Examples with NearCacheStats com.hazelcast.nearcache.NearCacheStats used on opensource projects

Example 6 with NearCacheStats

use of com.hazelcast.nearcache.NearCacheStats in project hazelcast by hazelcast.

the class NearCacheTest method testNearCacheStats.

@Test
public void testNearCacheStats() {
    int mapSize = 1000;
    String mapName = randomMapName();
    Config config = getConfig();
    config.getMapConfig(mapName).setNearCacheConfig(newNearCacheConfig().setInvalidateOnChange(false));
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
    HazelcastInstance[] instances = factory.newInstances(config);
    // populate map
    IMap<Integer, Integer> map = instances[0].getMap(mapName);
    populateMap(map, mapSize);
    // populate Near Cache
    populateNearCache(map, mapSize);
    NearCacheStats stats = getNearCacheStats(map);
    long ownedEntryCount = stats.getOwnedEntryCount();
    long misses = stats.getMisses();
    assertTrue(format("Near Cache entry count should be > %d but were %d", 400, ownedEntryCount), ownedEntryCount > 400);
    assertEquals(format("Near Cache misses should be %d but were %d", mapSize, misses), mapSize, misses);
    // make some hits
    populateNearCache(map, mapSize);
    long hits = stats.getHits();
    misses = stats.getMisses();
    long hitsAndMisses = hits + misses;
    assertTrue(format("Near Cache hits should be > %d but were %d", 400, hits), hits > 400);
    assertTrue(format("Near Cache misses should be > %d but were %d", 400, misses), misses > 400);
    assertEquals(format("Near Cache hits + misses should be %s but were %d", mapSize * 2, hitsAndMisses), mapSize * 2, hitsAndMisses);
}

Example 7 with NearCacheStats

use of com.hazelcast.nearcache.NearCacheStats in project hazelcast by hazelcast.

the class NearCacheTest method multiple_get_on_non_existing_key_generates_one_miss.

@Test
public void multiple_get_on_non_existing_key_generates_one_miss() {
    String mapName = "test";
    Config config = getConfig();
    NearCacheConfig nearCacheConfig = newNearCacheConfig();
    nearCacheConfig.setCacheLocalEntries(true);
    config.getMapConfig(mapName).setNearCacheConfig(nearCacheConfig);
    HazelcastInstance node = createHazelcastInstance(config);
    IMap map = node.getMap(mapName);
    map.get(1);
    map.get(1);
    map.get(1);
    NearCacheStats nearCacheStats = map.getLocalMapStats().getNearCacheStats();
    assertEquals(1, nearCacheStats.getMisses());
}

Example 8 with NearCacheStats

use of com.hazelcast.nearcache.NearCacheStats in project hazelcast by hazelcast.

the class AbstractNearCachePreloaderTest method assertNearCachePreloadDoneEventually.

private static void assertNearCachePreloadDoneEventually(final NearCacheTestContext clientContext, long timeoutSeconds) {
    assertTrueEventually(() -> {
        NearCache nearCache = clientContext.nearCache;
        NearCacheStats stats = nearCache.getNearCacheStats();
        int size = nearCache.size();
        assertTrue(format("Preloading has not finished yet. [size: %d, %s]", size, stats), nearCache.isPreloadDone());
    });
}

Example 9 with NearCacheStats

use of com.hazelcast.nearcache.NearCacheStats in project hazelcast by hazelcast.

the class NearCacheRecordStoreTestSupport method statsCalculated.

