/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.config;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableSet;
import com.google.common.primitives.Longs;
import org.apache.cassandra.thrift.ThriftServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.cassandra.auth.AllowAllAuthenticator;
import org.apache.cassandra.auth.AllowAllAuthorizer;
import org.apache.cassandra.auth.AllowAllInternodeAuthenticator;
import org.apache.cassandra.auth.IAuthenticator;
import org.apache.cassandra.auth.IAuthorizer;
import org.apache.cassandra.auth.IInternodeAuthenticator;
import org.apache.cassandra.config.Config.RequestSchedulerId;
import org.apache.cassandra.config.EncryptionOptions.ClientEncryptionOptions;
import org.apache.cassandra.config.EncryptionOptions.ServerEncryptionOptions;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.DefsTables;
import org.apache.cassandra.db.SystemKeyspace;
import org.apache.cassandra.dht.IPartitioner;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.io.FSWriteError;
import org.apache.cassandra.io.util.FileUtils;
import org.apache.cassandra.io.util.IAllocator;
import org.apache.cassandra.locator.DynamicEndpointSnitch;
import org.apache.cassandra.locator.EndpointSnitchInfo;
import org.apache.cassandra.locator.IEndpointSnitch;
import org.apache.cassandra.locator.SeedProvider;
import org.apache.cassandra.net.MessagingService;
import org.apache.cassandra.scheduler.IRequestScheduler;
import org.apache.cassandra.scheduler.NoScheduler;
import org.apache.cassandra.service.CacheService;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.FBUtilities;
import org.apache.cassandra.utils.JVMStabilityInspector;
import org.apache.cassandra.utils.memory.HeapPool;
import org.apache.cassandra.utils.memory.NativePool;
import org.apache.cassandra.utils.memory.MemtablePool;
import org.apache.cassandra.utils.memory.SlabPool;
public class DatabaseDescriptor
{
private static final Logger logger = LoggerFactory.getLogger(DatabaseDescriptor.class);
/**
* Tokens are serialized in a Gossip VersionedValue String. VV are restricted to 64KB
* when we send them over the wire, which works out to about 1700 tokens.
*/
private static final int MAX_NUM_TOKENS = 1536;
private static IEndpointSnitch snitch;
private static InetAddress listenAddress; // leave null so we can fall through to getLocalHost
private static InetAddress broadcastAddress;
private static InetAddress rpcAddress;
private static InetAddress broadcastRpcAddress;
private static SeedProvider seedProvider;
private static IInternodeAuthenticator internodeAuthenticator;
/* Hashing strategy Random or OPHF */
private static IPartitioner partitioner;
private static String paritionerName;
private static Config.DiskAccessMode indexAccessMode;
private static Config conf;
private static IAuthenticator authenticator = new AllowAllAuthenticator();
private static IAuthorizer authorizer = new AllowAllAuthorizer();
private static IRequestScheduler requestScheduler;
private static RequestSchedulerId requestSchedulerId;
private static RequestSchedulerOptions requestSchedulerOptions;
private static long keyCacheSizeInMB;
private static long counterCacheSizeInMB;
private static IAllocator memoryAllocator;
private static long indexSummaryCapacityInMB;
private static String localDC;
private static Comparator<InetAddress> localComparator;
static
{
// In client mode, we use a default configuration. Note that the fields of this class will be
// left unconfigured however (the partitioner or localDC will be null for instance) so this
// should be used with care.
try
{
if (Config.isClientMode())
{
conf = new Config();
// at least we have to set memoryAllocator to open SSTable in client mode
memoryAllocator = FBUtilities.newOffHeapAllocator(conf.memory_allocator);
}
else
{
applyConfig(loadConfig());
}
}
catch (ConfigurationException e)
{
logger.error("Fatal configuration error", e);
System.err.println(e.getMessage() + "\nFatal configuration error; unable to start. See log for stacktrace.");
System.exit(1);
}
catch (Exception e)
{
logger.error("Fatal error during configuration loading", e);
System.err.println(e.getMessage() + "\nFatal error during configuration loading; unable to start. See log for stacktrace.");
JVMStabilityInspector.inspectThrowable(e);
System.exit(1);
}
}
@VisibleForTesting
public static Config loadConfig() throws ConfigurationException
{
String loaderClass = System.getProperty("cassandra.config.loader");
ConfigurationLoader loader = loaderClass == null
? new YamlConfigurationLoader()
: FBUtilities.<ConfigurationLoader>construct(loaderClass, "configuration loading");
return loader.loadConfig();
}
private static InetAddress getNetworkInterfaceAddress(String intf, String configName, boolean preferIPv6) throws ConfigurationException
{
try
{
NetworkInterface ni = NetworkInterface.getByName(intf);
if (ni == null)
throw new ConfigurationException("Configured " + configName + " \"" + intf + "\" could not be found");
Enumeration<InetAddress> addrs = ni.getInetAddresses();
if (!addrs.hasMoreElements())
throw new ConfigurationException("Configured " + configName + " \"" + intf + "\" was found, but had no addresses");
/*
* Try to return the first address of the preferred type, otherwise return the first address
*/
InetAddress retval = null;
while (addrs.hasMoreElements())
{
InetAddress temp = addrs.nextElement();
if (preferIPv6 && temp.getClass() == Inet6Address.class) return temp;
if (!preferIPv6 && temp.getClass() == Inet4Address.class) return temp;
if (retval == null) retval = temp;
}
return retval;
}
catch (SocketException e)
{
throw new ConfigurationException("Configured " + configName + " \"" + intf + "\" caused an exception", e);
}
}
@VisibleForTesting
static void applyAddressConfig(Config config) throws ConfigurationException
{
listenAddress = null;
rpcAddress = null;
broadcastAddress = null;
broadcastRpcAddress = null;
