本文整理汇总了Java中org.apache.cassandra.config.DatabaseDescriptor.setEndpointSnitch方法的典型用法代码示例。如果您正苦于以下问题：Java DatabaseDescriptor.setEndpointSnitch方法的具体用法？Java DatabaseDescriptor.setEndpointSnitch怎么用？Java DatabaseDescriptor.setEndpointSnitch使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.cassandra.config.DatabaseDescriptor的用法示例。
在下文中一共展示了DatabaseDescriptor.setEndpointSnitch方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testAllocateTokensNetworkStrategy
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
public void testAllocateTokensNetworkStrategy(int rackCount, int replicas) throws UnknownHostException
{
IEndpointSnitch oldSnitch = DatabaseDescriptor.getEndpointSnitch();
try
{
DatabaseDescriptor.setEndpointSnitch(new RackInferringSnitch());
int vn = 16;
String ks = "BootStrapperTestNTSKeyspace" + rackCount + replicas;
String dc = "1";
SchemaLoader.createKeyspace(ks, KeyspaceParams.nts(dc, replicas, "15", 15), SchemaLoader.standardCFMD(ks, "Standard1"));
TokenMetadata tm = new TokenMetadata();
tm.clearUnsafe();
for (int i = 0; i < rackCount; ++i)
generateFakeEndpoints(tm, 10, vn, dc, Integer.toString(i));
InetAddress addr = InetAddress.getByName("127." + dc + ".0.99");
allocateTokensForNode(vn, ks, tm, addr);
// Note: Not matching replication factor in second datacentre, but this should not affect us.
} finally {
DatabaseDescriptor.setEndpointSnitch(oldSnitch);
}
}
示例2: setUp
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
@BeforeClass
public static void setUp() throws ConfigurationException
{
IEndpointSnitch snitch = new PropertyFileSnitch();
DatabaseDescriptor.setEndpointSnitch(snitch);
Keyspace.setInitialized();
}
示例3: updateSnitch
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
public void updateSnitch(String epSnitchClassName, Boolean dynamic, Integer dynamicUpdateInterval, Integer dynamicResetInterval, Double dynamicBadnessThreshold) throws ClassNotFoundException
{
IEndpointSnitch oldSnitch = DatabaseDescriptor.getEndpointSnitch();
// new snitch registers mbean during construction
IEndpointSnitch newSnitch;
try
{
newSnitch = FBUtilities.construct(epSnitchClassName, "snitch");
}
catch (ConfigurationException e)
{
throw new ClassNotFoundException(e.getMessage());
}
if (dynamic)
{
DatabaseDescriptor.setDynamicUpdateInterval(dynamicUpdateInterval);
DatabaseDescriptor.setDynamicResetInterval(dynamicResetInterval);
DatabaseDescriptor.setDynamicBadnessThreshold(dynamicBadnessThreshold);
newSnitch = new DynamicEndpointSnitch(newSnitch);
}
// point snitch references to the new instance
DatabaseDescriptor.setEndpointSnitch(newSnitch);
for (String ks : Schema.instance.getKeyspaces())
{
Keyspace.open(ks).getReplicationStrategy().snitch = newSnitch;
}
if (oldSnitch instanceof DynamicEndpointSnitch)
((DynamicEndpointSnitch)oldSnitch).unregisterMBean();
}
示例4: updateSnitch
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
public void updateSnitch(String epSnitchClassName, Boolean dynamic, Integer dynamicUpdateInterval, Integer dynamicResetInterval, Double dynamicBadnessThreshold) throws ClassNotFoundException
{
IEndpointSnitch oldSnitch = DatabaseDescriptor.getEndpointSnitch();
// new snitch registers mbean during construction
IEndpointSnitch newSnitch;
try
{
newSnitch = FBUtilities.construct(epSnitchClassName, "snitch");
}
catch (ConfigurationException e)
{
throw new ClassNotFoundException(e.getMessage());
}
if (dynamic)
{
DatabaseDescriptor.setDynamicUpdateInterval(dynamicUpdateInterval);
DatabaseDescriptor.setDynamicResetInterval(dynamicResetInterval);
DatabaseDescriptor.setDynamicBadnessThreshold(dynamicBadnessThreshold);
newSnitch = new DynamicEndpointSnitch(newSnitch);
}
// point snitch references to the new instance
DatabaseDescriptor.setEndpointSnitch(newSnitch);
for (String ks : Schema.instance.getKeyspaces())
