Flaky test: //score/mw/com/test/bigdata/integration_test:test_bigdata_exchange

## Flaky test: `//score/mw/com/test/bigdata/integration_test:test_bigdata_exchange`

**Cumulative failed runs observed:** 2 (over 200 total runs, 2 nightlies)
**First seen:** 2026-08-05 · **Last seen:** 2026-08-25

### Per-config cumulative

| Config | Failed | Total |
|--------|-------:|------:|
| gcc15-integration | 1 | 100 |
| qnx-integration | 1 | 100 |

```json
{
"configs": {
"gcc15-integration": {
"failed_runs": 1,
"total_runs": 100
},
"qnx-integration": {
"failed_runs": 1,
"total_runs": 100
}
},
"cumulative_failed_runs": 2,
"cumulative_total_runs": 200,
"first_seen": "2026-08-05",
"last_seen": "2026-08-25",
"nightly_count": 2,
"target": "//score/mw/com/test/bigdata/integration_test:test_bigdata_exchange"
}
```

Start by running //score/mw/com/test/bigdata/integration_test:test_bigdata_exchange in the gcc15-integration and qnx-integration configurations, then inspect the failure output and test history. Trace the cause of the intermittent failures; done means the target completes reliably across both configurations and no longer flakes in subsequent runs.

Written by the indexing model from the issue text.