/* Local IP, hostname or interface to bind services to */
if (config.listen_address != null && config.listen_interface != null)
{
throw new ConfigurationException("Set listen_address OR listen_interface, not both");
}
else if (config.listen_address != null)
{
try
{
listenAddress = InetAddress.getByName(config.listen_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown listen_address '" + config.listen_address + "'");
}
if (listenAddress.isAnyLocalAddress())
throw new ConfigurationException("listen_address cannot be a wildcard address (" + config.listen_address + ")!");
}
else if (config.listen_interface != null)
{
listenAddress = getNetworkInterfaceAddress(config.listen_interface, "listen_interface", config.listen_interface_prefer_ipv6);
}
/* Gossip Address to broadcast */
if (config.broadcast_address != null)
{
try
{
broadcastAddress = InetAddress.getByName(config.broadcast_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown broadcast_address '" + config.broadcast_address + "'");
}
if (broadcastAddress.isAnyLocalAddress())
throw new ConfigurationException("broadcast_address cannot be a wildcard address (" + config.broadcast_address + ")!");
}
/* Local IP, hostname or interface to bind RPC server to */
if (config.rpc_address != null && config.rpc_interface != null)
{
throw new ConfigurationException("Set rpc_address OR rpc_interface, not both");
}
else if (config.rpc_address != null)
{
try
{
rpcAddress = InetAddress.getByName(config.rpc_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown host in rpc_address " + config.rpc_address);
}
}
else if (config.rpc_interface != null)
{
rpcAddress = getNetworkInterfaceAddress(config.rpc_interface, "rpc_interface", config.rpc_interface_prefer_ipv6);
}
else
{
rpcAddress = FBUtilities.getLocalAddress();
}
/* RPC address to broadcast */
if (config.broadcast_rpc_address != null)
{
try
{
broadcastRpcAddress = InetAddress.getByName(config.broadcast_rpc_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown broadcast_rpc_address '" + config.broadcast_rpc_address + "'");
}
if (broadcastRpcAddress.isAnyLocalAddress())
throw new ConfigurationException("broadcast_rpc_address cannot be a wildcard address (" + config.broadcast_rpc_address + ")!");
}
else
{
if (rpcAddress.isAnyLocalAddress())
throw new ConfigurationException("If rpc_address is set to a wildcard address (" + config.rpc_address + "), then " +
"you must set broadcast_rpc_address to a value other than " + config.rpc_address);
broadcastRpcAddress = rpcAddress;
}
}
private static void applyConfig(Config config) throws ConfigurationException
{
conf = config;
if (conf.commitlog_sync == null)
{
throw new ConfigurationException("Missing required directive CommitLogSync");
}
if (conf.commitlog_sync == Config.CommitLogSync.batch)
{
if (conf.commitlog_sync_batch_window_in_ms == null)
{
throw new ConfigurationException("Missing value for commitlog_sync_batch_window_in_ms: Double expected.");
}
else if (conf.commitlog_sync_period_in_ms != null)
{
throw new ConfigurationException("Batch sync specified, but commitlog_sync_period_in_ms found. Only specify commitlog_sync_batch_window_in_ms when using batch sync");
}
logger.debug("Syncing log with a batch window of {}", conf.commitlog_sync_batch_window_in_ms);
}
else
{
if (conf.commitlog_sync_period_in_ms == null)
{
throw new ConfigurationException("Missing value for commitlog_sync_period_in_ms: Integer expected");
}
else if (conf.commitlog_sync_batch_window_in_ms != null)
{
throw new ConfigurationException("commitlog_sync_period_in_ms specified, but commitlog_sync_batch_window_in_ms found. Only specify commitlog_sync_period_in_ms when using periodic sync.");
}
logger.debug("Syncing log with a period of {}", conf.commitlog_sync_period_in_ms);
}
if (conf.commitlog_total_space_in_mb == null)
conf.commitlog_total_space_in_mb = hasLargeAddressSpace() ? 8192 : 32;
// Always force standard mode access on Windows - CASSANDRA-6993. Windows won't allow deletion of hard-links to files that
// are memory-mapped which causes trouble with snapshots.
if (FBUtilities.isWindows())
{
conf.disk_access_mode = Config.DiskAccessMode.standard;
indexAccessMode = conf.disk_access_mode;
logger.info("Windows environment detected. DiskAccessMode set to {}, indexAccessMode {}", conf.disk_access_mode, indexAccessMode);
}
else
{
/* evaluate the DiskAccessMode Config directive, which also affects indexAccessMode selection */
if (conf.disk_access_mode == Config.DiskAccessMode.auto)
{
conf.disk_access_mode = hasLargeAddressSpace() ? Config.DiskAccessMode.mmap : Config.DiskAccessMode.standard;
indexAccessMode = conf.disk_access_mode;
logger.info("DiskAccessMode 'auto' determined to be {}, indexAccessMode is {}", conf.disk_access_mode, indexAccessMode);
}
else if (conf.disk_access_mode == Config.DiskAccessMode.mmap_index_only)
{
conf.disk_access_mode = Config.DiskAccessMode.standard;
indexAccessMode = Config.DiskAccessMode.mmap;
logger.info("DiskAccessMode is {}, indexAccessMode is {}", conf.disk_access_mode, indexAccessMode);
}
else
{
indexAccessMode = conf.disk_access_mode;
logger.info("DiskAccessMode is {}, indexAccessMode is {}", conf.disk_access_mode, indexAccessMode);
}
}
/* Authentication and authorization backend, implementing IAuthenticator and IAuthorizer */
if (conf.authenticator != null)
authenticator = FBUtilities.newAuthenticator(conf.authenticator);
if (conf.authorizer != null)
authorizer = FBUtilities.newAuthorizer(conf.authorizer);
if (authenticator instanceof AllowAllAuthenticator && !(authorizer instanceof AllowAllAuthorizer))
throw new ConfigurationException("AllowAllAuthenticator can't be used with " + conf.authorizer);
if (conf.internode_authenticator != null)
internodeAuthenticator = FBUtilities.construct(conf.internode_authenticator, "internode_authenticator");
else
internodeAuthenticator = new AllowAllInternodeAuthenticator();
