/**
* 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.io.InputStream;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.cassandra.auth.AllowAllAuthenticator;
import org.apache.cassandra.auth.AllowAllAuthority;
import org.apache.cassandra.auth.IAuthenticator;
import org.apache.cassandra.auth.IAuthority;
import org.apache.cassandra.config.Config.RequestSchedulerId;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.DefsTable;
import org.apache.cassandra.db.migration.Migration;
import org.apache.cassandra.dht.IPartitioner;
import org.apache.cassandra.io.util.FileUtils;
import org.apache.cassandra.io.util.MmappedSegmentedFile;
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.scheduler.IRequestScheduler;
import org.apache.cassandra.scheduler.NoScheduler;
import org.apache.cassandra.thrift.CassandraDaemon;
import org.apache.cassandra.utils.FBUtilities;
import org.yaml.snakeyaml.Loader;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.error.YAMLException;
public class DatabaseDescriptor
{
private static Logger logger = LoggerFactory.getLogger(DatabaseDescriptor.class);
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 SeedProvider seedProvider;
/* Current index into the above list of directories */
private static int currentIndex = 0;
/* Hashing strategy Random or OPHF */
private static IPartitioner partitioner;
private static Config.DiskAccessMode indexAccessMode;
private static Config conf;
private static IAuthenticator authenticator = new AllowAllAuthenticator();
private static IAuthority authority = new AllowAllAuthority();
private final static String DEFAULT_CONFIGURATION = "cassandra.yaml";
private static IRequestScheduler requestScheduler;
private static RequestSchedulerId requestSchedulerId;
private static RequestSchedulerOptions requestSchedulerOptions;
/**
* Inspect the classpath to find storage configuration file
*/
static URL getStorageConfigURL() throws ConfigurationException
{
String configUrl = System.getProperty("cassandra.config");
if (configUrl == null)
configUrl = DEFAULT_CONFIGURATION;
URL url;
try
{
url = new URL(configUrl);
url.openStream().close(); // catches well-formed but bogus URLs
}
catch (Exception e)
{
ClassLoader loader = DatabaseDescriptor.class.getClassLoader();
url = loader.getResource(configUrl);
if (url == null)
throw new ConfigurationException("Cannot locate " + configUrl);
}
return url;
}
static
{
try
{
URL url = getStorageConfigURL();
logger.info("Loading settings from " + url);
InputStream input = null;
try
{
input = url.openStream();
}
catch (IOException e)
{
// getStorageConfigURL should have ruled this out
throw new AssertionError(e);
}
org.yaml.snakeyaml.constructor.Constructor constructor = new org.yaml.snakeyaml.constructor.Constructor(Config.class);
TypeDescription seedDesc = new TypeDescription(SeedProviderDef.class);
seedDesc.putMapPropertyType("parameters", String.class, String.class);
constructor.addTypeDescription(seedDesc);
Yaml yaml = new Yaml(new Loader(constructor));
conf = (Config)yaml.load(input);
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);
}
/* evaluate the DiskAccessMode Config directive, which also affects indexAccessMode selection */
if (conf.disk_access_mode == Config.DiskAccessMode.auto)
{
conf.disk_access_mode = System.getProperty("os.arch").contains("64") ? Config.DiskAccessMode.mmap : Config.DiskAccessMode.standard;
indexAccessMode = conf.disk_access_mode;
logger.info("DiskAccessMode 'auto' determined to be " + conf.disk_access_mode + ", indexAccessMode is " + 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 " + conf.disk_access_mode + ", indexAccessMode is " + indexAccessMode );
}
else
{
indexAccessMode = conf.disk_access_mode;
logger.info("DiskAccessMode is " + conf.disk_access_mode + ", indexAccessMode is " + indexAccessMode );
}
// We could enable cleaner for index only mmap but it probably doesn't matter much