{
Keyspace.open(ks).getReplicationStrategy().snitch = newSnitch;
}
if (oldSnitch instanceof DynamicEndpointSnitch)
((DynamicEndpointSnitch)oldSnitch).unregisterMBean();
updateTopology();
}
示例5: testLargeCluster
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
@Test
public void testLargeCluster() throws UnknownHostException, ConfigurationException
{
int[] dcRacks = new int[]{2, 4, 8};
int[] dcEndpoints = new int[]{128, 256, 512};
int[] dcReplication = new int[]{2, 6, 6};
IEndpointSnitch snitch = new RackInferringSnitch();
DatabaseDescriptor.setEndpointSnitch(snitch);
TokenMetadata metadata = new TokenMetadata();
Map<String, String> configOptions = new HashMap<String, String>();
Multimap<InetAddress, Token> tokens = HashMultimap.create();
int totalRF = 0;
for (int dc = 0; dc < dcRacks.length; ++dc)
{
totalRF += dcReplication[dc];
configOptions.put(Integer.toString(dc), Integer.toString(dcReplication[dc]));
for (int rack = 0; rack < dcRacks[dc]; ++rack)
{
for (int ep = 1; ep <= dcEndpoints[dc]/dcRacks[dc]; ++ep)
{
byte[] ipBytes = new byte[]{10, (byte)dc, (byte)rack, (byte)ep};
InetAddress address = InetAddress.getByAddress(ipBytes);
StringToken token = new StringToken(String.format("%02x%02x%02x", ep, rack, dc));
logger.debug("adding node " + address + " at " + token);
tokens.put(address, token);
}
}
}
metadata.updateNormalTokens(tokens);
NetworkTopologyStrategy strategy = new NetworkTopologyStrategy(keyspaceName, metadata, snitch, configOptions);
for (String testToken : new String[]{"123456", "200000", "000402", "ffffff", "400200"})
{
List<InetAddress> endpoints = strategy.calculateNaturalEndpoints(new StringToken(testToken), metadata);
Set<InetAddress> epSet = new HashSet<InetAddress>(endpoints);
Assert.assertEquals(totalRF, endpoints.size());
Assert.assertEquals(totalRF, epSet.size());
logger.debug(testToken + ": " + endpoints.toString());
}
}
示例6: setUp
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
@BeforeClass
public static void setUp() throws ConfigurationException
{
IEndpointSnitch snitch = new PropertyFileSnitch();
DatabaseDescriptor.setEndpointSnitch(snitch);
}
示例7: testLargeCluster
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
@Test
public void testLargeCluster() throws UnknownHostException, ConfigurationException
{
int[] dcRacks = new int[]{2, 4, 8};
int[] dcEndpoints = new int[]{128, 256, 512};
int[] dcReplication = new int[]{2, 6, 6};
IEndpointSnitch snitch = new RackInferringSnitch();
DatabaseDescriptor.setEndpointSnitch(snitch);
TokenMetadata metadata = new TokenMetadata();
Map<String, String> configOptions = new HashMap<String, String>();
Multimap<InetAddress, Token> tokens = HashMultimap.create();
int totalRF = 0;
for (int dc = 0; dc < dcRacks.length; ++dc)
{
totalRF += dcReplication[dc];
configOptions.put(Integer.toString(dc), Integer.toString(dcReplication[dc]));
for (int rack = 0; rack < dcRacks[dc]; ++rack)
{
for (int ep = 1; ep <= dcEndpoints[dc]/dcRacks[dc]; ++ep)
{
byte[] ipBytes = new byte[]{10, (byte)dc, (byte)rack, (byte)ep};
InetAddress address = InetAddress.getByAddress(ipBytes);
StringToken token = new StringToken(String.format("%02x%02x%02x", ep, rack, dc));
logger.debug("adding node {} at {}", address, token);
tokens.put(address, token);
}
}
}
metadata.updateNormalTokens(tokens);
NetworkTopologyStrategy strategy = new NetworkTopologyStrategy(keyspaceName, metadata, snitch, configOptions);
for (String testToken : new String[]{"123456", "200000", "000402", "ffffff", "400200"})
{
List<InetAddress> endpoints = strategy.calculateNaturalEndpoints(new StringToken(testToken), metadata);
Set<InetAddress> epSet = new HashSet<InetAddress>(endpoints);
Assert.assertEquals(totalRF, endpoints.size());
Assert.assertEquals(totalRF, epSet.size());
logger.debug("{}: {}", testToken, endpoints);
}
}