8000 Sessions without a parent trace might not work? · Issue #5 · r-lib/otel · GitHub
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Sessions without a parent trace might not work? #5
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@gaborcsardi

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@gaborcsardi

Nevertheless this seems to work for me:

tmp <- tempfile(fileext = "otel")
trc_prv <- tracer_provider_stdstream_new(tmp)
trc <- trc_prv$get_tracer("mytracer")

sess1 <- trc$start_session() # 1
spn1 <- trc$start_span("1") # 1

sess2 <- trc$start_session() # 2
spn2 <- trc$start_span("2") # 2

trc$activate_session(sess1) # 1
spn11 <- trc$start_span("11") # 1
trc$deactivate_session(sess1) # 1
trc$finish_session(sess1) # 1
spn11$end() # 1
spn1$end() # 1

spn2$end() # 2
trc$finish_all_sessions() # 2

spn01 <- trc$start_span("01") # 0
spn01$end() # 0

trc$flush()
spns <- parse_spans(tmp)
spns[["1"]]$parent
#> [1] "0000000000000000"
spns[["2"]]$parent
#> [1] "0000000000000000"

spns[["11"]]$parent
#> [1] "974d73b58cb211b0"
spns[["1"]]$span_id
#> [1] "974d73b58cb211b0"

spns[["01"]]$span_id
#> [1] "5474aea57faf9dcf"

spns[["01"]]$parent
#> [1] "0000000000000000"

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