Known issues

Unresolved known issues

Known issue with an Unresolved Resolution state is an active problem under investigation; a temporary workaround may be available.

Resolved known issues

A known issue with a Resolved (workaround) Resolution state is an ongoing problem; a permanent workaround is available which may include using different software or hardware.

A known issue with Resolved Resolution state has been corrected.

Known Issues

Title Category Resolutionsort ascending Description Posted Updated
Scratch filesystem Errors on October 1st, 2019 filesystem Resolved

Updated on 12:40 PM Oct 1st, 2019: 

OSC had experienced an unexpected problem with the Scratch filesystem that gives errors "No space left on device" on all clusters since...

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7 years 1 week ago 7 years 1 week ago
Some issues remain after downtime Login Problems, Operations, Outage Resolved

15 July 2016, 5:00PM update: some additional issues we are facing

  • We are experiencing periodic hangs of the GPFS client file system software used with the new storage environment. ...
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10 years 2 months ago 9 years 2 weeks ago
Rolling reboot of Ascend, Owens and Pitzer starting from Oct 25 2023 Owens, Pitzer Resolved

Update on Nov 8 2023:

Rolling reboots of all clusters are completed. 

Update on Nov 3 2023:

Rolling reboots of Ascend and Pitzer clusters...

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2 years 11 months ago 2 years 11 months ago
Login problem Resolved

Around 10am EDT, OSC began to experience problems with our infrastructure.  Login sessions began to be affected around 11:30 EDT. The problem was resolved around 1pm EDT, and all systems have...

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2 years 5 months ago 2 years 5 months ago
Rolling Reboot for Security Fix Resolved

A rolling reboot is in progress to address CVE-2026-23111 (nf_tables logic bug) for all clusters, including Ascend, Cardinal, and Pitzer. Login nodes will be rebooted first and access...

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3 months 3 weeks ago 3 months 2 weeks ago
OnDemand experiencing difficulties Web Services Resolved

OnDemand is experiencing some difficulties that may be related to the changes from the downtime. We are aware of these problems and are working on resolving them. We appreciate your patience.

12 years 7 months ago 12 years 7 months ago
Cannot use mpiexec/mpirun from OpenMPI in an interactive session Owens, Pitzer, Software Resolved
(workaround)

We found mpiexec/mpirun from OpenMPI can not be used in an interactive session (launched by sinteractive) after upgrading Pitzer and...

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5 years 7 months ago 1 year 3 months ago
Rolling reboot of all clusters, starting from 8 AM Tuesday, June 19, 2018 Batch, Owens, Ruby Resolved

Posted on June 12, 2018, at 4:40 PM:

We will have rolling reboots of three clusters (Owens, Ruby, and Oakley) including login and compute nodes, starting from 8 AM Tuesday...

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8 years 3 months ago 8 years 3 months ago
MPI-IO issues on home directories with Intel MPI 2019.3 Pitzer, Software Resolved
(workaround)

Certain MPI-IO operations with intelmpi/2019.3 may crash, fail or proceed with errors on the home directory. We do not expect the same issue on our GPFS file system, such as the...

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1 year 4 months ago 1 year 4 months ago
Intermittent DNS issues Resolved

3/9/15 Update: The DNS issues have been resolved.  In total, the following services may have been affected by the DNS issues:

  • Logging in / Connecting out to...
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11 years 7 months ago 11 years 7 months ago

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