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Posted to commits@ignite.apache.org by sb...@apache.org on 2015/11/20 15:21:21 UTC

[20/25] ignite git commit: IGNITE-426 Implemented failover for Continuous query.

http://git-wip-us.apache.org/repos/asf/ignite/blob/ce636372/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAbstractSelfTest.java
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diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAbstractSelfTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAbstractSelfTest.java
new file mode 100644
index 0000000..b311272
--- /dev/null
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAbstractSelfTest.java
@@ -0,0 +1,2235 @@
+/*
+ * 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.query.continuous;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicReference;
+import javax.cache.Cache;
+import javax.cache.CacheException;
+import javax.cache.event.CacheEntryEvent;
+import javax.cache.event.CacheEntryListenerException;
+import javax.cache.event.CacheEntryUpdatedListener;
+import javax.cache.processor.EntryProcessorException;
+import javax.cache.processor.MutableEntry;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.cache.CacheAtomicWriteOrderMode;
+import org.apache.ignite.cache.CacheAtomicityMode;
+import org.apache.ignite.cache.CacheEntryEventSerializableFilter;
+import org.apache.ignite.cache.CacheEntryProcessor;
+import org.apache.ignite.cache.CacheMode;
+import org.apache.ignite.cache.affinity.Affinity;
+import org.apache.ignite.cache.query.ContinuousQuery;
+import org.apache.ignite.cache.query.QueryCursor;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.cluster.ClusterTopologyException;
+import org.apache.ignite.configuration.CacheConfiguration;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.configuration.NearCacheConfiguration;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.IgniteKernal;
+import org.apache.ignite.internal.managers.communication.GridIoMessage;
+import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion;
+import org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopology;
+import org.apache.ignite.internal.processors.continuous.GridContinuousHandler;
+import org.apache.ignite.internal.processors.continuous.GridContinuousMessage;
+import org.apache.ignite.internal.processors.continuous.GridContinuousProcessor;
+import org.apache.ignite.internal.util.GridConcurrentHashSet;
+import org.apache.ignite.internal.util.lang.GridAbsPredicate;
+import org.apache.ignite.internal.util.typedef.C1;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.PA;
+import org.apache.ignite.internal.util.typedef.PAX;
+import org.apache.ignite.internal.util.typedef.T2;
+import org.apache.ignite.internal.util.typedef.T3;
+import org.apache.ignite.lang.IgniteInClosure;
+import org.apache.ignite.lang.IgniteOutClosure;
+import org.apache.ignite.plugin.extensions.communication.Message;
+import org.apache.ignite.resources.LoggerResource;
+import org.apache.ignite.spi.IgniteSpiException;
+import org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi;
+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.testframework.GridTestUtils;
+import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
+import org.apache.ignite.transactions.Transaction;
+
+import static java.util.concurrent.TimeUnit.MINUTES;
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static org.apache.ignite.cache.CacheAtomicWriteOrderMode.PRIMARY;
+import static org.apache.ignite.cache.CacheMode.REPLICATED;
+import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_SYNC;
+
+/**
+ *
+ */
+public abstract class CacheContinuousQueryFailoverAbstractSelfTest extends GridCommonAbstractTest {
+    /** */
+    private static TcpDiscoveryIpFinder ipFinder = new TcpDiscoveryVmIpFinder(true);
+
+    /** */
+    private static final int BACKUP_ACK_THRESHOLD = 100;
+
+    /** */
+    private static volatile boolean err;
+
+    /** */
+    private boolean client;
+
+    /** */
+    private int backups = 1;
+
+    /** {@inheritDoc} */
+    @Override protected IgniteConfiguration getConfiguration(String gridName) throws Exception {
+        IgniteConfiguration cfg = super.getConfiguration(gridName);
+
+        ((TcpDiscoverySpi)cfg.getDiscoverySpi()).setForceServerMode(true);
+        ((TcpDiscoverySpi)cfg.getDiscoverySpi()).setIpFinder(ipFinder);
+
+        TestCommunicationSpi commSpi = new TestCommunicationSpi();
+
+        commSpi.setSharedMemoryPort(-1);
+        commSpi.setIdleConnectionTimeout(100);
+
+        cfg.setCommunicationSpi(commSpi);
+
+        CacheConfiguration ccfg = new CacheConfiguration();
+
+        ccfg.setCacheMode(cacheMode());
+        ccfg.setAtomicityMode(atomicityMode());
+        ccfg.setAtomicWriteOrderMode(writeOrderMode());
+        ccfg.setBackups(backups);
+        ccfg.setWriteSynchronizationMode(FULL_SYNC);
+        ccfg.setNearConfiguration(nearCacheConfiguration());
+
+        cfg.setCacheConfiguration(ccfg);
+
+        cfg.setClientMode(client);
+
+        return cfg;
+    }
+
+    /**
+     * @return Near cache configuration.
+     */
+    protected NearCacheConfiguration nearCacheConfiguration() {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected long getTestTimeout() {
+        return 5 * 60_000;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void beforeTest() throws Exception {
+        super.beforeTest();
+
+        err = false;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void afterTest() throws Exception {
+        super.afterTest();
+
+        stopAllGrids();
+    }
+
+    /**
+     * @return Cache mode.
+     */
+    protected abstract CacheMode cacheMode();
+
+    /**
+     * @return Atomicity mode.
+     */
+    protected abstract CacheAtomicityMode atomicityMode();
+
+    /**
+     * @return Write order mode for atomic cache.
+     */
+    protected CacheAtomicWriteOrderMode writeOrderMode() {
+        return PRIMARY;
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testFirstFilteredEvent() throws Exception {
+        this.backups = 2;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        IgniteCache<Object, Object> qryClnCache = qryClient.cache(null);
+
+        final CacheEventListener3 lsnr = new CacheEventListener3();
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        qry.setRemoteFilter(new CacheEventFilter());
+
+        try (QueryCursor<?> cur = qryClnCache.query(qry)) {
+            List<Integer> keys = testKeys(grid(0).cache(null), 1);
+
+            for (Integer key : keys)
+                qryClnCache.put(key, -1);
+
+            qryClnCache.put(keys.get(0), 100);
+        }
+
+        assertEquals(lsnr.evts.size(), 1);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testRebalanceVersion() throws Exception {
+        Ignite ignite0 = startGrid(0);
+        GridDhtPartitionTopology top0 = ((IgniteKernal)ignite0).context().cache().context().cacheContext(1).topology();
+
+        assertTrue(top0.rebalanceFinished(new AffinityTopologyVersion(1)));
+        assertFalse(top0.rebalanceFinished(new AffinityTopologyVersion(2)));
+
+        Ignite ignite1 = startGrid(1);
+        GridDhtPartitionTopology top1 = ((IgniteKernal)ignite1).context().cache().context().cacheContext(1).topology();
+
+        waitRebalanceFinished(ignite0, 2);
+        waitRebalanceFinished(ignite1, 2);
+
+        assertFalse(top0.rebalanceFinished(new AffinityTopologyVersion(3)));
+        assertFalse(top1.rebalanceFinished(new AffinityTopologyVersion(3)));
+
+        Ignite ignite2 = startGrid(2);
+        GridDhtPartitionTopology top2 = ((IgniteKernal)ignite2).context().cache().context().cacheContext(1).topology();
+
+        waitRebalanceFinished(ignite0, 3);
+        waitRebalanceFinished(ignite1, 3);
+        waitRebalanceFinished(ignite2, 3);
+
+        assertFalse(top0.rebalanceFinished(new AffinityTopologyVersion(4)));
+        assertFalse(top1.rebalanceFinished(new AffinityTopologyVersion(4)));
+        assertFalse(top2.rebalanceFinished(new AffinityTopologyVersion(4)));
+
+        client = true;
+
+        Ignite ignite3 = startGrid(3);
+        GridDhtPartitionTopology top3 = ((IgniteKernal)ignite3).context().cache().context().cacheContext(1).topology();
+
+        assertTrue(top0.rebalanceFinished(new AffinityTopologyVersion(4)));
+        assertTrue(top1.rebalanceFinished(new AffinityTopologyVersion(4)));
+        assertTrue(top2.rebalanceFinished(new AffinityTopologyVersion(4)));
+        assertTrue(top3.rebalanceFinished(new AffinityTopologyVersion(4)));
+
+        stopGrid(1);
+
+        waitRebalanceFinished(ignite0, 5);
+        waitRebalanceFinished(ignite2, 5);
+        waitRebalanceFinished(ignite3, 5);
+    }
+
+    /**
+     * @param ignite Ignite.
+     * @param topVer Topology version.
+     * @throws Exception If failed.