if (conf.disk_access_mode == Config.DiskAccessMode.mmap)
MmappedSegmentedFile.initCleaner();
/* Authentication and authorization backend, implementing IAuthenticator and IAuthority */
if (conf.authenticator != null)
authenticator = FBUtilities.<IAuthenticator>construct(conf.authenticator, "authenticator");
if (conf.authority != null)
authority = FBUtilities.<IAuthority>construct(conf.authority, "authority");
authenticator.validateConfiguration();
authority.validateConfiguration();
/* Hashing strategy */
if (conf.partitioner == null)
{
throw new ConfigurationException("Missing directive: partitioner");
}
try
{
partitioner = FBUtilities.newPartitioner(conf.partitioner);
}
catch (Exception e)
{
throw new ConfigurationException("Invalid partitioner class " + conf.partitioner);
}
/* 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_replicates != null && conf.concurrent_replicates < 2)
{
throw new ConfigurationException("concurrent_replicates must be at least 2");
}
if (conf.memtable_total_space_in_mb == null)
conf.memtable_total_space_in_mb = (int) (Runtime.getRuntime().maxMemory() / (3 * 1048576));
if (conf.memtable_total_space_in_mb <= 0)
throw new ConfigurationException("memtable_total_space_in_mb must be positive");
logger.info("Global memtable threshold is enabled at {}MB", conf.memtable_total_space_in_mb);
/* Memtable flush writer threads */
if (conf.memtable_flush_writers != null && conf.memtable_flush_writers < 1)
{
throw new ConfigurationException("memtable_flush_writers must be at least 1");
}
else if (conf.memtable_flush_writers == null)
{
conf.memtable_flush_writers = conf.data_file_directories.length;
}
/* Local IP or hostname to bind services to */
if (conf.listen_address != null)
{
try
{
listenAddress = InetAddress.getByName(conf.listen_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown listen_address '" + conf.listen_address + "'");
}
}
/* Gossip Address to broadcast */
if (conf.broadcast_address != null)
{
if (conf.broadcast_address.equals("0.0.0.0"))
{
throw new ConfigurationException("broadcast_address cannot be 0.0.0.0!");
}
try
{
broadcastAddress = InetAddress.getByName(conf.broadcast_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown broadcast_address '" + conf.broadcast_address + "'");
}
}
/* Local IP or hostname to bind RPC server to */
if (conf.rpc_address != null)
{
try
{
rpcAddress = InetAddress.getByName(conf.rpc_address);
}
catch (UnknownHostException e)
{
throw new ConfigurationException("Unknown host in rpc_address " + conf.rpc_address);
}
}
else
{
rpcAddress = FBUtilities.getLocalAddress();
}
if (conf.thrift_framed_transport_size_in_mb <= 0)
throw new ConfigurationException("thrift_framed_transport_size_in_mb must be positive");
if (conf.thrift_framed_transport_size_in_mb > 0 && conf.thrift_max_message_length_in_mb < conf.thrift_framed_transport_size_in_mb)
{
throw new ConfigurationException("thrift_max_message_length_in_mb must be greater than thrift_framed_transport_size_in_mb when using TFramedTransport");
}
/* end point snitch */
if (conf.endpoint_snitch == null)
{
throw new ConfigurationException("Missing endpoint_snitch directive");
}
snitch = createEndpointSnitch(conf.endpoint_snitch);
EndpointSnitchInfo.create();
/* 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 (logger.isDebugEnabled() && conf.auto_bootstrap != null)
{
logger.debug("setting auto_bootstrap to " + conf.auto_bootstrap);
}
if (conf.in_memory_compaction_limit_in_mb != null && conf.in_memory_compaction_limit_in_mb <= 0)
{
throw new ConfigurationException("in_memory_compaction_limit_in_mb must be a positive integer");
}
if (conf.concurrent_compactors == null)
conf.concurrent_compactors = Runtime.getRuntime().availableProcessors();
if (conf.concurrent_compactors <= 0)
throw new ConfigurationException("concurrent_compactors should be strictly greater than 0");
if (conf.compaction_throughput_mb_per_sec == null)
