[IGNITE-3505] BinaryObject keys can't be reused because of partition caching.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6
• Fix Version/s: 1.7
• Assignee: Denis A. Magda
• Reporter: Alexey Scherbakov
• Created: 19/Jul/16 10:52
• Updated: 22/Jul/16 11:22
• Resolved: 22/Jul/16 11:22

Description

BinaryObject can't be reused as key between caches because it's
actual implementation BinaryObjectImpl implements KeyCacheObject and
due to the fact caches partition, which is not recalculated later.

See org.apache.ignite.internal.processors.cache.GridCacheAffinityManager.partition:

if (key instanceof KeyCacheObject && ((KeyCacheObject)key).partition() != -1)
            return ((KeyCacheObject)key).partition();

The issue can be reproduced with the following code:

public static void main(String[] args) throws IgniteException {
        IgniteConfiguration cfg = new IgniteConfiguration();
        cfg.setDiscoverySpi(new TcpDiscoverySpi().setIpFinder(new TcpDiscoveryVmIpFinder(true)));
        Ignite ignite = Ignition.start(cfg);
        CacheConfiguration<BinaryObject, BinaryObject> cfg1 = new
            CacheConfiguration<>("Cache 1");
        cfg1.setCacheMode(CacheMode.PARTITIONED);
        cfg1.setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL);

        IgniteCache<BinaryObject, BinaryObject> cache1 =
            ignite.getOrCreateCache(cfg1).withKeepBinary();

        CacheConfiguration<BinaryObject, BinaryObject> cfg2 = new
            CacheConfiguration<>("Cache 2");
        cfg2.setCacheMode(CacheMode.REPLICATED);

        cfg2.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
        IgniteCache<BinaryObject, BinaryObject> cache2 =
            ignite.getOrCreateCache(cfg2);

        BinaryObjectBuilder keyBuilder = ignite.binary().builder("keyType")
                .setField("F1", "V1").hashCode("V1".hashCode());

        BinaryObjectBuilder valBuilder = ignite.binary().builder("valueType")
                .setField("F2", "V2")
                .setField("F3", "V3");

        BinaryObject key = keyBuilder.build();
        BinaryObject val = valBuilder.build();

        cache1.put(key, val);
        cache2.put(key, val); // error

        System.out.println(cache1.get(key)); // error
        System.out.println(cache2.get(key)); 
    }

Corresponding user list thread: http://apache-ignite-users.70518.x6.nabble.com/Adding-a-binary-object-to-two-caches-fails-with-FULL-SYNC-write-mode-configured-for-the-replicated-ce-tp6343p6366.html