RehashAfterPartitionMergeTest.java

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 * See the copyright.txt in the distribution for a full listing of
 * individual contributors.
 *
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 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
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package org.infinispan.distribution.rehash;

import org.infinispan.Cache;
import org.infinispan.config.Configuration;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.test.TestingUtil;
import org.infinispan.test.fwk.TransportFlags;
import org.jgroups.protocols.DISCARD;
import org.testng.annotations.Test;

import java.util.List;

@Test(groups = "functional", testName =  "distribution.rehash.RehashAfterPartitionMergeTest")
public class RehashAfterPartitionMergeTest extends MultipleCacheManagersTest {

   protected Cache<Object, Object> c1;
   protected Cache<Object, Object> c2;
   protected List<Cache<Object, Object>> caches;
   protected DISCARD d1;
   protected DISCARD d2;

   @Override
   protected void createCacheManagers() throws Throwable {
      caches = createClusteredCaches(2, "test",
            getDefaultClusteredConfig(Configuration.CacheMode.DIST_SYNC),
                  new TransportFlags().withFD(true).withMerge(true));

      c1 = caches.get(0);
      c2 = caches.get(1);
      d1 = TestingUtil.getDiscardForCache(c1);
      d2 = TestingUtil.getDiscardForCache(c2);
   }

   public void testCachePartition() {
      c1.put("1", "value");
      c2.put("2", "value");

      for (Cache<Object, Object> c: caches) {
         assert "value".equals(c.get("1"));
         assert "value".equals(c.get("2"));
         assert manager(c).getMembers().size() == 2;
      }

      d1.setDiscardAll(true);
      d2.setDiscardAll(true);

      // Wait until c1 and c2 have a view of 1 member each
      TestingUtil.blockUntilViewsChanged(60000, 1, c1, c2);

      // we should see a network partition
      for (Cache<Object, Object> c: caches) assert manager(c).getMembers().size() == 1;

      c1.put("3", "value");
      c2.put("4", "value");

      assert "value".equals(c1.get("3"));
      assert null == c2.get("3");

      assert "value".equals(c2.get("4"));
      assert null == c1.get("4");

      // lets "heal" the partition
      d1.setDiscardAll(false);
      d2.setDiscardAll(false);

      // Wait until c1 and c2 have a view of 2 members each
      TestingUtil.blockUntilViewsChanged(45000, 2, c1, c2);

      TestingUtil.waitForRehashToComplete(c1, c2);

      c1.put("5", "value");
      c2.put("6", "value");
      for (Cache<Object, Object> c: caches) {
         assert "value".equals(c.get("5"));
         assert "value".equals(c.get("6"));
         assert manager(c).getMembers().size() == 2;
      }      
   }

}