authenticator.validateConfiguration();
authorizer.validateConfiguration();
internodeAuthenticator.validateConfiguration();
/* Hashing strategy */
if (conf.partitioner == null)
{
throw new ConfigurationException("Missing directive: partitioner");
}
try
{
partitioner = FBUtilities.newPartitioner(System.getProperty("cassandra.partitioner", conf.partitioner));
}
catch (Exception e)
{
throw new ConfigurationException("Invalid partitioner class " + conf.partitioner);
}
paritionerName = partitioner.getClass().getCanonicalName();
if (conf.max_hint_window_in_ms == null)
{
throw new ConfigurationException("max_hint_window_in_ms cannot be set to null");
}
/* phi convict threshold for FailureDetector */
if (conf.phi_convict_threshold < 5 || conf.phi_convict_threshold > 16)
{
throw new ConfigurationException("phi_convict_threshold must be between 5 and 16");
}
/* Thread per pool */
if (conf.concurrent_reads != null && conf.concurrent_reads < 2)
{
throw new ConfigurationException("concurrent_reads must be at least 2");
}
if (conf.concurrent_writes != null && conf.concurrent_writes < 2)
{
throw new ConfigurationException("concurrent_writes must be at least 2");
}
if (conf.concurrent_counter_writes != null && conf.concurrent_counter_writes < 2)
throw new ConfigurationException("concurrent_counter_writes must be at least 2");
if (conf.concurrent_replicates != null)
logger.warn("concurrent_replicates has been deprecated and should be removed from cassandra.yaml");
if (conf.file_cache_size_in_mb == null)
conf.file_cache_size_in_mb = Math.min(512, (int) (Runtime.getRuntime().maxMemory() / (4 * 1048576)));
if (conf.memtable_offheap_space_in_mb == null)
conf.memtable_offheap_space_in_mb = (int) (Runtime.getRuntime().maxMemory() / (4 * 1048576));
if (conf.memtable_offheap_space_in_mb < 0)
throw new ConfigurationException("memtable_offheap_space_in_mb must be positive");
// for the moment, we default to twice as much on-heap space as off-heap, as heap overhead is very large
if (conf.memtable_heap_space_in_mb == null)
conf.memtable_heap_space_in_mb = (int) (Runtime.getRuntime().maxMemory() / (4 * 1048576));
if (conf.memtable_heap_space_in_mb <= 0)
throw new ConfigurationException("memtable_heap_space_in_mb must be positive");
logger.info("Global memtable on-heap threshold is enabled at {}MB", conf.memtable_heap_space_in_mb);
if (conf.memtable_offheap_space_in_mb == 0)
logger.info("Global memtable off-heap threshold is disabled, HeapAllocator will be used instead");
else
logger.info("Global memtable off-heap threshold is enabled at {}MB", conf.memtable_offheap_space_in_mb);
applyAddressConfig(config);
if (conf.thrift_framed_transport_size_in_mb <= 0)
throw new ConfigurationException("thrift_framed_transport_size_in_mb must be positive");
if (conf.native_transport_max_frame_size_in_mb <= 0)
throw new ConfigurationException("native_transport_max_frame_size_in_mb must be positive");
// fail early instead of OOMing (see CASSANDRA-8116)
if (ThriftServer.HSHA.equals(conf.rpc_server_type) && conf.rpc_max_threads == Integer.MAX_VALUE)
throw new ConfigurationException("The hsha rpc_server_type is not compatible with an rpc_max_threads " +
"setting of 'unlimited'. Please see the comments in cassandra.yaml " +
"for rpc_server_type and rpc_max_threads.");
/* end point snitch */
if (conf.endpoint_snitch == null)
{
throw new ConfigurationException("Missing endpoint_snitch directive");
}
snitch = createEndpointSnitch(conf.endpoint_snitch);
EndpointSnitchInfo.create();
localDC = snitch.getDatacenter(FBUtilities.getBroadcastAddress());
localComparator = new Comparator<InetAddress>()
{
public int compare(InetAddress endpoint1, InetAddress endpoint2)
{
boolean local1 = localDC.equals(snitch.getDatacenter(endpoint1));
boolean local2 = localDC.equals(snitch.getDatacenter(endpoint2));
if (local1 && !local2)
return -1;
if (local2 && !local1)
return 1;
return 0;
}
};
/* Request Scheduler setup */
requestSchedulerOptions = conf.request_scheduler_options;
if (conf.request_scheduler != null)
{
try
{
if (requestSchedulerOptions == null)
{
requestSchedulerOptions = new RequestSchedulerOptions();
}
Class<?> cls = Class.forName(conf.request_scheduler);
requestScheduler = (IRequestScheduler) cls.getConstructor(RequestSchedulerOptions.class).newInstance(requestSchedulerOptions);
}
catch (ClassNotFoundException e)
{
throw new ConfigurationException("Invalid Request Scheduler class " + conf.request_scheduler);
}
catch (Exception e)
{
throw new ConfigurationException("Unable to instantiate request scheduler", e);
}
}
else
{
requestScheduler = new NoScheduler();
}
if (conf.request_scheduler_id == RequestSchedulerId.keyspace)
{
requestSchedulerId = conf.request_scheduler_id;
}
else
{
// Default to Keyspace
requestSchedulerId = RequestSchedulerId.keyspace;
}
// if data dirs, commitlog dir, or saved caches dir are set in cassandra.yaml, use that. Otherwise,
// use -Dcassandra.storagedir (set in cassandra-env.sh) as the parent dir for data/, commitlog/, and saved_caches/
if (conf.commitlog_directory == null)
{
conf.commitlog_directory = System.getProperty("cassandra.storagedir", null);
if (conf.commitlog_directory == null)
throw new ConfigurationException("commitlog_directory is missing and -Dcassandra.storagedir is not set");
conf.commitlog_directory += File.separator + "commitlog";
}
if (conf.saved_caches_directory == null)
{
conf.saved_caches_directory = System.getProperty("cassandra.storagedir", null);
if (conf.saved_caches_directory == null)
throw new ConfigurationException("saved_caches_directory is missing and -Dcassandra.storagedir is not set");
conf.saved_caches_directory += File.separator + "saved_caches";
}
if (conf.data_file_directories == null)
{
String defaultDataDir = System.getProperty("cassandra.storagedir", null);
if (defaultDataDir == null)
throw new ConfigurationException("data_file_directories is not missing and -Dcassandra.storagedir is not set");