conf.compaction_throughput_mb_per_sec = 16;
if (conf.stream_throughput_outbound_megabits_per_sec == null)
conf.stream_throughput_outbound_megabits_per_sec = 400;
if (!CassandraDaemon.rpc_server_types.contains(conf.rpc_server_type.toLowerCase()))
throw new ConfigurationException("Unknown rpc_server_type: " + conf.rpc_server_type);
if (conf.rpc_min_threads == null)
conf.rpc_min_threads = conf.rpc_server_type.toLowerCase().equals("hsha")
? Runtime.getRuntime().availableProcessors() * 4
: 16;
if (conf.rpc_max_threads == null)
conf.rpc_max_threads = conf.rpc_server_type.toLowerCase().equals("hsha")
? Runtime.getRuntime().availableProcessors() * 4
: Integer.MAX_VALUE;
/* data file and commit log directories. they get created later, when they're needed. */
if (conf.commitlog_directory != null && conf.data_file_directories != null && conf.saved_caches_directory != null)
{
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");
}
else
{
if (conf.commitlog_directory == null)
throw new ConfigurationException("commitlog_directory missing");
if (conf.data_file_directories == null)
throw new ConfigurationException("data_file_directories missing; at least one data directory must be specified");
if (conf.saved_caches_directory == null)
throw new ConfigurationException("saved_caches_directory missing");
}
if (conf.initial_token != null)
partitioner.getTokenFactory().validate(conf.initial_token);
// Hardcoded system tables
KSMetaData systemMeta = KSMetaData.systemKeyspace();
Schema.instance.load(CFMetaData.StatusCf);
Schema.instance.load(CFMetaData.HintsCf);
Schema.instance.load(CFMetaData.MigrationsCf);
Schema.instance.load(CFMetaData.SchemaCf);
Schema.instance.load(CFMetaData.IndexCf);
Schema.instance.load(CFMetaData.NodeIdCf);
Schema.instance.load(CFMetaData.VersionCf);
Schema.instance.addSystemTable(systemMeta);
/* 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.");
}
catch (ConfigurationException 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);
}
catch (YAMLException e)
{
logger.error("Fatal configuration error error", e);
System.err.println(e.getMessage() + "\nInvalid yaml; unable to start server. See log for stacktrace.");
System.exit(1);
}
}
private static IEndpointSnitch createEndpointSnitch(String endpointSnitchClassName) throws ConfigurationException
{
IEndpointSnitch snitch = FBUtilities.construct(endpointSnitchClassName, "snitch");
return conf.dynamic_snitch ? new DynamicEndpointSnitch(snitch) : snitch;
}
/** load keyspace (table) definitions, but do not initialize the table instances. */
public static void loadSchemas() throws IOException
{
// we can load tables from local storage if a version is set in the system table and that acutally maps to
// real data in the definitions table. If we do end up loading from xml, store the defintions so that we
// don't load from xml anymore.
UUID uuid = Migration.getLastMigrationId();
if (uuid == null)
{
logger.info("Couldn't detect any schema definitions in local storage.");
// peek around the data directories to see if anything is there.
boolean hasExistingTables = false;
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();
}
}).length;
if (dirCount > 0)
hasExistingTables = true;
}
if (hasExistingTables)
{
break;
}
}
if (hasExistingTables)
logger.info("Found table data in data directories. Consider using the CLI to define your schema.");
else
logger.info("To create keyspaces and column families, see 'help create keyspace' in the CLI, or set up a schema using the thrift system_* calls.");
}
else
{
logger.info("Loading schema version " + uuid.toString());
Collection<KSMetaData> tableDefs = DefsTable.loadFromStorage(uuid);
// happens when someone manually deletes all tables and restarts.
if (tableDefs.size() == 0)
{
logger.warn("No schema definitions were found in local storage.");
// set version so that migrations leading up to emptiness aren't replayed.
