scipp/esslivedata

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Live data reduction visualisation for ESS

Stars: 3
Forks: 4
Open beginner issues: 0
Indexed issues: 77
Avg merge: 1d 3h
Merged PRs (30d): 40

Dominant language: Python
License: BSD-3-Clause
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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77 open issues indexed

BIFROST: feed the tank angle to Q-maps through a single route Open

area:workflows

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#1318 · Opened Sep 17, 2026
Batcher window jumps weeks back when detector traffic stops and a static PV remains; results go back in time and break dashboard window plots Open

area:backend bug

scipp/esslivedata#1313 · 1 assignee · Opened Sep 14, 2026
A chopper at 0 Hz blanks the lookup table downstream, and we have not decided whether it should Open

area:workflows design

Difficulty 5/5 Over a week Newbie friendliness 30/100

scipp/esslivedata#1312 · Opened Sep 11, 2026
DREAM overlap chopper is not phase-locked to the source, so no wavelength LUT exists Open

area:workflows

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/esslivedata#1309 · 1 comment · Opened Sep 10, 2026
Accumulate detector view histograms in int32 once scipp promotes integer reductions Open

area:backend performance upstream

Difficulty 5/5 Over a week Newbie friendliness 30/100

scipp/esslivedata#1293 · Opened Sep 7, 2026
Dedicated backend instance for NICOS: scan scripts configure and start scan-feedback workflows Open

area:backend design

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/esslivedata#1285 · Opened Sep 3, 2026
Active-window batcher residency is unbounded and escalation multiplies it Open

area:backend design performance

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#1275 · 1 comment · Opened Sep 1, 2026
Bound total dashboard buffer memory and decouple history retention from plot topology Open

area:dashboard design performance

Difficulty 5/5 Over a week Newbie friendliness 42/100

scipp/esslivedata#1274 · Opened Sep 1, 2026
BEER: bank views fold 12 million pixels per update, independent of event rate Open

area:workflows performance

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/esslivedata#1272 · 2 comments · Opened Sep 1, 2026
Commands fan out per source, then reassemble N acks by count Open

area:wire design

Difficulty 5/5 Over a week Newbie friendliness 30/100

scipp/esslivedata#1268 · Opened Aug 31, 2026
detector_data leaks ~60 MB per cycle in uncollected reference cycles from sciline graph updates, OOM-killing the service Open

area:backend bug upstream

scipp/esslivedata#1264 · 1 comment · 1 assignee · Opened Aug 28, 2026
Clear consumers when the streamed lookup table's identity changes Open

area:workflows

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#1248 · Opened Aug 21, 2026
Drop the #6988 teardown-ordering caveat once holoviews ships the fix Open

area:dashboard upstream

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/esslivedata#1244 · Opened Aug 20, 2026
counts_total is the histogram sum, so a plot's TOA/wavelength edges silently change a NICOS device reading Open

area:workflows design

Difficulty 4/5 3-5 days Newbie friendliness 38/100

scipp/esslivedata#1242 · Opened Aug 20, 2026
Per-plot WebGL opt-in: what it would take, and why a size threshold is the wrong trigger Open

area:dashboard design performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/esslivedata#1218 · Opened Aug 7, 2026
Memoize HoloViews option lookups for the duration of one render Open

area:dashboard enhancement performance

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#1215 · Opened Aug 6, 2026
Revisit batched_update() if Bokeh's freeze gains a conditional recompute Open

area:dashboard enhancement performance upstream

Difficulty 5/5 Over a week Newbie friendliness 15/100

scipp/esslivedata#1211 · Opened Aug 6, 2026
Drop LivedataDesign once Panel fixes the markup-pane reveal Open

area:dashboard upstream

Difficulty 3/5 1-2 days Newbie friendliness 42/100

scipp/esslivedata#1175 · Opened Aug 4, 2026
Adopt bokeh 4.x when available: removes most of Target 1 client CPU cost (blocked upstream) Open

area:dashboard performance upstream

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scipp/esslivedata#1156 · Opened Jul 30, 2026
Client model graph grows on every plot-cell rebuild: two upstream BokehJS leaks Open

area:dashboard bug performance upstream

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/esslivedata#1155 · 1 comment · Opened Jul 30, 2026
Timeseries downsampling destroys the peaks of a cumulative sawtooth Open

area:dashboard bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#1153 · Opened Jul 29, 2026
Serve the dashboard in-process for browser tests that need server introspection Open

area:dashboard enhancement

Difficulty 5/5 Over a week Newbie friendliness 38/100

scipp/esslivedata#1147 · Opened Jul 28, 2026
Device clock skew: a creeping device silently becomes the service's data clock Open

