io.netty.buffer.PooledByteBufAllocatorMetric Java Examples

The following examples show how to use io.netty.buffer.PooledByteBufAllocatorMetric. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: AbstractDataBufferAllocatingTestCase.java    From spring-analysis-note with MIT License 6 votes vote down vote up 
private void verifyAllocations() {
	if (this.bufferFactory instanceof NettyDataBufferFactory) {
		ByteBufAllocator allocator = ((NettyDataBufferFactory) this.bufferFactory).getByteBufAllocator();
		if (allocator instanceof PooledByteBufAllocator) {
			Instant start = Instant.now();
			while (true) {
				PooledByteBufAllocatorMetric metric = ((PooledByteBufAllocator) allocator).metric();
				long total = getAllocations(metric.directArenas()) + getAllocations(metric.heapArenas());
				if (total == 0) {
					return;
				}
				if (Instant.now().isBefore(start.plus(Duration.ofSeconds(5)))) {
					try {
						Thread.sleep(50);
					}
					catch (InterruptedException ex) {
						// ignore
					}
					continue;
				}
				assertEquals("ByteBuf Leak: " + total + " unreleased allocations", 0, total);
			}
		}
	}
}
Example #2
Source File: NettyInternalMetrics.java    From ambry with Apache License 2.0 6 votes vote down vote up 
@Override
public void run() {
  PooledByteBufAllocatorMetric metric = PooledByteBufAllocator.DEFAULT.metric();
  numDirectArenas = metric.numDirectArenas();
  numHeapArenas = metric.numHeapArenas();
  numThreadLocalCaches = metric.numThreadLocalCaches();
  usedHeapMemory = metric.usedHeapMemory();
  usedDirectMemory = metric.usedDirectMemory();
  List<PoolArenaMetric> heapArenaMetrics = metric.heapArenas();
  List<PoolArenaMetric> directArenaMetrics = metric.directArenas();
  numHeapTotalAllocations = heapArenaMetrics.stream().mapToLong(PoolArenaMetric::numAllocations).sum();
  numHeapTotalDeallocations = heapArenaMetrics.stream().mapToLong(PoolArenaMetric::numDeallocations).sum();
  numHeapTotalActiveAllocations = heapArenaMetrics.stream().mapToLong(PoolArenaMetric::numActiveAllocations).sum();
  numDirectTotalAllocations = directArenaMetrics.stream().mapToLong(PoolArenaMetric::numAllocations).sum();
  numDirectTotalDeallocations = directArenaMetrics.stream().mapToLong(PoolArenaMetric::numDeallocations).sum();
  numDirectTotalActiveAllocations =
      directArenaMetrics.stream().mapToLong(PoolArenaMetric::numActiveAllocations).sum();
}
Example #3
Source File: NettyByteBufLeakHelper.java    From ambry with Apache License 2.0 6 votes vote down vote up 
/**
 * Method to call at any method that is tagged {@link org.junit.Before} to collect some allocation stats.
 */
public void beforeTest() {
  if (cachedEnabled) {
    return;
  }
  PooledByteBufAllocatorMetric metric = PooledByteBufAllocator.DEFAULT.metric();
  List<PoolArenaMetric> heaps = metric.heapArenas();
  activeHeapAllocations = heaps.stream().mapToLong(PoolArenaMetric::numActiveAllocations).sum();
  heapAllocations = heaps.stream().mapToLong(PoolArenaMetric::numAllocations).sum();
  heapDeallocations = heaps.stream().mapToLong(PoolArenaMetric::numDeallocations).sum();

  List<PoolArenaMetric> directs = metric.directArenas();
  activeDirectAllocations = directs.stream().mapToLong(PoolArenaMetric::numActiveAllocations).sum();
  directAllocations = directs.stream().mapToLong(PoolArenaMetric::numAllocations).sum();
  directDeallocations = directs.stream().mapToLong(PoolArenaMetric::numDeallocations).sum();
}
Example #4
Source File: NettyByteBufLeakHelper.java    From ambry with Apache License 2.0 6 votes vote down vote up 
/**
 * Method to call at any method that is tagged {@link org.junit.After} to verify there is no leak within this test case.
 */
public void afterTest() {
  if (cachedEnabled || disabled) {
    return;
  }

  PooledByteBufAllocatorMetric metric = PooledByteBufAllocator.DEFAULT.metric();
  List<PoolArenaMetric> heaps = metric.heapArenas();
  long currentActiveHeapAllocations = heaps.stream().mapToLong(PoolArenaMetric::numActiveAllocations).sum();
  long currentHeapAllocations = heaps.stream().mapToLong(PoolArenaMetric::numAllocations).sum();
  long currentHeapDeallocations = heaps.stream().mapToLong(PoolArenaMetric::numDeallocations).sum();

