Examples with RoundRobinReplicaSelection com.linkedin.pinot.transport.common.RoundRobinReplicaSelection used on opensource projects

Example 1 with RoundRobinReplicaSelection

use of com.linkedin.pinot.transport.common.RoundRobinReplicaSelection in project pinot by linkedin.

the class ScatterGatherTest method testMultipleServerTimeout.

@Test
public void testMultipleServerTimeout() throws Exception {
    MetricsRegistry registry = new MetricsRegistry();
    // Server start
    int serverPort1 = 7081;
    int serverPort2 = 7082;
    int serverPort3 = 7083;
    // Timeout server
    int serverPort4 = 7084;
    NettyTCPServer server1 = new NettyTCPServer(serverPort1, new TestRequestHandlerFactory(0, 1), null);
    NettyTCPServer server2 = new NettyTCPServer(serverPort2, new TestRequestHandlerFactory(1, 1), null);
    NettyTCPServer server3 = new NettyTCPServer(serverPort3, new TestRequestHandlerFactory(2, 1), null);
    NettyTCPServer server4 = new NettyTCPServer(serverPort4, new TestRequestHandlerFactory(3, 1, 7000, false), null);
    Thread t1 = new Thread(server1);
    Thread t2 = new Thread(server2);
    Thread t3 = new Thread(server3);
    Thread t4 = new Thread(server4);
    t1.start();
    t2.start();
    t3.start();
    t4.start();
    //Client setup
    ScheduledExecutorService timedExecutor = new ScheduledThreadPoolExecutor(1);
    ExecutorService service = new ThreadPoolExecutor(5, 5, 5, TimeUnit.DAYS, new LinkedBlockingDeque<Runnable>());
    EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    NettyClientMetrics clientMetrics = new NettyClientMetrics(registry, "client_");
    PooledNettyClientResourceManager rm = new PooledNettyClientResourceManager(eventLoopGroup, new HashedWheelTimer(), clientMetrics);
    KeyedPoolImpl<ServerInstance, NettyClientConnection> pool = new KeyedPoolImpl<ServerInstance, NettyClientConnection>(1, 1, 300000, 1, rm, timedExecutor, service, registry);
    rm.setPool(pool);
    SegmentIdSet pg1 = new SegmentIdSet();
    pg1.addSegment(new SegmentId("0"));
    SegmentIdSet pg2 = new SegmentIdSet();
    pg2.addSegment(new SegmentId("1"));
    SegmentIdSet pg3 = new SegmentIdSet();
    pg3.addSegment(new SegmentId("2"));
    SegmentIdSet pg4 = new SegmentIdSet();
    pg4.addSegment(new SegmentId("3"));
    ServerInstance serverInstance1 = new ServerInstance("localhost", serverPort1);
    ServerInstance serverInstance2 = new ServerInstance("localhost", serverPort2);
    ServerInstance serverInstance3 = new ServerInstance("localhost", serverPort3);
    ServerInstance serverInstance4 = new ServerInstance("localhost", serverPort4);
    Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
    pgMap.put(serverInstance1, pg1);
    pgMap.put(serverInstance2, pg2);
    pgMap.put(serverInstance3, pg3);
    pgMap.put(serverInstance4, pg4);
    String request1 = "request_0";
    String request2 = "request_1";
    String request3 = "request_2";
    String request4 = "request_3";
    Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
    pgMapStr.put(pg1, request1);
    pgMapStr.put(pg2, request2);
    pgMapStr.put(pg3, request3);
    pgMapStr.put(pg4, request4);
    ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr, new RoundRobinReplicaSelection(), ReplicaSelectionGranularity.SEGMENT_ID_SET, 0, 1000);
    ScatterGatherImpl scImpl = new ScatterGatherImpl(pool, service);
    final ScatterGatherStats scatterGatherStats = new ScatterGatherStats();
    BrokerMetrics brokerMetrics = new BrokerMetrics(new MetricsRegistry());
    CompositeFuture<ServerInstance, ByteBuf> fut = scImpl.scatterGather(req, scatterGatherStats, brokerMetrics);
    Map<ServerInstance, ByteBuf> v = fut.get();
    //Only 3 servers return value.
    Assert.assertEquals(v.size(), 3);
    ByteBuf b = v.get(serverInstance1);
    byte[] b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    String response = new String(b2);
    Assert.assertEquals(response, "response_0_0");
    b = v.get(serverInstance2);
    b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    response = new String(b2);
    Assert.assertEquals(response, "response_1_0");
    b = v.get(serverInstance3);
    b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    response = new String(b2);
    Assert.assertEquals(response, "response_2_0");
    //No  response from 4th server
    Assert.assertNull(v.get(serverInstance4), "No response from 4th server");
    Map<ServerInstance, Throwable> errorMap = fut.getError();
    Assert.assertEquals(errorMap.size(), 1, "One error");
    Assert.assertNotNull(errorMap.get(serverInstance4), "Server4 returned timeout");
    Thread.sleep(3000);
    pool.getStats().refresh();
    Assert.assertEquals(pool.getStats().getTotalBadDestroyed(), 1, "Total Bad destroyed");
    pool.shutdown();
    service.shutdown();
    eventLoopGroup.shutdownGracefully();
    server1.shutdownGracefully();
    server2.shutdownGracefully();
    server3.shutdownGracefully();
    server4.shutdownGracefully();
}

