Examples with SOCountDownLatch io.questdb.mp.SOCountDownLatch used on opensource projects

Example 1 with SOCountDownLatch

use of io.questdb.mp.SOCountDownLatch in project questdb by bluestreak01.

the class ColumnIndexerJob method doRun.

protected boolean doRun(int workerId, long cursor) {
    final ColumnIndexerTask queueItem = queue.get(cursor);
    // copy values and release queue item
    final ColumnIndexer indexer = queueItem.indexer;
    final long lo = queueItem.lo;
    final long hi = queueItem.hi;
    final long indexSequence = queueItem.sequence;
    final SOCountDownLatch latch = queueItem.countDownLatch;
    subSeq.done(cursor);
    // Using CAS allows main thread to steal only parts of its own job.
    if (indexer.tryLock(indexSequence)) {
        TableWriter.indexAndCountDown(indexer, lo, hi, latch);
        return true;
    }
    // work from under nose of this worker.
    return false;
}

Example 2 with SOCountDownLatch

use of io.questdb.mp.SOCountDownLatch in project questdb by bluestreak01.

the class CairoEngineTest method testNextTableId.

@Test
public void testNextTableId() {
    try (CairoEngine engine = new CairoEngine(configuration);
        CairoEngine engineB = new CairoEngine(configuration)) {
        final LongList listA = new LongList();
        final LongList listB = new LongList();
        final CyclicBarrier startBarrier = new CyclicBarrier(2);
        final SOCountDownLatch haltLatch = new SOCountDownLatch();
        haltLatch.setCount(1);
        final AtomicInteger errors = new AtomicInteger();
        new Thread(() -> {
            try {
                startBarrier.await();
                for (int i = 0; i < 100; i++) {
                    listA.add(engine.getNextTableId());
                }
                haltLatch.countDown();
            } catch (InterruptedException | BrokenBarrierException e) {
                e.printStackTrace();
                errors.incrementAndGet();
            }
        }).start();
        try {
            startBarrier.await();
            for (int i = 0; i < 100; i++) {
                listB.add(engineB.getNextTableId());
            }
        } catch (InterruptedException | BrokenBarrierException e) {
            e.printStackTrace();
            errors.incrementAndGet();
        }
        haltLatch.await();
        try (LongTreeSet set = new LongTreeSet(4 * 2048, Integer.MAX_VALUE)) {
            // add both arrays to the set and asset that there are no duplicates
            for (int i = 0, n = listA.size(); i < n; i++) {
                Assert.assertTrue(set.put(listA.getQuick(i)));
            }
            for (int i = 0, n = listB.size(); i < n; i++) {
                Assert.assertTrue(set.put(listB.getQuick(i)));
            }
        }
    }
}

Example 3 with SOCountDownLatch

use of io.questdb.mp.SOCountDownLatch in project questdb by bluestreak01.

the class O3FailureTest method testOutOfFileHandles0.

private static void testOutOfFileHandles0(CairoEngine engine, SqlCompiler compiler, SqlExecutionContext executionContext) throws SqlException {
    compiler.compile("create table x as (" + "select" + " rnd_str(5,16,2) i," + " rnd_str(5,16,2) sym," + " rnd_str(5,16,2) amt," + " rnd_str(5,16,2) timestamp," + " rnd_str(5,16,2) b," + " rnd_str('ABC', 'CDE', null, 'XYZ') c," + " rnd_str(5,16,2) d," + " rnd_str(5,16,2) e," + " rnd_str(5,16,2) f," + " rnd_str(5,16,2) g," + " rnd_str(5,16,2) ik," + " rnd_str(5,16,2) j," + " timestamp_sequence(500000000000L,100000000L) ts," + " rnd_str(5,16,2) l," + " rnd_str(5,16,2) m," + " rnd_str(5,16,2) n," + " rnd_str(5,16,2) t," + " rnd_str(5,16,2) l256" + " from long_sequence(10000)" + ") timestamp (ts) partition by DAY", executionContext);
    compiler.compile("create table x1 as (x) timestamp(ts) partition by DAY", executionContext);
    compiler.compile("create table y as (" + "select" + " rnd_str(5,16,2) i," + " rnd_str(5,16,2) sym," + " rnd_str(5,16,2) amt," + " rnd_str(5,16,2) timestamp," + " rnd_str(5,16,2) b," + " rnd_str('ABC', 'CDE', null, 'XYZ') c," + " rnd_str(5,16,2) d," + " rnd_str(5,16,2) e," + " rnd_str(5,16,2) f," + " rnd_str(5,16,2) g," + " rnd_str(5,16,2) ik," + " rnd_str(5,16,2) j," + " timestamp_sequence(500000080000L,79999631L) ts," + " rnd_str(5,16,2) l," + " rnd_str(5,16,2) m," + " rnd_str(5,16,2) n," + " rnd_str(5,16,2) t," + " rnd_str(5,16,2) l256" + " from long_sequence(10000)" + ") timestamp (ts) partition by DAY", executionContext);
    compiler.compile("create table y1 as (y)", executionContext);
    // create expected result sets
    compiler.compile("create table z as (x union all y)", executionContext);
    // create another compiler to be used by second pool
    try (SqlCompiler compiler2 = new SqlCompiler(engine)) {
        final CyclicBarrier barrier = new CyclicBarrier(2);
        final SOCountDownLatch haltLatch = new SOCountDownLatch(2);
        final AtomicInteger errorCount = new AtomicInteger();
        // we have two pairs of tables (x,y) and (x1,y1)
        WorkerPool pool1 = new WorkerPool(new WorkerPoolAwareConfiguration() {