+     */
+    private void waitRebalanceFinished(Ignite ignite, long topVer) throws Exception {
+        final AffinityTopologyVersion topVer0 = new AffinityTopologyVersion(topVer);
+
+        final GridDhtPartitionTopology top =
+            ((IgniteKernal)ignite).context().cache().context().cacheContext(1).topology();
+
+        GridTestUtils.waitForCondition(new GridAbsPredicate() {
+            @Override public boolean apply() {
+                return top.rebalanceFinished(topVer0);
+            }
+        }, 5000);
+
+        assertTrue(top.rebalanceFinished(topVer0));
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testOneBackup() throws Exception {
+        checkBackupQueue(1, false);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testOneBackupClientUpdate() throws Exception {
+        checkBackupQueue(1, true);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testUpdatePartitionCounter() throws Exception {
+        this.backups = 2;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        final Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        Map<Integer, Long> updateCntrs = new HashMap<>();
+
+        ThreadLocalRandom rnd = ThreadLocalRandom.current();
+
+        int killedNode = rnd.nextInt(SRV_NODES);
+
+        for (int i = 0; i < 10; i++) {
+            List<Integer> keys = testKeys(grid(0).cache(null), 10);
+
+            for (Integer key : keys) {
+                IgniteCache cache = null;
+
+                if (rnd.nextBoolean())
+                    cache = qryClient.cache(null);
+                else {
+                    for (int j = 0; j < 10; j++) {
+                        int nodeIdx = rnd.nextInt(SRV_NODES);
+
+                        if (killedNode != nodeIdx) {
+                            cache = grid(nodeIdx).cache(null);
+
+                            break;
+                        }
+                    }
+
+                    if (cache == null)
+                        throw new Exception("Failed to find a server node.");
+                }
+
+                cache.put(key, key);
+
+                int part = qryClient.affinity(null).partition(key);
+
+                Long cntr = updateCntrs.get(part);
+
+                if (cntr == null)
+                    cntr = 0L;
+
+                updateCntrs.put(part, ++cntr);
+            }
+
+            checkPartCounter(SRV_NODES, killedNode, updateCntrs);
+
+            stopGrid(killedNode);
+
+            awaitPartitionMapExchange();
+
+            checkPartCounter(SRV_NODES, killedNode, updateCntrs);
+
+            startGrid(killedNode);
+
+            awaitPartitionMapExchange();
+
+            checkPartCounter(SRV_NODES, killedNode, updateCntrs);
+
+            killedNode = rnd.nextInt(SRV_NODES);
+        }
+    }
+
+    /**
+     * @param nodes Count nodes.
+     * @param killedNodeIdx Killed node index.
+     * @param updCntrs Update counters.
+     * @return {@code True} if counters matches.
+     */
+    private boolean checkPartCounter(int nodes, int killedNodeIdx, Map<Integer, Long> updCntrs) {
+        for (int i = 0; i < nodes; i++) {
+            if (i == killedNodeIdx)
+                continue;
+
+            Affinity<Object> aff = grid(i).affinity(null);
+
+            Map<Integer, Long> act = grid(i).cachex(null).context().topology().updateCounters();
+
+            for (Map.Entry<Integer, Long> e : updCntrs.entrySet()) {
+                if (aff.mapPartitionToPrimaryAndBackups(e.getKey()).contains(grid(i).localNode()))
+                    assertEquals(e.getValue(), act.get(e.getKey()));
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testStartStopQuery() throws Exception {
+        this.backups = 1;
+
+        final int SRV_NODES = 3;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        final Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        IgniteCache<Object, Object> clnCache = qryClient.cache(null);
+
+        IgniteOutClosure<IgniteCache<Integer, Integer>> rndCache =
+            new IgniteOutClosure<IgniteCache<Integer, Integer>>() {
+                int cnt = 0;
+
+                @Override public IgniteCache<Integer, Integer> apply() {
+                    ++cnt;
+
+                    return grid(cnt % SRV_NODES + 1).cache(null);
+                }
+            };
+
+        Ignite igniteSrv = ignite(0);
+
+        IgniteCache<Object, Object> srvCache = igniteSrv.cache(null);
+
+        List<Integer> keys = testKeys(srvCache, 3);
+
+        int keyCnt = keys.size();
+
+        for (int j = 0; j < 50; ++j) {
+            ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+            final CacheEventListener3 lsnr = new CacheEventListener3();
+
+            qry.setLocalListener(lsnr);
+
+            qry.setRemoteFilter(lsnr);
+
+            int keyIter = 0;
+
+            for (; keyIter < keyCnt / 2; keyIter++) {
+                int key = keys.get(keyIter);
+
+                rndCache.apply().put(key, key);
+            }
+
+            assert lsnr.evts.isEmpty();
+
+            QueryCursor<Cache.Entry<Object, Object>> query = clnCache.query(qry);
+
+            Map<Object, T2<Object, Object>> updates = new HashMap<>();
+
+            final List<T3<Object, Object, Object>> expEvts = new ArrayList<>();
+
+            Affinity<Object> aff = affinity(srvCache);
+
+            boolean filtered = false;
+
+            for (; keyIter < keys.size(); keyIter++) {
+                int key = keys.get(keyIter);
+
+                int val = filtered ? 1 : 2;
+
+                log.info("Put [key=" + key + ", val=" + val + ", part=" + aff.partition(key) + ']');
+
+                T2<Object, Object> t = updates.get(key);
+
+                if (t == null) {
+                    // Check filtered.
+                    if (!filtered) {
+                        updates.put(key, new T2<>((Object)val, null));
+
+                        expEvts.add(new T3<>((Object)key, (Object)val, null));
+                    }
+                }
+                else {
+                    // Check filtered.
+                    if (!filtered) {
+                        updates.put(key, new T2<>((Object)val, (Object)t.get1()));
+
+                        expEvts.add(new T3<>((Object)key, (Object)val, (Object)t.get1()));
+                    }
+                }
+
+                rndCache.apply().put(key, val);
+
+                filtered = !filtered;
+            }
+
+            checkEvents(expEvts, lsnr, false);
+
+            query.close();
+        }
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testLeftPrimaryAndBackupNodes() throws Exception {
+        if (cacheMode() == REPLICATED)
+            return;
+
+        this.backups = 1;
+
+        final int SRV_NODES = 3;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        final Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        final CacheEventListener3 lsnr = new CacheEventListener3();
+
+        qry.setLocalListener(lsnr);
+
+        qry.setRemoteFilter(lsnr);
+
+        IgniteCache<Object, Object> clnCache = qryClient.cache(null);
+
+        QueryCursor<Cache.Entry<Object, Object>> query = clnCache.query(qry);
+
+        Ignite igniteSrv = ignite(0);
+
+        IgniteCache<Object, Object> srvCache = igniteSrv.cache(null);
+
+        Affinity<Object> aff = affinity(srvCache);
+
+        List<Integer> keys = testKeys(srvCache, 1);
+
+        Collection<ClusterNode> nodes = aff.mapPartitionToPrimaryAndBackups(keys.get(0));
+
+        Collection<UUID> ids = F.transform(nodes, new C1<ClusterNode, UUID>() {
+            @Override public UUID apply(ClusterNode node) {
+                return node.id();
+            }
+        });
+
+        int keyIter = 0;
+
+        boolean filtered = false;
+
+        Map<Object, T2<Object, Object>> updates = new HashMap<>();
+
+        final List<T3<Object, Object, Object>> expEvts = new ArrayList<>();
+
+        for (; keyIter < keys.size() / 2; keyIter++) {
+            int key = keys.get(keyIter);
+
+            log.info("Put [key=" + key + ", part=" + aff.partition(key)
+                + ", filtered=" + filtered + ']');
+
+            T2<Object, Object> t = updates.get(key);
+
+            Integer val = filtered ?
+                (key % 2 == 0 ? key + 1 : key) :
+                key * 2;
+
+            if (t == null) {
+                updates.put(key, new T2<>((Object)val, null));
+
+                if (!filtered)
+                    expEvts.add(new T3<>((Object)key, (Object)val, null));
+            }
+            else {
+                updates.put(key, new T2<>((Object)val, (Object)key));
+
+                if (!filtered)
+                    expEvts.add(new T3<>((Object)key, (Object)val, (Object)key));
+            }
+
+            srvCache.put(key, val);
+
+            filtered = !filtered;
+        }
+
+        checkEvents(expEvts, lsnr, false);
+
+        List<Thread> stopThreads = new ArrayList<>(3);
+
+        // Stop nodes which owning this partition.
