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: 3 (over 300 total runs, 3 nightlies)
First seen: 2026-08-05 · Last seen: 2026-10-07

Per-config cumulative

Config	Failed	Total
gcc15-integration	2	200
qnx-integration	1	100

{
  "configs": {
    "gcc15-integration": {
      "failed_runs": 2,
      "total_runs": 200
    },
    "qnx-integration": {
      "failed_runs": 1,
      "total_runs": 100
    }
  },
  "cumulative_failed_runs": 3,
  "cumulative_total_runs": 300,
  "first_seen": "2026-08-05",
  "last_seen": "2026-10-07",
  "nightly_count": 3,
  "target": "//score/mw/com/test/bigdata/integration_test:test_bigdata_exchange"
}

Nightly run 30964957957 on 2026-08-05: 1/100 runs failed.

Per config: qnx-integration 1/100.

Nightly run 32795042173 on 2026-08-25: 1/100 runs failed.

Per config: gcc15-integration 1/100.

Nightly run 37556206847 on 2026-10-07: 1/100 runs failed.

Per config: gcc15-integration 1/100.

A failed execution of this flaky test was verified from the CI log to be a QNX guest kernel panic during boot (muon_sched), before the test body ran. SSH failures are a consequence. Tracked in #1513. Only the sampled executions were verified.

Closing as mitigated by itf 0.7.0 (itf#150), now used in communication via #1545 (merged 2026-11-03).

Root cause: the QNX SDP 8.0.4 guest sporadically kernel-panics during boot (muon_sched@458, about 1 in 2,200 boots; tracked in #1513, vendor report eclipse-score/qnx_sdp#9), which appeared here as SSH/test failures before any test ran. The ITF now detects the dead guest and restarts it (up to 3 boot attempts, --qemu-boot-attempts), so the panic no longer fails the test. Please reopen if a boot failure still fails a test.

This issue also saw the docker exec output loss, fixed by itf#151 in the same release.

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Flaky test: //score/mw/com/test/bigdata/integration_test:test_bigdata_exchange #840