Schema.instance.setVersion(uuid);
}
else // if non-system tables where found, trying to load them
{
Schema.instance.load(tableDefs, uuid);
}
}
Schema.instance.fixCFMaxId();
}
public static IAuthenticator getAuthenticator()
{
return authenticator;
}
public static IAuthority getAuthority()
{
return authority;
}
public static int getThriftMaxMessageLength()
{
return conf.thrift_max_message_length_in_mb * 1024 * 1024;
}
public static int getThriftFramedTransportSize()
{
return conf.thrift_framed_transport_size_in_mb * 1024 * 1024;
}
/**
* Creates all storage-related directories.
* @throws IOException when a disk problem is encountered.
*/
public static void createAllDirectories() throws IOException
{
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 ex) {
logger.error("Fatal error: " + ex.getMessage());
System.err.println("Bad configuration; unable to start server");
System.exit(1);
}
}
public static IPartitioner getPartitioner()
{
return partitioner;
}
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 String getJobTrackerAddress()
{
return conf.job_tracker_host;
}
public static int getColumnIndexSize()
{
return conf.column_index_size_in_kb * 1024;
}
public static String getInitialToken()
{
return System.getProperty("cassandra.initial_token", conf.initial_token);
}
public static String getReplaceToken()
{
return System.getProperty("cassandra.replace_token", null);
}
public static String getClusterName()
{
return conf.cluster_name;
}
public static String getJobJarLocation()
{
return conf.job_jar_file_location;
}
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 long getRpcTimeout()
{
return conf.rpc_timeout_in_ms;
}
public static int getPhiConvictThreshold()
{
return conf.phi_convict_threshold;
}
public static int getConcurrentReaders()
{
return conf.concurrent_reads;
}
public static int getConcurrentWriters()
{
return conf.concurrent_writes;
}
public static int getConcurrentReplicators()
{
return conf.concurrent_replicates;
}
public static int getFlushWriters()
{
return conf.memtable_flush_writers;
}
public static int getInMemoryCompactionLimit()
{
return conf.in_memory_compaction_limit_in_mb * 1024 * 1024;
}
public static void setInMemoryCompactionLimit(int sizeInMB)
{
conf.in_memory_compaction_limit_in_mb = sizeInMB;
}
public static int getConcurrentCompactors()
{
return conf.concurrent_compactors;
}
public static boolean isMultithreadedCompaction()
{
return conf.multithreaded_compaction;
}
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 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 String[] getAllDataFileLocations()
{
return conf.data_file_directories;
}
/**
* Get a list of data directories for a given table
*
* @param table name of the table.
*
* @return an array of path to the data directories.
*/
public static String[] getAllDataFileLocationsForTable(String table)
{
String[] tableLocations = new String[conf.data_file_directories.length];
for (int i = 0; i < conf.data_file_directories.length; i++)
{
tableLocations[i] = conf.data_file_directories[i] + File.separator + table;
}
return tableLocations;
}
public synchronized static String getNextAvailableDataLocation()
{
String dataFileDirectory = conf.data_file_directories[currentIndex];
currentIndex = (currentIndex + 1) % conf.data_file_directories.length;
return dataFileDirectory;
}
public static String getCommitLogLocation()
{
return conf.commitlog_directory;
}
public static String getSavedCachesLocation()
{
return conf.saved_caches_directory;
}
public static Set<InetAddress> getSeeds()
{
return Collections.unmodifiableSet(new HashSet(seedProvider.getSeeds()));
}
/*
* Loop through all the disks to see which disk has the max free space
* return the disk with max free space for compactions. If the size of the expected
* compacted file is greater than the max disk space available return null, we cannot
* do compaction in this case.
