internal ControlConnection(Cluster cluster,
IEnumerable<IPAddress> clusterEndpoints,
Policies policies,
ProtocolOptions protocolOptions,
PoolingOptions poolingOptions,
SocketOptions socketOptions,
ClientOptions clientOptions,
IAuthProvider authProvider,
IAuthInfoProvider authInfoProvider)
{
_cluster = cluster;
_reconnectionSchedule = _reconnectionPolicy.NewSchedule();
_reconnectionTimer = new Timer(ReconnectionClb, null, Timeout.Infinite, Timeout.Infinite);
var config = new Configuration
(
policies,
protocolOptions,
poolingOptions,
socketOptions,
clientOptions,
authProvider,
authInfoProvider,
new QueryOptions()
);
_session = new Session(cluster, config, "", ControlConnectionProtocolVersion);
}
private void SetCluster()
{
if (Cluster == null)
{
Cluster = Connect();
}
}
private static void waitFor(string node, Cluster cluster, int maxTry, bool waitForDead, bool waitForOut)
{
// In the case where the we've killed the last node in the cluster, if we haven't
// tried doing an actual query, the driver won't realize that last node is dead until'
// keep alive kicks in, but that's a fairly long time. So we cheat and trigger a force'
// the detection by forcing a request.
bool disconnected = false;
if (waitForDead || waitForOut)
disconnected = !cluster.RefreshSchema(null, null);
if (disconnected)
return;
IPAddress address;
try {
address = IPAddress.Parse(node);
} catch (Exception e) {
// That's a problem but that's not *our* problem
return;
}
Metadata metadata = cluster.Metadata;
for (int i = 0; i < maxTry; ++i) {
bool found = false;
foreach (Host host in metadata.AllHosts())
{
if (host.Address.Equals(address))
{
found = true;
if (testHost(host, waitForDead))
return;
}
}
if (waitForDead && !found)
return;
try { Thread.Sleep(1000); } catch (Exception e) {}
}
foreach(Host host in metadata.AllHosts())
{
if (host.Address.Equals(address)) {
if (testHost(host, waitForDead)) {
return;
} else {
// logging it because this give use the timestamp of when this happens
logger.Info(node + " is not " + (waitForDead ? "DOWN" : "UP") + " after " + maxTry + "s");
throw new InvalidOperationException(node + " is not " + (waitForDead ? "DOWN" : "UP") + " after " + maxTry + "s");
}
}
}
if (waitForOut){
return;
} else {
logger.Info(node + " is not part of the cluster after " + maxTry + "s");
throw new InvalidOperationException(node + " is not part of the cluster after " + maxTry + "s");
}
}
/// <summary>
/// Creates the schema that it is going to be used in the samples.
/// It is grouped into a helper to let the other classes to be cleaner.
/// </summary>
public static void CreateSchema(Cluster cluster)
{
//This part is not important for the sample purpose.
//TL;DR
var session = cluster.Connect();
CreateKeyspace(session);
CreateTimeSeriesTable(session);
CreateForumTables(session);
}
public ColumnarDb(string DBName, ISchemaContext ctx, string UserName, string ClusterAddress = DefaultCluster)
{
this.UserName = UserName;
this.DBName = DBName;
this.ctx = ctx;
cluster = Cluster.Builder().AddContactPoint(ClusterAddress).Build();
SetDefaultConfig();
//ISession session = cluster.Connect("demo");
}
public CreateCat(
IConfiguration config,
ILogger <CreateCat> logger,
cass.Cluster cluster)
{
_config = config;
_logger = logger;
_cluster = cluster;
}
internal Session(Cluster cluster, Configuration configuration, string keyspace, int binaryProtocolVersion)
{
Cluster = cluster;
Configuration = configuration;
Keyspace = keyspace;
BinaryProtocolVersion = binaryProtocolVersion;
Guid = Guid.NewGuid();
UserDefinedTypes = new UdtMappingDefinitions(this);
_connectionPool = new ConcurrentDictionary<IPAddress, HostConnectionPool>();
}
public void Connect(String node)
{
_cluster = Cluster.Builder()
.AddContactPoint(node).Build();
Metadata metadata = _cluster.Metadata;
Console.WriteLine("Connected to cluster: "
+ metadata.ClusterName.ToString());
_session = _cluster.Connect();
}
