public static void ScanNodes(Cluster cluster, ScanPolicy policy, string ns, string setName, string[] binNames, ScanCallback callback, Node[] nodes)
{
policy.Validate();
// Detect cluster migrations when performing scan.
ulong taskId = RandomShift.ThreadLocalInstance.NextLong();
ulong clusterKey = policy.failOnClusterChange ? QueryValidate.ValidateBegin(nodes[0], ns) : 0;
bool first = true;
if (policy.concurrentNodes && nodes.Length > 1)
{
Executor executor = new Executor(nodes.Length);
foreach (Node node in nodes)
{
ScanCommand command = new ScanCommand(cluster, node, policy, ns, setName, binNames, callback, taskId, clusterKey, first);
executor.AddCommand(command);
first = false;
}
executor.Execute(policy.maxConcurrentNodes);
}
else
{
foreach (Node node in nodes)
{
ScanCommand command = new ScanCommand(cluster, node, policy, ns, setName, binNames, callback, taskId, clusterKey, first);
command.Execute();
first = false;
}
}
}
protected internal void InitializeThreads()
{
// Detect cluster migrations when performing scan.
ulong clusterKey = policy.failOnClusterChange ? QueryValidate.ValidateBegin(nodes[0], statement.ns) : 0;
bool first = true;
// Initialize threads.
for (int i = 0; i < nodes.Length; i++)
{
MultiCommand command = CreateCommand(clusterKey, first);
threads[i] = new QueryThread(this, nodes[i], command);
first = false;
}
}
public void Execute(Cluster cluster, Policy policy)
{
if (clusterKey != 0)
{
if (!first)
{
QueryValidate.Validate(node, ns, clusterKey);
}
base.Execute(cluster, policy, true);
QueryValidate.Validate(node, ns, clusterKey);
}
else
{
base.Execute(cluster, policy, true);
}
}
public void ExecuteAndValidate()
{
if (clusterKey != 0)
{
if (!first)
{
QueryValidate.Validate(node, ns, clusterKey);
}
base.Execute();
QueryValidate.Validate(node, ns, clusterKey);
}
else
{
base.Execute();
}
}
