Export duration approaching timeout threshold triggers alerts

Export duration p95 is approaching configured timeout (≥80% of timeout setting) for 10+ minutes. This indicates insufficient timeout buffer and risk of imminent timeout failures.

Review metrics showing histogram_quantile(0.95, rate(otelcol_exporter_send_duration_bucket[5m])) / otelcol_exporter_timeout_seconds. When ratio ≥0.8, increase timeout setting. Follow best practice: set timeout to p99 export duration + 50% buffer. Alert on this condition to proactively adjust timeouts before failures occur.