ldap.eecs to hang, and refuse new connections. This cacscaded into a failure of part of IMAP system, and the IMAP daemon on imap.eecs similarly hung. We’ve managed to restart the daemons on both servers. Unfortunately, we’re running into a problem on the LDAP server, and are unable to install new, un-expired SSL certificates. As a result, we’re not completely confident that our LDAP servers won’t crash again, and take the IMAP server with it. Again, we’re continuously working on trying to fix this.
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