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Author archives: John Bazik

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Today's service downtime for mailing lists, time machine and ownCloud due to filesystem maintenance will be extended until noontime.  This post will be updated when service returns.

UPDATE: CIS restored file services a bit before 2pm today.  Mailing list services were restored at around 2:30pm.

UPDATE​​​​​​​: Time Mchine has been restored.

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Two GPFS NFS servers failed simultaneously at around 1pm today, causing file services to be unavailable for about 40 minutes.  The servers, crows and runts, serve different cluster groups; crows serves the grid and runts serves the internal department network.  Runts' failure was a kernel lock-up which prevented the normal automatic failover behavior.  The technical ...

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CS Joins Brown Events Calendar

The Computer Science Department event calendar is now hosted on Brown's campus-wide event calendar system.  The "topical area" of Computer Science is where you will find our events both past and future.  The CS website still displays upcoming events on the home page and on the events page using an ical feed from university ...

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At around 11:30am today, our local DNS database became corrupted, causing domain name resolution to fail for local hosts.  This caused a series of cascading failures which rendered most local services unusable.  We restored the database and restarted our name service shortly after noon and all services should be back to normal.  We are ...

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The CS Department mailing list server was down for much of today after an update caused a local misconfiguration.  An update to our Sympa software which was automatically installed overnight broke a local configuration script and caused the service to be unresponsive from around 12:30am this morning until about 7pm this evening.  No messages ...

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The system database was down this morning between 12:25am and 1:40am.  The pgpool proxy server failed on host mallo, which is the backup server but was acting at the time as the primary.  Failing over to the the usual primary server, carvel, restored services.  During this period services which rely upon the database ...

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Mailing List Issues

Some CS mailing list messages were not immediately archived over the weekend of April 29 - May 1.  A filled disk caused archiving of the messages to be delayed.  As we fixed the problem this evening, we inadvertantly caused many of those message to be re-sent, so some users may notice that they received duplicate messages ...