InfluxDB v2.1 - Task executed but nothing wrote in destination bucket

Question

I'm working with InfluxDB v2.1.

I have this task:

option task = {
   name: "DOWNSAMPLE APRILIA UTILITIES",
   cron: "0 * * * *",
}

from(bucket: "homeassistant-aprilia")
   |> range(start: -2h, stop: -1h)
   |> filter(fn: (r) => r["_measurement"] == "kWh")
   |> filter(fn: (r) => r["_field"] == "value")
   |> filter(fn: (r) => r.entity_id == "shellyem_c45bbe5fed52_channel_1_energy")
   |> aggregateWindow(every: 1h, fn: max, createEmpty: false)
   |> difference()
   |> to(bucket: "downsample-utility-aprilia", org: "sineverba")

it being executed every hour but... it doesn't write anything in the destination bucket.

I have all success logs but nothing in my destination bucket.

If I launch the task directly in source bucket, I can see the value of my interest.

Other, if I don't omit the "to" value, manually launched from bucket it writes the data.

Why?

Answer 1

At the end, I solved with stop at now:

option task = {
    name: "DOWNSAMPLE APRILIA UTILITIES",
    cron: "0 * * * *",
}

option entity_id = "shellyem_c45bbe5fed52_channel_1_energy"

data = from(bucket: "homeassistant-aprilia")
    |> range(start: -2h, stop: now())
    |> filter(fn: (r) => r["_measurement"] == "kWh")
    |> filter(fn: (r) => r["_field"] == "value")
    |> filter(fn: (r) => r.entity_id == entity_id)
    |> aggregateWindow(every: 1h, fn: last, createEmpty: false)
    |> difference()
    |> to(bucket: "downsample-utilities-aprilia", org: "sineverba")