Examples with ExecutionException java.util.concurrent.ExecutionException used on opensource projects

Example 51 with ExecutionException

use of java.util.concurrent.ExecutionException in project hbase by apache.

the class RegionMover method load.

/**
   * Loads the specified {@link #hostname} with regions listed in the {@link #filename} RegionMover
   * Object has to be created using {@link #RegionMover(RegionMoverBuilder)}
   * @return true if loading succeeded, false otherwise
   * @throws ExecutionException
   * @throws InterruptedException if the loader thread was interrupted
   * @throws TimeoutException
   */
public boolean load() throws ExecutionException, InterruptedException, TimeoutException {
    setConf();
    ExecutorService loadPool = Executors.newFixedThreadPool(1);
    Future<Boolean> loadTask = loadPool.submit(new Load(this));
    loadPool.shutdown();
    try {
        if (!loadPool.awaitTermination((long) this.timeout, TimeUnit.SECONDS)) {
            LOG.warn("Timed out before finishing the loading operation. Timeout:" + this.timeout + "sec");
            loadPool.shutdownNow();
        }
    } catch (InterruptedException e) {
        loadPool.shutdownNow();
        Thread.currentThread().interrupt();
    }
    try {
        return loadTask.get(5, TimeUnit.SECONDS);
    } catch (InterruptedException e) {
        LOG.warn("Interrupted while loading Regions on " + this.hostname, e);
        throw e;
    } catch (ExecutionException e) {
        LOG.error("Error while loading regions on RegionServer " + this.hostname, e);
        throw e;
    }
}

Example 52 with ExecutionException

use of java.util.concurrent.ExecutionException in project hbase by apache.

the class HBaseFsck method processRegionServers.

/**
   * Contacts each regionserver and fetches metadata about regions.
   * @param regionServerList - the list of region servers to connect to
   * @throws IOException if a remote or network exception occurs
   */
void processRegionServers(Collection<ServerName> regionServerList) throws IOException, InterruptedException {
    List<WorkItemRegion> workItems = new ArrayList<>(regionServerList.size());
    List<Future<Void>> workFutures;
    // loop to contact each region server in parallel
    for (ServerName rsinfo : regionServerList) {
        workItems.add(new WorkItemRegion(this, rsinfo, errors, connection));
    }
    workFutures = executor.invokeAll(workItems);
    for (int i = 0; i < workFutures.size(); i++) {
        WorkItemRegion item = workItems.get(i);
        Future<Void> f = workFutures.get(i);
        try {
            f.get();
        } catch (ExecutionException e) {
            LOG.warn("Could not process regionserver " + item.rsinfo.getHostAndPort(), e.getCause());
        }
    }
}

Example 53 with ExecutionException

use of java.util.concurrent.ExecutionException in project hbase by apache.

the class TestAsyncTableGetMultiThreaded method test.

@Test
public void test() throws IOException, InterruptedException, ExecutionException {
    int numThreads = 20;
    AtomicBoolean stop = new AtomicBoolean(false);
    ExecutorService executor = Executors.newFixedThreadPool(numThreads, Threads.newDaemonThreadFactory("TestAsyncGet-"));
    List<Future<?>> futures = new ArrayList<>();
    IntStream.range(0, numThreads).forEach(i -> futures.add(executor.submit(() -> {
        run(stop);
        return null;
    })));
    Collections.shuffle(Arrays.asList(SPLIT_KEYS), new Random(123));
    Admin admin = TEST_UTIL.getAdmin();
    for (byte[] splitPoint : SPLIT_KEYS) {
        admin.split(TABLE_NAME, splitPoint);
        for (HRegion region : TEST_UTIL.getHBaseCluster().getRegions(TABLE_NAME)) {
            region.compact(true);
        }
        Thread.sleep(5000);
        admin.balancer(true);
        Thread.sleep(5000);
        ServerName metaServer = TEST_UTIL.getHBaseCluster().getServerHoldingMeta();
        ServerName newMetaServer = TEST_UTIL.getHBaseCluster().getRegionServerThreads().stream().map(t -> t.getRegionServer().getServerName()).filter(s -> !s.equals(metaServer)).findAny().get();
        admin.move(HRegionInfo.FIRST_META_REGIONINFO.getEncodedNameAsBytes(), Bytes.toBytes(newMetaServer.getServerName()));
        Thread.sleep(5000);
    }
    stop.set(true);
    executor.shutdown();
    for (Future<?> future : futures) {
        future.get();
    }
}

