protected internal void SizeBuffer(int size)
{
if (size > dataBuffer.Length)
{
dataBuffer = ThreadLocalData.ResizeBuffer(size);
}
}
private void ResizeBuffer(int size)
{
if (size > buffer.Length)
{
buffer = ThreadLocalData.ResizeBuffer(size);
}
}
private void ValidateAlias(Cluster cluster, IPAddress ipAddress, int port)
{
IPEndPoint address = new IPEndPoint(ipAddress, port);
Connection conn = new Connection(address, cluster.connectionTimeout);
try
{
if (cluster.user != null)
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
command.Authenticate(conn, cluster.user, cluster.password);
}
Dictionary <string, string> map = Info.Request(conn, "node", "features");
string nodeName;
if (map.TryGetValue("node", out nodeName))
{
this.name = nodeName;
this.address = address;
this.conn = conn;
SetFeatures(map);
return;
}
else
{
throw new AerospikeException.InvalidNode();
}
}
catch (Exception)
{
conn.Close();
throw;
}
}
/// <summary>
/// Send multiple commands to server and store results.
/// This constructor is used internally.
/// The static request methods should be used instead.
/// </summary>
/// <param name="conn">connection to server node</param>
/// <param name="commands">commands sent to server</param>
public Info(Connection conn, params string[] commands)
{
buffer = ThreadLocalData.GetBuffer();
// First, do quick conservative buffer size estimate.
offset = 8;
foreach (string command in commands)
{
offset += command.Length * 2 + 1;
}
// If conservative estimate may be exceeded, get exact estimate
// to preserve memory and resize buffer.
if (offset > buffer.Length)
{
offset = 8;
foreach (string command in commands)
{
offset += ByteUtil.EstimateSizeUtf8(command) + 1;
}
ResizeBuffer(offset);
}
offset = 8; // Skip size field.
// The command format is: <name1>\n<name2>\n...
foreach (string command in commands)
{
offset += ByteUtil.StringToUtf8(command, buffer, offset);
buffer[offset++] = (byte)'\n';
}
SendCommand(conn);
}
protected internal sealed override void SizeBuffer()
{
if (dataOffset > dataBuffer.Length)
{
dataBuffer = ThreadLocalData.ResizeBuffer(dataOffset);
}
}
// Switch from TLS connection to non-TLS connection.
internal SwitchClear(Cluster cluster, Connection conn, byte[] sessionToken)
{
// Obtain non-TLS addresses.
string command = cluster.useServicesAlternate ? "service-clear-alt" : "service-clear-std";
string result = Info.Request(conn, command);
List <Host> hosts = Host.ParseServiceHosts(result);
Host clearHost;
// Find first valid non-TLS host.
foreach (Host host in hosts)
{
try
{
clearHost = host;
string alternativeHost;
if (cluster.ipMap != null && cluster.ipMap.TryGetValue(clearHost.name, out alternativeHost))
{
clearHost = new Host(alternativeHost, clearHost.port);
}
IPAddress[] addresses = Connection.GetHostAddresses(clearHost.name, cluster.connectionTimeout);
foreach (IPAddress ia in addresses)
{
try
{
clearAddress = ia;
clearSocketAddress = new IPEndPoint(ia, clearHost.port);
clearConn = new Connection(clearSocketAddress, cluster.connectionTimeout, null);
try
{
AdminCommand admin = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
if (!admin.Authenticate(cluster, clearConn, sessionToken))
{
throw new AerospikeException("Authentication failed");
}
return; // Authenticated clear connection.
}
catch (Exception)
{
clearConn.Close();
}
}
catch (Exception)
{
// Try next address.
}
}
}
catch (Exception)
{
// Try next host.
}
}
throw new AerospikeException("Invalid non-TLS address: " + result);
}
/// <summary>
/// Get a socket connection from connection pool to the server node.
/// </summary>
/// <param name="timeoutMillis">connection timeout value in milliseconds if a new connection is created</param>
/// <exception cref="AerospikeException">if a connection could not be provided</exception>
public Connection GetConnection(int timeoutMillis)
{
Connection conn;
while (connectionQueue.TryTake(out conn))
{
if (conn.IsValid())
{
try
{
conn.SetTimeout(timeoutMillis);
return(conn);
}
catch (Exception e)
{
// Set timeout failed. Something is probably wrong with timeout
// value itself, so don't empty queue retrying. Just get out.