            @Override
            public int[] getWorkerAffinity() {
                return new int[] { -1 };
            }

            @Override
            public int getWorkerCount() {
                return 1;
            }

            @Override
            public boolean haltOnError() {
                return false;
            }

            @Override
            public boolean isEnabled() {
                return true;
            }
        });
        pool1.assign(new Job() {

            private boolean toRun = true;

            @Override
            public boolean run(int workerId) {
                if (toRun) {
                    try {
                        toRun = false;
                        barrier.await();
                        compiler.compile("insert into x select * from y", executionContext);
                    } catch (Throwable e) {
                        e.printStackTrace();
                        errorCount.incrementAndGet();
                    } finally {
                        haltLatch.countDown();
                    }
                }
                return false;
            }
        });
        pool1.assignCleaner(Path.CLEANER);
        final WorkerPool pool2 = new WorkerPool(new WorkerPoolConfiguration() {

            @Override
            public int[] getWorkerAffinity() {
                return new int[] { -1 };
            }

            @Override
            public int getWorkerCount() {
                return 1;
            }

            @Override
            public boolean haltOnError() {
                return false;
            }
        });
        pool2.assign(new Job() {

            private boolean toRun = true;

            @Override
            public boolean run(int workerId) {
                if (toRun) {
                    try {
                        toRun = false;
                        barrier.await();
                        compiler2.compile("insert into x1 select * from y1", executionContext);
                    } catch (Throwable e) {
                        e.printStackTrace();
                        errorCount.incrementAndGet();
                    } finally {
                        haltLatch.countDown();
                    }
                }
                return false;
            }
        });
        pool2.assignCleaner(Path.CLEANER);
        pool1.start(null);
        pool2.start(null);
        haltLatch.await();
        pool1.halt();
        pool2.halt();
        Assert.assertTrue(errorCount.get() > 0);
    }
}

Example 4 with SOCountDownLatch

use of io.questdb.mp.SOCountDownLatch in project questdb by bluestreak01.

the class SqlCodeGeneratorTest method testVectorSumAvgDoubleRndColumnWithNullsParallel.

@Test
public void testVectorSumAvgDoubleRndColumnWithNullsParallel() throws Exception {
    final AtomicBoolean running = new AtomicBoolean(true);
    final SOCountDownLatch haltLatch = new SOCountDownLatch(1);
    final GroupByJob job = new GroupByJob(engine.getMessageBus());
    new Thread(() -> {
        while (running.get()) {
            job.run(0);
        }
        haltLatch.countDown();
    }).start();
    try {
        assertQuery("avg\tsum\n" + "0.50035043\t834470.437288\n", "select round(avg(c), 9) avg, round(sum(c), 6) sum from x", "create table x as (select rnd_int(0,100,2) a, rnd_double(2) b, rnd_double(2) c, rnd_int() d from long_sequence(2000000))", null, false, true, true);
    } finally {
        running.set(false);
        haltLatch.await();
    }
}

Example 5 with SOCountDownLatch

use of io.questdb.mp.SOCountDownLatch in project questdb by bluestreak01.

the class IODispatcherTest method testSendHttpGetAndSimpleResponse.

@Test
public void testSendHttpGetAndSimpleResponse() throws Exception {
    LOG.info().$("started testSendHttpGetAndSimpleResponse").$();
    final String request = "GET /status?x=1&a=%26b&c&d=x HTTP/1.1\r\n" + "Host: localhost:9000\r\n" + "Connection: keep-alive\r\n" + "Cache-Control: max-age=0\r\n" + "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\n" + "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.48 Safari/537.36\r\n" + "Accept-Encoding: gzip,deflate,sdch\r\n" + "Accept-Language: en-US,en;q=0.8\r\n" + "Cookie: textwrapon=false; textautoformat=false; wysiwyg=textarea\r\n" + "\r\n";
    // the difference between request and expected is url encoding (and ':' padding, which can easily be fixed)
    final String expected = "GET /status?x=1&a=&b&c&d=x HTTP/1.1\r\n" + "host:localhost:9000\r\n" + "connection:keep-alive\r\n" + "cache-control:max-age=0\r\n" + "accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\n" + "user-agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.48 Safari/537.36\r\n" + "accept-encoding:gzip,deflate,sdch\r\n" + "accept-language:en-US,en;q=0.8\r\n" + "cookie:textwrapon=false; textautoformat=false; wysiwyg=textarea\r\n" + "\r\n";
    final String expectedResponse = "HTTP/1.1 200 OK\r\n" + "Server: questDB/1.0\r\n" + "Date: Thu, 1 Jan 1970 00:00:00 GMT\r\n" + "Transfer-Encoding: chunked\r\n" + "Content-Type: text/plain; charset=utf-8\r\n" + "\r\n" + "04\r\n" + "OK\r\n" + "\r\n" + "00\r\n" + "\r\n";
    assertMemoryLeak(() -> {
        HttpServerConfiguration httpServerConfiguration = new DefaultHttpServerConfiguration(new DefaultHttpContextConfiguration() {

