Histogram Metric Not Showing Data in Buckets

[antonmithun-work]

I'm trying to record a histogram metric in SigNoz using OpenTelemetry in Rust. Here's how I'm measuring and recording execution time for a function:
let hist = meter .f64_histogram("test_hist") .with_description("Time taken") .with_unit("ms") .build(); let start_time = Instant::now(); //do_somthing let elapsed_time = start_time.elapsed().as_secs_f64() * 1000.0; hist.record(elapsed_time, &[]);

In the SigNoz dashboard, I see my histogram metric in the dropdown when creating a panel, but it appears as three different metrics:
hist_count
hist_sum
hist_bucket
However, when I select hist_bucket, it shows no data. and I am struggling to understand the plot if I select other two.
What is the correct metric to use to properly visualize the histogram distribution? Do I need to configure anything else to see histogram buckets properly?
thanks

[antonmithun-work]

Can someone help explain this? I'm not sure how to verify my exported data.
The test data exported from my histogram includes values 1200 and 3000.
I have set the following histogram boundaries in my Rust code:

vec![
    500.0, 1000.0, 1500.0, 2000.0, 2500.0, 3000.0, 3500.0, 4000.0, 4500.0, 5000.0
]

Here is the relevant Rust code I used to create the histogram:

meter
    .u64_histogram("function_execution_time-2")
    .with_description("Time taken to execute a function")
    .with_boundaries(vec![
        500.0, 1000.0, 1500.0, 2000.0, 2500.0, 3000.0, 3500.0, 4000.0, 4500.0, 5000.0
    ])
    .with_unit("ms")
    .build()

To check if the values are being recorded, I ran the following Clickhouse query:

SELECT value
FROM signoz_metrics.distributed_samples_v4
WHERE metric_name = 'function_execution_time_2_bucket'
LIMIT 10

The query returns a value of 1, but I’m not sure what this means.
Also, I see a 2950 value on the histogram panel, which I don't understand. Can someone explain what the 2950 value represents?