CloseConnection(conn);
throw new AerospikeException.Connection(e);
}
}
CloseConnection(conn);
}
if (Interlocked.Increment(ref connectionCount) <= cluster.connectionQueueSize)
{
try
{
conn = cluster.CreateConnection(host.tlsName, address, timeoutMillis);
}
catch (Exception)
{
Interlocked.Decrement(ref connectionCount);
throw;
}
if (cluster.user != null)
{
try
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
command.Authenticate(conn, cluster.user, cluster.password);
}
catch (Exception)
{
// Socket not authenticated. Do not put back into pool.
CloseConnection(conn);
throw;
}
}
return(conn);
}
else
{
Interlocked.Decrement(ref connectionCount);
throw new AerospikeException.Connection(ResultCode.NO_MORE_CONNECTIONS,
"Node " + this + " max connections " + cluster.connectionQueueSize + " would be exceeded.");
}
}
/// <summary>
/// Request current status from server node.
/// </summary>
public void Refresh(Peers peers)
{
if (!active)
{
return;
}
try
{
if (tendConnection.IsClosed())
{
tendConnection = cluster.CreateConnection(host.tlsName, address, cluster.connectionTimeout, null);
if (cluster.user != null)
{
try
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
command.Authenticate(tendConnection, cluster.user, cluster.password);
}
catch (Exception)
{
tendConnection.Close();
throw;
}
}
}
if (peers.usePeers)
{
Dictionary <string, string> infoMap = Info.Request(tendConnection, "node", "peers-generation", "partition-generation");
VerifyNodeName(infoMap);
VerifyPeersGeneration(infoMap, peers);
VerifyPartitionGeneration(infoMap);
}
else
{
string[] commands = cluster.useServicesAlternate ?
new string[] { "node", "partition-generation", "services-alternate" } :
new string[] { "node", "partition-generation", "services" };
Dictionary <string, string> infoMap = Info.Request(tendConnection, commands);
VerifyNodeName(infoMap);
VerifyPartitionGeneration(infoMap);
AddFriends(infoMap, peers);
}
peers.refreshCount++;
failures = 0;
}
catch (Exception e)
{
if (peers.usePeers)
{
peers.genChanged = true;
}
RefreshFailed(e);
}
}
/// <summary>
/// Request current status from server node.
/// </summary>
public void Refresh(Peers peers)
{
if (!active)
{
return;
}
try
{
if (tendConnection.IsClosed())
{
tendConnection = CreateConnection(host.tlsName, address, cluster.connectionTimeout, null);
if (cluster.user != null)
{
if (!EnsureLogin())
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
if (!command.Authenticate(cluster, tendConnection, sessionToken))
{
// Authentication failed. Session token probably expired.
// Must login again to get new session token.
command.Login(cluster, tendConnection, out sessionToken, out sessionExpiration);
}
}
}
}
else
{
if (cluster.user != null)
{
EnsureLogin();
}
}
string[] commands = cluster.rackAware ? INFO_PERIODIC_REB : INFO_PERIODIC;
Dictionary <string, string> infoMap = Info.Request(tendConnection, commands);
VerifyNodeName(infoMap);
VerifyPeersGeneration(infoMap, peers);
VerifyPartitionGeneration(infoMap);
if (cluster.rackAware)
{
VerifyRebalanceGeneration(infoMap);
}
peers.refreshCount++;
failures = 0;
}
catch (Exception e)
{
peers.genChanged = true;
RefreshFailed(e);
}
}
/// <summary>
/// Generate unique server hash value from set name, key type and user defined key.
/// The hash function is RIPEMD-160 (a 160 bit hash).