conf.data_file_directories = new String[]{ defaultDataDir + File.separator + "data" };
}
/* data file and commit log directories. they get created later, when they're needed. */
for (String datadir : conf.data_file_directories)
{
if (datadir.equals(conf.commitlog_directory))
throw new ConfigurationException("commitlog_directory must not be the same as any data_file_directories");
if (datadir.equals(conf.saved_caches_directory))
throw new ConfigurationException("saved_caches_directory must not be the same as any data_file_directories");
}
if (conf.commitlog_directory.equals(conf.saved_caches_directory))
throw new ConfigurationException("saved_caches_directory must not be the same as the commitlog_directory");
if (conf.memtable_flush_writers == null)
conf.memtable_flush_writers = Math.min(8, Math.max(2, Math.min(FBUtilities.getAvailableProcessors(), conf.data_file_directories.length)));
if (conf.memtable_flush_writers < 1)
throw new ConfigurationException("memtable_flush_writers must be at least 1");
if (conf.memtable_cleanup_threshold == null)
conf.memtable_cleanup_threshold = (float) (1.0 / (1 + conf.memtable_flush_writers));
if (conf.memtable_cleanup_threshold < 0.01f)
throw new ConfigurationException("memtable_cleanup_threshold must be >= 0.01");
if (conf.memtable_cleanup_threshold > 0.99f)
throw new ConfigurationException("memtable_cleanup_threshold must be <= 0.99");
if (conf.memtable_cleanup_threshold < 0.1f)
logger.warn("memtable_cleanup_threshold is set very low, which may cause performance degradation");
if (conf.concurrent_compactors == null)
conf.concurrent_compactors = Math.min(8, Math.max(2, Math.min(FBUtilities.getAvailableProcessors(), conf.data_file_directories.length)));
if (conf.concurrent_compactors <= 0)
throw new ConfigurationException("concurrent_compactors should be strictly greater than 0");
if (conf.initial_token != null)
for (String token : tokensFromString(conf.initial_token))
partitioner.getTokenFactory().validate(token);
if (conf.num_tokens == null)
conf.num_tokens = 1;
else if (conf.num_tokens > MAX_NUM_TOKENS)
throw new ConfigurationException(String.format("A maximum number of %d tokens per node is supported", MAX_NUM_TOKENS));
try
{
// if key_cache_size_in_mb option was set to "auto" then size of the cache should be "min(5% of Heap (in MB), 100MB)
keyCacheSizeInMB = (conf.key_cache_size_in_mb == null)
? Math.min(Math.max(1, (int) (Runtime.getRuntime().totalMemory() * 0.05 / 1024 / 1024)), 100)
: conf.key_cache_size_in_mb;
if (keyCacheSizeInMB < 0)
throw new NumberFormatException(); // to escape duplicating error message
}
catch (NumberFormatException e)
{
throw new ConfigurationException("key_cache_size_in_mb option was set incorrectly to '"
+ conf.key_cache_size_in_mb + "', supported values are <integer> >= 0.");
}
try
{
// if counter_cache_size_in_mb option was set to "auto" then size of the cache should be "min(2.5% of Heap (in MB), 50MB)
counterCacheSizeInMB = (conf.counter_cache_size_in_mb == null)
? Math.min(Math.max(1, (int) (Runtime.getRuntime().totalMemory() * 0.025 / 1024 / 1024)), 50)
: conf.counter_cache_size_in_mb;
if (counterCacheSizeInMB < 0)
throw new NumberFormatException(); // to escape duplicating error message
}
catch (NumberFormatException e)
{
throw new ConfigurationException("counter_cache_size_in_mb option was set incorrectly to '"
+ conf.counter_cache_size_in_mb + "', supported values are <integer> >= 0.");
}
// if set to empty/"auto" then use 5% of Heap size
indexSummaryCapacityInMB = (conf.index_summary_capacity_in_mb == null)
? Math.max(1, (int) (Runtime.getRuntime().totalMemory() * 0.05 / 1024 / 1024))
: conf.index_summary_capacity_in_mb;
if (indexSummaryCapacityInMB < 0)
throw new ConfigurationException("index_summary_capacity_in_mb option was set incorrectly to '"
+ conf.index_summary_capacity_in_mb + "', it should be a non-negative integer.");
memoryAllocator = FBUtilities.newOffHeapAllocator(conf.memory_allocator);
if(conf.encryption_options != null)
{
logger.warn("Please rename encryption_options as server_encryption_options in the yaml");
//operate under the assumption that server_encryption_options is not set in yaml rather than both
conf.server_encryption_options = conf.encryption_options;
}
// Hardcoded system keyspaces
List<KSMetaData> systemKeyspaces = Arrays.asList(KSMetaData.systemKeyspace());
assert systemKeyspaces.size() == Schema.systemKeyspaceNames.size();
for (KSMetaData ksmd : systemKeyspaces)
Schema.instance.load(ksmd);
/* Load the seeds for node contact points */
if (conf.seed_provider == null)
{
throw new ConfigurationException("seeds configuration is missing; a minimum of one seed is required.");
}
try
{
Class<?> seedProviderClass = Class.forName(conf.seed_provider.class_name);
seedProvider = (SeedProvider)seedProviderClass.getConstructor(Map.class).newInstance(conf.seed_provider.parameters);
}
// there are about 5 checked exceptions that could be thrown here.
catch (Exception e)
{
logger.error("Fatal configuration error", e);
System.err.println(e.getMessage() + "\nFatal configuration error; unable to start server. See log for stacktrace.");
System.exit(1);
}
if (seedProvider.getSeeds().size() == 0)
throw new ConfigurationException("The seed provider lists no seeds.");
}
private static IEndpointSnitch createEndpointSnitch(String snitchClassName) throws ConfigurationException
{
if (!snitchClassName.contains("."))
snitchClassName = "org.apache.cassandra.locator." + snitchClassName;
IEndpointSnitch snitch = FBUtilities.construct(snitchClassName, "snitch");
return conf.dynamic_snitch ? new DynamicEndpointSnitch(snitch) : snitch;
}
/**
* load keyspace (keyspace) definitions, but do not initialize the keyspace instances.
* Schema version may be updated as the result.
*/
public static void loadSchemas()
{
loadSchemas(true);
}
/**
* Load schema definitions.