+        for (int i = 0; i < SRV_NODES; i++) {
+            Ignite ignite = ignite(i);
+
+            if (ids.contains(ignite.cluster().localNode().id())) {
+                final int i0 = i;
+
+                TestCommunicationSpi spi = (TestCommunicationSpi)ignite.configuration().getCommunicationSpi();
+
+                spi.skipAllMsg = true;
+
+                stopThreads.add(new Thread() {
+                    @Override public void run() {
+                        stopGrid(i0, true);
+                    }
+                });
+            }
+        }
+
+        // Stop and join threads.
+        for (Thread t : stopThreads)
+            t.start();
+
+        for (Thread t : stopThreads)
+            t.join();
+
+        assert GridTestUtils.waitForCondition(new PA() {
+            @Override public boolean apply() {
+                // (SRV_NODES + 1 client node) - 1 primary - backup nodes.
+                return qryClient.cluster().nodes().size() == (SRV_NODES + 1 /** client node */)
+                    - 1 /** Primary node */ - backups;
+            }
+        }, 5000L);
+
+        for (; keyIter < keys.size(); keyIter++) {
+            int key = keys.get(keyIter);
+
+            log.info("Put [key=" + key + ", filtered=" + filtered + ']');
+
+            T2<Object, Object> t = updates.get(key);
+
+            Integer val = filtered ?
+                (key % 2 == 0 ? key + 1 : key) :
+                key * 2;
+
+            if (t == null) {
+                updates.put(key, new T2<>((Object)val, null));
+
+                if (!filtered)
+                    expEvts.add(new T3<>((Object)key, (Object)val, null));
+            }
+            else {
+                updates.put(key, new T2<>((Object)val, (Object)key));
+
+                if (!filtered)
+                    expEvts.add(new T3<>((Object)key, (Object)val, (Object)key));
+            }
+
+            clnCache.put(key, val);
+
+            filtered = !filtered;
+        }
+
+        checkEvents(expEvts, lsnr, false);
+
+        query.close();
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testRemoteFilter() throws Exception {
+        this.backups = 2;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        IgniteCache<Object, Object> qryClientCache = qryClient.cache(null);
+
+        if (cacheMode() != REPLICATED)
+            assertEquals(backups, qryClientCache.getConfiguration(CacheConfiguration.class).getBackups());
+
+        Affinity<Object> aff = qryClient.affinity(null);
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        final CacheEventListener3 lsnr = new CacheEventListener3();
+
+        qry.setLocalListener(lsnr);
+
+        qry.setRemoteFilter(lsnr);
+
+        int PARTS = 10;
+
+        QueryCursor<?> cur = qryClientCache.query(qry);
+
+        Map<Object, T2<Object, Object>> updates = new HashMap<>();
+
+        final List<T3<Object, Object, Object>> expEvts = new ArrayList<>();
+
+        for (int i = 0; i < (atomicityMode() == CacheAtomicityMode.ATOMIC ? SRV_NODES - 1 : SRV_NODES - 2); i++) {
+            log.info("Stop iteration: " + i);
+
+            TestCommunicationSpi spi = (TestCommunicationSpi)ignite(i).configuration().getCommunicationSpi();
+
+            Ignite ignite = ignite(i);
+
+            IgniteCache<Object, Object> cache = ignite.cache(null);
+
+            List<Integer> keys = testKeys(cache, PARTS);
+
+            boolean first = true;
+
+            boolean filtered = false;
+
+            for (Integer key : keys) {
+                log.info("Put [node=" + ignite.name() + ", key=" + key + ", part=" + aff.partition(key)
+                    + ", filtered=" + filtered + ']');
+
+                T2<Object, Object> t = updates.get(key);
+
+                Integer val = filtered ?
+                    (key % 2 == 0 ? key + 1 : key) :
+                    key * 2;
+
+                if (t == null) {
+                    updates.put(key, new T2<>((Object)val, null));
+
+                    if (!filtered)
+                        expEvts.add(new T3<>((Object)key, (Object)val, null));
+                }
+                else {
+                    updates.put(key, new T2<>((Object)val, (Object)key));
+
+                    if (!filtered)
+                        expEvts.add(new T3<>((Object)key, (Object)val, (Object)key));
+                }
+
+                cache.put(key, val);
+
+                if (first) {
+                    spi.skipMsg = true;
+
+                    first = false;
+                }
+
+                filtered = !filtered;
+            }
+
+            stopGrid(i);
+
+            boolean check = GridTestUtils.waitForCondition(new PAX() {
+                @Override public boolean applyx() throws IgniteCheckedException {
+                    return expEvts.size() == lsnr.keys.size();
+                }
+            }, 5000L);
+
+            if (!check) {
+                Set<Integer> keys0 = new HashSet<>(keys);
+
+                keys0.removeAll(lsnr.keys);
+
+                log.info("Missed events for keys: " + keys0);
+
+                fail("Failed to wait for notifications [exp=" + keys.size() + ", left=" + keys0.size() + ']');
+            }
+
+            checkEvents(expEvts, lsnr, false);
+        }
+
+        cur.close();
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testThreeBackups() throws Exception {
+        if (cacheMode() == REPLICATED)
+            return;
+
+        checkBackupQueue(3, false);
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isDebug() {
+        return true;
+    }
+
+    /**
+     * @param backups Number of backups.
+     * @param updateFromClient If {@code true} executes cache update from client node.
+     * @throws Exception If failed.
+     */
+    private void checkBackupQueue(int backups, boolean updateFromClient) throws Exception {
+        this.backups = atomicityMode() == CacheAtomicityMode.ATOMIC ? backups :
+            backups < 2 ? 2 : backups;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        IgniteCache<Object, Object> qryClientCache = qryClient.cache(null);
+
+        Affinity<Object> aff = qryClient.affinity(null);
+
+        CacheEventListener1 lsnr = new CacheEventListener1(false);
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        QueryCursor<?> cur = qryClientCache.query(qry);
+
+        int PARTS = 10;
+
+        Map<Object, T2<Object, Object>> updates = new HashMap<>();
+
+        List<T3<Object, Object, Object>> expEvts = new ArrayList<>();
+
+        for (int i = 0; i < (atomicityMode() == CacheAtomicityMode.ATOMIC ? SRV_NODES - 1 : SRV_NODES - 2); i++) {
+            log.info("Stop iteration: " + i);
+
+            TestCommunicationSpi spi = (TestCommunicationSpi)ignite(i).configuration().getCommunicationSpi();
+
+            Ignite ignite = ignite(i);
+
+            IgniteCache<Object, Object> cache = ignite.cache(null);
+
+            List<Integer> keys = testKeys(cache, PARTS);
+
+            CountDownLatch latch = new CountDownLatch(keys.size());
+
+            lsnr.latch = latch;
+
+            boolean first = true;
+
+            for (Integer key : keys) {
+                log.info("Put [node=" + ignite.name() + ", key=" + key + ", part=" + aff.partition(key) + ']');
+
+                T2<Object, Object> t = updates.get(key);
+
+                if (updateFromClient) {
+                    if (atomicityMode() == CacheAtomicityMode.TRANSACTIONAL) {
+                        try (Transaction tx = qryClient.transactions().txStart()) {
+                            qryClientCache.put(key, key);
+
+                            tx.commit();
+                        }
+                        catch (CacheException | ClusterTopologyException e) {
+                            log.warning("Failed put. [Key=" + key + ", val=" + key + "]");
+
+                            continue;
+                        }
+                    }
+                    else
+                        qryClientCache.put(key, key);
+                }
+                else {
+                    if (atomicityMode() == CacheAtomicityMode.TRANSACTIONAL) {
+                        try (Transaction tx = ignite.transactions().txStart()) {
+                            cache.put(key, key);
+
+                            tx.commit();
+                        }
+                        catch (CacheException | ClusterTopologyException e) {
+                            log.warning("Failed put. [Key=" + key + ", val=" + key + "]");
+
+                            continue;
+                        }
+                    }
+                    else
+                        cache.put(key, key);
+                }
+
+                if (t == null) {
+                    updates.put(key, new T2<>((Object)key, null));
+
+                    expEvts.add(new T3<>((Object)key, (Object)key, null));
+                }
+                else {
+                    updates.put(key, new T2<>((Object)key, (Object)key));
+
+                    expEvts.add(new T3<>((Object)key, (Object)key, (Object)key));
+                }
+
+                if (first) {
+                    spi.skipMsg = true;
+
+                    first = false;
+                }
+            }
+
+            stopGrid(i);
+
+            if (!latch.await(5, SECONDS)) {
+                Set<Integer> keys0 = new HashSet<>(keys);
+
+                keys0.removeAll(lsnr.keys);
+
+                log.info("Missed events for keys: " + keys0);
+
+                fail("Failed to wait for notifications [exp=" + keys.size() + ", left=" + lsnr.latch.getCount() + ']');
+            }
+
+            checkEvents(expEvts, lsnr);
+        }
+
+        for (int i = 0; i < (atomicityMode() == CacheAtomicityMode.ATOMIC ? SRV_NODES - 1 : SRV_NODES - 2); i++) {
+            log.info("Start iteration: " + i);
+
+            Ignite ignite = startGrid(i);
+
+            IgniteCache<Object, Object> cache = ignite.cache(null);
+
+            List<Integer> keys = testKeys(cache, PARTS);
+
+            CountDownLatch latch = new CountDownLatch(keys.size());
+
+            lsnr.latch = latch;
+
+            for (Integer key : keys) {
+                log.info("Put [node=" + ignite.name() + ", key=" + key + ", part=" + aff.partition(key) + ']');
+
+                T2<Object, Object> t = updates.get(key);
+
+                if (t == null) {
+                    updates.put(key, new T2<>((Object)key, null));
+
+                    expEvts.add(new T3<>((Object)key, (Object)key, null));
+                }
+                else {
+                    updates.put(key, new T2<>((Object)key, (Object)key));
+
+                    expEvts.add(new T3<>((Object)key, (Object)key, (Object)key));
+                }
+
+                if (updateFromClient)
+                    qryClientCache.put(key, key);
+                else
+                    cache.put(key, key);
+            }
+
+            if (!latch.await(10, SECONDS)) {
+                Set<Integer> keys0 = new HashSet<>(keys);
+
+                keys0.removeAll(lsnr.keys);
+
+                log.info("Missed events for keys: " + keys0);
+
+                fail("Failed to wait for notifications [exp=" + keys.size() + ", left=" + lsnr.latch.getCount() + ']');
+            }
+
+            checkEvents(expEvts, lsnr);
+        }
+
+        cur.close();
+
+        assertFalse("Unexpected error during test, see log for details.", err);
+    }
+
+    /**
+     * @param expEvts Expected events.