/// </summary>
/// <param name="setName">optional set name, enter null when set does not exist</param>
/// <param name="key">record identifier, unique within set</param>
/// <returns>unique server hash value</returns>
/// <exception cref="AerospikeException">if digest computation fails</exception>
public static byte[] ComputeDigest(string setName, Value key)
{
byte[] buffer = ThreadLocalData.GetBuffer();
int offset = ByteUtil.StringToUtf8(setName, buffer, 0);
buffer[offset++] = (byte)key.Type;
offset += key.Write(buffer, offset);
return(Hash.ComputeHash(buffer, offset));
}
protected internal sealed override int SizeBuffer()
{
dataBuffer = ThreadLocalData.GetBuffer();
if (dataOffset > dataBuffer.Length)
{
dataBuffer = ThreadLocalData.ResizeBuffer(dataOffset);
}
dataOffset = 0;
return(dataBuffer.Length);
}
private bool EnsureLogin()
{
if (performLogin > 0 || (sessionExpiration.HasValue && DateTime.Compare(DateTime.UtcNow, sessionExpiration.Value) >= 0))
{
AdminCommand admin = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
admin.Login(cluster, tendConnection, out sessionToken, out sessionExpiration);
performLogin = 0;
return(true);
}
return(false);
}
private void ValidateAlias(Cluster cluster, IPAddress ipAddress, Host alias)
{
IPEndPoint address = new IPEndPoint(ipAddress, alias.port);
Connection conn = cluster.CreateConnection(alias.tlsName, address, cluster.connectionTimeout);
try
{
if (cluster.user != null)
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
command.Authenticate(conn, cluster.user, cluster.password);
}
Dictionary <string, string> map;
bool hasClusterName = cluster.HasClusterName;
if (hasClusterName)
{
map = Info.Request(conn, "node", "features", "cluster-name");
}
else
{
map = Info.Request(conn, "node", "features");
}
string nodeName;
if (!map.TryGetValue("node", out nodeName))
{
throw new AerospikeException.InvalidNode();
}
if (hasClusterName)
{
string id;
if (!map.TryGetValue("cluster-name", out id) || !cluster.clusterName.Equals(id))
{
throw new AerospikeException.InvalidNode("Node " + nodeName + ' ' + alias + ' ' + " expected cluster name '" + cluster.clusterName + "' received '" + id + "'");
}
}
this.name = nodeName;
this.primaryHost = alias;
this.primaryAddress = address;
this.conn = conn;
SetFeatures(map);
}
catch (Exception)
{
conn.Close();
throw;
}
}
//-------------------------------------------------------
// Constructor
//-------------------------------------------------------
/// <summary>
/// Send single command to server and store results.
/// This constructor is used internally.
/// The static request methods should be used instead.
/// </summary>
/// <param name="conn">connection to server node</param>
/// <param name="command">command sent to server</param>
public Info(Connection conn, string command)
{
buffer = ThreadLocalData.GetBuffer();
// If conservative estimate may be exceeded, get exact estimate
// to preserve memory and resize buffer.
if ((command.Length * 2 + 9) > buffer.Length)
{
offset = ByteUtil.EstimateSizeUtf8(command) + 9;
ResizeBuffer(offset);
}
offset = 8; // Skip size field.
// The command format is: <name1>\n<name2>\n...
offset += ByteUtil.StringToUtf8(command, buffer, offset);
buffer[offset++] = (byte)'\n';
SendCommand(conn);
}
private int ReadBlocks(Connection conn)
{
int status = 0;
while (status == 0)
{
conn.ReadFully(dataBuffer, 8);
long size = ByteUtil.BytesToLong(dataBuffer, 0);
int receiveSize = ((int)(size & 0xFFFFFFFFFFFFL));
if (receiveSize > 0)
{
if (receiveSize > dataBuffer.Length)
{
dataBuffer = ThreadLocalData.ResizeBuffer(receiveSize);
}
conn.ReadFully(dataBuffer, receiveSize);
status = ParseBlock(receiveSize);
}
}
return(status);
}
private Connection CreateConnection(Pool <Connection> pool)
{
Connection conn = CreateConnection(host.tlsName, address, cluster.connectionTimeout, pool);
if (cluster.user != null)
{
try
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
if (!command.Authenticate(cluster, conn, sessionToken))
{
throw new AerospikeException("Authentication failed");
}
}
catch (Exception)
{
// Socket not authenticated. Do not put back into pool.
CloseConnection(conn);
throw;
}
}
return(conn);
}
/// <summary>
/// Get a socket connection from connection pool to the server node.
