Hathi
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Diminished network connectivity to research computing resources
Due to a network issue at the Indiana GigaPOP, connectivity to RCAC resources from off campus is intermittent. Access to the research computing web site, Globus, Thinlinc, or other research computing resources may be impacted. To work around this iss...
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Important Operating System Updates - Hathi Hadoop Cluster
On the morning of Tuesday, February 3, 2015, Hathi login nodes will be rebooted to apply an important Red Hat Linux operating system update.
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Hathi Hadoop cluster planned outage
The Hathi Hadoop cluster will be unavailable Monday, 13 April, 2015 from 9:00 am to 1:00 pm. During that time, the cluster hardware will be upgraded with new network interfaces. The cluster will go offline at 9:00 am, and we expect the work to be com...
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The Hammer, Hathi, Radon, and Snyder cluster will be unavailable beginning at Wednesday, July 1, 2015 from 8:00am - 12:00pm EDT, for scheduled maintenance. The cluster will return to full production by Wednesday, July 1st, 2015 at 12:00pm EDT. The do...
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Unscheduled Home Filesystem Outage
As of 12:46, December 2, the home filesystem serving Conte, Hammer, Hansen, Hathi, Peregrine1, Radon, Rice, and Snyder was restored to normal operation. All queues have been re-enabled. As of Wednesday, December 2nd, 2015 at 12:00pm EST, Conte, Hamm...
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Hathi & WinHPC Power Maintenance
The Hathi and WinHPC clusters will be unavailable beginning at Thursday, February 4th, 2016 at 6:00am EST, for scheduled maintenance to the power feed. Both clusters will return to full production by Thursday, February 4th, 2016 at 5:00pm EST. During...
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Environment Modules System Upgrade
On Monday, May 9, 2016 the environment module system on Carter, Conte, Hansen, and Hathi will be upgraded to Lmod, bringing all compute clusters up to the same environment modules system. This new system has been in use on the Rice and Snyder cluster...
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The Isilon filesystem was restored to normal service and all affected clusters had it remounted as quickly as was sustainable by the filesystem. This process was completed by Wednesday, May 18th, 2016 at 12:15am EDT. All clusters other than Conte (...
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An issue was discovered shortly after Conte, Hansen, Hathi, and Radon were brought back online with the /group path on several front-ends and nodes. Any scripts or jobs that rely on the /group path may have had issues immediately following return to...
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The underlying storage has been fixed, and all these clusters have been returned to normal operations as of 10:00pm EDT. As of Tuesday, June 7th, 2016 at 4:10pm EDT, Conte, Hansen, Hathi, and Radon are unavailable due to a loss of Isilon home direct...
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Degraded performance of several systems
We have seen a significant wave of these events this morning, September 21. For the most part, this wave seems to have been linked to a storage problem that has been resolved. However, we are implementing new monitoring and response procedures toda...
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Home Filesystem Maintenance - All Clusters
Conte has been returned to normal operations as well now. This concludes the home directory maintenance on all systems. Update: September 27, 2016 11:55pm All systems other than Conte have been successfully returned to normal operations with the ne...
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The Carter Cluster was returned to production at 10:45pm on November 7. We apologize for this extended outage. Update: November 7, 2016 6:01pm Work on reinstalling the Carter nodes continues. All other systems have returned normal operations. We...
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Clusters to switch to hierarchical modules
Carter, Conte, Hammer, Hathi, Rice, Scholar, and Snyder have been converted to hierarchical modules. All front-ends have been converted, and nodes will update over the next couple of hours. Running jobs will not be impacted by this change. If you hav...
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Conte and Hathi Cluster Maintenance
The Conte and Hathi clusters have been updated and returned to full production. This is a gentle reminder that the Conte and Hathi clusters will be undergoing a scheduled maintenance beginning at Tuesday, February 21st, 2017 at 8:00am EST. Please sa...
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Clusters to complete transition to hierarchy modules
The transition to hierarchy modules has completed today, May 9th. If any of your job scripts still have old module names the module load will no longer work so be sure to double check your PBS job scripts and output for any old module names. We have...
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A failure has occurred in the systems which serve Data Depot to the various research clusters. Engineers are currently diagnosing the issue and are working to identify a fix. Job scheduling has been paused on all systems while this issue is being add...
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The Hathi cluster has been taken down for emergency maintenance to address a security issue. Engineers are investigating the situation now and we will update this as we are able to determine a return to service.
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Access to Data Depot from the Halstead, HalsteadGPU, Hathi, Rice, Scholar, and Snyder clusters has hung starting around Thursday, September 7th, 2017 at 1:30pm EDT. Engineers are currently working to restore service to these systems. Job scheduling h...
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Radon, Hathi, and WSC Hadoop Cluster Maintenance
The Hathi, Radon, and WSC Hadoop clusters will be unavailable beginning at Friday, November 3rd, 2017 at 5:00pm EDT, for scheduled electrical power maintenance. The clusters will return to full production by %enddatetime%. During this time, some of t...