I'm using the winhostmon collection and I want to chart disk space usage over time. I have the collection set up to run once a day. The issue is that if splunk is restarted at any time, the collection runs again, producing more than one event per day and that skews the total per day. I've tried to limit the maxevents=1, but that doesn't seem to fix the problem and I'd prefer not to dedup based on host+Name+date. Is there a better way?
The dedup on host / date works.
another method is to get rid of the transaction and use a less costly stats with the function first() (firs is counter intuitive, means the last value of the period, as splunk search backward in time)
| bucket _time span=1d
| stats first(TotalSpaceKB) AS TotalSpaceKB
first(FreeSpaceKB) AS FreeSpaceKB
by host _time
| eval gbtotal=(TotalSpaceKB/1024/1024/1024)
| eval gbfree=(FreeSpaceKB/1024/1024/1024)
| eval gbused=((TotalSpaceKB-FreeSpaceKB)/1024/1024/1024)
| timechart span=1d sum(gbtotal) as TotalSpaceTB, sum(gbfree) as TotalFreeTB