Example 54 with ExecutionException

use of java.util.concurrent.ExecutionException in project hbase by apache.

the class TestAsyncTableBatch method test.

@Test
public void test() throws InterruptedException, ExecutionException, IOException {
    AsyncTableBase table = tableGetter.apply(TABLE_NAME);
    table.putAll(IntStream.range(0, COUNT).mapToObj(i -> new Put(getRow(i)).addColumn(FAMILY, CQ, Bytes.toBytes(i))).collect(Collectors.toList())).get();
    List<Result> results = table.getAll(IntStream.range(0, COUNT).mapToObj(i -> Arrays.asList(new Get(getRow(i)), new Get(Arrays.copyOf(getRow(i), 4)))).flatMap(l -> l.stream()).collect(Collectors.toList())).get();
    assertEquals(2 * COUNT, results.size());
    for (int i = 0; i < COUNT; i++) {
        assertEquals(i, Bytes.toInt(results.get(2 * i).getValue(FAMILY, CQ)));
        assertTrue(results.get(2 * i + 1).isEmpty());
    }
    Admin admin = TEST_UTIL.getAdmin();
    admin.flush(TABLE_NAME);
    TEST_UTIL.getHBaseCluster().getRegions(TABLE_NAME).forEach(r -> {
        byte[] startKey = r.getRegionInfo().getStartKey();
        int number = startKey.length == 0 ? 55 : Integer.parseInt(Bytes.toString(startKey));
        byte[] splitPoint = Bytes.toBytes(String.format("%03d", number + 55));
        try {
            admin.splitRegion(r.getRegionInfo().getRegionName(), splitPoint);
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    });
    // we are not going to test the function of split so no assertion here. Just wait for a while
    // and then start our work.
    Thread.sleep(5000);
    table.deleteAll(IntStream.range(0, COUNT).mapToObj(i -> new Delete(getRow(i))).collect(Collectors.toList())).get();
    results = table.getAll(IntStream.range(0, COUNT).mapToObj(i -> new Get(getRow(i))).collect(Collectors.toList())).get();
    assertEquals(COUNT, results.size());
    results.forEach(r -> assertTrue(r.isEmpty()));
}

Example 55 with ExecutionException

use of java.util.concurrent.ExecutionException in project hbase by apache.

the class TestAsyncTableBatch method testPartialSuccess.

@Test
public void testPartialSuccess() throws IOException, InterruptedException, ExecutionException {
    Admin admin = TEST_UTIL.getAdmin();
    HTableDescriptor htd = admin.getTableDescriptor(TABLE_NAME);
    htd.addCoprocessor(ErrorInjectObserver.class.getName());
    admin.modifyTable(TABLE_NAME, htd);
    AsyncTableBase table = tableGetter.apply(TABLE_NAME);
    table.putAll(Arrays.asList(SPLIT_KEYS).stream().map(k -> new Put(k).addColumn(FAMILY, CQ, k)).collect(Collectors.toList())).get();
    List<CompletableFuture<Result>> futures = table.get(Arrays.asList(SPLIT_KEYS).stream().map(k -> new Get(k)).collect(Collectors.toList()));
    for (int i = 0; i < SPLIT_KEYS.length - 1; i++) {
        assertArrayEquals(SPLIT_KEYS[i], futures.get(i).get().getValue(FAMILY, CQ));
    }
    try {
        futures.get(SPLIT_KEYS.length - 1).get();
    } catch (ExecutionException e) {
        assertThat(e.getCause(), instanceOf(RetriesExhaustedException.class));
    }
}