chart_line
Plots events on an line chart.
chart_line x=field, y=any, [x_min=any, x_max=any, y_min=any, y_max=any, resolution=duration, fill=any, x_log=bool, y_log=bool, group=any]Description
Section titled “Description”Visualizes events with an line chart on the Tenzir Platform.
x = field
Section titled “x = field”Positions on the x-axis for each data point.
y = any
Section titled “y = any”Positions on the y-axis for each data point. Multiple data points for the same group can be be aggregated using an aggregation function.
Multiple y values and their labels can be specified by using the record
syntax: {name: value, ...}.
For example, y = {"Avg. Load": mean(load)} calculates the
mean of the load field and labels it as Avg. Load.
x_min = any (optional)
Section titled “x_min = any (optional)”If specified, only charts events where x >= x_min.
If resolution is specified, x_min is floored to create a full bucket.
x_max = any (optional)
Section titled “x_max = any (optional)”If specified, only charts events where x <= x_max.
If resolution is specified, x_max is ceiled to create a full bucket.
y_min = any (optional)
Section titled “y_min = any (optional)”If specified, any y values less than y_min will appear clipped out of the
chart.
y_max = any (optional)
Section titled “y_max = any (optional)”If specified, any y values greater than y_max will appear clipped out of the
chart.
resolution = duration (optional)
Section titled “resolution = duration (optional)”This option can be specified to create buckets of the given resolution on the
x-axis. An aggregation function must be specified to combine values in the same
bucket when resolution is specified.
For example, if the resolution is set to 15min, the x values are floored
to create buckets of 15 minutes. Any aggregations specified act on that bucket.
fill = any (optional)
Section titled “fill = any (optional)”Optional value to fill gaps and replace nulls with.
x_log = bool (optional)
Section titled “x_log = bool (optional)”If true, use a logarithmic scale for the x-axis.
Defaults to false.
y_log = bool (optional)
Section titled “y_log = bool (optional)”If true, use a logarithmic scale for the y-axis.
Defaults to false.
group = any (optional)
Section titled “group = any (optional)”Optional expression to group the aggregations with.
Examples
Section titled “Examples”Chart published events
Section titled “Chart published events”This pipeline charts number of events published by each pipeline over 30 minute intervals for the past 24 hours.
metrics "publish"chart_line x=timestamp, y=sum(events), x_min=now()-1d, group=pipeline_id, resolution=30min