Haystack

To enable the Haystack tracer:

File (YAML)

tracing:
  haystack: {}

File (TOML)

[tracing]
  [tracing.haystack]

CLI

--tracing.haystack=true

localAgentHost

Required, Default="127.0.0.1"

Local Agent Host instructs reporter to send spans to the Haystack Agent at this address.

File (YAML)

tracing:
  haystack:
    localAgentHost: 127.0.0.1

File (TOML)

[tracing]
  [tracing.haystack]
    localAgentHost = "127.0.0.1"

CLI

--tracing.haystack.localAgentHost=127.0.0.1

localAgentPort

Required, Default=35000

Local Agent Port instructs reporter to send spans to the Haystack Agent at this port.

File (YAML)

tracing:
  haystack:
    localAgentPort: 35000

File (TOML)

[tracing]
  [tracing.haystack]
    localAgentPort = 35000

CLI

--tracing.haystack.localAgentPort=35000

globalTag

Optional, Default=empty

Applies shared key:value tag on all spans.

File (YAML)

tracing:
  haystack:
    globalTag: sample:test

File (TOML)

[tracing]
  [tracing.haystack]
    globalTag = "sample:test"

CLI

--tracing.haystack.globalTag=sample:test

traceIDHeaderName

Optional, Default=empty

Sets the header name used to store the trace ID.

File (YAML)

tracing:
  haystack:
    traceIDHeaderName: Trace-ID

File (TOML)

[tracing]
  [tracing.haystack]
    traceIDHeaderName = "Trace-ID"

CLI

--tracing.haystack.traceIDHeaderName=Trace-ID

parentIDHeaderName

Optional, Default=empty

Sets the header name used to store the parent ID.

File (YAML)

tracing:
  haystack:
    parentIDHeaderName: Parent-Message-ID

File (TOML)

[tracing]
  [tracing.haystack]
    parentIDHeaderName = "Parent-Message-ID"

CLI

--tracing.haystack.parentIDHeaderName=Parent-Message-ID

spanIDHeaderName

Optional, Default=empty

Sets the header name used to store the span ID.

File (YAML)

tracing:
  haystack:
    spanIDHeaderName: Message-ID

File (TOML)

[tracing]
  [tracing.haystack]
    spanIDHeaderName = "Message-ID"

CLI

--tracing.haystack.spanIDHeaderName=Message-ID

baggagePrefixHeaderName

Optional, Default=empty

Sets the header name prefix used to store baggage items in a map.

File (YAML)

tracing:
  haystack:
    baggagePrefixHeaderName: "sample"

File (TOML)

[tracing]
  [tracing.haystack]
    baggagePrefixHeaderName = "sample"

CLI

--tracing.haystack.baggagePrefixHeaderName=sample