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From "Ash Berlin-Taylor (JIRA)" <>
Subject [jira] [Comment Edited] (AIRFLOW-930) Task Duration Visualization Regression
Date Fri, 20 Oct 2017 17:04:01 GMT


Ash Berlin-Taylor edited comment on AIRFLOW-930 at 10/20/17 5:03 PM:

No label on the Y axis is reported as AIRFLOW-1432 (for which I've just submitted a pull request..

was (Author: ashb):
No label on the Y axis is reported as AIRFLOW-1432.

> Task Duration Visualization Regression
> --------------------------------------
>                 Key: AIRFLOW-930
>                 URL:
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: ui
>    Affects Versions: 1.8.0
>            Reporter: Kevin Mandich
> I'm not sure if this is the right forum for this, but here goes:
> The charts in 1.8.0 seem like a major regression from the previous versions. Here are
are some issues i've identified, ranked by decreasing severity.
> * There is no label on the y-axis. When looking at the charts, I don't know what value
I'm looking at.
> * Markers on the data points were removed. This makes it hard to see actual run times
for tasks. It also removes the tremendous advantage of being able to quickly see when tasks
> * The "Hide All Series" and "Show All Series" buttons have been removed. This makes viewing
only a single task amongst many a very tedious process.
> * The default y-axis value is no longer 0, but instead the lowest value of the visible
data points. This is a visualization anti-pattern and can be misleading (e.g. a trace whose
y-values vary from 0.0091 to 0.0092 may appear to be increasing or decreasing with time, when
in reality it's basically staying the same)
> * When you first load the page, two charts are shown: Cumulative and Non-cumulative.
However, when you toggle the "Cumulative Duration" button, one of the charts disappears, and
you can now only switch between the two. What is the point of showing two separate charts
in the first place?
> * Gridlines aren't necessary, especially since you can mouse-over each data point to
find the value. These add unnecessary clutter and make it hard to distinguish the signal from
the noise.
> * A nitpick, but: why was the spline version of the charts removed? At the minimum it'd
be nice to switch back and forth between spline and raw forms.
> Most of these issues are also relevant to the Task Tries and Landing Times visualizations,
as well.

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