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

Example 21 with NearCacheStats

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

the class NearCacheTestSupport method testNearCacheEviction.

protected void testNearCacheEviction(IMap<Integer, Integer> map, int size) {
    // all Near Cache implementations use the same eviction algorithm, which evicts a single entry
    int expectedEvictions = 1;
    // populate map with an extra entry
    populateMap(map, size + 1);
    // populate Near Caches
    populateNearCache(map, size);
    NearCacheStats statsBeforeEviction = getNearCacheStats(map);
    // trigger eviction via fetching the extra entry
    map.get(size);
    waitForNearCacheEvictions(map, expectedEvictions);
    // we expect (size + the extra entry - the expectedEvictions) entries in the Near Cache
    int expectedOwnedEntryCount = size + 1 - expectedEvictions;
    NearCacheStats stats = getNearCacheStats(map);
    assertEquals("got the wrong ownedEntryCount", expectedOwnedEntryCount, stats.getOwnedEntryCount());
    assertEquals("got the wrong eviction count", expectedEvictions, stats.getEvictions());
    assertEquals("got the wrong expiration count", 0, stats.getExpirations());
    assertEquals("we expect the same hits", statsBeforeEviction.getHits(), stats.getHits());
    assertEquals("we expect the same misses", statsBeforeEviction.getMisses(), stats.getMisses());
}

Example 22 with NearCacheStats

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

the class NearCacheTestSupport method testNearCacheExpiration.

protected void testNearCacheExpiration(final IMap<Integer, Integer> map, final int size, int expireSeconds) {
    populateMap(map, size);
    populateNearCache(map, size);
    final NearCacheStats statsBeforeExpiration = getNearCacheStats(map);
    assertTrue(format("we expected to have all map entries in the Near Cache or already expired (%s)", statsBeforeExpiration), statsBeforeExpiration.getOwnedEntryCount() + statsBeforeExpiration.getExpirations() >= size);
    sleepSeconds(expireSeconds + 1);
    assertTrueEventually(new AssertTask() {

        public void run() {
            // map.get() triggers Near Cache eviction/expiration process,
            // but we need to call this on every assert since the Near Cache has a cooldown for expiration cleanups
            map.get(0);
            NearCacheStats stats = getNearCacheStats(map);
            assertEquals("we expect the same hits", statsBeforeExpiration.getHits(), stats.getHits());
            assertEquals("we expect the same misses", statsBeforeExpiration.getMisses(), stats.getMisses());
            assertEquals("we expect all entries beside the 'trigger entry' to be deleted from the Near Cache", 1, stats.getOwnedEntryCount());
            assertEquals("we did not expect any entries to be evicted from the Near Cache", 0, stats.getEvictions());
            assertTrue(format("we expect at least %d entries to be expired from the Near Cache", size), stats.getExpirations() >= size);
        }
    });
}