+     * @param lsnr Listener.
+     */
+    private void checkEvents(List<T3<Object, Object, Object>> expEvts, CacheEventListener1 lsnr) {
+        for (T3<Object, Object, Object> exp : expEvts) {
+            CacheEntryEvent<?, ?> e = lsnr.evts.get(exp.get1());
+
+            assertNotNull("No event for key: " + exp.get1(), e);
+            assertEquals("Unexpected value: " + e, exp.get2(), e.getValue());
+        }
+
+        expEvts.clear();
+
+        lsnr.evts.clear();
+    }
+
+    /**
+     * @param expEvts Expected events.
+     * @param lsnr Listener.
+     * @param lostAllow If {@code true} than won't assert on lost events.
+     */
+    private void checkEvents(final List<T3<Object, Object, Object>> expEvts, final CacheEventListener2 lsnr,
+        boolean lostAllow) throws Exception {
+        checkEvents(expEvts, lsnr, lostAllow, true);
+    }
+
+    /**
+     * @param expEvts Expected events.
+     * @param lsnr Listener.
+     * @param lostAllow If {@code true} than won't assert on lost events.
+     */
+    private void checkEvents(final List<T3<Object, Object, Object>> expEvts, final CacheEventListener2 lsnr,
+        boolean lostAllow, boolean wait) throws Exception {
+        if (wait)
+            GridTestUtils.waitForCondition(new PA() {
+                @Override public boolean apply() {
+                    return expEvts.size() == lsnr.size();
+                }
+            }, 2000L);
+
+        Map<Integer, List<CacheEntryEvent<?, ?>>> prevMap = new HashMap<>(lsnr.evts.size());
+
+        for (Map.Entry<Integer, List<CacheEntryEvent<?, ?>>> e : lsnr.evts.entrySet())
+            prevMap.put(e.getKey(), new ArrayList<>(e.getValue()));
+
+        List<T3<Object, Object, Object>> lostEvents = new ArrayList<>();
+
+        for (T3<Object, Object, Object> exp : expEvts) {
+            List<CacheEntryEvent<?, ?>> rcvdEvts = lsnr.evts.get(exp.get1());
+
+            if (F.eq(exp.get2(), exp.get3()))
+                continue;
+
+            if (rcvdEvts == null || rcvdEvts.isEmpty()) {
+                lostEvents.add(exp);
+
+                continue;
+            }
+
+            Iterator<CacheEntryEvent<?, ?>> iter = rcvdEvts.iterator();
+
+            boolean found = false;
+
+            while (iter.hasNext()) {
+                CacheEntryEvent<?, ?> e = iter.next();
+
+                if ((exp.get2() != null && e.getValue() != null && exp.get2().equals(e.getValue()))
+                    && equalOldValue(e, exp)) {
+                    found = true;
+
+                    iter.remove();
+
+                    break;
+                }
+            }
+
+            // Lost event is acceptable.
+            if (!found)
+                lostEvents.add(exp);
+        }
+
+        boolean dup = false;
+
+        // Check duplicate.
+        if (!lsnr.evts.isEmpty()) {
+            for (List<CacheEntryEvent<?, ?>> evts : lsnr.evts.values()) {
+                if (!evts.isEmpty()) {
+                    for (CacheEntryEvent<?, ?> e : evts) {
+                        boolean found = false;
+
+                        for (T3<Object, Object, Object> lostEvt : lostEvents) {
+                            if (e.getKey().equals(lostEvt.get1()) && e.getValue().equals(lostEvt.get2())) {
+                                found = true;
+
+                                lostEvents.remove(lostEvt);
+
+                                break;
+                            }
+                        }
+
+                        if (!found) {
+                            dup = true;
+
+                            break;
+                        }
+                    }
+                }
+            }
+
+            if (dup) {
+                for (List<CacheEntryEvent<?, ?>> e : lsnr.evts.values()) {
+                    if (!e.isEmpty()) {
+                        for (CacheEntryEvent<?, ?> event : e)
+                            log.error("Got duplicate event: " + event);
+                    }
+                }
+            }
+        }
+
+        if (!lostAllow && lostEvents.size() > 100) {
+            log.error("Lost event cnt: " + lostEvents.size());
+
+            for (T3<Object, Object, Object> e : lostEvents)
+                log.error("Lost event: " + e);
+
+            fail("Lose events, see log for details.");
+        }
+
+        log.error("Lost event cnt: " + lostEvents.size());
+
+        expEvts.clear();
+
+        lsnr.evts.clear();
+        lsnr.vals.clear();
+    }
+
+    /**
+     * @param e Event
+     * @param expVals expected value
+     * @return {@code True} if entries has the same key, value and oldValue. If cache start without backups
+     *          than oldValue ignoring in comparison.
+     */
+    private boolean equalOldValue(CacheEntryEvent<?, ?> e, T3<Object, Object, Object> expVals) {
+        return (e.getOldValue() == null && expVals.get3() == null) // Both null
+            || (e.getOldValue() != null && expVals.get3() != null  // Equals
+                && e.getOldValue().equals(expVals.get3()))
+            || (backups == 0); // If we start without backup than oldValue might be lose.
+    }
+
+    /**
+     * @param expEvts Expected events.
+     * @param lsnr Listener.
+     */
+    private void checkEvents(final List<T3<Object, Object, Object>> expEvts, final CacheEventListener3 lsnr,
+        boolean allowLoseEvent) throws Exception {
+        if (!allowLoseEvent)
+            assert GridTestUtils.waitForCondition(new PA() {
+                @Override public boolean apply() {
+                    return lsnr.evts.size() == expEvts.size();
+                }
+            }, 2000L);
+
+        for (T3<Object, Object, Object> exp : expEvts) {
+            CacheEntryEvent<?, ?> e = lsnr.evts.get(exp.get1());
+
+            assertNotNull("No event for key: " + exp.get1(), e);
+            assertEquals("Unexpected value: " + e, exp.get2(), e.getValue());
+
+            if (allowLoseEvent)
+                lsnr.evts.remove(exp.get1());
+        }
+
+        if (allowLoseEvent)
+            assert lsnr.evts.isEmpty();
+
+        expEvts.clear();
+
+        lsnr.evts.clear();
+        lsnr.keys.clear();
+    }
+
+    /**
+     * @param cache Cache.
+     * @param parts Number of partitions.
+     * @return Keys.