area:backend design

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/esslivedata#1133 · Opened Jul 27, 2026
Quiet-stream trailing batch: may wall time ever close it? Open

area:backend design

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#1129 · Opened Jul 27, 2026
Extraction-path efficiency under pull-on-frame: incremental window aggregation, copy elision Open

area:dashboard performance

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#1101 · Opened Jul 21, 2026
Correlation histogram per-second normalization produces NaN on the first sample and misattributes time intervals Open

area:dashboard bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

scipp/esslivedata#1077 · Opened Jul 21, 2026
Dedicated result-data schema could cut da00 encode/decode times by 3-5x Open

area:wire design performance

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#1057 · 5 comments · Opened Jul 7, 2026
Dashboard performance: profiled bottlenecks and ranked fix targets (tab switching, plot creation, idle CPU) Open

area:dashboard performance tracking

Difficulty 5/5 Over a week Newbie friendliness 42/100

scipp/esslivedata#1055 · 2 comments · Opened Jul 6, 2026
Extend the hostile-wire liveness harness to more services, batchers, and corruption modes Open

area:backend enhancement

Difficulty 5/5 Over a week Newbie friendliness 38/100

scipp/esslivedata#1054 · Opened Jul 6, 2026
NICOS derived devices (ADR 0006): go-silent semantics depend on deferred liveness; cumulative eligibility is unenforced Open

area:backend design

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#1051 · Opened Jul 5, 2026
Aux stream-name keying (ADR 0004): duplicate role selections and ingress/render drift fail silently Open

area:backend design

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#1050 · Opened Jul 5, 2026
Device synthesis + context gating: a single dead substream can black out detector views with no degraded mode Open

area:backend design

Difficulty 5/5 Over a week Newbie friendliness 28/100

scipp/esslivedata#1049 · Opened Jul 5, 2026
Message-related bugs in backend for triage Open

area:backend tracking

scipp/esslivedata#1038 · 1 comment · 1 assignee · Opened Jul 2, 2026
Bugs in backend for triage Open

area:backend tracking

scipp/esslivedata#1037 · 4 comments · 1 assignee · Opened Jul 2, 2026
Add a shared glossary for recurring ESS/instrument jargon in the dashboard Open

area:dashboard documentation

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#1019 · Opened Jun 26, 2026
Source position keyed off NXsource ignores NXmoderator (origin-pinned accelerator trap) Open

area:workflows bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#989 · 1 comment · Opened Jun 19, 2026
Color collision when layering multiple 1D line+error plotters Open

area:dashboard bug

Difficulty 3/5 1-2 days Newbie friendliness 62/100

scipp/esslivedata#982 · Opened Jun 18, 2026
Add chopper acceptance diagram Open

area:workflows enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#969 · Opened Jun 10, 2026
Robust accumulator reset against noisy motor readback (setpoint-driven transform) Open

area:backend enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/esslivedata#965 · Opened Jun 9, 2026
BIFROST: unpin detector geometry once a corrected NeXus file is available Open

area:workflows

Difficulty 3/5 1-2 days Newbie friendliness 52/100

scipp/esslivedata#962 · 2 comments · Opened Jun 8, 2026
Display derived aggregation mode in plot toolbar in window mode Open

area:dashboard enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/esslivedata#934 · Opened May 13, 2026
Histogram (window mode) does not refresh when there are no events in the monitor Open

area:dashboard bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scipp/esslivedata#933 · 4 comments · Opened May 13, 2026
[ESTIA] Normalization by reference measurement Open

area:workflows enhancement

Difficulty 3/5 1-2 days Newbie friendliness 52/100

scipp/esslivedata#913 · Opened May 4, 2026
Dashboard Docker image installs unused instrument extras Open

area:deployment

Difficulty 3/5 1-2 days Newbie friendliness 72/100

scipp/esslivedata#906 · Opened Apr 30, 2026
Re-enable filewriter topic subscription for run control Open

area:backend

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/esslivedata#892 · Opened Apr 24, 2026
Discussion: unified workflow-spec surface across ESS data pipelines and UIs Open

area:wire design

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/esslivedata#890 · 2 comments · Opened Apr 23, 2026
Rethink workflow registration: move schema ownership to domain packages Open

area:backend design

scipp/esslivedata#889 · 3 comments · 1 assignee · Opened Apr 22, 2026
Exception in dashboard when plotting monitor stream Open

area:dashboard bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

scipp/esslivedata#878 · Opened Apr 17, 2026
Overlay silently mixes elements with different coordinate or value units Open

area:dashboard bug

scipp/esslivedata#870 · 1 comment · 1 assignee · Opened Apr 14, 2026
Detect crashed workers via heartbeat staleness? Open

area:backend design

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/esslivedata#859 · Opened Apr 10, 2026

scipp/esslivedata

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