  List<PoolArenaMetric> directs = metric.directArenas();
  long currentActiveDirectAllocations = directs.stream().mapToLong(PoolArenaMetric::numActiveAllocations).sum();
  long currentDirectAllocations = directs.stream().mapToLong(PoolArenaMetric::numAllocations).sum();
  long currentDirectDeallocations = directs.stream().mapToLong(PoolArenaMetric::numDeallocations).sum();

  String message = String.format("DirectMemoryLeak: [allocation|deallocation] before test[%d|%d], after test[%d|%d]",
      directAllocations, directDeallocations, currentDirectAllocations, currentDirectDeallocations);
  Assert.assertEquals(message, activeDirectAllocations, currentActiveDirectAllocations);
  message = String.format("HeapMemoryLeak: [allocation|deallocation] before test[%d|%d], after test[%d|%d]",
      heapAllocations, heapDeallocations, currentHeapAllocations, currentHeapDeallocations);
  Assert.assertEquals(message, activeHeapAllocations, currentActiveHeapAllocations);
}
Example #5
Source File: AbstractDataBufferAllocatingTestCase.java    From java-technology-stack with MIT License 5 votes vote down vote up 
private void verifyAllocations() {
	if (this.bufferFactory instanceof NettyDataBufferFactory) {
		ByteBufAllocator allocator = ((NettyDataBufferFactory) this.bufferFactory).getByteBufAllocator();
		if (allocator instanceof PooledByteBufAllocator) {
			PooledByteBufAllocatorMetric metric = ((PooledByteBufAllocator) allocator).metric();
			long total = getAllocations(metric.directArenas()) + getAllocations(metric.heapArenas());
			assertEquals("ByteBuf Leak: " + total + " unreleased allocations", 0, total);
		}
	}
}
Example #6
Source File: ByteBufAllocatorMetrics.java    From reactor-netty with Apache License 2.0 4 votes vote down vote up 
void registerMetrics(String allocType, ByteBufAllocatorMetric metrics) {
	cache.computeIfAbsent(metrics.hashCode() + "", key -> {
		String[] tags = new String[] {ID, key, TYPE, allocType};

		Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + USED_HEAP_MEMORY, metrics, ByteBufAllocatorMetric::usedHeapMemory)
		     .description("The number of the bytes of the heap memory.")
		     .tags(tags)
		     .register(REGISTRY);

		Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + USED_DIRECT_MEMORY, metrics, ByteBufAllocatorMetric::usedDirectMemory)
		     .description("The number of the bytes of the direct memory.")
		     .tags(tags)
		     .register(REGISTRY);

		if (metrics instanceof PooledByteBufAllocatorMetric) {
			PooledByteBufAllocatorMetric pooledMetrics = (PooledByteBufAllocatorMetric) metrics;

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + HEAP_ARENAS, pooledMetrics, PooledByteBufAllocatorMetric::numHeapArenas)
			     .description("The number of heap arenas.")
			     .tags(tags)
			     .register(REGISTRY);

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + DIRECT_ARENAS, pooledMetrics, PooledByteBufAllocatorMetric::numDirectArenas)
			     .description("The number of direct arenas.")
			     .tags(tags)
			     .register(REGISTRY);

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + THREAD_LOCAL_CACHES, pooledMetrics, PooledByteBufAllocatorMetric::numThreadLocalCaches)
			     .description("The number of thread local caches.")
			     .tags(tags)
			     .register(REGISTRY);

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + TINY_CACHE_SIZE, pooledMetrics, PooledByteBufAllocatorMetric::tinyCacheSize)
			     .description("The size of the tiny cache.")
			     .tags(tags)
			     .register(REGISTRY);

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + SMALL_CACHE_SIZE, pooledMetrics, PooledByteBufAllocatorMetric::smallCacheSize)
			     .description("The size of the small cache.")
			     .tags(tags)
			     .register(REGISTRY);

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + NORMAL_CACHE_SIZE, pooledMetrics, PooledByteBufAllocatorMetric::normalCacheSize)
			     .description("The size of the normal cache.")
			     .tags(tags)
			     .register(REGISTRY);

			Gauge.builder(BYTE_BUF_ALLOCATOR_PREFIX + CHUNK_SIZE, pooledMetrics, PooledByteBufAllocatorMetric::chunkSize)
			     .description("The chunk size for an arena.")
			     .tags(tags)
			     .register(REGISTRY);
		}

		return metrics;
	});
}