+     */
+    private List<Integer> testKeys(IgniteCache<Object, Object> cache, int parts) {
+        Ignite ignite = cache.unwrap(Ignite.class);
+
+        List<Integer> res = new ArrayList<>();
+
+        Affinity<Object> aff = ignite.affinity(cache.getName());
+
+        ClusterNode node = ignite.cluster().localNode();
+
+        int[] nodeParts = aff.primaryPartitions(node);
+
+        final int KEYS_PER_PART = 50;
+
+        for (int i = 0; i < parts; i++) {
+            int part = nodeParts[i];
+
+            int cnt = 0;
+
+            for (int key = 0; key < 100_000; key++) {
+                if (aff.partition(key) == part && aff.isPrimary(node, key)) {
+                    res.add(key);
+
+                    if (++cnt == KEYS_PER_PART)
+                        break;
+                }
+            }
+
+            assertEquals(KEYS_PER_PART, cnt);
+        }
+
+        assertEquals(parts * KEYS_PER_PART, res.size());
+
+        return res;
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testBackupQueueCleanupClientQuery() throws Exception {
+        startGridsMultiThreaded(2);
+
+        client = true;
+
+        Ignite qryClient = startGrid(2);
+
+        CacheEventListener1 lsnr = new CacheEventListener1(false);
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        QueryCursor<?> cur = qryClient.cache(null).query(qry);
+
+        final Collection<Object> backupQueue = backupQueue(ignite(1));
+
+        assertEquals(0, backupQueue.size());
+
+        IgniteCache<Object, Object> cache0 = ignite(0).cache(null);
+
+        List<Integer> keys = primaryKeys(cache0, BACKUP_ACK_THRESHOLD);
+
+        CountDownLatch latch = new CountDownLatch(keys.size());
+
+        lsnr.latch = latch;
+
+        for (Integer key : keys) {
+            log.info("Put: " + key);
+
+            cache0.put(key, key);
+        }
+
+        GridTestUtils.waitForCondition(new GridAbsPredicate() {
+            @Override public boolean apply() {
+                return backupQueue.isEmpty();
+            }
+        }, 2000);
+
+        assertTrue("Backup queue is not cleared: " + backupQueue, backupQueue.size() < BACKUP_ACK_THRESHOLD);
+
+        if (!latch.await(5, SECONDS))
+            fail("Failed to wait for notifications [exp=" + keys.size() + ", left=" + lsnr.latch.getCount() + ']');
+
+        keys = primaryKeys(cache0, BACKUP_ACK_THRESHOLD / 2);
+
+        latch = new CountDownLatch(keys.size());
+
+        lsnr.latch = latch;
+
+        for (Integer key : keys)
+            cache0.put(key, key);
+
+        final long ACK_FREQ = 5000;
+
+        GridTestUtils.waitForCondition(new GridAbsPredicate() {
+            @Override public boolean apply() {
+                return backupQueue.isEmpty();
+            }
+        }, ACK_FREQ + 2000);
+
+        assertTrue("Backup queue is not cleared: " + backupQueue, backupQueue.isEmpty());
+
+        if (!latch.await(5, SECONDS))
+            fail("Failed to wait for notifications [exp=" + keys.size() + ", left=" + lsnr.latch.getCount() + ']');
+
+        cur.close();
+
+        assertFalse("Unexpected error during test, see log for details.", err);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testBackupQueueCleanupServerQuery() throws Exception {
+        Ignite qryClient = startGridsMultiThreaded(2);
+
+        CacheEventListener1 lsnr = new CacheEventListener1(false);
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        IgniteCache<Object, Object> cache = qryClient.cache(null);
+
+        QueryCursor<?> cur = cache.query(qry);
+
+        final Collection<Object> backupQueue = backupQueue(ignite(1));
+
+        assertEquals(0, backupQueue.size());
+
+        List<Integer> keys = primaryKeys(cache, BACKUP_ACK_THRESHOLD);
+
+        CountDownLatch latch = new CountDownLatch(keys.size());
+
+        lsnr.latch = latch;
+
+        for (Integer key : keys) {
+            log.info("Put: " + key);
+
+            cache.put(key, key);
+        }
+
+        GridTestUtils.waitForCondition(new GridAbsPredicate() {
+            @Override public boolean apply() {
+                return backupQueue.isEmpty();
+            }
+        }, 3000);
+
+        assertTrue("Backup queue is not cleared: " + backupQueue, backupQueue.size() < BACKUP_ACK_THRESHOLD);
+
+        if (!latch.await(5, SECONDS))
+            fail("Failed to wait for notifications [exp=" + keys.size() + ", left=" + lsnr.latch.getCount() + ']');
+
+        cur.close();
+    }
+
+    /**
+     * @param ignite Ignite.
+     * @return Backup queue for test query.
+     */
+    private Collection<Object> backupQueue(Ignite ignite) {
+        GridContinuousProcessor proc = ((IgniteKernal)ignite).context().continuous();
+
+        ConcurrentMap<Object, Object> infos = GridTestUtils.getFieldValue(proc, "rmtInfos");
+
+        Collection<Object> backupQueue = null;
+
+        for (Object info : infos.values()) {
+            GridContinuousHandler hnd = GridTestUtils.getFieldValue(info, "hnd");
+
+            if (hnd.isForQuery() && hnd.cacheName() == null) {
+                backupQueue = GridTestUtils.getFieldValue(hnd, "backupQueue");
+
+                break;
+            }
+        }
+
+        assertNotNull(backupQueue);
+
+        return backupQueue;
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testFailoverStartStopBackup() throws Exception {
+        failoverStartStopFilter(2);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testStartStop() throws Exception {
+        this.backups = 2;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        IgniteCache<Object, Object> qryClnCache = qryClient.cache(null);
+
+        Affinity<Object> aff = qryClient.affinity(null);
+
+        final CacheEventListener2 lsnr = new CacheEventListener2();
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        qry.setRemoteFilter(new CacheEventFilter());
+
+        QueryCursor<?> cur = qryClnCache.query(qry);
+
+        for (int i = 0; i < 10; i++) {
+            final int idx = i % (SRV_NODES - 1);
+
+            log.info("Stop node: " + idx);
+
+            stopGrid(idx);
+
+            awaitPartitionMapExchange();
+
+            List<T3<Object, Object, Object>> afterRestEvents = new ArrayList<>();
+
+            for (int j = 0; j < aff.partitions(); j++) {
+                Integer oldVal = (Integer)qryClnCache.get(j);
+
+                qryClnCache.put(j, i);
+
+                afterRestEvents.add(new T3<>((Object)j, (Object)i, (Object)oldVal));
+            }
+
+            checkEvents(new ArrayList<>(afterRestEvents), lsnr, false);
+
+            log.info("Start node: " + idx);
+
+            startGrid(idx);
+        }
+
+        cur.close();
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void failoverStartStopFilter(int backups) throws Exception {
+        this.backups = backups;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        Ignite qryClient = startGrid(SRV_NODES);
+
+        client = false;
+
+        IgniteCache<Object, Object> qryClnCache = qryClient.cache(null);
+
+        final CacheEventListener2 lsnr = new CacheEventListener2();
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        qry.setRemoteFilter(new CacheEventFilter());
+
+        QueryCursor<?> cur = qryClnCache.query(qry);
+
+        CacheEventListener2 dinLsnr = null;
+
+        QueryCursor<?> dinQry = null;
+
+        final AtomicBoolean stop = new AtomicBoolean();
+
+        final AtomicReference<CountDownLatch> checkLatch = new AtomicReference<>();
+
+        IgniteInternalFuture<?> restartFut = GridTestUtils.runAsync(new Callable<Void>() {
+            @Override public Void call() throws Exception {
+                while (!stop.get() && !err) {
+                    final int idx = ThreadLocalRandom.current().nextInt(SRV_NODES - 1);
+
+                    log.info("Stop node: " + idx);
+
+                    awaitPartitionMapExchange();
+
+                    Thread.sleep(400);
+
+                    stopGrid(idx);
+
+                    awaitPartitionMapExchange();
+
+                    Thread.sleep(400);
+
+                    log.info("Start node: " + idx);
+
+                    startGrid(idx);
+
+                    Thread.sleep(200);
+
+                    CountDownLatch latch = new CountDownLatch(1);
+
+                    assertTrue(checkLatch.compareAndSet(null, latch));
+
+                    if (!stop.get()) {
+                        log.info("Wait for event check.");
+
+                        assertTrue(latch.await(1, MINUTES));
+                    }
+                }
+
+                return null;
+            }
+        });
+
+        final Map<Integer, Integer> vals = new HashMap<>();
+
+        final Map<Integer, List<T2<Integer, Integer>>> expEvts = new HashMap<>();
+
+        final List<T3<Object, Object, Object>> expEvtsNewLsnr = new ArrayList<>();
+
+        final List<T3<Object, Object, Object>> expEvtsLsnr = new ArrayList<>();
+
+        try {
+            long stopTime = System.currentTimeMillis() + 60_000;
+
+            // Start new filter each 5 sec.
+            long startFilterTime = System.currentTimeMillis() + 5_000;
+
+            final int PARTS = qryClient.affinity(null).partitions();
+
+            ThreadLocalRandom rnd = ThreadLocalRandom.current();
+
+            boolean filtered = false;
+
+            boolean processorPut = false;
+
+            while (System.currentTimeMillis() < stopTime) {
+                Integer key = rnd.nextInt(PARTS);
+
+                Integer prevVal = vals.get(key);
+                Integer val = vals.get(key);
+
+                if (System.currentTimeMillis() > startFilterTime) {
+                    // Stop filter and check events.