*/
public static String getDataFileLocationForTable(String table, long expectedCompactedFileSize)
{
long maxFreeDisk = 0;
int maxDiskIndex = 0;
String dataFileDirectory = null;
String[] dataDirectoryForTable = getAllDataFileLocationsForTable(table);
for ( int i = 0 ; i < dataDirectoryForTable.length ; i++ )
{
File f = new File(dataDirectoryForTable[i]);
if( maxFreeDisk < f.getUsableSpace())
{
maxFreeDisk = f.getUsableSpace();
maxDiskIndex = i;
}
}
logger.debug("expected data files size is {}; largest free partition has {} bytes free",
expectedCompactedFileSize, maxFreeDisk);
// Load factor of 0.9 we do not want to use the entire disk that is too risky.
maxFreeDisk = (long)(0.9 * maxFreeDisk);
if( expectedCompactedFileSize < maxFreeDisk )
{
dataFileDirectory = dataDirectoryForTable[maxDiskIndex];
currentIndex = (maxDiskIndex + 1 )%dataDirectoryForTable.length ;
}
else
{
currentIndex = maxDiskIndex;
}
return dataFileDirectory;
}
public static InetAddress getListenAddress()
{
return listenAddress;
}
public static InetAddress getBroadcastAddress()
{
return broadcastAddress;
}
public static void setBroadcastAddress(InetAddress broadcastAdd)
{
broadcastAddress = broadcastAdd;
}
public static InetAddress getRpcAddress()
{
return rpcAddress;
}
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 double getCommitLogSyncBatchWindow()
{
return conf.commitlog_sync_batch_window_in_ms;
}
public static int getCommitLogSyncPeriod() {
return conf.commitlog_sync_period_in_ms;
}
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 int getIndexedReadBufferSizeInKB()
{
return conf.column_index_size_in_kb;
}
public static int getSlicedReadBufferSizeInKB()
{
return conf.sliced_buffer_size_in_kb;
}
public static boolean isSnapshotBeforeCompaction()
{
return conf.snapshot_before_compaction;
}
public static boolean isAutoBootstrap()
{
return conf.auto_bootstrap;
}
public static boolean hintedHandoffEnabled()
{
return conf.hinted_handoff_enabled;
}
public static int getMaxHintWindow()
{
return conf.max_hint_window_in_ms;
}
public static Integer getIndexInterval()
{
return conf.index_interval;
}
public static File getSerializedCachePath(String ksName, String cfName, ColumnFamilyStore.CacheType cacheType)
{
return new File(conf.saved_caches_directory + File.separator + ksName + "-" + cfName + "-" + cacheType);
}
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 EncryptionOptions getEncryptionOptions()
{
return conf.encryption_options;
}
public static double getFlushLargestMemtablesAt()
{
return conf.flush_largest_memtables_at;
}
public static double getReduceCacheSizesAt()
{
return conf.reduce_cache_sizes_at;
}
public static double getReduceCacheCapacityTo()
{
return conf.reduce_cache_capacity_to;
}
public static int getHintedHandoffThrottleDelay()
{
return conf.hinted_handoff_throttle_delay_in_ms;
}
public static boolean getPreheatKeyCache()
{
return conf.compaction_preheat_key_cache;
}
public static void validateMemtableThroughput(int sizeInMB) throws ConfigurationException
{
if (sizeInMB <= 0)
throw new ConfigurationException("memtable_throughput_in_mb must be greater than 0.");
}
public static void validateMemtableOperations(double operationsInMillions) throws ConfigurationException
{
if (operationsInMillions <= 0)
throw new ConfigurationException("memtable_operations_in_millions must be greater than 0.0.");
if (operationsInMillions > Long.MAX_VALUE / 1024 * 1024)
throw new ConfigurationException("memtable_operations_in_millions must be less than " + Long.MAX_VALUE / 1024 * 1024);
}
public static boolean incrementalBackupsEnabled()
{
return conf.incremental_backups;
}
public static int getFlushQueueSize()
{
return conf.memtable_flush_queue_size;
}
public static int getTotalMemtableSpaceInMB()
{
// should only be called if estimatesRealMemtableSize() is true
assert conf.memtable_total_space_in_mb > 0;
return conf.memtable_total_space_in_mb;
}
public static long getTotalCommitlogSpaceInMB()
{
return conf.commitlog_total_space_in_mb;
}
}