• Created by Unknown User (pdomagala), last modified on Apr 19, 2017

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Upcoming Scheduled Maintenance

(All times are Project Time (Pacific))

StartEndWhat is happening?Location

Planned Activities

Systems/services that will NOT be available

2017-04-20 (04:30)

2017-04-20 (09:30)

LSST monthly maintenance

NCSA

This event is cancelled so as not to interfere with Early Integration Activity #03 being held at NCSA April 19 & 20.


2017-05-18 (06:00)

2017-05-18 (08:00)

LSST monthly maintenance

NCSA
  • Kernel upgrades and reboots in the LSST dev environment
  • Permanently unmount the old NFS home filesystem. This will complete the decommissioning of the NFS home filesystem.†
  • Install of Unbound local caching resolver software as recommended by NCSA Security


All LSST-dev resources







† Users that still need to migrate data must do so before midnight May 17th.

Previous Outages & Events

StartEndWhat happened?LocationWhat was affected?Outcome

2017-04-17 (13:41)

2017-04-17 (13:53)

Unplanned

lsst-dev login node down

NCSA

Users unable to log in to lsst-dev.

Probable cause is that the root file system filled up due to excessive logging

Fixed
2017-03-27 (22:00)2017-03-29 (14:00)Blue Waters maintenanceNCSA

Due to maintenance of cooling infrastructure at NPCF, Blue Waters will down during this period. Cray will also take this maintenance window to perform some system updates at the same time.

Systems that will be down

  • Slurm cluster compute nodes will be powered down for the duration of the outage.

Systems that will remain up

Qserv nodes ( lsst-qserv-* ), SUI nodes ( lsst-sui-* ), Bastion node ( lsst-bastion01 ) should remain online during the outage.  

However, if temperatures in the NPCF rise too high, we will be forced to shut these down as well. I've been told that this is a low-probability scenario and we will be given time to do graceful shutdowns. In the unlikely event that this happens, it will be communicated through the DM Slack channel and also posted here.

All systems normal

2017-03-23 (0800)

2017-03-23 (1300)

NCSA Nebula OutageNCSANebula will take an outage to balance and build a more stable setup for the file system. This will require a pause of all instances, and Horizon being unavailable.

Nebula is back to normal.

2017-03-16 (0430)2017-03-16 (0930)LSST monthly maintenanceNCSAGPFS filesystems will go offline for entire duration of outages. Some systems may be rebooted, especially those that mount one or more of the GPFS filesystems.
2017-02-22 14152017-02-22 (1615)Nebula Gluster IssuesNCSAAll Nebula instances paused while gluster repairedNebula is available.
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