*
* @param updateVersion true if schema version needs to be updated
*/
public static void loadSchemas(boolean updateVersion)
{
ColumnFamilyStore schemaCFS = SystemKeyspace.schemaCFS(SystemKeyspace.SCHEMA_KEYSPACES_CF);
// if keyspace with definitions is empty try loading the old way
if (schemaCFS.estimateKeys() == 0)
{
logger.info("Couldn't detect any schema definitions in local storage.");
// peek around the data directories to see if anything is there.
if (hasExistingNoSystemTables())
logger.info("Found keyspace data in data directories. Consider using cqlsh to define your schema.");
else
logger.info("To create keyspaces and column families, see 'help create' in cqlsh.");
}
else
{
Schema.instance.load(DefsTables.loadFromKeyspace());
}
if (updateVersion)
Schema.instance.updateVersion();
}
private static boolean hasExistingNoSystemTables()
{
for (String dataDir : getAllDataFileLocations())
{
File dataPath = new File(dataDir);
if (dataPath.exists() && dataPath.isDirectory())
{
// see if there are other directories present.
int dirCount = dataPath.listFiles(new FileFilter()
{
public boolean accept(File pathname)
{
return (pathname.isDirectory() && !Schema.systemKeyspaceNames.contains(pathname.getName()));
}
}).length;
if (dirCount > 0)
return true;
}
}
return false;
}
public static IAuthenticator getAuthenticator()
{
return authenticator;
}
public static IAuthorizer getAuthorizer()
{
return authorizer;
}
public static int getPermissionsValidity()
{
return conf.permissions_validity_in_ms;
}
public static void setPermissionsValidity(int timeout)
{
conf.permissions_validity_in_ms = timeout;
}
public static int getPermissionsCacheMaxEntries()
{
return conf.permissions_cache_max_entries;
}
public static int getPermissionsUpdateInterval()
{
return conf.permissions_update_interval_in_ms == -1
? conf.permissions_validity_in_ms
: conf.permissions_update_interval_in_ms;
}
public static void setPermissionsUpdateInterval(int updateInterval)
{
conf.permissions_update_interval_in_ms = updateInterval;
}
public static int getThriftFramedTransportSize()
{
return conf.thrift_framed_transport_size_in_mb * 1024 * 1024;
}
/**
* Creates all storage-related directories.
*/
public static void createAllDirectories()
{
try
{
if (conf.data_file_directories.length == 0)
throw new ConfigurationException("At least one DataFileDirectory must be specified");
for (String dataFileDirectory : conf.data_file_directories)
{
FileUtils.createDirectory(dataFileDirectory);
}
if (conf.commitlog_directory == null)
throw new ConfigurationException("commitlog_directory must be specified");
FileUtils.createDirectory(conf.commitlog_directory);
if (conf.saved_caches_directory == null)
throw new ConfigurationException("saved_caches_directory must be specified");
FileUtils.createDirectory(conf.saved_caches_directory);
}
catch (ConfigurationException e)
{
logger.error("Fatal error: {}", e.getMessage());
System.err.println("Bad configuration; unable to start server");
System.exit(1);
}
catch (FSWriteError e)
{
logger.error("Fatal error: {}", e.getMessage());
System.err.println(e.getCause().getMessage() + "; unable to start server");
System.exit(1);
}
}
public static IPartitioner getPartitioner()
{
return partitioner;
}
public static String getPartitionerName()
{
return paritionerName;
}
/* For tests ONLY, don't use otherwise or all hell will break loose */
public static void setPartitioner(IPartitioner newPartitioner)
{
partitioner = newPartitioner;
}
public static IEndpointSnitch getEndpointSnitch()
{
return snitch;
}
public static void setEndpointSnitch(IEndpointSnitch eps)
{
snitch = eps;
}
public static IRequestScheduler getRequestScheduler()
{
return requestScheduler;
}
public static RequestSchedulerOptions getRequestSchedulerOptions()
{
return requestSchedulerOptions;
}
public static RequestSchedulerId getRequestSchedulerId()
{
return requestSchedulerId;
}
public static int getColumnIndexSize()
{
return conf.column_index_size_in_kb * 1024;
}
public static int getBatchSizeWarnThreshold()
{
return conf.batch_size_warn_threshold_in_kb * 1024;
}
public static Collection<String> getInitialTokens()
{
return tokensFromString(System.getProperty("cassandra.initial_token", conf.initial_token));
}
public static Collection<String> tokensFromString(String tokenString)
{
List<String> tokens = new ArrayList<String>();
if (tokenString != null)
for (String token : tokenString.split(","))
tokens.add(token.replaceAll("^\\s+", "").replaceAll("\\s+$", ""));
return tokens;
}
public static Integer getNumTokens()
{
return conf.num_tokens;
}
public static InetAddress getReplaceAddress()
{
try
{
if (System.getProperty("cassandra.replace_address", null) != null)
return InetAddress.getByName(System.getProperty("cassandra.replace_address", null));
else if (System.getProperty("cassandra.replace_address_first_boot", null) != null)
return InetAddress.getByName(System.getProperty("cassandra.replace_address_first_boot", null));
return null;
}
catch (UnknownHostException e)
{
return null;
}
}
public static Collection<String> getReplaceTokens()
{
return tokensFromString(System.getProperty("cassandra.replace_token", null));
}
public static UUID getReplaceNode()
{
try
{
return UUID.fromString(System.getProperty("cassandra.replace_node", null));
} catch (NullPointerException e)
{
return null;
}
}
public static boolean isReplacing()
{
if (System.getProperty("cassandra.replace_address_first_boot", null) != null && SystemKeyspace.bootstrapComplete())
{
logger.info("Replace address on first boot requested; this node is already bootstrapped");
return false;
}
return getReplaceAddress() != null;
}
public static String getClusterName()
{
return conf.cluster_name;
