Monitoring - Users should now be able to login to HPC again. Jobs should not have been affected by this outage, though we encourage you to double-check.
We'll be keeping an eye on the server in case the issue repeats, and update this page accordingly.
Sep 14, 2026 - 09:19 CDT
We'll be keeping an eye on the server in case the issue repeats, and update this page accordingly.
Sep 14, 2026 - 09:19 CDT
Investigating - Multiple user reports of being unable to login to the HPC system at spark-login.chtc.wisc.edu.
We are investigating the issue.
Sep 14, 2026 - 08:49 CDT
We are investigating the issue.
Sep 14, 2026 - 08:49 CDT
About This Site
This page provides information about unplanned downtimes and scheduled maintenance for services offered by the Center for High Throughput Computing
High Throughput Computing (HTC) System
Operational
Access Points
Operational
CHTC Pool
Operational
External Pools (OSPool, Campus HTCondor Pools)
Operational
Staging and Projects Space
Operational
File Transfers
Operational
High Performance Computing (HPC) System
Operational
Login Nodes
Operational
Cluster Nodes and Jobs
Operational
Central Software Installations
Operational
Home and Scratch File Systems
Operational
Data Transfer Tools
Operational
Globus Endpoint
Operational
Transfer server
Operational
BadgerCompute
Operational
BadgerCompute
Operational
CHTC Internal Infrastructure
Operational
Tiger Cluster
Operational
RT Email/Ticket Support System
Operational
User App
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.