/// </summary>
/// <param name="timeoutMillis">connection timeout value in milliseconds if a new connection is created</param>
/// <exception cref="AerospikeException">if a connection could not be provided</exception>
public Connection GetConnection(int timeoutMillis)
{
uint max = (uint)cluster.connPoolsPerNode;
uint initialIndex;
bool backward;
if (max == 1)
{
initialIndex = 0;
backward = false;
}
else
{
uint iter = connectionIter++; // not atomic by design
initialIndex = iter % max;
backward = true;
}
Pool <Connection> pool = connectionPools[initialIndex];
uint queueIndex = initialIndex;
Connection conn;
while (true)
{
if (pool.TryDequeue(out conn))
{
// Found socket.
// Verify that socket is active and receive buffer is empty.
if (cluster.IsConnCurrentTran(conn.LastUsed) && conn.IsValid())
{
try
{
conn.SetTimeout(timeoutMillis);
return(conn);
}
catch (Exception e)
{
// Set timeout failed. Something is probably wrong with timeout
// value itself, so don't empty queue retrying. Just get out.
CloseConnection(conn);
throw new AerospikeException.Connection(e);
}
}
CloseConnection(conn);
}
else if (pool.IncrementTotal() <= pool.Capacity)
{
// Socket not found and queue has available slot.
// Create new connection.
try
{
conn = CreateConnection(host.tlsName, address, timeoutMillis, pool);
}
catch (Exception)
{
pool.DecrementTotal();
throw;
}
if (cluster.user != null)
{
try
{
AdminCommand command = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
if (!command.Authenticate(cluster, conn, sessionToken))
{
SignalLogin();
throw new AerospikeException("Authentication failed");
}
}
catch (Exception)
{
// Socket not authenticated. Do not put back into pool.
CloseConnection(conn);
throw;
}
}
return(conn);
}
else
{
// Socket not found and queue is full. Try another queue.
pool.DecrementTotal();
if (backward)
{
if (queueIndex > 0)
{
queueIndex--;
}
else
{
queueIndex = initialIndex;
if (++queueIndex >= max)
{
break;
}
backward = false;
}
}
else if (++queueIndex >= max)
{
break;
}
pool = connectionPools[queueIndex];
}
}
throw new AerospikeException.Connection(ResultCode.NO_MORE_CONNECTIONS,
"Node " + this + " max connections " + cluster.maxConnsPerNode + " would be exceeded.");
}
public void Execute()
{
Policy policy = GetPolicy();
int remainingMillis = policy.timeout;
DateTime limit = DateTime.UtcNow.AddMilliseconds(remainingMillis);
Node node = null;
Exception exception = null;
int failedNodes = 0;
int failedConns = 0;
int iterations = 0;
dataBuffer = ThreadLocalData.GetBuffer();
// Execute command until successful, timed out or maximum iterations have been reached.
while (true)
{
try
{
node = GetNode();
Connection conn = node.GetConnection(remainingMillis);
try
{
// Set command buffer.
WriteBuffer();
// Reset timeout in send buffer (destined for server) and socket.
ByteUtil.IntToBytes((uint)remainingMillis, dataBuffer, 22);
// Send command.
conn.Write(dataBuffer, dataOffset);
// Parse results.
ParseResult(conn);
// Reflect healthy status.
conn.UpdateLastUsed();
// Put connection back in pool.
node.PutConnection(conn);
// Command has completed successfully. Exit method.
return;
}
catch (AerospikeException ae)
{
if (ae.KeepConnection())
{
// Put connection back in pool.
conn.UpdateLastUsed();
node.PutConnection(conn);
}
else
{
// Close socket to flush out possible garbage. Do not put back in pool.
node.CloseConnection(conn);
}
throw;
}
catch (SocketException ioe)
{
node.CloseConnection(conn);
if (ioe.ErrorCode == (int)SocketError.TimedOut)
{
// Full timeout has been reached. Do not retry.
// Close socket to flush out possible garbage. Do not put back in pool.
throw new AerospikeException.Timeout(node, policy.timeout, ++iterations, failedNodes, failedConns);
}
else
{
// IO errors are considered temporary anomalies. Retry.
// Close socket to flush out possible garbage. Do not put back in pool.
exception = ioe;
}
}
catch (Exception)
{
// All runtime exceptions are considered fatal. Do not retry.