}
public static int getMaxStreamingRetries()
{
return conf.max_streaming_retries;
}
public static int getStoragePort()
{
return Integer.parseInt(System.getProperty("cassandra.storage_port", conf.storage_port.toString()));
}
public static int getSSLStoragePort()
{
return Integer.parseInt(System.getProperty("cassandra.ssl_storage_port", conf.ssl_storage_port.toString()));
}
public static int getRpcPort()
{
return Integer.parseInt(System.getProperty("cassandra.rpc_port", conf.rpc_port.toString()));
}
public static int getRpcListenBacklog()
{
return conf.rpc_listen_backlog;
}
public static long getRpcTimeout()
{
return conf.request_timeout_in_ms;
}
public static void setRpcTimeout(Long timeOutInMillis)
{
conf.request_timeout_in_ms = timeOutInMillis;
}
public static long getReadRpcTimeout()
{
return conf.read_request_timeout_in_ms;
}
public static void setReadRpcTimeout(Long timeOutInMillis)
{
conf.read_request_timeout_in_ms = timeOutInMillis;
}
public static long getRangeRpcTimeout()
{
return conf.range_request_timeout_in_ms;
}
public static void setRangeRpcTimeout(Long timeOutInMillis)
{
conf.range_request_timeout_in_ms = timeOutInMillis;
}
public static long getWriteRpcTimeout()
{
return conf.write_request_timeout_in_ms;
}
public static void setWriteRpcTimeout(Long timeOutInMillis)
{
conf.write_request_timeout_in_ms = timeOutInMillis;
}
public static long getCounterWriteRpcTimeout()
{
return conf.counter_write_request_timeout_in_ms;
}
public static void setCounterWriteRpcTimeout(Long timeOutInMillis)
{
conf.counter_write_request_timeout_in_ms = timeOutInMillis;
}
public static long getCasContentionTimeout()
{
return conf.cas_contention_timeout_in_ms;
}
public static void setCasContentionTimeout(Long timeOutInMillis)
{
conf.cas_contention_timeout_in_ms = timeOutInMillis;
}
public static long getTruncateRpcTimeout()
{
return conf.truncate_request_timeout_in_ms;
}
public static void setTruncateRpcTimeout(Long timeOutInMillis)
{
conf.truncate_request_timeout_in_ms = timeOutInMillis;
}
public static boolean hasCrossNodeTimeout()
{
return conf.cross_node_timeout;
}
// not part of the Verb enum so we can change timeouts easily via JMX
public static long getTimeout(MessagingService.Verb verb)
{
switch (verb)
{
case READ:
return getReadRpcTimeout();
case RANGE_SLICE:
return getRangeRpcTimeout();
case TRUNCATE:
return getTruncateRpcTimeout();
case READ_REPAIR:
case MUTATION:
case PAXOS_COMMIT:
case PAXOS_PREPARE:
case PAXOS_PROPOSE:
return getWriteRpcTimeout();
case COUNTER_MUTATION:
return getCounterWriteRpcTimeout();
default:
return getRpcTimeout();
}
}
/**
* @return the minimum configured {read, write, range, truncate, misc} timeout
*/
public static long getMinRpcTimeout()
{
return Longs.min(getRpcTimeout(),
getReadRpcTimeout(),
getRangeRpcTimeout(),
getWriteRpcTimeout(),
getCounterWriteRpcTimeout(),
getTruncateRpcTimeout());
}
public static double getPhiConvictThreshold()
{
return conf.phi_convict_threshold;
}
public static void setPhiConvictThreshold(double phiConvictThreshold)
{
conf.phi_convict_threshold = phiConvictThreshold;
}
public static int getConcurrentReaders()
{
return conf.concurrent_reads;
}
public static int getConcurrentWriters()
{
return conf.concurrent_writes;
}
public static int getConcurrentCounterWriters()
{
return conf.concurrent_counter_writes;
}
public static int getFlushWriters()
{
return conf.memtable_flush_writers;
}
public static int getConcurrentCompactors()
{
return conf.concurrent_compactors;
}
public static int getCompactionThroughputMbPerSec()
{
return conf.compaction_throughput_mb_per_sec;
}
public static void setCompactionThroughputMbPerSec(int value)
{
conf.compaction_throughput_mb_per_sec = value;
}
public static boolean getDisableSTCSInL0()
{
return Boolean.getBoolean("cassandra.disable_stcs_in_l0");
}
public static int getStreamThroughputOutboundMegabitsPerSec()
{
return conf.stream_throughput_outbound_megabits_per_sec;
}
public static void setStreamThroughputOutboundMegabitsPerSec(int value)
{
conf.stream_throughput_outbound_megabits_per_sec = value;
}
public static int getInterDCStreamThroughputOutboundMegabitsPerSec()
{
return conf.inter_dc_stream_throughput_outbound_megabits_per_sec;
}
public static void setInterDCStreamThroughputOutboundMegabitsPerSec(int value)
{
conf.inter_dc_stream_throughput_outbound_megabits_per_sec = value;
}
public static String[] getAllDataFileLocations()
{
return conf.data_file_directories;
}
public static String getCommitLogLocation()
{
return conf.commitlog_directory;
}
public static int getTombstoneWarnThreshold()
{
return conf.tombstone_warn_threshold;
}
public static void setTombstoneWarnThreshold(int threshold)
{
conf.tombstone_warn_threshold = threshold;
}
public static int getTombstoneFailureThreshold()
{
return conf.tombstone_failure_threshold;
}
public static void setTombstoneFailureThreshold(int threshold)
{
conf.tombstone_failure_threshold = threshold;
}
/**
* size of commitlog segments to allocate
*/
public static int getCommitLogSegmentSize()
{
return conf.commitlog_segment_size_in_mb * 1024 * 1024;
}
public static String getSavedCachesLocation()
{
return conf.saved_caches_directory;
}
public static Set<InetAddress> getSeeds()
{
return ImmutableSet.<InetAddress>builder().addAll(seedProvider.getSeeds()).build();
}
public static InetAddress getListenAddress()
{
return listenAddress;
}
public static InetAddress getBroadcastAddress()
{
return broadcastAddress;
}
public static IInternodeAuthenticator getInternodeAuthenticator()
{
return internodeAuthenticator;
}
public static void setBroadcastAddress(InetAddress broadcastAdd)
{
broadcastAddress = broadcastAdd;
}
public static boolean startRpc()
{
