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Fix diagnostic data merge logic for MongoDB #963

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Fix diagnostic data merge logic for MongoDB #963

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10 changes: 7 additions & 3 deletions exporter/diagnostic_data_collector.go
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Original file line number Diff line number Diff line change
Expand Up @@ -118,17 +118,21 @@ func (d *diagnosticDataCollector) collect(ch chan<- prometheus.Metric) {

// MongoDB 8.0 splits the diagnostic data into multiple blocks, so we need to merge them
if d.buildInfo.VersionArray[0] >= 8 { //nolint:gomnd
b := bson.M{}
for _, mv := range m {
nm := bson.M{}
for i, mv := range m {
b := bson.M{}
block, ok := mv.(bson.M)
if !ok {
continue
}
for k, v := range block {
b[k] = v
}

nm[i] = b
}
m = b

m = nm
}

metrics = makeMetrics("", m, d.topologyInfo.baseLabels(), d.compatibleMode)
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