Then, I did a Transform in order to get an "entity-centric" view, the group by is based on the field "object".
I use this transform to get the duration of download for my objects, but also the error %.
The code above is a part of my transform (aggregations). I used the bucket script in order to calculate the duration (I just substract the min an max timestamp per object).
But now, I'm trying to use another bucket script, this time for the error %. But, the missing values (not every objects is 'failed' or 'succeeded') cause an error as shown above (Cannot invoke "Object.getClass()" because "leftObject" is null)
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