private ISession GetOrCreateSession(Cluster cluster, string keySpace)
{
ISession session;
if (!_sessions.TryGetValue(cluster, out session))
{
session = cluster.Connect(keySpace);
_sessions.TryAdd(cluster, session);
}
return session;
}
public void init()
{
try
{
cluster = CassHosts.getCluster();
Console.WriteLine("GOT CLUSTER");
}
catch (Exception e)
{
Console.WriteLine("Exception Occurred Getting Cluster INIT " + e);
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
try
{
_cluster = Cluster.Builder().AddContactPoint("127.0.0.1").Build();
_session = _cluster.Connect("demo");
EscribirEnConsola("Conexión establecida correctamente");
}
catch(Exception ex)
{
EscribirEnConsola("Error al conectar con Cassandra. \n" + ex.Message);
}
}
public static void waitForDownWithWait(String node, Cluster cluster, int waitTime)
{
waitFor(node, cluster, 20, true, false);
// FIXME: Once stop() works, remove this line
try
{
Thread.Sleep(waitTime * 1000);
}
catch (InvalidQueryException e)
{
Debug.Write(e.StackTrace);
}
}
internal ControlConnection(Cluster cluster,
IEnumerable<IPAddress> clusterEndpoints,
Policies policies,
ProtocolOptions protocolOptions,
PoolingOptions poolingOptions,
SocketOptions socketOptions,
ClientOptions clientOptions,
IAuthInfoProvider authProvider)
{
this._cluster = cluster;
this._reconnectionSchedule = _reconnectionPolicy.NewSchedule();
this._reconnectionTimer = new Timer(ReconnectionClb, null, Timeout.Infinite, Timeout.Infinite);
_session = new Session(cluster, policies, protocolOptions, poolingOptions, socketOptions,
clientOptions, authProvider, "", false);
}
internal ControlConnection(Cluster cluster,
IEnumerable<IPAddress> clusterEndpoints,
Policies policies,
ProtocolOptions protocolOptions,
PoolingOptions poolingOptions,
SocketOptions socketOptions,
ClientOptions clientOptions,
IAuthInfoProvider authProvider,
bool metricsEnabled)
{
this._cluster = cluster;
this._reconnectionTimer = new Timer(ReconnectionClb, null, Timeout.Infinite, Timeout.Infinite);
_session = new Session(cluster, clusterEndpoints, policies, protocolOptions, poolingOptions, socketOptions,
clientOptions, authProvider, metricsEnabled, "", _cluster._hosts);
}
public CassandraClient(IPortalFrontendSettings settings)
{
string[] nodeAddresses = settings.CassandraNodes;
var privateAddresses = settings.CassandraPrivateAddresses;
if (nodeAddresses.Length == 0)
{
throw new ArgumentException("settings");
}
// Credetials
Builder clusterBuilder = Cluster.Builder();
if (!string.IsNullOrEmpty(settings.CassandraUsername) && !string.IsNullOrEmpty(settings.CassandraPassword))
{
clusterBuilder = clusterBuilder.WithCredentials(settings.CassandraUsername, settings.CassandraPassword);
}
// Hosts
clusterBuilder.AddContactPoints(nodeAddresses);
if (privateAddresses.Length > 0)
{
if (privateAddresses.Length != nodeAddresses.Length)
{
throw new ArgumentException("settings");
}
const int cqlPort = 9042;
var addressMap = new Dictionary<IPEndPoint, IPEndPoint>(nodeAddresses.Length);
for (int i = 0; i < nodeAddresses.Length; i++)
{
// Create address map for cassandra nodes behind azure firewall
IPHostEntry host = Dns.GetHostEntry(nodeAddresses[i]);
var privateAddress = IPAddress.Parse(privateAddresses[i]);
var publicAddress = host.AddressList.First();
addressMap.Add(new IPEndPoint(privateAddress, cqlPort), new IPEndPoint(publicAddress, cqlPort));
}
clusterBuilder.WithAddressTranslator(new CassandraAddressTranslator(addressMap));
}
// Set heartbeat interval
clusterBuilder.SocketOptions.SetIdleTimeoutMillis((int)TimeSpan.FromMinutes(3).TotalMilliseconds);
_cluster = clusterBuilder.Build();
}
void InitializeTenant(string tenant)
{
if (string.IsNullOrEmpty(tenant))
{
throw new ArgumentNullException(nameof(tenant));
}
string tenantPrefix = hasTenantsDefined ? $"{tenant}_" : string.Empty;
var keyspace = $"{tenantPrefix}{settings.Keyspace}";
if (keyspace.Length > 48)
{