Example 2 with RoundRobinReplicaSelection

use of com.linkedin.pinot.transport.common.RoundRobinReplicaSelection in project pinot by linkedin.

the class ScatterGatherTest method testMultipleServerError.

@Test
public void testMultipleServerError() throws Exception {
    MetricsRegistry registry = new MetricsRegistry();
    // Server start
    int serverPort1 = 7091;
    int serverPort2 = 7092;
    int serverPort3 = 7093;
    // error server
    int serverPort4 = 7094;
    NettyTCPServer server1 = new NettyTCPServer(serverPort1, new TestRequestHandlerFactory(0, 1), null);
    NettyTCPServer server2 = new NettyTCPServer(serverPort2, new TestRequestHandlerFactory(1, 1), null);
    NettyTCPServer server3 = new NettyTCPServer(serverPort3, new TestRequestHandlerFactory(2, 1), null);
    NettyTCPServer server4 = new NettyTCPServer(serverPort4, new TestRequestHandlerFactory(3, 1, 1000, true), null);
    Thread t1 = new Thread(server1);
    Thread t2 = new Thread(server2);
    Thread t3 = new Thread(server3);
    Thread t4 = new Thread(server4);
    t1.start();
    t2.start();
    t3.start();
    t4.start();
    //Client setup
    ScheduledExecutorService timedExecutor = new ScheduledThreadPoolExecutor(1);
    ExecutorService poolExecutor = MoreExecutors.sameThreadExecutor();
    ExecutorService service = new ThreadPoolExecutor(1, 1, 1, TimeUnit.DAYS, new LinkedBlockingDeque<Runnable>());
    EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    NettyClientMetrics clientMetrics = new NettyClientMetrics(registry, "client_");
    PooledNettyClientResourceManager rm = new PooledNettyClientResourceManager(eventLoopGroup, new HashedWheelTimer(), clientMetrics);
    KeyedPoolImpl<ServerInstance, NettyClientConnection> pool = new KeyedPoolImpl<ServerInstance, NettyClientConnection>(1, 1, 300000, 1, rm, timedExecutor, poolExecutor, registry);
    rm.setPool(pool);
    SegmentIdSet pg1 = new SegmentIdSet();
    pg1.addSegment(new SegmentId("0"));
    SegmentIdSet pg2 = new SegmentIdSet();
    pg2.addSegment(new SegmentId("1"));
    SegmentIdSet pg3 = new SegmentIdSet();
    pg3.addSegment(new SegmentId("2"));
    SegmentIdSet pg4 = new SegmentIdSet();
    pg4.addSegment(new SegmentId("3"));
    ServerInstance serverInstance1 = new ServerInstance("localhost", serverPort1);
    ServerInstance serverInstance2 = new ServerInstance("localhost", serverPort2);
    ServerInstance serverInstance3 = new ServerInstance("localhost", serverPort3);
    ServerInstance serverInstance4 = new ServerInstance("localhost", serverPort4);
    Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
    pgMap.put(serverInstance1, pg1);
    pgMap.put(serverInstance2, pg2);
    pgMap.put(serverInstance3, pg3);
    pgMap.put(serverInstance4, pg4);
    String request1 = "request_0";
    String request2 = "request_1";
    String request3 = "request_2";
    String request4 = "request_3";
    Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
    pgMapStr.put(pg1, request1);
    pgMapStr.put(pg2, request2);
    pgMapStr.put(pg3, request3);
    pgMapStr.put(pg4, request4);
    ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr, new RoundRobinReplicaSelection(), ReplicaSelectionGranularity.SEGMENT_ID_SET, 0, 1000);
    ScatterGatherImpl scImpl = new ScatterGatherImpl(pool, service);
    final ScatterGatherStats scatterGatherStats = new ScatterGatherStats();
    final BrokerMetrics brokerMetrics = new BrokerMetrics(new MetricsRegistry());
    CompositeFuture<ServerInstance, ByteBuf> fut = scImpl.scatterGather(req, scatterGatherStats, brokerMetrics);
    Map<ServerInstance, ByteBuf> v = fut.get();
    //Only 3 servers return value.
    Assert.assertEquals(v.size(), 3);
    ByteBuf b = v.get(serverInstance1);
    byte[] b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    String response = new String(b2);
    Assert.assertEquals(response, "response_0_0");
    b = v.get(serverInstance2);
    b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    response = new String(b2);
    Assert.assertEquals(response, "response_1_0");
    b = v.get(serverInstance3);
    b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    response = new String(b2);
    Assert.assertEquals(response, "response_2_0");
    //No  response from 4th server
    Assert.assertNull(v.get(serverInstance4), "No response from 4th server");
    Map<ServerInstance, Throwable> errorMap = fut.getError();
    Assert.assertEquals(errorMap.size(), 1, "One error");
    Assert.assertNotNull(errorMap.get(serverInstance4), "Server4 returned timeout");
    //    System.out.println("Error is :" + errorMap.get(serverInstance4));
    Thread.sleep(3000);
    //    System.out.println("Pool Stats :" + pool.getStats());
    pool.getStats().refresh();
    Assert.assertEquals(pool.getStats().getTotalBadDestroyed(), 1, "Total Bad destroyed");
    pool.shutdown();
    service.shutdown();
    eventLoopGroup.shutdownGracefully();
    server1.shutdownGracefully();
    server2.shutdownGracefully();
    server3.shutdownGracefully();
    server4.shutdownGracefully();
}