return conf.start_rpc;
}
public static InetAddress getRpcAddress()
{
return rpcAddress;
}
public static void setBroadcastRpcAddress(InetAddress broadcastRPCAddr)
{
broadcastRpcAddress = broadcastRPCAddr;
}
public static InetAddress getBroadcastRpcAddress()
{
return broadcastRpcAddress;
}
public static String getRpcServerType()
{
return conf.rpc_server_type;
}
public static boolean getRpcKeepAlive()
{
return conf.rpc_keepalive;
}
public static Integer getRpcMinThreads()
{
return conf.rpc_min_threads;
}
public static Integer getRpcMaxThreads()
{
return conf.rpc_max_threads;
}
public static Integer getRpcSendBufferSize()
{
return conf.rpc_send_buff_size_in_bytes;
}
public static Integer getRpcRecvBufferSize()
{
return conf.rpc_recv_buff_size_in_bytes;
}
public static Integer getInternodeSendBufferSize()
{
return conf.internode_send_buff_size_in_bytes;
}
public static Integer getInternodeRecvBufferSize()
{
return conf.internode_recv_buff_size_in_bytes;
}
public static boolean startNativeTransport()
{
return conf.start_native_transport;
}
public static int getNativeTransportPort()
{
return Integer.parseInt(System.getProperty("cassandra.native_transport_port", conf.native_transport_port.toString()));
}
public static Integer getNativeTransportMaxThreads()
{
return conf.native_transport_max_threads;
}
public static int getNativeTransportMaxFrameSize()
{
return conf.native_transport_max_frame_size_in_mb * 1024 * 1024;
}
public static Long getNativeTransportMaxConcurrentConnections()
{
return conf.native_transport_max_concurrent_connections;
}
public static void setNativeTransportMaxConcurrentConnections(long nativeTransportMaxConcurrentConnections)
{
conf.native_transport_max_concurrent_connections = nativeTransportMaxConcurrentConnections;
}
public static Long getNativeTransportMaxConcurrentConnectionsPerIp() {
return conf.native_transport_max_concurrent_connections_per_ip;
}
public static void setNativeTransportMaxConcurrentConnectionsPerIp(long native_transport_max_concurrent_connections_per_ip)
{
conf.native_transport_max_concurrent_connections_per_ip = native_transport_max_concurrent_connections_per_ip;
}
public static double getCommitLogSyncBatchWindow()
{
return conf.commitlog_sync_batch_window_in_ms;
}
public static int getCommitLogSyncPeriod()
{
return conf.commitlog_sync_period_in_ms;
}
public static int getCommitLogPeriodicQueueSize()
{
return conf.commitlog_periodic_queue_size;
}
public static Config.CommitLogSync getCommitLogSync()
{
return conf.commitlog_sync;
}
public static Config.DiskAccessMode getDiskAccessMode()
{
return conf.disk_access_mode;
}
public static Config.DiskAccessMode getIndexAccessMode()
{
return indexAccessMode;
}
public static void setDiskFailurePolicy(Config.DiskFailurePolicy policy)
{
conf.disk_failure_policy = policy;
}
public static Config.DiskFailurePolicy getDiskFailurePolicy()
{
return conf.disk_failure_policy;
}
public static void setCommitFailurePolicy(Config.CommitFailurePolicy policy)
{
conf.commit_failure_policy = policy;
}
public static Config.CommitFailurePolicy getCommitFailurePolicy()
{
return conf.commit_failure_policy;
}
public static boolean isSnapshotBeforeCompaction()
{
return conf.snapshot_before_compaction;
}
public static boolean isAutoSnapshot() {
return conf.auto_snapshot;
}
@VisibleForTesting
public static void setAutoSnapshot(boolean autoSnapshot) {
conf.auto_snapshot = autoSnapshot;
}
public static boolean isAutoBootstrap()
{
return Boolean.parseBoolean(System.getProperty("cassandra.auto_bootstrap", conf.auto_bootstrap.toString()));
}
public static void setHintedHandoffEnabled(boolean hintedHandoffEnabled)
{
conf.hinted_handoff_enabled_global = hintedHandoffEnabled;
conf.hinted_handoff_enabled_by_dc.clear();
}
public static void setHintedHandoffEnabled(final String dcNames)
{
List<String> dcNameList;
try
{
dcNameList = Config.parseHintedHandoffEnabledDCs(dcNames);
}
catch (IOException e)
{
throw new IllegalArgumentException("Could not read csv of dcs for hinted handoff enable. " + dcNames, e);
}
if (dcNameList.isEmpty())
throw new IllegalArgumentException("Empty list of Dcs for hinted handoff enable");
conf.hinted_handoff_enabled_by_dc.clear();
conf.hinted_handoff_enabled_by_dc.addAll(dcNameList);
}
public static boolean hintedHandoffEnabled()
{
return conf.hinted_handoff_enabled_global;
}
public static Set<String> hintedHandoffEnabledByDC()
{
return Collections.unmodifiableSet(conf.hinted_handoff_enabled_by_dc);
}
public static boolean shouldHintByDC()
{
return !conf.hinted_handoff_enabled_by_dc.isEmpty();
}
public static boolean hintedHandoffEnabled(final String dcName)
{
return conf.hinted_handoff_enabled_by_dc.contains(dcName);
}
public static void setMaxHintWindow(int ms)
{
conf.max_hint_window_in_ms = ms;
}
public static int getMaxHintWindow()
{
return conf.max_hint_window_in_ms;
}
@Deprecated
public static Integer getIndexInterval()
{
return conf.index_interval;
}
public static File getSerializedCachePath(String ksName, String cfName, UUID cfId, CacheService.CacheType cacheType, String version)
{
StringBuilder builder = new StringBuilder();
builder.append(ksName).append('-');
builder.append(cfName).append('-');
if (cfId != null)
builder.append(ByteBufferUtil.bytesToHex(ByteBufferUtil.bytes(cfId))).append('-');
builder.append(cacheType);
builder.append((version == null ? "" : "-" + version + ".db"));
return new File(conf.saved_caches_directory, builder.toString());
}
public static int getDynamicUpdateInterval()
{
return conf.dynamic_snitch_update_interval_in_ms;
}
public static void setDynamicUpdateInterval(Integer dynamicUpdateInterval)
{
conf.dynamic_snitch_update_interval_in_ms = dynamicUpdateInterval;
}
