some prometheus agent are picky at the prometheus output format. this change to
make metric type is by the metric. The resulting output is showed as below
```
# TYPE pulsar_function__total_processed__sum gauge
pulsar_function__total_processed__sum{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_successfully_processed__count gauge
pulsar_function__total_successfully_processed__count{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_successfully_processed__max gauge
pulsar_function__total_successfully_processed__max{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_successfully_processed__min gauge
pulsar_function__total_successfully_processed__min{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_successfully_processed__sum gauge
pulsar_function__total_successfully_processed__sum{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_system_exceptions__count gauge
pulsar_function__total_system_exceptions__count{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_system_exceptions__max gauge
pulsar_function__total_system_exceptions__max{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_system_exceptions__min gauge
pulsar_function__total_system_exceptions__min{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_system_exceptions__sum gauge
pulsar_function__total_system_exceptions__sum{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_user_exceptions__count gauge
pulsar_function__total_user_exceptions__count{cluster="standalone",namespace="test/test-namespace",name="example",instanceId="0"}
0.0 1538351566227
# TYPE pulsar_function__total_user_exceptions__max gauge
```
[ Full content available at: https://github.com/apache/pulsar/pull/2686 ]
This message was relayed via gitbox.apache.org for [email protected]