void statsCalculated(InMemoryFormat inMemoryFormat) {
    long creationStartTime = System.currentTimeMillis();
    NearCacheConfig nearCacheConfig = createNearCacheConfig(DEFAULT_NEAR_CACHE_NAME, inMemoryFormat);
    NearCacheRecordStore<Integer, String> nearCacheRecordStore = createNearCacheRecordStore(nearCacheConfig, inMemoryFormat);
    long creationEndTime = System.currentTimeMillis();
    int expectedEntryCount = 0;
    int expectedHits = 0;
    int expectedMisses = 0;
    for (int i = 0; i < DEFAULT_RECORD_COUNT; i++) {
        nearCacheRecordStore.put(i, null, "Record-" + i, null);
        expectedEntryCount++;
    }
    for (int i = 0; i < DEFAULT_RECORD_COUNT; i++) {
        if (nearCacheRecordStore.get(i * 3) != null) {
            expectedHits++;
        } else {
            expectedMisses++;
        }
    }
    NearCacheStats nearCacheStats = nearCacheRecordStore.getNearCacheStats();
    long memoryCostWhenFull = nearCacheStats.getOwnedEntryMemoryCost();
    // Note that System.currentTimeMillis() is not monotonically increasing.
    // Below assertions can fail anytime but for testing purposes we can use `assertTrueEventually`.
    long nearCacheStatsCreationTime = nearCacheStats.getCreationTime();
    assertTrue("nearCacheStatsCreationTime=" + nearCacheStatsCreationTime + ", and creationStartTime=" + creationStartTime, nearCacheStatsCreationTime >= creationStartTime);
    assertTrue("nearCacheStatsCreationTime=" + nearCacheStatsCreationTime + ", and creationEndTime=" + creationEndTime, nearCacheStatsCreationTime <= creationEndTime);
    assertEquals(expectedHits, nearCacheStats.getHits());
    assertEquals(expectedMisses, nearCacheStats.getMisses());
    assertEquals(expectedEntryCount, nearCacheStats.getOwnedEntryCount());
    switch(inMemoryFormat) {
        case NATIVE:
        case BINARY:
            assertTrue(memoryCostWhenFull > 0);
            break;
        case OBJECT:
            assertEquals(0, memoryCostWhenFull);
            break;
        default:
    }
    int sizeBefore = nearCacheRecordStore.size();
    for (int i = 0; i < DEFAULT_RECORD_COUNT; i++) {
        nearCacheRecordStore.invalidate(i * 3);
    }
    int sizeAfter = nearCacheRecordStore.size();
    int invalidatedSize = sizeBefore - sizeAfter;
    expectedEntryCount -= invalidatedSize;
    assertEquals(expectedEntryCount, nearCacheStats.getOwnedEntryCount());
    switch(inMemoryFormat) {
        case NATIVE:
        case BINARY:
            assertTrue(nearCacheStats.getOwnedEntryMemoryCost() > 0);
            assertTrue(nearCacheStats.getOwnedEntryMemoryCost() < memoryCostWhenFull);
            break;
        case OBJECT:
            assertEquals(0, nearCacheStats.getOwnedEntryMemoryCost());
            break;
        default:
    }
    nearCacheRecordStore.clear();
    assertEquals(0, nearCacheStats.getOwnedEntryMemoryCost());
}

Example 10 with NearCacheStats

use of com.hazelcast.nearcache.NearCacheStats in project hazelcast by hazelcast.

the class NearCacheTestUtils method assertNearCacheStats.

/**
 * Asserts the {@link NearCacheStats} for expected values.
 *
 * @param context                 the {@link NearCacheTestContext} to retrieve the stats from
 * @param expectedOwnedEntryCount the expected owned entry count
 * @param expectedHits            the expected Near Cache hits
 * @param expectedMisses          the expected Near Cache misses
 * @param expectedEvictions       the expected Near Cache evictions
 * @param expectedExpirations     the expected Near Cache expirations
 */
public static void assertNearCacheStats(NearCacheTestContext<?, ?, ?, ?> context, long expectedOwnedEntryCount, long expectedHits, long expectedMisses, long expectedEvictions, long expectedExpirations) {
    NearCacheStats stats = new NearCacheStatsImpl(context.stats);
    assertEqualsFormat("Near Cache entry count should be %d, but was %d (%s)", expectedOwnedEntryCount, stats.getOwnedEntryCount(), stats);
    assertEqualsFormat("Near Cache hits should be %d, but were %d (%s)", expectedHits, stats.getHits(), stats);
    assertEqualsFormat("Near Cache misses should be %d, but were %d (%s)", expectedMisses, stats.getMisses(), stats);
    assertEqualsFormat("Near Cache evictions should be %d, but were %d (%s)", expectedEvictions, stats.getEvictions(), stats);
    assertEqualsFormat("Near Cache expirations should be %d, but were %d (%s)", expectedExpirations, stats.getExpirations(), stats);
}