[1] In below example , trying to get last ~24.5 days of metrics from particular tenant , But I can see 2019-01-26 data . With UTC_START_TIME “2019-02-01T00:00:00Z”____
Hi Mohankumar, the problem occurs when the period is (almost) >= then the evaluated dataset. Try moving the start point earlier in the past (e.g. one month before) or decrease the period and you'll get correct results. It might be a bug in InfluxDB.
[2] does *--merge_metrics ***not**Merge multiple metrics into a single result ?____
`merge_metrics` can be understood as wildcarding on dimensions. Please note that in combination with `group_by` it has no effect. Please compare these examples: # monasca metric-statistics --merge_metrics disk.space_used_perc avg,max,min -2 Will result in just one value for all metrics with any combination of dimensions. # monasca metric-statistics --group_by mount_point,device disk.space_used_perc avg,max,min -2 Will result in one value for every unique combination of metric name and `mount_point`, `device` dimension values. I hope it helps, Witek