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IRIS

Instructional & Research Information Systems

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Mailing List service

Mailing list messages delayed

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The EECS mailing list server, lists.eecs.berkeley.edu, ran out of memory and stopped processing messages around 4am on Friday, November 7. It was restarted around 9am.

During the outage, the server was accepting incoming messages but not redistributing them. Once it was restarted all messages were then delivered. No messages should have been lost.

We will be adding more memory to the server in the next day or two, which should prevent this problem from occurring again.

We apologize for the inconvenience.

Resolved as of 2008-11-07 09:15:00

Brief Interruption of Some IRIS Services

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The department website, Jabber and Sympa services were briefly interrupted this morning due to an issue with the cluster that provides them.

Each service was unavailable for a few minutes between 10:00 a.m. and 10:30 a.m. as the server cluster they run on was restarted. Restarting the cluster was necessary to alleviate a deadlock in the clustered file system used by the services.

My apologies for any inconvenience this has caused, I’m looking into how to avoid this situation in the future and bring more stability to the cluster.

Resolved as of 2008-10-28 10:30:00

Unexpected Outage of Dept. Website, FTP, and Mailing Lists

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Due to some necessary maintenance to some SAN hardware, the department’s website, FTP server, and mailing lists experienced brief outages this evening beginning around 6:24 p.m.

The website and FTP server were only offline for about six minutes, but mail sent to lists handled by lists.eecs.berkeley.edu (Sympa) during the outage may have been delayed up to 45 minutes. I apologize for any inconveniences this may have caused.

The server hosting the department web and FTP services along with the one hosting the database used by Sympa went offline when they unintentionally lost their connection to the SAN during maintenance. The maintenance was last-minute and shouldn’t have caused any disruption, but it didn’t quite go as planned.

Hardware has arrived to allow us to make redundant connections to the SAN for these services which will make them more resilient in future situations like this one. We plan to have the hardware installed and in use soon.

Resolved as of 2008-10-08 19:20:00

EECS Website, FTP, Jabber, and Sympa Offline for Urgent SAN Maintenance

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Due to some urgent maintenance to the SAN, the EECS Website, EECS FTP server, Jabber, and Sympa (mailing lists) services will be offline from 5:00 p.m. to 6:00 p.m. on Tuesday, September 23, 2008.

The servers hosting the aforementioned services lack redundant connections to the SAN which prevents them from remaining in service during the maintenance. We realize this is an unfortunate limitation and are procuring new hardware which will add the redundancy necessary to handle similar situations more gracefully in the future.

Our apologies for the short-notice and inconvenience.
[Read more…] about EECS Website, FTP, Jabber, and Sympa Offline for Urgent SAN Maintenance

Department Mailing List Server Maintenance, Aug 20, 6-8pm

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The EECS Department’s mailing list server lists.eecs.berkeley.edu will be undergoing maintenance from 6pm-8pm on Wednesday, August 20th. During this time, mail sent to any departmental mailing list will be held for delivery until the maintenance is completed.

During this maintenance we will be upgrading the mailing list manager software to the latest version and migrating the service to a new, faster hardware.

Please send any questions to help@eecs.
[Read more…] about Department Mailing List Server Maintenance, Aug 20, 6-8pm

IRIS Website and Mailing Lists Offline for Patching, April 9

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Beginning at 10:00p.m. on Wednesday, April 9 the IRIS website and all mailing lists hosted on lists.eecs.berkeley.edu will be offline for a few minutes for operating system patching.

Downtime should be brief and mail sent to lists.eecs.berkeley.edu during this time will be queued and delivered when service is restored.

Resolved as of 2008-04-09 22:08:00