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telemetry: Initialize telemetry asynchronously #35898

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Jul 6, 2022
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6 changes: 4 additions & 2 deletions session/session.go
Original file line number Diff line number Diff line change
Expand Up @@ -2879,8 +2879,10 @@ func BootstrapSession(store kv.Storage) (*domain.Domain, error) {
if dom.GetEtcdClient() != nil {
// We only want telemetry data in production-like clusters. When TiDB is deployed over other engines,
// for example, unistore engine (used for local tests), we just skip it. Its etcd client is nil.
dom.TelemetryReportLoop(ses[5])
dom.TelemetryRotateSubWindowLoop(ses[5])
go func() {
dom.TelemetryReportLoop(ses[5])
dom.TelemetryRotateSubWindowLoop(ses[5])
}()
}

// A sub context for update table stats, and other contexts for concurrent stats loading.
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