Host Map

The Host Map panel displays host-level metrics in a color-coded grid layout. Use it to monitor CPU, memory, disk, or other resource utilization across multiple hosts at a glance.

Add a Host Map panel

  1. Open the dashboard where you want the panel.

  2. Click Add Panel.

  3. In Choose Visualization, select Host Map.

    Select Host Map Visualization

  4. Build your metric query in Graph your data.

  5. Enter a descriptive Title.

  6. Click Save to add the panel.

Build queries (Graph your data)

The Graph your data section defines which metrics are displayed and how they are processed before visualization. These steps apply to most panel types in Kloudfuse.

  1. Click Add Query to create a new query. Repeat to add multiple queries.

  2. Click Select a metric to choose the metric name you want to query.

  3. Use From to select the metric source or namespace.

  4. Click Add Label to filter results by label values (for example: pod=web, env=prod).

  5. Select an Aggregation (for example: min, max, sum, avg) to reduce raw samples to one value per time interval.

  6. Use the Select dropdown (if available) to set the aggregation interval (for example: 1m, 5m).

  7. Click Add Functions to apply transformations to your data.

    Common examples: * rate() — Convert counters to rates. * derivative() — Show the rate of change. * moving_avg() — Smooth short-term fluctuations. * scale() — Multiply values by a constant.

Query order determines formula identifiers: the first query = a, second = b, etc. Assign aliases to queries for more readable formulas.

Add formulas

Use formulas to create new series from existing queries.

  1. Click Add Formula in Graph your data.

  2. Reference queries by their letter (a, b, …) or alias.

  3. Enter your expression and click Apply.

Example — double a series:

2*a

Example — percentage change between two queries:

((a - b) / b) * 100

  • Use parentheses to control precedence: 2*(a + b) vs. 2*a + b.

  • If queries return different intervals, the formula engine aligns or interpolates values.

  • Add a Label so the formula appears meaningfully in the legend.

Host Map–specific settings

Once your metric is selected:

  • Metric — Choose the host-level metric to display, such as CPU usage, memory consumption, disk I/O, or network throughput.

  • Group by — Group data by host, cluster, availability_zone, or other relevant labels.

  • Color scheme — Map metric values to colors to highlight high/low usage.

  • Layout — Adjust grid spacing, tile size, and sorting to improve readability.

  • Value display — Show or hide numeric values on each tile.

  • Thresholds — Add color-based thresholds to signal warning or critical conditions.

Best practices

  • Use consistent grouping (e.g., always group by host) to keep dashboards predictable.

  • Keep tile counts reasonable — too many hosts in one panel may make patterns harder to spot.

  • Pair Host Map with detailed Timeseries or Top List panels for drill-down analysis.