perf(bigtable): parallelize the exportTimeSeries function #13004
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hongalex
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Oct 10, 2025
bhshkh
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Dec 15, 2025
PR created by the Librarian CLI to initialize a release. Merging this PR will auto trigger a release. Librarian Version: v0.7.0 Language Image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/librarian-go@sha256:718167d5c23ed389b41f617b3a00ac839bdd938a6bd2d48ae0c2f1fa51ab1c3d <details><summary>bigtable: 1.41.0</summary> ## [1.41.0](bigtable/v1.40.1...bigtable/v1.41.0) (2025-12-15) ### Features * add PeerInfo proto in Bigtable API (PiperOrigin-RevId: 829585900) ([185951b](185951b3)) * precompute featureflags in client and reuse (#13297) ([3b3253a](3b3253ac)) * Add experimental Bigtable connection pool with custom load balancing strategy. (#12882) ([7aa9612](7aa96127)) * Enable ALTS hard bound token in Bigtable w/ direct access (#13153) ([9023934](90239341)) * Enable routing cookie and attempt headers for enhanced retries (#12964) ([96cfd47](96cfd47a)) ### Bug Fixes * fix project id sent in otel (#13286) ([4865868](4865868c)) * screaming uppercase metric status (#13484) ([b35ee8f](b35ee8fd)) ### Performance Improvements * parallelize the exportTimeSeries function (#13004) ([bafd691](bafd691d)) </details>
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Fix Bigtable test timeout in TestBatchingExport
The
TestBatchingExport/1199_metricstest was timing out after 45 minutes.This was caused by the
exportTimeSeriesfunction sending metric batches sequentially. With 1199 metrics, this resulted in 6 separate, synchronous gRPC calls, which caused a hang.This change parallelizes the
exportTimeSeriesfunction to send metric batches concurrently using goroutines. This resolves the timeout and improves performance.Fixes: #12920