+                    if (dinQry != null) {
+                        dinQry.close();
+
+                        log.info("Continuous query listener closed. Await events: " + expEvtsNewLsnr.size());
+
+                        checkEvents(expEvtsNewLsnr, dinLsnr, backups == 0);
+                    }
+
+                    dinLsnr = new CacheEventListener2();
+
+                    ContinuousQuery<Object, Object> newQry = new ContinuousQuery<>();
+
+                    newQry.setLocalListener(dinLsnr);
+
+                    newQry.setRemoteFilter(new CacheEventFilter());
+
+                    dinQry = qryClnCache.query(newQry);
+
+                    log.info("Continuous query listener started.");
+
+                    startFilterTime = System.currentTimeMillis() + 5_000;
+                }
+
+                if (val == null)
+                    val = 0;
+                else
+                    val = Math.abs(val) + 1;
+
+                if (filtered)
+                    val = -val;
+
+                if (processorPut && prevVal != null) {
+                    qryClnCache.invoke(key, new CacheEntryProcessor<Object, Object, Void>() {
+                        @Override public Void process(MutableEntry<Object, Object> entry,
+                            Object... arguments) throws EntryProcessorException {
+                            entry.setValue(arguments[0]);
+
+                            return null;
+                        }
+                    }, val);
+                }
+                else
+                    qryClnCache.put(key, val);
+
+                processorPut = !processorPut;
+
+                vals.put(key, val);
+
+                if (val >= 0) {
+                    List<T2<Integer, Integer>> keyEvts = expEvts.get(key);
+
+                    if (keyEvts == null) {
+                        keyEvts = new ArrayList<>();
+
+                        expEvts.put(key, keyEvts);
+                    }
+
+                    keyEvts.add(new T2<>(val, prevVal));
+
+                    T3<Object, Object, Object> tupVal = new T3<>((Object)key, (Object)val, (Object)prevVal);
+
+                    expEvtsLsnr.add(tupVal);
+
+                    if (dinQry != null)
+                        expEvtsNewLsnr.add(tupVal);
+                }
+
+                filtered = !filtered;
+
+                CountDownLatch latch = checkLatch.get();
+
+                if (latch != null) {
+                    log.info("Check events.");
+
+                    checkLatch.set(null);
+
+                    boolean success = false;
+
+                    try {
+                        if (err)
+                            break;
+
+                        checkEvents(expEvtsLsnr, lsnr, backups == 0);
+
+                        success = true;
+
+                        log.info("Events checked.");
+                    }
+                    finally {
+                        if (!success)
+                            err = true;
+
+                        latch.countDown();
+                    }
+                }
+            }
+        }
+        finally {
+            stop.set(true);
+        }
+
+        CountDownLatch latch = checkLatch.get();
+
+        if (latch != null)
+            latch.countDown();
+
+        restartFut.get();
+
+        checkEvents(expEvtsLsnr, lsnr, backups == 0);
+
+        lsnr.evts.clear();
+        lsnr.vals.clear();
+
+        if (dinQry != null) {
+            checkEvents(expEvtsNewLsnr, dinLsnr, backups == 0);
+
+            dinLsnr.evts.clear();
+            dinLsnr.vals.clear();
+        }
+
+        List<T3<Object, Object, Object>> afterRestEvents = new ArrayList<>();
+
+        for (int i = 0; i < qryClient.affinity(null).partitions(); i++) {
+            Integer oldVal = (Integer)qryClnCache.get(i);
+
+            qryClnCache.put(i, i);
+
+            afterRestEvents.add(new T3<>((Object)i, (Object)i, (Object)oldVal));
+        }
+
+        checkEvents(new ArrayList<>(afterRestEvents), lsnr, false);
+
+        cur.close();
+
+        if (dinQry != null) {
+            checkEvents(new ArrayList<>(afterRestEvents), dinLsnr, false);
+
+            dinQry.close();
+        }
+
+        assertFalse("Unexpected error during test, see log for details.", err);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testMultiThreadedFailover() throws Exception {
+        this.backups = 2;
+
+        final int SRV_NODES = 4;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        final Ignite qryCln = startGrid(SRV_NODES);
+
+        client = false;
+
+        final IgniteCache<Object, Object> qryClnCache = qryCln.cache(null);
+
+        final CacheEventListener2 lsnr = new CacheEventListener2();
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        QueryCursor<?> cur = qryClnCache.query(qry);
+
+        final AtomicBoolean stop = new AtomicBoolean();
+
+        final int THREAD = 4;
+
+        final int PARTS = THREAD;
+
+        final List<List<T3<Object, Object, Object>>> expEvts = new ArrayList<>(THREAD + 5);
+
+        for (int i = 0; i < THREAD; i++)
+            expEvts.add(i, new ArrayList<T3<Object, Object, Object>>());
+
+        final AtomicReference<CyclicBarrier> checkBarrier = new AtomicReference<>();
+
+        final ThreadLocalRandom rnd = ThreadLocalRandom.current();
+
+        IgniteInternalFuture<?> restartFut = GridTestUtils.runAsync(new Callable<Void>() {
+            @Override public Void call() throws Exception {
+                while (!stop.get() && !err) {
+                    final int idx = rnd.nextInt(SRV_NODES);
+
+                    log.info("Stop node: " + idx);
+
+                    stopGrid(idx);
+
+                    Thread.sleep(300);
+
+                    GridTestUtils.waitForCondition(new PA() {
+                        @Override public boolean apply() {
+                            return qryCln.cluster().nodes().size() == SRV_NODES;
+                        }
+                    }, 5000L);
+
+                    try {
+                        log.info("Start node: " + idx);
+
+                        startGrid(idx);
+
+                        Thread.sleep(300);
+
+                        GridTestUtils.waitForCondition(new PA() {
+                            @Override public boolean apply() {
+                                return qryCln.cluster().nodes().size() == SRV_NODES + 1;
+                            }
+                        }, 5000L);
+                    }
+                    catch (Exception e) {
+                        log.warning("Failed to stop nodes.", e);
+                    }
+
+                    CyclicBarrier bar = new CyclicBarrier(THREAD + 1 /* plus start/stop thread */, new Runnable() {
+                        @Override public void run() {
+                            try {
+                                int size0 = 0;
+
+                                for (List<T3<Object, Object, Object>> evt : expEvts)
+                                    size0 += evt.size();
+
+                                final int size = size0;
+
+                                GridTestUtils.waitForCondition(new PA() {
+                                    @Override public boolean apply() {
+                                        return lsnr.size() <= size;
+                                    }
+                                }, 2000L);
+
+                                List<T3<Object, Object, Object>> expEvts0 = new ArrayList<>();
+
+                                for (List<T3<Object, Object, Object>> evt : expEvts)
+                                    expEvts0.addAll(evt);
+
+                                checkEvents(expEvts0, lsnr, false, false);
+
+                                for (List<T3<Object, Object, Object>> evt : expEvts)
+                                    evt.clear();
+                            }
+                            catch (Exception e) {
+                                log.error("Failed.", e);
+
+                                err = true;
+
+                                stop.set(true);
+                            }
+                            finally {
+                                checkBarrier.set(null);
+                            }
+                        }
+                    });
+
+                    assertTrue(checkBarrier.compareAndSet(null, bar));
+
+                    if (!stop.get() && !err)
+                        bar.await(1, MINUTES);
+                }
+
+                return null;
+            }
+        });
+
+        final long stopTime = System.currentTimeMillis() + 60_000;
+
+        final AtomicInteger valCntr = new AtomicInteger(0);
+
+        final AtomicInteger threadSeq = new AtomicInteger(0);
+
+        GridTestUtils.runMultiThreaded(new Runnable() {
+            @Override public void run() {
+                try {
+                    final ThreadLocalRandom rnd = ThreadLocalRandom.current();
+
+                    final int threadId = threadSeq.getAndIncrement();
+
+                    log.error("Thread id: " + threadId);
+
+                    while (System.currentTimeMillis() < stopTime && !stop.get() && !err) {
+                        Integer key = rnd.nextInt(PARTS);
+
+                        Integer val = valCntr.incrementAndGet();
+
+                        Integer prevVal = (Integer)qryClnCache.getAndPut(key, val);
+
+                        expEvts.get(threadId).add(new T3<>((Object)key, (Object)val, (Object)prevVal));
+
+                        CyclicBarrier bar = checkBarrier.get();
+
+                        if (bar != null)
+                            bar.await();
+                    }
+                }
+                catch (Exception e){
+                    log.error("Failed.", e);
+
+                    err = true;
+
+                    stop.set(true);
+                }
+                finally {
+                    stop.set(true);
+                }
+            }
+        }, THREAD, "update-thread");
+
+        restartFut.get();
+
+        List<T3<Object, Object, Object>> expEvts0 = new ArrayList<>();
+
+        for (List<T3<Object, Object, Object>> evt : expEvts) {
+            expEvts0.addAll(evt);
+
+            evt.clear();
+        }
+
+        if (!expEvts0.isEmpty())
+            checkEvents(expEvts0, lsnr, true);
+
+        cur.close();
+
+        assertFalse("Unexpected error during test, see log for details.", err);
+    }
+
+    /**
+     * @throws Exception If failed.
