veneur-emit

command
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Published: Jun 28, 2018 License: MIT Imports: 20 Imported by: 0

README

veneur-emit is a command line utility for emitting metrics to Veneur.

Some common use cases:

  • Instrument shell scripts
  • Instrumenting shell-based tools like init scripts, startup scripts and more
  • Testing

Usage

Emitting a metric with veneur-emit:

$ veneur-emit -hostport udp://example.com:8125 -count 3 -name "my.test.metric" -tag "host:my.machine.local"

Full usage:

Usage of veneur-emit:
  -command
        Turns on command-timing mode. veneur-emit will grab everything after the first non-known-flag argument, time its execution, and report it as a timing metric.
  -count int
        Report a 'count' metric. Value must be an integer.
  -debug
        Turns on debug messages.
  -e_aggr_key string
        Add an aggregation key to group event with others with same key.
  -e_alert_type string
        Alert type must be 'error', 'warning', 'info', or 'success'. (default "info")
  -e_event_tags string
        Tag(s) for event, comma separated. Ex: 'service:airflow,host_type:qa'
  -e_hostname string
        Hostname for the event.
  -e_priority string
        Priority of event. Must be 'low' or 'normal'. (default "normal")
  -e_source_type string
        Add source type to the event.
  -e_text string
        Text of event. Insert line breaks with an esaped slash (\\n) *
  -e_time string
        Add timestamp to the event. Default is the current Unix epoch timestamp.
  -e_title string
        Title of event. Ex: 'An exception occurred' *
  -gauge float
        Report a 'gauge' metric. Value must be float64.
  -hostport string
        Address of destination (hostport or listening address URL).
  -indicator
        Mark the reported span as an indicator span
  -mode string
        Mode for veneur-emit. Must be one of: 'metric', 'event', 'sc'. (default "metric")
  -name string
        Name of metric to report. Ex: 'daemontools.service.starts'
  -parent_span_id int
        ID of the parent span.
  -sc_hostname string
        Add hostname to the event.
  -sc_msg string
        Message describing state of current state of service check.
  -sc_name string
        Service check name. *
  -sc_status string
        Integer corresponding to check status. (OK = 0, WARNING = 1, CRITICAL = 2, UNKNOWN = 3)*
  -sc_tags string
        Tag(s) for service check, comma separated. Ex: 'service:airflow,host_type:qa'
  -sc_time string
        Add timestamp to check. Default is current Unix epoch timestamp.
  -set string
        Report a 'set' metric with an arbitrary string value.
  -span_endtime string
        Date/time to set for the end of the span. Format is same as -span_starttime.
  -span_service string
        Service name to associate with the span. (default "veneur-emit")
  -span_starttime string
        Date/time to set for the start of the span. See https://github.com/araddon/dateparse#extended-example for formatting.
  -ssf
        Sends packets via SSF instead of StatsD. (https://github.com/stripe/veneur/blob/master/ssf/)
  -tag string
        Tag(s) for metric, comma separated. Ex: 'service:airflow'
  -timing duration
        Report a 'timing' metric. Value must be parseable by time.ParseDuration (https://golang.org/pkg/time/#ParseDuration).
  -trace_id int
        ID for the trace (top-level) span. Setting a trace ID activated tracing.

Veneur-emit supports two different backend modes: dogstatsd mode (the default) and SSF (-ssf) mode. In dogstatsd mode, veneur-emit can submit metrics, servie checks and events in dogstatsd format. In SSF mode, veneur-emit can emit trace spans and metrics to a veneur instance.

Dogstatsd mode

Increment a counter in dogstatsd mode:

veneur-emit -hostport udp://127.0.0.1:8200 -name that.metric.name -tag hi:there -count 1

Time a command in dogstatsd mode:

veneur-emit -hostport udp://127.0.0.1:8200 -name some.command.timer -tag purpose:demonstration -command sleep 30

Submit a service check in dogstatsd mode (this isn't supported in SSF yet):

veneur-emit -hostport udp://127.0.0.1:8200 -sc_name my.service.check -sc_msg "I'm not dead" -sc_status OK

Submit an event in dogstatsd mode (this isn't supported in SSF yet):

veneur-emit -hostport udp://127.0.0.1:8200 -e_text "Something went wrong:\\n\\nTell a lie, it's all good." -e_title "I'm just testing" -e_source_type "demonstration"

Submit a "set" metric (the count of unique values across a time interval):

veneur-emit -hostport udp://127.0.0.1:8200 -name some.set.metric -set customer_a

SSF mode

In SSF mode, veneur-emit will construct and submit an SSF span with optional metrics. SSF mode does not yet support events or service checks.

Increment a counter in SSF mode:

veneur-emit -ssf -hostport unix:///var/run/veneur/ssf.sock -name that.metric.name -tag hi:there -count 1

Time a command in SSF mode:

veneur-emit -ssf -hostport unix:///var/run/veneur/ssf.sock -name some.command.timer -tag purpose:demonstration -command sleep 30

Time a command in SSF mode and submit a trace span for the process (the -trace_id and -parent_span_id arguments need to be be set to the values from the parent of whatever is calling veneur-emit):

veneur-emit -ssf -hostport unix:///var/run/veneur/ssf.sock -span_service 'testing' -trace_id 99 -parent_span_id 9999 -name some.command.timer -tag purpose:demonstration -command sleep 30

Documentation

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