/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.ignite.internal.processors.cache.distributed.near;
import java.util.Collection;
import java.util.Map;
import javax.cache.processor.EntryProcessor;
import javax.cache.processor.MutableEntry;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.IgniteDataStreamer;
import org.apache.ignite.cache.CacheMetrics;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.configuration.TransactionConfiguration;
import org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi;
import org.apache.ignite.spi.discovery.tcp.ipfinder.TcpDiscoveryIpFinder;
import org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder;
import org.apache.ignite.stream.StreamReceiver;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import static org.apache.ignite.cache.CacheMode.PARTITIONED;
import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_ASYNC;
import static org.apache.ignite.transactions.TransactionConcurrency.PESSIMISTIC;
import static org.apache.ignite.transactions.TransactionIsolation.REPEATABLE_READ;
/**
* Test for issue GG-3997 Total Hits and Misses display wrong value for in-memory database.
*/
public class GridCachePartitionedHitsAndMissesSelfTest extends GridCommonAbstractTest {
/** Amount of grids to start. */
private static final int GRID_CNT = 3;
/** Count of total numbers to generate. */
private static final int CNT = 2000;
/** IP Finder. */
private static final TcpDiscoveryIpFinder IP_FINDER = new TcpDiscoveryVmIpFinder(true);
/** {@inheritDoc} */
@Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception {
IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName);
// DiscoverySpi.
TcpDiscoverySpi disco = new TcpDiscoverySpi();
disco.setIpFinder(IP_FINDER);
cfg.setDiscoverySpi(disco);
// Cache.
cfg.setCacheConfiguration(cacheConfiguration());
TransactionConfiguration tCfg = new TransactionConfiguration();
tCfg.setDefaultTxConcurrency(PESSIMISTIC);
tCfg.setDefaultTxIsolation(REPEATABLE_READ);
cfg.setTransactionConfiguration(tCfg);
return cfg;
}
/**
* Cache configuration.
*
* @return Cache configuration.
* @throws Exception In case of error.
*/
protected CacheConfiguration cacheConfiguration() throws Exception {
CacheConfiguration cfg = defaultCacheConfiguration();
cfg.setCacheMode(PARTITIONED);
cfg.setWriteSynchronizationMode(FULL_ASYNC);
cfg.setEvictionPolicy(null);
cfg.setBackups(1);
cfg.setNearConfiguration(null);
cfg.setStatisticsEnabled(true);
return cfg;
}
/**
* This test is just a wrapper for org.apache.ignite.examples.datagrid.CachePopularNumbersExample
*
* @throws Exception If failed.
*/
public void testHitsAndMisses() throws Exception {
startGrids(GRID_CNT);
awaitPartitionMapExchange();
try {
final Ignite g = grid(0);
realTimePopulate(g);
// Check metrics for the whole cache.
long hits = 0;
long misses = 0;
for (int i = 0; i < GRID_CNT; i++) {
CacheMetrics m = grid(i).cache(DEFAULT_CACHE_NAME).localMetrics();
hits += m.getCacheHits();
misses += m.getCacheMisses();
}
// Check that invoke and loader updated metrics
assertEquals(CNT / 2, hits);
assertEquals(CNT / 2, misses);
}
finally {
stopAllGrids();
}
}
/**
* Populates cache with data streamer.
*
* @param g Grid.
*/
private static void realTimePopulate(final Ignite g) {
try (IgniteDataStreamer<Integer, Long> ldr = g.dataStreamer(DEFAULT_CACHE_NAME)) {
// Sets max values to 1 so cache metrics have correct values.
ldr.perNodeParallelOperations(1);
// Count closure which increments a count on remote node.
ldr.receiver(new IncrementingUpdater());
for (int i = 0; i < CNT; i++)
ldr.addData(i % (CNT / 2), 1L);
}
}
/**
* Increments value for key.
*/
private static class IncrementingUpdater implements StreamReceiver<Integer, Long> {
/** */
private static final EntryProcessor<Integer, Long, Void> INC = new EntryProcessor<Integer, Long, Void>() {
@Override public Void process(MutableEntry<Integer, Long> e, Object... args) {
Long val = e.getValue();
e.setValue(val == null ? 1 : val + 1);
return null;
}
};
/** {@inheritDoc} */
@Override public void receive(IgniteCache<Integer, Long> cache, Collection<Map.Entry<Integer, Long>> entries) {
for (Map.Entry<Integer, Long> entry : entries)
cache.invoke(entry.getKey(), INC);
}
}
}