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cc-backend/ReleaseNotes.md

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cc-backend version 1.4.3

Supports job archive version 2 and database version 8.

This is a bug fix release of cc-backend, the API backend and frontend implementation of ClusterCockpit. For release specific notes visit the ClusterCockpit Documentation.

Breaking changes for minor release 1.4.x

  • You need to perform a database migration. Depending on your database size the migration might require several hours!
  • You need to adapt the cluster.json configuration files in the job-archive, add new required attributes to the metric list and after that edit ./job-archive/version.txt to version 2. Only metrics that have the footprint attribute set can be filtered and show up in the footprint UI and polar plot.
  • Continuous scrolling is default now in all job lists. You can change this back to paging globally, also every user can configure to use paging or continuous scrolling individually.
  • Tags have a scope now. Existing tags will get global scope in the database migration.

New features

  • Detailed Node List
    • Adds new routes /systems/list/$cluster and /systems/list/$cluster/$subcluster
    • Displays live, scoped metric data requested from the nodes indepenent of jobs
  • Color Blind Mode
    • Set on a per-user basis in options
    • Applies to plot data, plot background color, statsseries colors, roofline timescale
  • Job-View metric selection is now persisted based on the jobs subcluster. Helpful for heterogeneous subcluster configurations.
  • Histogram Bin Select in User-View
    • Metric-Histograms: 10 Bins now default, selectable options 20, 50, 100
    • Job-Duration-Histogram: 48h in 1h Bins now default, selectable options:
      • 60 minutes in 1 minute Bins
      • 12 hours in 10 minute Bins
      • 3 days in 6 hour Bins
      • 7 days in 12 hour Bins

Known issues

  • Currently energy footprint metrics of type energy are ignored for calculating total energy.
  • Resampling for running jobs only works with cc-metric-store
  • With energy footprint metrics of type power the unit is ignored and it is assumed the metric has the unit Watt.