+     */
+    public void testMultiThreaded() throws Exception {
+        this.backups = 2;
+
+        final int SRV_NODES = 3;
+
+        startGridsMultiThreaded(SRV_NODES);
+
+        client = true;
+
+        Ignite qryClient = startGrid(SRV_NODES);
+
+        final IgniteCache<Object, Object> cache = qryClient.cache(null);
+
+        CacheEventListener1 lsnr = new CacheEventListener1(true);
+
+        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
+
+        qry.setLocalListener(lsnr);
+
+        QueryCursor<?> cur = cache.query(qry);
+
+        client = false;
+
+        final int SRV_IDX = SRV_NODES - 1;
+
+        List<Integer> keys = primaryKeys(ignite(SRV_IDX).cache(null), 10);
+
+        final int THREADS = 10;
+
+        for (int i = 0; i < keys.size(); i++) {
+            log.info("Iteration: " + i);
+
+            Ignite srv = ignite(SRV_IDX);
+
+            TestCommunicationSpi spi = (TestCommunicationSpi)srv.configuration().getCommunicationSpi();
+
+            spi.sndFirstOnly = new AtomicBoolean(false);
+
+            final Integer key = keys.get(i);
+
+            final AtomicInteger val = new AtomicInteger();
+
+            CountDownLatch latch = new CountDownLatch(THREADS);
+
+            lsnr.latch = latch;
+
+            IgniteInternalFuture<?> fut = GridTestUtils.runMultiThreadedAsync(new Callable<Object>() {
+                @Override public Object call() throws Exception {
+                    Integer val0 = val.getAndIncrement();
+
+                    cache.put(key, val0);
+
+                    return null;
+                }
+            }, THREADS, "update-thread");
+
+            fut.get();
+
+            stopGrid(SRV_IDX);
+
+            if (!latch.await(5, SECONDS))
+                fail("Failed to wait for notifications [exp=" + THREADS + ", left=" + lsnr.latch.getCount() + ']');
+
+            assertEquals(THREADS, lsnr.allEvts.size());
+
+            Set<Integer> vals = new HashSet<>();
+
+            boolean err = false;
+
+            for (CacheEntryEvent<?, ?> evt : lsnr.allEvts) {
+                assertEquals(key, evt.getKey());
+                assertNotNull(evt.getValue());
+
+                if (!vals.add((Integer)evt.getValue())) {
+                    err = true;
+
+                    log.info("Extra event: " + evt);
+                }
+            }
+
+            for (int v = 0; v < THREADS; v++) {
+                if (!vals.contains(v)) {
+                    err = true;
+
+                    log.info("Event for value not received: " + v);
+                }
+            }
+
+            assertFalse("Invalid events, see log for details.", err);
+
+            lsnr.allEvts.clear();
+
+            startGrid(SRV_IDX);
+        }
+
+        cur.close();
+    }
+
+    /**
+     * @param logAll If {@code true} logs all unexpected values.
+     * @param expEvts Expected values.
+     * @param lsnr Listener.
+     * @return Check status.
+     */
+    @SuppressWarnings("SynchronizationOnLocalVariableOrMethodParameter")
+    private boolean checkEvents(boolean logAll,
+        Map<Integer, List<T2<Integer, Integer>>> expEvts,
+        CacheEventListener2 lsnr) {
+        assertTrue(!expEvts.isEmpty());
+
+        boolean pass = true;
+
+        for (Map.Entry<Integer, List<T2<Integer, Integer>>> e : expEvts.entrySet()) {
+            Integer key = e.getKey();
+            List<T2<Integer, Integer>> exp = e.getValue();
+
+            List<CacheEntryEvent<?, ?>> rcvdEvts = lsnr.evts.get(key);
+
+            if (rcvdEvts == null) {
+                pass = false;
+
+                log.info("No events for key [key=" + key + ", exp=" + e.getValue() + ']');
+
+                if (!logAll)
+                    return false;
+            }
+            else {
+                synchronized (rcvdEvts) {
+                    if (rcvdEvts.size() != exp.size()) {
+                        pass = false;
+
+                        log.info("Missed or extra events for key [key=" + key +
+                            ", exp=" + e.getValue() +
+                            ", rcvd=" + rcvdEvts + ']');
+
+                        if (!logAll)
+                            return false;
+                    }
+
+                    int cnt = Math.min(rcvdEvts.size(), exp.size());
+
+                    for (int i = 0; i < cnt; i++) {
+                        T2<Integer, Integer> expEvt = exp.get(i);
+                        CacheEntryEvent<?, ?> rcvdEvt = rcvdEvts.get(i);
+
+                        if (pass) {
+                            assertEquals(key, rcvdEvt.getKey());
+                            assertEquals(expEvt.get1(), rcvdEvt.getValue());
+                        }
+                        else {
+                            if (!key.equals(rcvdEvt.getKey()) || !expEvt.get1().equals(rcvdEvt.getValue()))
+                                log.warning("Missed events. [key=" + key + ", actKey=" + rcvdEvt.getKey()
+                                    + ", expVal=" + expEvt.get1() + ", actVal=" + rcvdEvt.getValue() + "]");
+                        }
+                    }
+
+                    if (!pass) {
+                        for (int i = cnt; i < exp.size(); i++) {
+                            T2<Integer, Integer> val = exp.get(i);
+
+                            log.warning("Missed events. [key=" + key + ", expVal=" + val.get1()
+                                + ", prevVal=" + val.get2() + "]");
+                        }
+                    }
+                }
+            }
+        }
+
+        if (pass) {
+            expEvts.clear();
+            lsnr.evts.clear();
+        }
+
+        return pass;
+    }
+
+    /**
+     *
+     */
+    private static class CacheEventListener1 implements CacheEntryUpdatedListener<Object, Object> {
+        /** */
+        private volatile CountDownLatch latch;
+
+        /** */
+        private GridConcurrentHashSet<Integer> keys = new GridConcurrentHashSet<>();
+
+        /** */
+        private ConcurrentHashMap<Object, CacheEntryEvent<?, ?>> evts = new ConcurrentHashMap<>();
+
+        /** */
+        private List<CacheEntryEvent<?, ?>> allEvts;
+
+        /** */
+        @LoggerResource
+        private IgniteLogger log;
+
+        /**
+         * @param saveAll Save all events flag.
+         */
+        CacheEventListener1(boolean saveAll) {
+            if (saveAll)
+                allEvts = new ArrayList<>();
+        }
+
+        /** {@inheritDoc} */
+        @Override public void onUpdated(Iterable<CacheEntryEvent<?, ?>> evts) {
+            try {
+                for (CacheEntryEvent<?, ?> evt : evts) {
+                    CountDownLatch latch = this.latch;
+
+                    log.info("Received cache event [evt=" + evt +
+                        ", left=" + (latch != null ? latch.getCount() : null) + ']');
+
+                    this.evts.put(evt.getKey(), evt);
+
+                    keys.add((Integer)evt.getKey());
+
+                    if (allEvts != null)
+                        allEvts.add(evt);
+
+                    assertTrue(latch != null);
+                    assertTrue(latch.getCount() > 0);
+
+                    latch.countDown();
+
+                    if (latch.getCount() == 0) {
+                        this.latch = null;
+
+                        keys.clear();
+                    }
+                }
+            }
+            catch (Throwable e) {
+                err = true;
+
+                log.error("Unexpected error", e);
+            }
+        }
+    }
+
+    /**
+     *
+     */
+    private static class CacheEventListener2 implements CacheEntryUpdatedListener<Object, Object> {
+        /** */
+        @LoggerResource
+        private IgniteLogger log;
+
+        /** */
+        private final ConcurrentHashMap<Integer, Integer> vals = new ConcurrentHashMap<>();
+
+        /** */
+        private final ConcurrentHashMap<Integer, List<CacheEntryEvent<?, ?>>> evts = new ConcurrentHashMap<>();
+
+        /**
+         * @return Count events.
