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Replace es-spanstore tracing instrumentation with OpenTelemetry #4596

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merged 16 commits into from
Jul 30, 2023

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afzal442
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@afzal442 afzal442 commented Jul 23, 2023

Which problem is this PR solving?

Short description of the changes

  • Replaces OT tracer with OTEL tracer to support jtracer pkg

Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
@afzal442 afzal442 requested a review from a team as a code owner July 23, 2023 09:32
@afzal442 afzal442 requested a review from vprithvi July 23, 2023 09:32
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codecov bot commented Jul 23, 2023

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.01% ⚠️

Comparison is base (2c1bf07) 97.08% compared to head (a98a0ed) 97.07%.
Report is 4 commits behind head on main.

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #4596      +/-   ##
==========================================
- Coverage   97.08%   97.07%   -0.01%     
==========================================
  Files         301      301              
  Lines       17857    17870      +13     
==========================================
+ Hits        17336    17347      +11     
- Misses        418      419       +1     
- Partials      103      104       +1     
Flag Coverage Δ
unittests 97.07% <100.00%> (-0.01%) ⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed Coverage Δ
plugin/storage/es/factory.go 97.65% <100.00%> (+0.03%) ⬆️
plugin/storage/es/spanstore/reader.go 100.00% <100.00%> (ø)

... and 4 files with indirect coverage changes

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Signed-off-by: Afzal Ansari <afzal442@gmail.com>
plugin/storage/es/spanstore/reader.go Outdated Show resolved Hide resolved
plugin/storage/es/spanstore/reader_test.go Outdated Show resolved Hide resolved
plugin/storage/es/spanstore/reader.go Outdated Show resolved Hide resolved
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
@afzal442 afzal442 changed the title [WIP] Add OTEL tracer to spanstore component [WIP] Add OTEL tracer to es-spanstore component Jul 26, 2023
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
plugin/storage/es/spanstore/reader_test.go Outdated Show resolved Hide resolved
plugin/storage/es/spanstore/reader_test.go Outdated Show resolved Hide resolved
plugin/storage/es/spanstore/reader_test.go Outdated Show resolved Hide resolved
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Signed-off-by: Afzal Ansari <afzal442@gmail.com>
Comment on lines 142 to 144
if p.Tracer == nil {
p.Tracer = otel.Tracer("eSpanstore.SpanReader")
}
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Suggested change
if p.Tracer == nil {
p.Tracer = otel.Tracer("eSpanstore.SpanReader")
}

client: client,
logger: logger,
logBuffer: logBuffer,
exporter: exp,
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Suggested change
exporter: exp,
traceBuffer: exp,

@@ -307,6 +327,8 @@ func TestSpanReader_GetTrace(t *testing.T) {
}, nil)

trace, err := r.reader.GetTrace(context.Background(), model.NewTraceID(0, 1))
require.NotEmpty(t, r.exporter.GetSpans(), "Spans recorded")
require.NoError(t, r.tracerCloser())
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@yurishkuro yurishkuro Jul 30, 2023

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one of the nice things about doing tests in a functional style via withSpanReader is that withSpanReader can do both initialization and tear-down, since it's frame is lower in the stack than the actual test function and defers inside withSpanReader always get executed even if the test function panics.

   TestSomething()
       withSpanReader(testFn)
            d = initialize()
            defer d.teardown()
            testFn(d)

So I don't think we even need to expose traceCloser in the struct, we can just defer-call it inside withSpanReader.

This is very different from helper functions that simply return a tracer. They have no room to defer-schedule shutdown, and you have to do it manually in the caller.

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That's nit. Cherry picked. 😄

Signed-off-by: Afzal <94980910+afzalbin64@users.noreply.github.com>
@@ -126,6 +124,7 @@ func withSpanReader(fn func(r *spanReaderTest)) {
MaxDocCount: defaultMaxDocCount,
}),
}
defer closer()
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we talked about where defers should be placed

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@afzalbin64 afzalbin64 Jul 30, 2023

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sorry Yuri! I did it inside withSpanReader function call. but How can I defer it? I think I have to modify the closer to use func() and fmt.Errorf. Or if I mistaken here, will I have to place it inside Test Function(fn)?

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you create the object in L110, so defer closer() should be L111. Always keep defer next to creation.

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I did that. Just to re-commit.

r := NewSpanReader(testCase.params)

actualSpan := r.timeRangeIndices(r.spanIndexPrefix, r.spanIndexDateLayout, date, date, -1*time.Hour)
actualService := r.timeRangeIndices(r.serviceIndexPrefix, r.serviceIndexDateLayout, date, date, -24*time.Hour)
assert.Equal(t, testCase.indices, append(actualSpan, actualService...))
}
require.NoError(t, closer())
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defer after creation

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L198

@@ -160,6 +177,10 @@ func (s *ESStorageIntegration) initSpanstore(allTagsAsFields, archive bool) erro
MaxDocCount: defaultMaxDocCount,
})

if closer != nil {
return err
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?

Signed-off-by: Afzal <94980910+afzalbin64@users.noreply.github.com>
MaxSpanAge: 0,
IndexPrefix: "",
TagDotReplacement: "@",
Archive: true,
UseReadWriteAliases: readAlias,
}),
}
defer closer()
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to L134

Signed-off-by: Afzal <94980910+afzalbin64@users.noreply.github.com>
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lgtm

@yurishkuro yurishkuro changed the title [WIP] Add OTEL tracer to es-spanstore component Replace es-spanstore tracing instrumentation with OpenTelemetry Jul 30, 2023
@yurishkuro yurishkuro merged commit de3cf99 into jaegertracing:main Jul 30, 2023
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minor clean-up #4605

@afzalbin64 afzalbin64 deleted the replace-with-otel-spanstore branch July 31, 2023 05:40
@afzalbin64 afzalbin64 restored the replace-with-otel-spanstore branch August 14, 2023 07:20
@afzal442 afzal442 deleted the replace-with-otel-spanstore branch August 14, 2023 17:48
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3 participants