Override of 'now' for systems with lagged data feeds

[boutcher]

For systems that load data in batches (let's say, every 5 minutes), it's useful to have the concept/selector for 'now' to be now-Xminutes.

This way, there won't be a drop to 0 of all charts and graphs that are up to current time.

I'm not sure at what level this should be configured... Index level?

[rashidkpc]

You would definitely want this on the index level. This would require the date math parser to have knowledge of the index pattern which it doesn't currently. What happens if 2 indices on the same dashboard have different offsets? What do you put on the right edge of the chart? Is it the actual "now"? Each individual index's offset "now"? The latter would mean you've have 2 bars in the same place that actually reference different times.

I can see the use here. There's a lot of edge cases that would need to be explored to make this feasible.

[tbragin]

Looks like there is another ticket related to the same ask with more discussion, so i will move comments there and close this as a dup:
#2394