// Close socket to flush out possible garbage. Do not put back in pool.
node.CloseConnection(conn);
throw;
}
}
catch (AerospikeException.InvalidNode ine)
{
// Node is currently inactive. Retry.
exception = ine;
failedNodes++;
}
catch (AerospikeException.Connection ce)
{
// Socket connection error has occurred. Retry.
exception = ce;
failedConns++;
}
if (++iterations > policy.maxRetries)
{
break;
}
// Check for client timeout.
if (policy.timeout > 0)
{
remainingMillis = (int)limit.Subtract(DateTime.UtcNow).TotalMilliseconds - policy.sleepBetweenRetries;
if (remainingMillis <= 0)
{
break;
}
}
if (policy.sleepBetweenRetries > 0)
{
// Sleep before trying again.
Util.Sleep(policy.sleepBetweenRetries);
}
// Reset node reference and try again.
node = null;
}
// Retries have been exhausted. Throw last exception.
throw exception;
}
public Packer()
{
this.buffer = ThreadLocalData.GetBuffer();
}
public AdminCommand()
{
dataBuffer = ThreadLocalData.GetBuffer();
dataOffset = 8;
}
/// <summary>
/// Send default empty command to server and store results.
/// This constructor is used internally.
/// The static request methods should be used instead.
/// </summary>
/// <param name="conn">connection to server node</param>
public Info(Connection conn)
{
buffer = ThreadLocalData.GetBuffer();
offset = 8; // Skip size field.
SendCommand(conn);
}
private void SetAddress(Cluster cluster, Dictionary <string, string> map, string addressCommand, string tlsName)
{
string result = map[addressCommand];
List <Host> hosts = Host.ParseServiceHosts(result);
Host h;
// Search real hosts for seed.
foreach (Host host in hosts)
{
h = host;
string alt;
if (cluster.ipMap != null && cluster.ipMap.TryGetValue(h.name, out alt))
{
h = new Host(alt, h.port);
}
if (h.Equals(this.primaryHost))
{
// Found seed which is not a load balancer.
return;
}
}
// Seed not found, so seed is probably a load balancer.
// Find first valid real host.
foreach (Host host in hosts)
{
try
{
h = host;
string alt;
if (cluster.ipMap != null && cluster.ipMap.TryGetValue(h.name, out alt))
{
h = new Host(alt, h.port);
}
IPAddress[] addresses = Connection.GetHostAddresses(h.name, cluster.connectionTimeout);
foreach (IPAddress address in addresses)
{
try
{
IPEndPoint socketAddress = new IPEndPoint(address, h.port);
Connection conn = (cluster.tlsPolicy != null) ?
new TlsConnection(cluster.tlsPolicy, tlsName, socketAddress, cluster.connectionTimeout, cluster.maxSocketIdleMillis, null) :
new Connection(socketAddress, cluster.connectionTimeout, cluster.maxSocketIdleMillis, null);
try
{
if (cluster.user != null)
{
AdminCommand admin = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
if (!admin.Authenticate(cluster, conn, this.sessionToken))
{
throw new AerospikeException("Authentication failed");
}
}
// Authenticated connection. Set real host.
SetAliases(addresses, tlsName, h.port);
this.primaryHost = new Host(address.ToString(), tlsName, h.port);
this.primaryAddress = socketAddress;
this.primaryConn.Close();
this.primaryConn = conn;
return;
}
catch (Exception)
{
conn.Close();
}
}
catch (Exception)
{
// Try next address.
}
}
}
catch (Exception)
{
// Try next host.
}
}
// Failed to find a valid host.
throw new AerospikeException("Invalid address: " + result);
}
private void ValidateAddress(Cluster cluster, IPAddress address, string tlsName, int port, bool detectLoadBalancer)
{
IPEndPoint socketAddress = new IPEndPoint(address, port);
Connection conn = (cluster.tlsPolicy != null) ?
new TlsConnection(cluster.tlsPolicy, tlsName, socketAddress, cluster.connectionTimeout, null) :
new Connection(socketAddress, cluster.connectionTimeout, null);
try
{
if (cluster.user != null)
{
// Login
AdminCommand admin = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
admin.Login(cluster, conn, out sessionToken, out sessionExpiration);
if (cluster.tlsPolicy != null && cluster.tlsPolicy.forLoginOnly)
{
// Switch to using non-TLS socket.