throw new ArgumentException($"Cassandra keyspace exceeds maximum length of 48. Keyspace: {keyspace}");
}
DataStaxCassandra.Cluster cluster = null;
if (ReferenceEquals(null, settings.Cluster))
{
cluster = DataStaxCassandra.Cluster
.Builder()
.WithReconnectionPolicy(settings.ReconnectionPolicy)
.WithRetryPolicy(settings.RetryPolicy)
.WithConnectionString(settings.ConnectionString)
.Build();
}
else
{
cluster = settings.Cluster;
}
var session = cluster.Connect();
var storageManager = new CassandraEventStoreStorageManager(session, keyspace, settings.EventStoreTableNameStrategy, settings.ReplicationStrategy);
storageManager.CreateStorage();
session.ChangeKeyspace(keyspace);
var serializer = builder.Container.Resolve <ISerializer>();
string bc = (this.settings as EventStore.Config.IEventStoreSettings).BoundedContext;
var eventStore = new CassandraEventStore(settings.BoundedContext, session, settings.EventStoreTableNameStrategy, serializer, settings.WriteConsistencyLevel, settings.ReadConsistencyLevel);
var player = new CassandraEventStorePlayer(session, settings.EventStoreTableNameStrategy, bc, serializer);
tenantStores.Add(tenant, eventStore);
tenantPlayers.Add(tenant, player);
}
public void checkKSMetadata()
{
CCMCluster = CCMBridge.CCMCluster.Create(2, Cluster.Builder());
try
{
Session = CCMCluster.Session;
Cluster = CCMCluster.Cluster;
Session.CreateKeyspaceIfNotExists(Keyspace);
Session.ChangeKeyspace(Keyspace);
string keyspacename = "keyspace" + Guid.NewGuid().ToString("N").ToLower();
bool durableWrites = false;
string strgyClass = "SimpleStrategy";
short rplctnFactor = 1;
Session.Cluster.WaitForSchemaAgreement(
Session.Execute(
string.Format(@"CREATE KEYSPACE {0}
WITH replication = {{ 'class' : '{1}', 'replication_factor' : {2} }}
AND durable_writes={3};"
, keyspacename, strgyClass, rplctnFactor.ToString(), durableWrites.ToString())).QueriedHost
);
Session.ChangeKeyspace(keyspacename);
for (int i = 0; i < 10; i++)
checkPureMetadata("table" + Guid.NewGuid().ToString("N"), keyspacename);
KeyspaceMetadata ksmd = Cluster.Metadata.GetKeyspace(keyspacename);
Assert.True(ksmd.DurableWrites == durableWrites);
Assert.True(ksmd.Replication.Where(opt => opt.Key == "replication_factor").First().Value == rplctnFactor);
Assert.True(ksmd.StrategyClass == strgyClass);
}
finally
{
CCMCluster.Discard();
}
}
public void Initialize(Cluster cluster)
{
this._cluster = cluster;
_childPolicy.Initialize(cluster);
}
public void Initialize(Cluster cluster)
{
this._cluster = cluster;
this._index = StaticRandom.Instance.Next(cluster.Metadata.AllHosts().Count);
}
public void checkMetadata(string TableName = null, string KeyspaceName = null, TableOptions tableOptions = null)
{
CCMCluster = CCMBridge.CCMCluster.Create(2, Cluster.Builder());
try
{
Session = CCMCluster.Session;
Cluster = CCMCluster.Cluster;
Session.CreateKeyspaceIfNotExists(Keyspace);
Session.ChangeKeyspace(Keyspace);
checkPureMetadata(TableName, KeyspaceName, tableOptions);
}
finally
{
CCMCluster.Discard();
}
}
public void CreateKeyspaceWithPropertiesTest(string strategy_class)
{
CCMCluster = CCMBridge.CCMCluster.Create(2, Cluster.Builder());
try
{
Session = CCMCluster.Session;
Cluster = CCMCluster.Cluster;
Randomm rndm = new Randomm(DateTime.Now.Millisecond);
bool durable_writes = rndm.NextBoolean();
int? replication_factor = null;
int? data_centers_count = null;
Dictionary<string, int> datacenters_replication_factors = null;
if (strategy_class == ReplicationStrategies.SimpleStrategy)
{
replication_factor = rndm.Next(1, 21);
Session.CreateKeyspaceIfNotExists(Keyspace,ReplicationStrategies.CreateSimpleStrategyReplicationProperty((int)replication_factor), durable_writes);
Session.ChangeKeyspace(Keyspace);
}
else
if (strategy_class == ReplicationStrategies.NetworkTopologyStrategy)
{
data_centers_count = rndm.Next(1, 11);
datacenters_replication_factors = new Dictionary<string, int>((int)data_centers_count);
