/// <inheritdoc />
public ICollection <Host> AllHosts()
{
//Do not connect at first
return(_metadata.AllHosts());
}
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");
}
}