package org.infinispan.remoting.jgroups;
import org.infinispan.Cache;
import org.infinispan.commons.CacheException;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.configuration.global.GlobalConfiguration;
import org.infinispan.configuration.global.GlobalConfigurationBuilder;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.remoting.transport.jgroups.JGroupsTransport;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.test.fwk.CleanupAfterMethod;
import org.infinispan.test.fwk.TestCacheManagerFactory;
import org.infinispan.test.fwk.TransportFlags;
import org.jgroups.Channel;
import org.jgroups.JChannel;
import org.testng.annotations.Test;
import java.util.Properties;
/**
* When the JGroups channel is started externally and injected via {@code ChannelLookup},
* there is a small window where incoming messages will be silently discarded:
* between the time the channel is started externally and the time JGroupsTransport attaches the RpcDispatcher.
*
* In replication mode a put operation would wait for a success response from all the members
* of the cluster, and if the RPC was initiated during this time window it would never get a response.
*
* This test checks that the caller doesn't get a (@code TimeoutException} waiting for a response.
*
* @since 5.1
* @author Dan Berindei <dan@infinispan.org>
*/
@Test(groups = "functional", testName = "remoting.jgroups.MissingRpcDispatcherTest",
enabled = false, description = "Temporarily disabled because I removed the cache members filter in 5.2")
@CleanupAfterMethod
public class MissingRpcDispatcherTest extends MultipleCacheManagersTest {
protected String cacheName = "replSync";
protected CacheMode cacheMode = CacheMode.REPL_SYNC;
@Override
protected void createCacheManagers() throws Exception {
ConfigurationBuilder c = getDefaultClusteredCacheConfig(cacheMode, false);
c.clustering().stateTransfer().fetchInMemoryState(true);
createClusteredCaches(1, cacheName, c);
}
public void testExtraChannelWithoutRpcDispatcher() throws Exception {
// start with a single cache
Cache<String, String> cache1 = cache(0, cacheName);
cache1.put("k1", "v1");
assert "v1".equals(cache1.get("k1"));
// create a new jgroups channel that will join the cluster
// but without attaching the Infinispan RpcDispatcher
Channel channel2 = createJGroupsChannel(manager(0).getCacheManagerConfiguration());
try {
// try the put operation again
cache1.put("k2", "v2");
assert "v2".equals(cache1.get("k2"));
// create a new cache, make sure it joins properly
ConfigurationBuilder c = getDefaultClusteredCacheConfig(cacheMode, false);
c.clustering().stateTransfer().fetchInMemoryState(true);
EmbeddedCacheManager cm = addClusterEnabledCacheManager(new TransportFlags());
cm.defineConfiguration(cacheName, c.build());
Cache<String, String> cache2 = cm.getCache(cacheName);
assert cache2.getAdvancedCache().getRpcManager().getTransport().getMembers().size() == 3;
assert "v1".equals(cache1.get("k1"));
assert "v2".equals(cache1.get("k2"));
cache1.put("k1", "v1_2");
cache2.put("k2", "v2_2");
assert "v1_2".equals(cache1.get("k1"));
assert "v2_2".equals(cache1.get("k2"));
} finally {
channel2.close();
}
}
private Channel createJGroupsChannel(GlobalConfiguration oldGC) {
GlobalConfigurationBuilder builder = new GlobalConfigurationBuilder().read(oldGC);
TestCacheManagerFactory.amendTransport(builder);
GlobalConfiguration gc = builder.build();
Properties p = gc.transport().properties();
String jgroupsCfg = p.getProperty(JGroupsTransport.CONFIGURATION_STRING);
try {
JChannel channel = new JChannel(jgroupsCfg);
channel.setName(gc.transport().nodeName());
channel.connect(gc.transport().clusterName());
return channel;
} catch (Exception e) {
throw new CacheException(e);
}
}
}