for (int i = 0; i < data_centers_count; i++)
datacenters_replication_factors.Add("dc" + i.ToString(), rndm.Next(1, 21));
Session.CreateKeyspaceIfNotExists(Keyspace, ReplicationStrategies.CreateNetworkTopologyStrategyReplicationProperty(datacenters_replication_factors), durable_writes);
}
KeyspaceMetadata ksmd = Cluster.Metadata.GetKeyspace(Keyspace);
Assert.Equal(strategy_class, ksmd.StrategyClass);
Assert.Equal(durable_writes, ksmd.DurableWrites);
if (replication_factor != null)
Assert.Equal(replication_factor, ksmd.Replication["replication_factor"]);
if (datacenters_replication_factors != null)
Assert.True(datacenters_replication_factors.SequenceEqual(ksmd.Replication));
}
finally
{
CCMCluster.Discard();
}
}
public void Open()
{
cluster = Cluster.Builder().AddContactPoint("127.0.0.1").Build();
session = cluster.Connect("filewatch");
public void Initialize(Cluster cluster)
{
this._cluster = cluster;
this._index = StaticRandom.Instance.Next(cluster.Metadata.AllHosts().Count);
}
public static void CreateCluster()
{
erroredOut = false;
schemaCreated = false;
cassandraCluster = CCMBridge.Create("test", 1);
try
{
cluster = Cluster.Builder().AddContactPoints(IP_PREFIX + "1").Build();
session = cluster.Connect();
}
catch (NoHostAvailableException e)
{
erroredOut = true;
foreach (var entry in e.Errors)
Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
throw new InvalidOperationException("", e);
}
}
public static void Build(Builder builder)
{
if (Options.Default.USE_COMPRESSION)
{
builder.WithCompression(CompressionType.Snappy);
Console.WriteLine("Using Compression");
}
if (Options.Default.USE_NOBUFFERING)
{
builder.WithoutRowSetBuffering();
Console.WriteLine("No buffering");
}
Cluster = builder.AddContactPoints(Options.Default.IP_PREFIX + "1").Build();
}
public static void CreateCluster()
{
erroredOut = false;
schemaCreated = false;
cassandraCluster = CCMBridge.Create("test", 1);
try
{
var builder = Cluster.Builder().AddContactPoints(Options.Default.IP_PREFIX + "1");
if (Options.Default.USE_COMPRESSION)
{
builder.WithCompression(CompressionType.Snappy);
Console.WriteLine("Using Compression");
}
if (Options.Default.USE_NOBUFFERING)
{
builder.WithoutRowSetBuffering();
Console.WriteLine("No buffering");
}
cluster = builder.Build();
session = cluster.Connect();
}
catch (NoHostAvailableException e)
{
erroredOut = true;
foreach (var entry in e.Errors)
Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
throw new InvalidOperationException("", e);
}
}
private CCMCluster(CCMBridge ccmBridge, Builder builder)
{
int tryNo = 0;
builder.AddContactPoints(Options.Default.IP_PREFIX + "1");
if (Options.Default.USE_COMPRESSION)
{
builder.WithCompression(CompressionType.Snappy);
Console.WriteLine("Using Compression");
}
if (Options.Default.USE_NOBUFFERING)
{
builder.WithoutRowSetBuffering();
Console.WriteLine("No buffering");
}
this.Cluster = builder.Build();
RETRY:
this.CCMBridge = ccmBridge;
try
{
this.Session = Cluster.Connect();
if(tryNo>0)
Cluster.RefreshSchema();
}
catch (NoHostAvailableException e)
{
if (tryNo < 10)
{
Console.WriteLine("CannotConnect to CCM node - give another try");
tryNo++;
Thread.Sleep(1000);
goto RETRY;
}
foreach (var entry in e.Errors)
Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
throw new InvalidOperationException(null, e);
}
}
public void Initialize(Cluster cluster)
{
this._cluster = cluster;
}
private int m_ttl = 2592000; //1 month
#endregion
#region IApplicationPlugin Members
public void Initialize(OpenSimBase openSim)
{
IConfig config = openSim.ConfigSource.Source.Configs["ChatLogModule"];
if (config == null) return;
m_enabled = config.GetBoolean("Enabled", false) && config.GetString("Backend", "") == "Cassandra12Backend";
m_debug = config.GetBoolean("Debug", m_debug);
m_ttl = config.GetInt("TTL", m_ttl);
Q_INS_TTL = Q_INSERT + m_ttl.ToString() + ";";
if (m_enabled)
{
ExtractSeedNodesFromConfig(config);
var clusterb = Cluster.Builder();
