Max/min aggregation on timelion produces random roundings

Elastic Stack Kibana
1

Hi,

I am using timelion to retrieve and max and min "Time" values from subbuckets that I am creating. To keep it simple I am creating buckets with 2 log entries in it. When I compute the min/max of a "number" field the value that I see on timelion is different from the value that I see on the log entry.

field that I am trying to aggregate on

LogEntry 1 : has the value "param.Time : 1931838479.51886"
LogEntry 2 : has the value "param.Time : 1931838518.69142"

I would expect the "metric:max:param.Time" for these two logs in a bucket to produce 1931838480. However I see a value 1931838464

I have tried computing this across different buckets and I dont see a pattern of the values ( when compared to the expected value ).

Any help/pointers in this regard will be very helpful.

Regards

2

To add to this query, when I use a "date" type field on the exact same log buckets I get the correct value. Its only with "number" type field that I see this random rounding issue.

3

Hello,

It looks like there's an open issue to add some clarity around the precision of Timelion values here. Would you be willing to comment on this issue?

Regards,
Aaron

4

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