+         */
+        public int size() {
+            int size = 0;
+
+            for (List<CacheEntryEvent<?, ?>> e : evts.values())
+                size += e.size();
+
+            return size;
+        }
+
+        /** {@inheritDoc} */
+        @Override public synchronized void onUpdated(Iterable<CacheEntryEvent<?, ?>> evts)
+            throws CacheEntryListenerException  {
+            try {
+                for (CacheEntryEvent<?, ?> evt : evts) {
+                    Integer key = (Integer)evt.getKey();
+                    Integer val = (Integer)evt.getValue();
+
+                    assertNotNull(key);
+                    assertNotNull(val);
+
+                    Integer prevVal = vals.get(key);
+
+                    boolean dup = false;
+
+                    if (prevVal != null && prevVal.equals(val))
+                        dup = true;
+
+                    if (!dup) {
+                        vals.put(key, val);
+
+                        List<CacheEntryEvent<?, ?>> keyEvts = this.evts.get(key);
+
+                        if (keyEvts == null) {
+                            keyEvts = Collections.synchronizedList(new ArrayList<CacheEntryEvent<?, ?>>());
+
+                            this.evts.put(key, keyEvts);
+                        }
+
+                        keyEvts.add(evt);
+                    }
+                }
+            }
+            catch (Throwable e) {
+                err = true;
+
+                log.error("Unexpected error", e);
+            }
+        }
+    }
+
+    /**
+     *
+     */
+    public static class CacheEventListener3 implements CacheEntryUpdatedListener<Object, Object>,
+        CacheEntryEventSerializableFilter<Object, Object> {
+        /** Keys. */
+        GridConcurrentHashSet<Integer> keys = new GridConcurrentHashSet<>();
+
+        /** Events. */
+        private final ConcurrentHashMap<Object, CacheEntryEvent<?, ?>> evts = new ConcurrentHashMap<>();
+
+        /** {@inheritDoc} */
+        @Override public void onUpdated(Iterable<CacheEntryEvent<?, ?>> events) throws CacheEntryListenerException {
+            for (CacheEntryEvent<?, ?> e : events) {
+                Integer key = (Integer)e.getKey();
+
+                keys.add(key);
+
+                assert evts.put(key, e) == null;
+            }
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean evaluate(CacheEntryEvent<?, ?> e) throws CacheEntryListenerException {
+            return (Integer)e.getValue() % 2 == 0;
+        }
+    }
+
+    /**
+     *
+     */
+    public static class CacheEventFilter implements CacheEntryEventSerializableFilter<Object, Object> {
+        /** {@inheritDoc} */
+        @Override public boolean evaluate(CacheEntryEvent<?, ?> event) throws CacheEntryListenerException {
+            return ((Integer)event.getValue()) >= 0;
+        }
+    }
+
+    /**
+     *
+     */
+    private static class TestCommunicationSpi extends TcpCommunicationSpi {
+        /** */
+        @LoggerResource
+        private IgniteLogger log;
+
+        /** */
+        private volatile boolean skipMsg;
+
+        /** */
+        private volatile boolean skipAllMsg;
+
+        /** */
+        private volatile AtomicBoolean sndFirstOnly;
+
+        /** {@inheritDoc} */
+        @Override public void sendMessage(ClusterNode node, Message msg, IgniteInClosure<IgniteException> ackC)
+            throws IgniteSpiException {
+            Object msg0 = ((GridIoMessage)msg).message();
+
+            if (skipAllMsg)
+                return;
+
+            if (msg0 instanceof GridContinuousMessage) {
+                if (skipMsg) {
+                    if (log.isDebugEnabled())
+                        log.debug("Skip continuous message: " + msg0);
+
+                    return;
+                }
+                else {
+                    AtomicBoolean sndFirstOnly = this.sndFirstOnly;
+
+                    if (sndFirstOnly != null && !sndFirstOnly.compareAndSet(false, true)) {
+                        if (log.isDebugEnabled())
+                            log.debug("Skip continuous message: " + msg0);
+
+                        return;
+                    }
+                }
+            }
+
+            super.sendMessage(node, msg, ackC);
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ce636372/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicNearEnabledSelfSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicNearEnabledSelfSelfTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicNearEnabledSelfSelfTest.java
new file mode 100644
index 0000000..b3c18a9
--- /dev/null
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicNearEnabledSelfSelfTest.java
@@ -0,0 +1,46 @@
+/*
+ * 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.query.continuous;
+
+import org.apache.ignite.cache.CacheAtomicWriteOrderMode;
+import org.apache.ignite.cache.CacheMode;
+import org.apache.ignite.configuration.NearCacheConfiguration;
+
+import static org.apache.ignite.cache.CacheAtomicWriteOrderMode.PRIMARY;
+import static org.apache.ignite.cache.CacheMode.PARTITIONED;
+
+/**
+ *
+ */
+public class CacheContinuousQueryFailoverAtomicNearEnabledSelfSelfTest
+    extends CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest {
+    /** {@inheritDoc} */
+    @Override protected CacheMode cacheMode() {
+        return PARTITIONED;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected CacheAtomicWriteOrderMode writeOrderMode() {
+        return PRIMARY;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected NearCacheConfiguration nearCacheConfiguration() {
+        return super.nearCacheConfiguration();
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ce636372/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest.java
new file mode 100644
index 0000000..e33db45
--- /dev/null
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest.java
@@ -0,0 +1,44 @@
+/*
+ * 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.query.continuous;
+
+import org.apache.ignite.cache.CacheAtomicWriteOrderMode;
+import org.apache.ignite.cache.CacheAtomicityMode;
+import org.apache.ignite.cache.CacheMode;
+
+import static org.apache.ignite.cache.CacheAtomicWriteOrderMode.PRIMARY;
+
+/**
+ *
+ */
+public class CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest extends CacheContinuousQueryFailoverAbstractSelfTest {
+    /** {@inheritDoc} */
+    @Override protected CacheAtomicWriteOrderMode writeOrderMode() {
+        return PRIMARY;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected CacheMode cacheMode() {
+        return CacheMode.PARTITIONED;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected CacheAtomicityMode atomicityMode() {
+        return CacheAtomicityMode.ATOMIC;
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ce636372/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicReplicatedSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicReplicatedSelfTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicReplicatedSelfTest.java
new file mode 100644
index 0000000..84c9131
--- /dev/null
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverAtomicReplicatedSelfTest.java
@@ -0,0 +1,40 @@
+/*
+ * 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.query.continuous;
+
+import org.apache.ignite.cache.CacheAtomicWriteOrderMode;
+import org.apache.ignite.cache.CacheMode;
+
+import static org.apache.ignite.cache.CacheAtomicWriteOrderMode.PRIMARY;
+import static org.apache.ignite.cache.CacheMode.REPLICATED;
+
+/**
+ *
+ */
+public class CacheContinuousQueryFailoverAtomicReplicatedSelfTest
+    extends CacheContinuousQueryFailoverAtomicPrimaryWriteOrderSelfTest {
+    /** {@inheritDoc} */
+    @Override protected CacheMode cacheMode() {
+        return REPLICATED;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected CacheAtomicWriteOrderMode writeOrderMode() {
+        return PRIMARY;
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ce636372/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxReplicatedSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxReplicatedSelfTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxReplicatedSelfTest.java
new file mode 100644
index 0000000..7c4f180
--- /dev/null
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxReplicatedSelfTest.java
@@ -0,0 +1,32 @@
+/*
+ * 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.query.continuous;
+
+import org.apache.ignite.cache.CacheMode;
+
+import static org.apache.ignite.cache.CacheMode.REPLICATED;
+
+/**
+ *
+ */
+public class CacheContinuousQueryFailoverTxReplicatedSelfTest extends CacheContinuousQueryFailoverTxSelfTest {
+    /** {@inheritDoc} */
+    @Override protected CacheMode cacheMode() {
+        return REPLICATED;
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ce636372/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxSelfTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxSelfTest.java
new file mode 100644
index 0000000..789a105
--- /dev/null
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFailoverTxSelfTest.java
@@ -0,0 +1,39 @@
+/*
+ * 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.query.continuous;
+
+import org.apache.ignite.cache.CacheAtomicityMode;
+import org.apache.ignite.cache.CacheMode;
+
+import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL;
+import static org.apache.ignite.cache.CacheMode.PARTITIONED;
+
+/**
+ *
+ */
+public class CacheContinuousQueryFailoverTxSelfTest extends CacheContinuousQueryFailoverAbstractSelfTest {
+    /** {@inheritDoc} */
+    @Override protected CacheMode cacheMode() {
+        return PARTITIONED;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected CacheAtomicityMode atomicityMode() {
+        return TRANSACTIONAL;
+    }
+}