public CCMCluster(CCMBridge cassandraCluster, Builder builder)
{
int tryNo = 0;
this.Cluster = builder.AddContactPoints(IP_PREFIX + "1").Build();
RETRY:
this.CassandraCluster = cassandraCluster;
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);
}
}
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");
}
}
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);
}
}
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);
}
}
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");
}
}
public CCMCluster(CCMBridge cassandraCluster, Builder builder)
{
int tryNo = 0;
this.Cluster = builder.AddContactPoints(IP_PREFIX + "1").Build();
RETRY:
this.CassandraCluster = cassandraCluster;
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);
}
}
