Examples with DFLT_PARTITION_COUNT org.apache.ignite.cache.affinity.rendezvous.RendezvousAffinityFunction.DFLT_PARTITION_COUNT used on opensource projects

Example 1 with DFLT_PARTITION_COUNT

use of org.apache.ignite.cache.affinity.rendezvous.RendezvousAffinityFunction.DFLT_PARTITION_COUNT in project ignite by apache.

the class CacheGroupsMetricsRebalanceTest method testCacheGroupRebalance.

/**
 * @throws Exception If failed.
 */
@Test
public void testCacheGroupRebalance() throws Exception {
    IgniteEx ignite0 = startGrid(0);
    List<String> cacheNames = Arrays.asList(CACHE4, CACHE5);
    int allKeysCount = 0;
    for (String cacheName : cacheNames) {
        Map<Integer, Long> data = new Random().ints(KEYS_COUNT).distinct().boxed().collect(Collectors.toMap(i -> i, i -> (long) i));
        ignite0.getOrCreateCache(cacheName).putAll(data);
        allKeysCount += data.size();
    }
    TestRecordingCommunicationSpi.spi(ignite0).blockMessages(new IgniteBiPredicate<ClusterNode, Message>() {

        @Override
        public boolean apply(ClusterNode node, Message msg) {
            return (msg instanceof GridDhtPartitionSupplyMessage) && CU.cacheId(GROUP2) == ((GridCacheGroupIdMessage) msg).groupId();
        }
    });
    IgniteEx ignite1 = startGrid(1);
    TestRecordingCommunicationSpi.spi(ignite0).waitForBlocked();
    MetricRegistry mreg = ignite1.context().metric().registry(metricName(CACHE_GROUP_METRICS_PREFIX, GROUP2));
    LongMetric startTime = mreg.findMetric("RebalancingStartTime");
    LongMetric lastCancelledTime = mreg.findMetric("RebalancingLastCancelledTime");
    LongMetric endTime = mreg.findMetric("RebalancingEndTime");
    LongMetric partitionsLeft = mreg.findMetric("RebalancingPartitionsLeft");
    IntMetric partitionsTotal = mreg.findMetric("RebalancingPartitionsTotal");
    LongMetric receivedKeys = mreg.findMetric("RebalancingReceivedKeys");
    LongMetric receivedBytes = mreg.findMetric("RebalancingReceivedBytes");
    ObjectGauge<Map<UUID, Long>> fullReceivedKeys = mreg.findMetric("RebalancingFullReceivedKeys");
    ObjectGauge<Map<UUID, Long>> histReceivedKeys = mreg.findMetric("RebalancingHistReceivedKeys");
    ObjectGauge<Map<UUID, Long>> fullReceivedBytes = mreg.findMetric("RebalancingFullReceivedBytes");
    ObjectGauge<Map<UUID, Long>> histReceivedBytes = mreg.findMetric("RebalancingHistReceivedBytes");
    assertEquals("During the start of the rebalancing, the number of partitions in the metric should be " + "equal to the number of partitions in the cache group.", DFLT_PARTITION_COUNT, partitionsLeft.value());
    assertEquals("The total number of partitions in the metric should be " + "equal to the number of partitions in the cache group.", DFLT_PARTITION_COUNT, partitionsTotal.value());
    long rebalancingStartTime = startTime.value();
    assertNotSame("During rebalancing start, the start time metric must be determined.", -1, startTime.value());
    assertEquals("Rebalancing last cancelled time must be undefined.", -1, lastCancelledTime.value());
    assertEquals("Before the rebalancing is completed, the end time metric must be undefined.", -1, endTime.value());
    ToLongFunction<Map<UUID, Long>> sumFunc = map -> map.values().stream().mapToLong(Long::longValue).sum();
    String zeroReceivedKeysMsg = "Until a partition supply message has been delivered, keys cannot be received.";
    assertEquals(zeroReceivedKeysMsg, 0, receivedKeys.value());
    assertEquals(zeroReceivedKeysMsg, 0, sumFunc.applyAsLong(fullReceivedKeys.value()));
    assertEquals(zeroReceivedKeysMsg, 0, sumFunc.applyAsLong(histReceivedKeys.value()));
    String zeroReceivedBytesMsg = "Until a partition supply message has been delivered, bytes cannot be received.";
    assertEquals(zeroReceivedBytesMsg, 0, receivedBytes.value());
    assertEquals(zeroReceivedBytesMsg, 0, sumFunc.applyAsLong(fullReceivedBytes.value()));
    assertEquals(zeroReceivedBytesMsg, 0, sumFunc.applyAsLong(histReceivedBytes.value()));
    checkSuppliers(Arrays.asList(ignite0.localNode().id()), fullReceivedKeys, histReceivedKeys, fullReceivedBytes, histReceivedBytes);
    TestRecordingCommunicationSpi.spi(ignite0).stopBlock();
    for (String cacheName : cacheNames) ignite1.context().cache().internalCache(cacheName).preloader().rebalanceFuture().get();
    assertEquals("After completion of rebalancing, there are no partitions of the cache group that are" + " left to rebalance.", 0, partitionsLeft.value());
    assertEquals("After completion of rebalancing, the total number of partitions in the metric should be" + " equal to the number of partitions in the cache group.", DFLT_PARTITION_COUNT, partitionsTotal.value());
    assertEquals("After the rebalancing is ended, the rebalancing start time must be equal to the start time " + "measured immediately after the rebalancing start.", rebalancingStartTime, startTime.value());
    assertEquals("Rebalancing last cancelled time must be undefined.", -1, lastCancelledTime.value());
    waitForCondition(() -> endTime.value() != -1, 1000);
    assertTrue("Rebalancing end time must be determined and must be longer than the start time " + "[RebalancingStartTime=" + rebalancingStartTime + ", RebalancingEndTime=" + endTime.value() + "].", rebalancingStartTime < endTime.value());
    String wrongReceivedKeyCntMsg = "The number of currently rebalanced keys for the whole cache group should " + "be equal to the number of entries in the caches.";
    assertEquals(wrongReceivedKeyCntMsg, allKeysCount, receivedKeys.value());
    assertEquals(wrongReceivedKeyCntMsg, allKeysCount, sumFunc.applyAsLong(fullReceivedKeys.value()));
    assertEquals(0, sumFunc.applyAsLong(histReceivedKeys.value()));
    int estimateByteCnt = allKeysCount * (Integer.BYTES + Long.BYTES);
    String wrongReceivedByteCntMsg = "The number of currently rebalanced bytes of this cache group was expected " + "more " + estimateByteCnt + " bytes.";
    assertTrue(wrongReceivedByteCntMsg, receivedBytes.value() > estimateByteCnt);
    assertTrue(wrongReceivedByteCntMsg, sumFunc.applyAsLong(fullReceivedBytes.value()) > estimateByteCnt);
    assertEquals(0, sumFunc.applyAsLong(histReceivedBytes.value()));
    checkSuppliers(Arrays.asList(ignite0.localNode().id()), fullReceivedKeys, histReceivedKeys, fullReceivedBytes, histReceivedBytes);
}