Example 3 with RoundRobinReplicaSelection

use of com.linkedin.pinot.transport.common.RoundRobinReplicaSelection in project pinot by linkedin.

the class ScatterGatherTest method testSelectServers.

@Test
public void testSelectServers() throws Exception {
    ExecutorService poolExecutor = MoreExecutors.sameThreadExecutor();
    ScatterGatherImpl scImpl = new ScatterGatherImpl(null, poolExecutor);
    {
        // 1 server with 2 partitions
        SegmentIdSet pg = new SegmentIdSet();
        pg.addSegment(new SegmentId("0"));
        pg.addSegment(new SegmentId("1"));
        ServerInstance serverInstance1 = new ServerInstance("localhost", 1011);
        List<ServerInstance> instances = new ArrayList<ServerInstance>();
        instances.add(serverInstance1);
        Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
        Map<List<ServerInstance>, SegmentIdSet> invMap = new HashMap<List<ServerInstance>, SegmentIdSet>();
        pgMap.put(serverInstance1, pg);
        invMap.put(instances, pg);
        String request = "request_0";
        Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
        pgMapStr.put(pg, request);
        ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr);
        ScatterGatherRequestContext ctxt = new ScatterGatherRequestContext(req);
        ctxt.setInvertedMap(invMap);
        scImpl.selectServices(ctxt);
        Map<ServerInstance, SegmentIdSet> resultMap = ctxt.getSelectedServers();
        Assert.assertEquals(resultMap.size(), 1, "Count");
        Assert.assertEquals(resultMap.get(serverInstance1), pg, "Element check");
    //      System.out.println(ctxt);
    }
    {
        // 2 server with 2 partitions each
        SegmentIdSet pg = new SegmentIdSet();
        pg.addSegment(new SegmentId("0"));
        pg.addSegment(new SegmentId("1"));
        SegmentIdSet pg2 = new SegmentIdSet();
        pg2.addSegment(new SegmentId("2"));
        pg2.addSegment(new SegmentId("3"));
        ServerInstance serverInstance1 = new ServerInstance("localhost", 1011);
        ServerInstance serverInstance2 = new ServerInstance("localhost", 1012);
        List<ServerInstance> instances = new ArrayList<ServerInstance>();
        instances.add(serverInstance1);
        List<ServerInstance> instances2 = new ArrayList<ServerInstance>();
        instances2.add(serverInstance2);
        Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
        Map<List<ServerInstance>, SegmentIdSet> invMap = new HashMap<List<ServerInstance>, SegmentIdSet>();
        pgMap.put(serverInstance1, pg);
        pgMap.put(serverInstance2, pg2);
        invMap.put(instances, pg);
        invMap.put(instances2, pg2);
        String request = "request_0";
        Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
        pgMapStr.put(pg, request);
        ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr);
        ScatterGatherRequestContext ctxt = new ScatterGatherRequestContext(req);
        ctxt.setInvertedMap(invMap);
        scImpl.selectServices(ctxt);
        Map<ServerInstance, SegmentIdSet> resultMap = ctxt.getSelectedServers();
        Assert.assertEquals(resultMap.size(), 2, "Count");
        Assert.assertEquals(resultMap.get(serverInstance1), pg, "Element check");
        Assert.assertEquals(resultMap.get(serverInstance2), pg2, "Element check");
    //      System.out.println(ctxt);
    }
    {
        // 2 servers sharing 2 partitions (Round-Robin selection) Partition-Group Granularity
        SegmentIdSet pg = new SegmentIdSet();
        pg.addSegment(new SegmentId("0"));
        pg.addSegment(new SegmentId("1"));
        ServerInstance serverInstance1 = new ServerInstance("localhost", 1011);
