@Test
public void testNearCacheStats() throws Exception {
String mapName = "NearCacheStatsTest";
Config config = new Config();
config
.getMapConfig(mapName)
.setNearCacheConfig(new NearCacheConfig().setInvalidateOnChange(true));
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
HazelcastInstance[] instances = factory.newInstances(config);
IMap<Integer, Integer> map = instances[0].getMap("NearCacheStatsTest");
for (int i = 0; i < 1000; i++) {
map.put(i, i);
}
// populate near cache
for (int i = 0; i < 1000; i++) {
map.get(i);
}
NearCacheStats stats = map.getLocalMapStats().getNearCacheStats();
assertTrue("owned Entries", 400 < stats.getOwnedEntryCount());
assertTrue("misses", 1000 == stats.getMisses());
// make some hits
for (int i = 0; i < 1000; i++) {
map.get(i);
}
NearCacheStats stats2 = map.getLocalMapStats().getNearCacheStats();
assertTrue("hits", 400 < stats2.getHits());
assertTrue("misses", 400 < stats2.getMisses());
assertTrue("hits+misses", 2000 == stats2.getHits() + stats2.getMisses());
}