            @Override
            public MillisecondClock getClock() {
                return () -> 0;
            }
        });
        SOCountDownLatch connectLatch = new SOCountDownLatch(1);
        SOCountDownLatch contextClosedLatch = new SOCountDownLatch(1);
        AtomicInteger closeCount = new AtomicInteger(0);
        try (IODispatcher<HttpConnectionContext> dispatcher = IODispatchers.create(new DefaultIODispatcherConfiguration(), new IOContextFactory<HttpConnectionContext>() {

            @Override
            public HttpConnectionContext newInstance(long fd, IODispatcher<HttpConnectionContext> dispatcher1) {
                connectLatch.countDown();
                return new HttpConnectionContext(httpServerConfiguration.getHttpContextConfiguration()) {

                    @Override
                    public void close() {
                        // context is closed
                        if (closeCount.incrementAndGet() == 1) {
                            super.close();
                            contextClosedLatch.countDown();
                        }
                    }
                }.of(fd, dispatcher1);
            }
        })) {
            StringSink sink = new StringSink();
            final HttpRequestProcessorSelector selector = new HttpRequestProcessorSelector() {

                @Override
                public HttpRequestProcessor select(CharSequence url) {
                    return null;
                }

                @Override
                public HttpRequestProcessor getDefaultProcessor() {
                    return new HttpRequestProcessor() {

                        @Override
                        public void onHeadersReady(HttpConnectionContext context) {
                            HttpRequestHeader headers = context.getRequestHeader();
                            sink.put(headers.getMethodLine());
                            sink.put("\r\n");
                            ObjList<CharSequence> headerNames = headers.getHeaderNames();
                            for (int i = 0, n = headerNames.size(); i < n; i++) {
                                sink.put(headerNames.getQuick(i)).put(':');
                                sink.put(headers.getHeader(headerNames.getQuick(i)));
                                sink.put("\r\n");
                            }
                            sink.put("\r\n");
                        }

                        @Override
                        public void onRequestComplete(HttpConnectionContext context) throws PeerDisconnectedException, PeerIsSlowToReadException {
                            context.simpleResponse().sendStatusWithDefaultMessage(200);
                        }
                    };
                }

                @Override
                public void close() {
                }
            };
            AtomicBoolean serverRunning = new AtomicBoolean(true);
            SOCountDownLatch serverHaltLatch = new SOCountDownLatch(1);
            new Thread(() -> {
                while (serverRunning.get()) {
                    dispatcher.run(0);
                    dispatcher.processIOQueue((operation, context) -> context.handleClientOperation(operation, selector, EmptyRescheduleContext));
                }
                serverHaltLatch.countDown();
            }).start();
            long fd = Net.socketTcp(true);
            try {
                long sockAddr = Net.sockaddr("127.0.0.1", 9001);
                try {
                    TestUtils.assertConnect(fd, sockAddr);
                    connectLatch.await();
                    int len = request.length();
                    long buffer = TestUtils.toMemory(request);
                    try {
                        Assert.assertEquals(len, Net.send(fd, buffer, len));
                        // read response we expect
                        StringSink sink2 = new StringSink();
                        final int expectedLen = expectedResponse.length();
                        int read = 0;
                        while (read < expectedLen) {
                            int n = Net.recv(fd, buffer, len);
                            Assert.assertTrue(n > 0);
                            for (int i = 0; i < n; i++) {
                                sink2.put((char) Unsafe.getUnsafe().getByte(buffer + i));
                            }
                            // copy response bytes to sink
                            read += n;
                        }
                        TestUtils.assertEquals(expectedResponse, sink2);
                    } finally {
                        Unsafe.free(buffer, len, MemoryTag.NATIVE_DEFAULT);
                    }
                    Assert.assertEquals(0, Net.close(fd));
                    LOG.info().$("closed [fd=").$(fd).$(']').$();
                    fd = -1;
                    contextClosedLatch.await();
                    serverRunning.set(false);
                    serverHaltLatch.await();
                    Assert.assertEquals(0, dispatcher.getConnectionCount());
                    TestUtils.assertEquals(expected, sink);
                } finally {
                    Net.freeSockAddr(sockAddr);
                }
            } finally {
                if (fd != -1) {
                    Net.close(fd);
                }
            }
            Assert.assertEquals(1, closeCount.get());
        }
    });
}