        ServerInstance serverInstance2 = new ServerInstance("localhost", 1012);
        List<ServerInstance> instances = new ArrayList<ServerInstance>();
        instances.add(serverInstance1);
        instances.add(serverInstance2);
        Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
        Map<List<ServerInstance>, SegmentIdSet> invMap = new HashMap<List<ServerInstance>, SegmentIdSet>();
        pgMap.put(serverInstance1, pg);
        pgMap.put(serverInstance2, pg);
        invMap.put(instances, pg);
        String request = "request_0";
        Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
        pgMapStr.put(pg, request);
        ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr, new RoundRobinReplicaSelection(), ReplicaSelectionGranularity.SEGMENT_ID_SET, 0, 10000);
        ScatterGatherRequestContext ctxt = new ScatterGatherRequestContext(req);
        ctxt.setInvertedMap(invMap);
        scImpl.selectServices(ctxt);
        Map<ServerInstance, SegmentIdSet> resultMap = ctxt.getSelectedServers();
        Assert.assertEquals(resultMap.size(), 1, "Count");
        // first server is getting selected
        Assert.assertEquals(resultMap.get(serverInstance1), pg, "Element check");
        //      System.out.println(ctxt);
        // Run selection again. Now the second server should be selected
        scImpl.selectServices(ctxt);
        resultMap = ctxt.getSelectedServers();
        Assert.assertEquals(resultMap.size(), 1, "Count");
        // second server is getting selected
        Assert.assertEquals(resultMap.get(serverInstance2), pg, "Element check");
    //      System.out.println(ctxt);
    }
    {
        // 2 servers sharing 2 partitions (Round-Robin selection) Partition Granularity
        SegmentIdSet pg = new SegmentIdSet();
        pg.addSegment(new SegmentId("0"));
        pg.addSegment(new SegmentId("1"));
        ServerInstance serverInstance1 = new ServerInstance("localhost", 1011);
        ServerInstance serverInstance2 = new ServerInstance("localhost", 1012);
        List<ServerInstance> instances = new ArrayList<ServerInstance>();
        instances.add(serverInstance1);
        instances.add(serverInstance2);
        Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
        Map<List<ServerInstance>, SegmentIdSet> invMap = new HashMap<List<ServerInstance>, SegmentIdSet>();
        pgMap.put(serverInstance1, pg);
        pgMap.put(serverInstance1, pg);
        invMap.put(instances, pg);
        String request = "request_0";
        Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
        pgMapStr.put(pg, request);
        ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr, new RoundRobinReplicaSelection(), ReplicaSelectionGranularity.SEGMENT_ID, 0, 10000);
        ScatterGatherRequestContext ctxt = new ScatterGatherRequestContext(req);
        ctxt.setInvertedMap(invMap);
        scImpl.selectServices(ctxt);
        Map<ServerInstance, SegmentIdSet> resultMap = ctxt.getSelectedServers();
        Assert.assertEquals(resultMap.size(), 2, "Count");
        // first server is getting selected
        Assert.assertFalse(resultMap.get(serverInstance1).equals(resultMap.get(serverInstance2)), "Element check");
        //      System.out.println(ctxt);
        // Run selection again. Now the second server should be selected
        scImpl.selectServices(ctxt);
        resultMap = ctxt.getSelectedServers();
        Assert.assertEquals(resultMap.size(), 2, "Count");
        // first server is getting selected
        Assert.assertFalse(resultMap.get(serverInstance1).equals(resultMap.get(serverInstance2)), "Element check");
    //      System.out.println(ctxt);
    }
}