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ARROW-7106: [Java] Fix the problem that flight perf test hangs endlessly #5799

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ARROW-7106: [Java] Fix the problem that flight perf test hangs endlessly #5799

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19 changes: 16 additions & 3 deletions java/flight/src/test/java/org/apache/arrow/flight/perf/TestPerf.java
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@

package org.apache.arrow.flight.perf;

import java.util.Arrays;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.Executors;
Expand Down Expand Up @@ -78,15 +79,18 @@ public static void main(String[] args) throws Exception {

@Test
public void throughput() throws Exception {
for (int i = 0; i < 10; i++) {
final int numRuns = 10;
ListeningExecutorService pool = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(4));
double [] throughPuts = new double[numRuns];

for (int i = 0; i < numRuns; i++) {
try (
final BufferAllocator a = new RootAllocator(Long.MAX_VALUE);
final PerformanceTestServer server =
FlightTestUtil.getStartedServer((location) -> new PerformanceTestServer(a, location));
final FlightClient client = FlightClient.builder(a, server.getLocation()).build();
) {
final FlightInfo info = client.getInfo(getPerfFlightDescriptor(50_000_000L, 4095, 2));
ListeningExecutorService pool = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(4));
List<ListenableFuture<Result>> results = info.getEndpoints()
.stream()
.map(t -> new Consumer(client, t.getTicket()))
Expand All @@ -102,16 +106,25 @@ public void throughput() throws Exception {
}).get();

double seconds = r.nanos * 1.0d / 1000 / 1000 / 1000;
throughPuts[i] = (r.bytes * 1.0d / 1024 / 1024) / seconds;
System.out.println(String.format(
"Transferred %d records totaling %s bytes at %f MiB/s. %f record/s. %f batch/s.",
r.rows,
r.bytes,
(r.bytes * 1.0d / 1024 / 1024) / seconds,
throughPuts[i],
(r.rows * 1.0d) / seconds,
(r.batches * 1.0d) / seconds
));
}
}
pool.shutdown();

System.out.println("Summary: ");
double average = Arrays.stream(throughPuts).sum() / numRuns;
double sqrSum = Arrays.stream(throughPuts).map(val -> val - average).map(val -> val * val).sum();
double stddev = Math.sqrt(sqrSum / numRuns);
System.out.println(String.format("Average throughput: %f MiB/s, standard deviation: %f MiB/s",
average, stddev));
}

private final class Consumer implements Callable<Result> {
Expand Down