Examples with READ_WRITE_SAFE org.apache.ignite.cache.PartitionLossPolicy.READ_WRITE_SAFE used on opensource projects

Example 1 with READ_WRITE_SAFE

use of org.apache.ignite.cache.PartitionLossPolicy.READ_WRITE_SAFE in project ignite by apache.

the class BinaryMetadataRegistrationInsideEntryProcessorTest method testContinuousQueryAndBinaryObjectBuilder.

/**
 * Continuously execute multiple EntryProcessors with having continuous queries in parallel.
 * This used to lead to several deadlocks.
 *
 * @throws Exception If failed.
 */
@Test
public void testContinuousQueryAndBinaryObjectBuilder() throws Exception {
    startGrids(3).cluster().active(true);
    grid(0).createCache(new CacheConfiguration<>().setName(CACHE_NAME).setAtomicityMode(ATOMIC).setBackups(2).setCacheMode(PARTITIONED).setWriteSynchronizationMode(FULL_SYNC).setPartitionLossPolicy(READ_WRITE_SAFE));
    IgniteEx client1 = startClientGrid(getConfiguration().setIgniteInstanceName("client1"));
    IgniteEx client2 = startClientGrid(getConfiguration().setIgniteInstanceName("client2"));
    AtomicBoolean stop = new AtomicBoolean();
    AtomicInteger keyCntr = new AtomicInteger();
    AtomicInteger binaryTypeCntr = new AtomicInteger();
    /**
     */
    class MyEntryProcessor implements CacheEntryProcessor<Object, Object, Object> {

        /**
         * Cached int value retrieved from {@code binaryTypeCntr} variable.
         */
        private int i;

        /**
         */
        public MyEntryProcessor(int i) {
            this.i = i;
        }

        /**
         */
        @IgniteInstanceResource
        Ignite ignite;

        /**
         * {@inheritDoc}
         */
        @Override
        public Object process(MutableEntry<Object, Object> entry, Object... arguments) throws EntryProcessorException {
            BinaryObjectBuilder builder = ignite.binary().builder("my_type");
            builder.setField("new_field" + i, i);
            entry.setValue(builder.build());
            return null;
        }
    }
    IgniteInternalFuture fut1 = GridTestUtils.runMultiThreadedAsync(() -> {
        IgniteCache<Object, Object> cache = client1.cache(CACHE_NAME).withKeepBinary();
        while (!stop.get()) {
            Integer key = keyCntr.getAndIncrement();
            cache.put(key, key);
            cache.invoke(key, new MyEntryProcessor(binaryTypeCntr.get()));
            binaryTypeCntr.incrementAndGet();
        }
    }, 8, "writer-thread");
    IgniteInternalFuture fut2 = GridTestUtils.runAsync(() -> {
        IgniteCache<Object, Object> cache = client2.cache(CACHE_NAME).withKeepBinary();
        while (!stop.get()) {
            ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
            qry.setInitialQuery(new ScanQuery<>((key, val) -> true));
            qry.setLocalListener(evts -> {
            });
            // noinspection EmptyTryBlock
            try (QueryCursor<Cache.Entry<Object, Object>> cursor = cache.query(qry)) {
            // No-op.
            }
        }
    });
    doSleep(10_000);
    stop.set(true);
    fut1.get(10, TimeUnit.SECONDS);
    fut2.get(10, TimeUnit.SECONDS);
}