TimeoutException on OJ

[ywyz233]

The taskID is 03aae5cc. Everything was right when I ran benchmark locally. However there is a timeoutException when importing data on OJ.

[ywyz233]

When I transformed the way of importing date from concurrent execution to serial execution, all test cases on OJ were passed.

[hezean]

unexpected timeouts are often caused by failing to release connections, you'd check if your code could release the connection in all circumstances, like when internal errors occurred.

the platform has successfully run ~400 benchmarks, per our observation, the judger itself is well-developed. if you insist there's something wrong, please verify your program in linux env (to be spec., that's debian 11)

[hezean]

fyi, here's how we run your code

log("*** Running benchmark")
val runner = ProcessBuilder(
    "java", "-Xmx4g", "-Xms4g", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseZGC",
    "-jar", "sustc-runner.jar", "--spring.profiles.active=benchmark"
)
    .directory(Path(workDir, "work", "sustc", "run").toFile())
    .redirectOutput(File(workDir, "result/benchmark-stdout.log"))
    .redirectError(File(workDir, "result/benchmark-stderr.log"))
    .start()

val completed = runner.waitFor(50, TimeUnit.MINUTES)

if (!completed) {
    runner.destroy()
    runner.waitFor(1, TimeUnit.MINUTES)
    throw Exception("Benchmark timeout after 50 minutes")
}

[ywyz233]

Ok ,Thank you