Hi Brian,
Thanks very much for your quick response.
The result of com_nokia_neo_metrics_subscriber_counter_perfsdb_total as
below. There are 6 Elements including action=ent/rtrv.
ElementValue
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="ent",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-765728571",type="subscriber_counter_perFsdb"}
1
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^comNtas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-623073749",type="subscriber_counter_perFsdb"}
1
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^comntas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="1667709291",type="subscriber_counter_perFsdb"}
4
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^reinaNtas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="1690729883",type="subscriber_counter_perFsdb"}
3
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="866673650",type="subscriber_counter_perFsdb"}
10
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Unspecified",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-196785181",type="subscriber_counter_perFsdb"}
1
Since there is no dlt action in above elements, I do action=dlt ONE TIME
and element action=dlt is displayed as below the first one and the value is
1:
ElementValue
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="dlt",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-1916054270",type="subscriber_counter_perFsdb"}
1
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="ent",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-765728571",type="subscriber_counter_perFsdb"}
1
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^comNtas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-623073749",type="subscriber_counter_perFsdb"}
1
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^comntas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="1667709291",type="subscriber_counter_perFsdb"}
4
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^reinaNtas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="1690729883",type="subscriber_counter_perFsdb"}
3
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="866673650",type="subscriber_counter_perFsdb"}
10
com_nokia_neo_metrics_subscriber_counter_perfsdb_total{action="rtrv",instance="localhost:9620",job="provision",key="Unspecified",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-196785181",type="subscriber_counter_perFsdb"}
1
then I run
"delta(com_nokia_neo_metrics_subscriber_counter_perfsdb_total[5m])" , the
result is 0. I think it is 1.
ElementValue
{action="dlt",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-1916054270",type="subscriber_counter_perFsdb"}
0
{action="ent",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-765728571",type="subscriber_counter_perFsdb"}
0
{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^comNtas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-623073749",type="subscriber_counter_perFsdb"}
0
{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^comntas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="1667709291",type="subscriber_counter_perFsdb"}
0
{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^reinaNtas^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="1690729883",type="subscriber_counter_perFsdb"}
0
{action="rtrv",instance="localhost:9620",job="provision",key="Fs2System^Fs2System^Fs2Switch^utas3^Fs2Fsdb^fsdb0",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="866673650",type="subscriber_counter_perFsdb"}
0
{action="rtrv",instance="localhost:9620",job="provision",key="Unspecified",key_mbean_attribute_name="Value",key_mbean_domain_name="com.nokia.neo.metrics",kind="counter",result="fail",tags_checksum="-196785181",type="subscriber_counter_perFsdb"}
0
The delta is for calculating the difference between the first and last
value of each time series element.
The value for the start for action=dlt is 0.
The value for the end for action=dlt is 1.
so the delta()[5m] is 1. right ?
thanks
在 2020年4月29日星期三 UTC+8下午6:17:08，Brian Candler写道：
>
> Can you show the result of
> com_nokia_neo_metrics_subscriber_counter_perfsdb_total, without the delta()
> wrapper, using query_range
> <https://prometheus.io/docs/prometheus/latest/querying/api/#range-queries>
> over
> the 5 minute window in question?
>
> delta()[5m] shows the difference between the first and last values in the
> time window(*). So if the value at the start of the window is 1, and the
> value at the end is 1, then delta() will correctly return zero.
>
> (*) actually it's extrapolated from the first and last point within the
> window, to the values it would have had at the very start and very end of
> the window. For details:
> https://prometheus.io/docs/prometheus/latest/querying/functions/#delta
> <https://www.google.com/url?q=https%3A%2F%2Fprometheus.io%2Fdocs%2Fprometheus%2Flatest%2Fquerying%2Ffunctions%2F%23delta&sa=D&sntz=1&usg=AFQjCNEDyo0ngYNJFqUwF5qrYauUpaFFgw>
>
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