SwitchClear sc = new SwitchClear(cluster, conn, sessionToken);
conn.Close();
address = sc.clearAddress;
socketAddress = sc.clearSocketAddress;
conn = sc.clearConn;
// Disable load balancer detection since non-TLS address has already
// been retrieved via service info command.
detectLoadBalancer = false;
}
}
List <string> commands = new List <string>(5);
commands.Add("node");
commands.Add("partition-generation");
commands.Add("features");
bool hasClusterName = cluster.HasClusterName;
if (hasClusterName)
{
commands.Add("cluster-name");
}
string addressCommand = null;
if (detectLoadBalancer)
{
// Seed may be load balancer with changing address. Determine real address.
addressCommand = (cluster.tlsPolicy != null) ?
cluster.useServicesAlternate ? "service-tls-alt" : "service-tls-std" :
cluster.useServicesAlternate ? "service-clear-alt" : "service-clear-std";
commands.Add(addressCommand);
}
// Issue commands.
Dictionary <string, string> map = Info.Request(conn, commands);
// Node returned results.
this.primaryHost = new Host(address.ToString(), tlsName, port);
this.primaryAddress = socketAddress;
this.primaryConn = conn;
ValidateNode(map);
ValidatePartitionGeneration(map);
SetFeatures(map);
if (hasClusterName)
{
ValidateClusterName(cluster, map);
}
if (addressCommand != null)
{
SetAddress(cluster, map, addressCommand, tlsName);
}
}
catch (Exception)
{
conn.Close();
throw;
}
}
private void SetAddress(Cluster cluster, Dictionary <string, string> map, string addressCommand, string tlsName)
{
string result;
if (!map.TryGetValue(addressCommand, out result) || result == null || result.Length == 0)
{
// Server does not support service level call (service-clear-std, ...).
// Load balancer detection is not possible.
return;
}
List <Host> hosts = Host.ParseServiceHosts(result);
Host h;
// Search real hosts for seed.
foreach (Host host in hosts)
{
h = host;
string alt;
if (cluster.ipMap != null && cluster.ipMap.TryGetValue(h.name, out alt))
{
h = new Host(alt, h.port);
}
if (h.Equals(this.primaryHost))
{
// Found seed which is not a load balancer.
return;
}
}
// Seed not found, so seed is probably a load balancer.
// Find first valid real host.
foreach (Host host in hosts)
{
try
{
h = host;
string alt;
if (cluster.ipMap != null && cluster.ipMap.TryGetValue(h.name, out alt))
{
h = new Host(alt, h.port);
}
IPAddress[] addresses = Connection.GetHostAddresses(h.name, cluster.connectionTimeout);
foreach (IPAddress address in addresses)
{
try
{
IPEndPoint socketAddress = new IPEndPoint(address, h.port);
Connection conn = (cluster.tlsPolicy != null) ?
new TlsConnection(cluster.tlsPolicy, tlsName, socketAddress, cluster.connectionTimeout, null) :
new Connection(socketAddress, cluster.connectionTimeout, null);
try
{
if (cluster.user != null)
{
AdminCommand admin = new AdminCommand(ThreadLocalData.GetBuffer(), 0);
if (!admin.Authenticate(cluster, conn, this.sessionToken))
{
throw new AerospikeException("Authentication failed");
}
}
// Authenticated connection. Set real host.
SetAliases(address, tlsName, h.port);
this.primaryHost = new Host(address.ToString(), tlsName, h.port);
this.primaryAddress = socketAddress;
this.primaryConn.Close();
this.primaryConn = conn;
return;
}
catch (Exception)
{
conn.Close();
}
}
catch (Exception)
{
// Try next address.
}
}
}
catch (Exception)
{
// Try next host.
}
}
// Failed to find a valid address. IP Address is probably internal on the cloud
// because the server access-address is not configured. Log warning and continue
// with original seed.
if (Log.InfoEnabled())
{
Log.Info("Invalid address " + result + ". access-address is probably not configured on server.");
}
}