@Test
public void testDisabledThresholds() throws Exception {
final InternalResourceManager irm = this.cache.getResourceManager();
final OffHeapMemoryMonitor monitor = irm.getOffHeapMonitor();
final RegionFactory regionFactory = this.cache.createRegionFactory(RegionShortcut.LOCAL);
regionFactory.setOffHeap(true);
final EvictionAttributesImpl evictionAttrs = new EvictionAttributesImpl();
evictionAttrs.setAlgorithm(EvictionAlgorithm.NONE);
regionFactory.setEvictionAttributes(evictionAttrs);
final Region region = regionFactory.create("testDefaultThresholdsRegion");
TestMemoryThresholdListener listener = new TestMemoryThresholdListener();
irm.addResourceListener(ResourceType.OFFHEAP_MEMORY, listener);
region.put("1", new Byte[550000]);
region.put("2", new Byte[200000]);
assertEquals(0, irm.getStats().getOffHeapEvictionStartEvents());
assertEquals(0, irm.getStats().getOffHeapEvictionStopEvents());
assertEquals(0, irm.getStats().getOffHeapCriticalEvents());
assertEquals(0, irm.getStats().getOffHeapSafeEvents());
assertEquals(0, listener.getEvictionThresholdCalls());
assertEquals(0, listener.getCriticalThresholdCalls());
// Enable eviction threshold and make sure event is generated
monitor.setEvictionThreshold(50f);
assertEquals(1, irm.getStats().getOffHeapEvictionStartEvents());
assertEquals(0, irm.getStats().getOffHeapCriticalEvents());
assertEquals(1, listener.getEvictionThresholdCalls());
assertEquals(0, listener.getCriticalThresholdCalls());
// Enable critical threshold and make sure event is generated
region.put("3", new Byte[200000]);
monitor.setCriticalThreshold(70f);
assertEquals(1, irm.getStats().getOffHeapEvictionStartEvents());
assertEquals(1, irm.getStats().getOffHeapCriticalEvents());
assertEquals(2, listener.getEvictionThresholdCalls());
assertEquals(1, listener.getCriticalThresholdCalls());
// Disable thresholds and verify events
monitor.setEvictionThreshold(0f);
monitor.setCriticalThreshold(0f);
assertEquals(1, irm.getStats().getOffHeapEvictionStartEvents());
assertEquals(1, irm.getStats().getOffHeapEvictionStopEvents());
assertEquals(1, irm.getStats().getOffHeapCriticalEvents());
assertEquals(1, irm.getStats().getOffHeapSafeEvents());
assertEquals(2, listener.getEvictionThresholdCalls());
assertEquals(2, listener.getCriticalThresholdCalls());
assertEquals(0, listener.getNormalCalls());
assertEquals(2, listener.getEvictionDisabledCalls());
assertEquals(2, listener.getCriticalDisabledCalls());
}
@Test
public void testGeneratingEvents() throws Exception {
InternalResourceManager internalManager = this.cache.getResourceManager();
OffHeapMemoryMonitor monitor = internalManager.getOffHeapMonitor();
monitor.setEvictionThreshold(50.0f);
monitor.setCriticalThreshold(75.0f);
monitor.stopMonitoring(true);
assertEquals(524288, internalManager.getStats().getOffHeapEvictionThreshold());
assertEquals(786432, internalManager.getStats().getOffHeapCriticalThreshold());
// Register a bunch of listeners
for (int i = 0; i < 10; i++) {
ResourceListener listener = new TestMemoryThresholdListener();
internalManager.addResourceListener(ResourceType.OFFHEAP_MEMORY, listener);
}
assertEquals(
10 + SYSTEM_LISTENERS,
internalManager.getResourceListeners(ResourceType.OFFHEAP_MEMORY).size());
// Start at normal
setThenTestListenersAndStats(400000, 0, 0, 0, 0, 0, 0, 0);
// Move to eviction
setThenTestListenersAndStats(550000, 0, 1, 0, 0, 1, 0, 0);
// Stay at eviction
setThenTestListenersAndStats(560000, 0, 1, 0, 0, 1, 0, 0);
// Move to critical
setThenTestListenersAndStats(850000, 0, 1, 0, 1, 2, 1, 0);
// Stay at critical (above critical clear margin)
setThenTestListenersAndStats(786431, 0, 1, 0, 1, 2, 1, 0);
setThenTestListenersAndStats(765465, 0, 1, 0, 1, 2, 1, 0);
// Move to eviction
setThenTestListenersAndStats(765454, 0, 1, 1, 1, 3, 1, 0);
// Stay at eviction (above eviction clear margin)
setThenTestListenersAndStats(524281, 0, 1, 1, 1, 3, 1, 0);
setThenTestListenersAndStats(503321, 0, 1, 1, 1, 3, 1, 0);
// Move to normal
setThenTestListenersAndStats(503310, 1, 1, 1, 1, 3, 1, 1);
// Disable eviction and verify normal event
monitor.setEvictionThreshold(0f);
setThenTestListenersAndStats(503315, 1, 1, 1, 1, 3, 1, 2);
// Enable eviction verify normal event
monitor.setEvictionThreshold(50f);
setThenTestListenersAndStats(503315, 1, 1, 1, 1, 3, 1, 3);
// Disable critical verify normal event
monitor.setCriticalThreshold(0f);
setThenTestListenersAndStats(503315, 1, 1, 1, 1, 3, 1, 4);
// Enable critical verify normal event
monitor.setCriticalThreshold(75f);
setThenTestListenersAndStats(503315, 1, 1, 1, 1, 3, 1, 5);
}
