public static Session Connect(string keyspace = null)
{
int tryNo = 0;
RETRY:
try
{
Session = Cluster.Connect();
if (keyspace != null)
{
Session.CreateKeyspaceIfNotExists(keyspace);
Session.ChangeKeyspace(keyspace);
}
return(Session);
}
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 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 SetFixture()
{
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
CCMBridge.ReusableCCMCluster.Setup(2);
CCMBridge.ReusableCCMCluster.Build(Cluster.Builder());
Session = CCMBridge.ReusableCCMCluster.Connect("tester");
Session.CreateKeyspaceIfNotExists(KeyspaceName);
Session.ChangeKeyspace(KeyspaceName);
}
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 static Session Connect(string keyspace = null)
{
int tryNo = 0;
RETRY:
try
{
Session = Cluster.Connect();
if (keyspace != null)
{
Session.CreateKeyspaceIfNotExists(keyspace);
Session.ChangeKeyspace(keyspace);
}
return Session;
}
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 SetFixture()
{
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
CCMCluster = CCMBridge.CCMCluster.Create(2, Cluster.Builder());
Session = CCMCluster.Session;
Cluster = CCMCluster.Cluster;
Session.CreateKeyspaceIfNotExists(Keyspace);
Session.ChangeKeyspace(Keyspace);
}
