package org.infinispan.distribution.rehash;
import org.infinispan.Cache;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.test.AbstractInfinispanTest;
import org.infinispan.test.TestingUtil;
import org.infinispan.test.fwk.TestCacheManagerFactory;
import org.testng.annotations.Test;
/**
* Tests data loss during state transfer when a single data owner is configured.
* @author Sanne Grinovero <sanne@infinispan.org> (C) 2011 Red Hat Inc.
* @author Alex Heneveld
* @author Manik Surtani
*/
@Test(groups = "functional", testName = "distribution.rehash.DataLossOnJoinOneOwnerTest")
public class DataLossOnJoinOneOwnerTest extends AbstractInfinispanTest {
private static final String VALUE = DataLossOnJoinOneOwnerTest.class.getName() + "value";
private static final String KEY = DataLossOnJoinOneOwnerTest.class.getName() + "key";
EmbeddedCacheManager cm1;
EmbeddedCacheManager cm2;
/**
* It seems that sometimes when a new node joins, existing data is lost.
* Can not reproduce with numOwners=2.
*/
public void testDataLossOnJoin() {
try {
cm1 = newCM();
Cache<String, String> c1 = cm1.getCache();
c1.put(KEY, VALUE);
hasKey(c1);
cm2 = newCM();
Cache<String, String> c2 = cm2.getCache();
TestingUtil.blockUntilViewsReceived(45000, cm1, cm2);
hasKey(c1);
hasKey(c2);
}
finally {
TestingUtil.killCacheManagers(cm1, cm2);
}
}
private void hasKey(Cache<String, String> cache) {
Object object = cache.get(KEY);
assert VALUE.equals(object);
}
public EmbeddedCacheManager newCM() {
ConfigurationBuilder c = new ConfigurationBuilder();
c.clustering().cacheMode(CacheMode.DIST_SYNC)
.hash().numOwners(1)
.clustering().l1().disable();
return TestCacheManagerFactory.createClusteredCacheManager(c);
}
}