foreach (string node in m_seedNodes)
{
if (m_debug) m_log.DebugFormat("[CHATLOG.Cassandra]: Adding seed node {0}", node);
clusterb.AddContactPoint(node);
}
clusterb.WithDefaultKeyspace(KEYSPACE);
m_cluster = clusterb.Build();
m_session = m_cluster.Connect();
ProviderRegistry.Instance.RegisterInterface<IChatMessageLogBackend>(this);
}
}
public void SetFixture()
{
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
var clusterb = Cluster.Builder().AddContactPoint("cassi.cloudapp.net");
clusterb.WithDefaultKeyspace(Keyspace);
if (Cassandra.MSTest.Properties.Settings.Default.Compression)
{
clusterb.WithCompression(CompressionType.Snappy);
Console.WriteLine("Compression: Snappy Compression");
}
else Console.WriteLine("Compression: No Compression");
Cluster = clusterb.Build();
Diagnostics.CassandraTraceSwitch.Level = System.Diagnostics.TraceLevel.Verbose;
Diagnostics.CassandraStackTraceIncluded = true;
Diagnostics.CassandraPerformanceCountersEnabled = true;
Session = Cluster.ConnectAndCreateDefaultKeyspaceIfNotExists(ReplicationStrategies.CreateSimpleStrategyReplicationProperty(2), true);
}
public override void Open()
{
_connectionState = System.Data.ConnectionState.Connecting;
lock (_clusters)
{
if (!_clusters.ContainsKey(_connectionStringBuilder.ClusterName))
{
_managedCluster = _connectionStringBuilder.MakeClusterBuilder().Build();
_clusters.Add(_connectionStringBuilder.ClusterName, _managedCluster);
}
else
_managedCluster = _clusters[_connectionStringBuilder.ClusterName];
}
if (string.IsNullOrEmpty(_connectionStringBuilder.DefaultKeyspace))
ManagedConnection = _managedCluster.Connect("");
else
ManagedConnection = _managedCluster.Connect(_connectionStringBuilder.DefaultKeyspace);
_connectionState = System.Data.ConnectionState.Open;
}
/// <summary>
/// Use when you want to override all the default settings. You should use a connection string without the default keyspace and use the SetKeyspace method to specify it.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="self"></param>
/// <param name="cluster">Fully configured Cassandra cluster object.</param>
/// <returns></returns>
public static T SetCluster <T>(this T self, DataStaxCassandra.Cluster cluster) where T : ICassandraEventStoreSettings
{
self.Cluster = cluster;
return(self);
}
private CCMCluster(CCMBridge cassandraCluster, Builder builder)
{
this.CassandraCluster = cassandraCluster;
try
{
this.Cluster = builder.AddContactPoints(IP_PREFIX + "1").Build();
this.Session = Cluster.Connect();
}
catch (NoHostAvailableException e)
{
foreach (var entry in e.Errors)
Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
throw new InvalidOperationException(null, e);
}
}
internal Session(Cluster cluster,
Policies policies,
ProtocolOptions protocolOptions,
PoolingOptions poolingOptions,
SocketOptions socketOptions,
ClientOptions clientOptions,
IAuthInfoProvider authProvider,
string keyspace, bool init)
{
try
{
this._cluster = cluster;
this._protocolOptions = protocolOptions;
this._poolingOptions = poolingOptions;
this._socketOptions = socketOptions;
this._clientOptions = clientOptions;
this._authProvider = authProvider;
this._policies = policies ?? Policies.DefaultPolicies;
this._policies.LoadBalancingPolicy.Initialize(_cluster);
_keyspace = keyspace ?? clientOptions.DefaultKeyspace;
Guid = Guid.NewGuid();
_trashcanCleaner = new Timer(TranscanCleanup, null, Timeout.Infinite, Timeout.Infinite);
if (init)
{
var ci = this._policies.LoadBalancingPolicy.NewQueryPlan(null).GetEnumerator();
if (!ci.MoveNext())
{
var ex = new NoHostAvailableException(new Dictionary<IPAddress, List<Exception>>());
_logger.Error(ex.Message);
throw ex;
}
var triedHosts = new List<IPAddress>();
var innerExceptions = new Dictionary<IPAddress, List<Exception>>();
int streamId;
var con = Connect(ci, triedHosts, innerExceptions, out streamId);
con.FreeStreamId(streamId);
}
}
catch
{
InternalDispose();
throw;
}
}