public static int getDynamicResetInterval()
{
return conf.dynamic_snitch_reset_interval_in_ms;
}
public static void setDynamicResetInterval(Integer dynamicResetInterval)
{
conf.dynamic_snitch_reset_interval_in_ms = dynamicResetInterval;
}
public static double getDynamicBadnessThreshold()
{
return conf.dynamic_snitch_badness_threshold;
}
public static void setDynamicBadnessThreshold(Double dynamicBadnessThreshold)
{
conf.dynamic_snitch_badness_threshold = dynamicBadnessThreshold;
}
public static ServerEncryptionOptions getServerEncryptionOptions()
{
return conf.server_encryption_options;
}
public static ClientEncryptionOptions getClientEncryptionOptions()
{
return conf.client_encryption_options;
}
public static int getHintedHandoffThrottleInKB()
{
return conf.hinted_handoff_throttle_in_kb;
}
public static int getBatchlogReplayThrottleInKB()
{
return conf.batchlog_replay_throttle_in_kb;
}
public static void setHintedHandoffThrottleInKB(Integer throttleInKB)
{
conf.hinted_handoff_throttle_in_kb = throttleInKB;
}
public static int getMaxHintsThread()
{
return conf.max_hints_delivery_threads;
}
public static boolean isIncrementalBackupsEnabled()
{
return conf.incremental_backups;
}
public static void setIncrementalBackupsEnabled(boolean value)
{
conf.incremental_backups = value;
}
public static int getFileCacheSizeInMB()
{
return conf.file_cache_size_in_mb;
}
public static long getTotalCommitlogSpaceInMB()
{
return conf.commitlog_total_space_in_mb;
}
public static int getSSTablePreempiveOpenIntervalInMB()
{
return conf.sstable_preemptive_open_interval_in_mb;
}
public static boolean getTrickleFsync()
{
return conf.trickle_fsync;
}
public static int getTrickleFsyncIntervalInKb()
{
return conf.trickle_fsync_interval_in_kb;
}
public static long getKeyCacheSizeInMB()
{
return keyCacheSizeInMB;
}
public static long getIndexSummaryCapacityInMB()
{
return indexSummaryCapacityInMB;
}
public static int getKeyCacheSavePeriod()
{
return conf.key_cache_save_period;
}
public static void setKeyCacheSavePeriod(int keyCacheSavePeriod)
{
conf.key_cache_save_period = keyCacheSavePeriod;
}
public static int getKeyCacheKeysToSave()
{
return conf.key_cache_keys_to_save;
}
public static void setKeyCacheKeysToSave(int keyCacheKeysToSave)
{
conf.key_cache_keys_to_save = keyCacheKeysToSave;
}
public static long getRowCacheSizeInMB()
{
return conf.row_cache_size_in_mb;
}
public static int getRowCacheSavePeriod()
{
return conf.row_cache_save_period;
}
public static void setRowCacheSavePeriod(int rowCacheSavePeriod)
{
conf.row_cache_save_period = rowCacheSavePeriod;
}
public static int getRowCacheKeysToSave()
{
return conf.row_cache_keys_to_save;
}
public static long getCounterCacheSizeInMB()
{
return counterCacheSizeInMB;
}
public static int getCounterCacheSavePeriod()
{
return conf.counter_cache_save_period;
}
public static void setCounterCacheSavePeriod(int counterCacheSavePeriod)
{
conf.counter_cache_save_period = counterCacheSavePeriod;
}
public static int getCounterCacheKeysToSave()
{
return conf.counter_cache_keys_to_save;
}
public static void setCounterCacheKeysToSave(int counterCacheKeysToSave)
{
conf.counter_cache_keys_to_save = counterCacheKeysToSave;
}
public static IAllocator getoffHeapMemoryAllocator()
{
return memoryAllocator;
}
public static void setRowCacheKeysToSave(int rowCacheKeysToSave)
{
conf.row_cache_keys_to_save = rowCacheKeysToSave;
}
public static int getStreamingSocketTimeout()
{
return conf.streaming_socket_timeout_in_ms;
}
public static String getLocalDataCenter()
{
return localDC;
}
public static Comparator<InetAddress> getLocalComparator()
{
return localComparator;
}
public static Config.InternodeCompression internodeCompression()
{
return conf.internode_compression;
}
public static boolean getInterDCTcpNoDelay()
{
return conf.inter_dc_tcp_nodelay;
}
public static MemtablePool getMemtableAllocatorPool()
{
long heapLimit = ((long) conf.memtable_heap_space_in_mb) << 20;
long offHeapLimit = ((long) conf.memtable_offheap_space_in_mb) << 20;
switch (conf.memtable_allocation_type)
{
case unslabbed_heap_buffers:
return new HeapPool(heapLimit, conf.memtable_cleanup_threshold, new ColumnFamilyStore.FlushLargestColumnFamily());
case heap_buffers:
return new SlabPool(heapLimit, 0, conf.memtable_cleanup_threshold, new ColumnFamilyStore.FlushLargestColumnFamily());
case offheap_buffers:
if (!FileUtils.isCleanerAvailable())
{
logger.error("Could not free direct byte buffer: offheap_buffers is not a safe memtable_allocation_type without this ability, please adjust your config. This feature is only guaranteed to work on an Oracle JVM. Refusing to start.");
System.exit(-1);
}
return new SlabPool(heapLimit, offHeapLimit, conf.memtable_cleanup_threshold, new ColumnFamilyStore.FlushLargestColumnFamily());
case offheap_objects:
return new NativePool(heapLimit, offHeapLimit, conf.memtable_cleanup_threshold, new ColumnFamilyStore.FlushLargestColumnFamily());
default:
throw new AssertionError();
}
}
public static int getIndexSummaryResizeIntervalInMinutes()
{
return conf.index_summary_resize_interval_in_minutes;
}
public static boolean hasLargeAddressSpace()
{
// currently we just check if it's a 64bit arch, but any we only really care if the address space is large
String datamodel = System.getProperty("sun.arch.data.model");
if (datamodel != null)
{
switch (datamodel)
{
case "64": return true;
case "32": return false;
}
}
String arch = System.getProperty("os.arch");
return arch.contains("64") || arch.contains("sparcv9");
}
public static String getOtcCoalescingStrategy()
{
return conf.otc_coalescing_strategy;
}
public static int getOtcCoalescingWindow()
{
return conf.otc_coalescing_window_us;
}
}