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Tracing docs (#371)

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KirillPamPam
2023-12-22 11:53:16 +04:00
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docs/06-monitoring.adoc
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@@ -177,3 +177,15 @@ ETHEREUM AVAILABLE
local-eth-1 OK with lag=0 local-eth-1 OK with lag=0
local-eth-2 OK with lag=0 local-eth-2 OK with lag=0
---- ----
== Tracing
Dshackle provides an option to send spans to the DRPC tracing system to see the detailed path of a request and investigate some problems.
By default, this feature is turned off. To turn it on set the env variable `ENABLE_COLLECT_SPANS` to `true`.
Dshackle sends spans for a request:
- which has completed with an error
- which has at least one long span. Threshold to assume that a span is long is 1000 milliseconds by default, and you can control this value by passing the env variable `LONG_SPAN_THRESHOLD` in milliseconds. If you pass 0 it means that spans for all requests will be sent to the tracing system.