TSGET
Synopsis
TSGET key timestamp
This command fetches the value for the given timestamp
in the time series that is specified by the
given key
.
- If the given
key
ortimestamp
does not exist, nil is returned. - If the given
key
is associated with non-time series data, an error is raised. - If the given
timestamp
is not a valid signed 64 bit integer, an error is raised.
Return value
Returns the value for the given timestamp
.
Examples
The timestamp can be arbitrary integers used just for sorting values in a certain order.
$ TSADD cpu_usage 10 "70"
"OK"
$ TSADD cpu_usage 20 "80" 30 "60" 40 "90"
"OK"
We could also encode the timestamp as “yyyymmddhhmm”, since this would still produce integers that are sortable by the actual timestamp.
$ TSADD cpu_usage 201710311100 "50"
"OK"
A more common option would be to specify the timestamp as the unix timestamp.
$ TSADD cpu_usage 1509474505 "75"
"OK"
$ TSGET cpu_usage 10
"70"
$ TSGET cpu_usage 100
(nil)
$ TSGET cpu_usage 201710311100
"50"
$ TSGET cpu_usage 1509474505
"75"
An error is returned when the timestamp is not an int64.
$ TSGET cpu_usage xyz
(error) Request was unable to be processed from server.
See also
tsadd
, tsrem
, tsrangebytime
,
tsrevrangebytime
, tslastn
, tscard