private bool ConnectToPeerServer(bool changeRole = true)
{
if (IsClustered)
{
try
{
DatabaseRPCService rpcService = new DatabaseRPCService(_peerNode.Name);
IConfigurationServer remoteCfgServer = rpcService.GetConfigurationServer(new TimeSpan(0, 1, 30), Common.Communication.SessionTypes.Client, new ConfigurationChannelFormatter());
((OutProcConfigurationClient)remoteCfgServer).AutoReconnect = false;
remoteCfgServer.MarkConfiguraitonSession();
OutProcConfigurationSession session = remoteCfgServer.OpenConfigurationSession(new SSPIClientAuthenticationCredential()) as OutProcConfigurationSession;
session.SetChannelDisconnectedListener(this);
session.AutoReconnect = false;
session.MarkSessionInternal();
_session = session;
if (LoggerManager.Instance.CONDBLogger != null && LoggerManager.Instance.CONDBLogger.IsInfoEnabled)
{
LoggerManager.Instance.CONDBLogger.Info("ConfigurationCluster.Connect", "connected with peer server " + _peerNode.Name);
}
}
catch (Exception e)
{
//if (LoggerManager.Instance.CONDBLogger != null && LoggerManager.Instance.CONDBLogger.IsErrorEnabled)
// LoggerManager.Instance.CONDBLogger.Error("ConfigurationCluster.Connect", e.ToString());
}
}
if (changeRole)
{
DetermineRole();
if (_currentRole == NodeRole.Secondary)
{
if (_configuration != null)
{
ServerNode localNode = _configuration.Servers.GetNode(_localServerIP);
if (_peerNode != null && _peerNode.Priority > localNode.Priority)
{
//Let's take over
TakeOverPrimaryRole();
}
else
{
//Need to replicate state from peer node
ReplicateStateFromPeerServer();
}
}
_status.SetStatusBit(RUNNING, UNINITIIALIZED);
}
}
return(_session != null);
}
public static IConfigurationSession Connect(string[] configServers, int configServerPort, string cluster, out IConfigurationServer remote, IChannelFormatter channelFormatter, IClientAuthenticationCredential clientAuthenticationCredential, bool remoteRouter = false)
{
Exception exception = null;
DatabaseRPCService rpc = null;
remote = null;
IConfigurationSession configurationSession = null;
int csPort = configServerPort;
Boolean found = false;
foreach (String current in configServers)
{
if (found)
{
break;
}
int retries = 3;
while (retries > 0)
{
try
{
if (configurationSession != null)
{
configurationSession.Close();
configurationSession = null;
}
rpc = new DatabaseRPCService(current, csPort);
//if (remote == null)
{
remote = rpc.GetConfigurationServer(new TimeSpan(0, 0, 90), SessionTypes.Client, channelFormatter);
}
if (remoteRouter)
{
remote.MarkDistributorSession();
}
configurationSession = remote.OpenConfigurationSession(clientAuthenticationCredential);
if (configurationSession != null)
{
List <Alachisoft.NosDB.Common.Net.Address> csServers = configurationSession.GetConfServers(cluster);
if (csServers == null || csServers.Count < 1)
{
throw new DatabaseException(Common.ErrorHandling.ErrorCodes.Distributor.CLUSTER_INFO_UNAVAILABLE, new[] { cluster });
}
foreach (Alachisoft.NosDB.Common.Net.Address add in csServers)
{
if (add.ip.Equals(current))
{
found = true;
}
}
if (!found)
{
configurationSession.Close();
configurationSession = null;
foreach (Alachisoft.NosDB.Common.Net.Address cur in csServers)
{
try
{
rpc = new DatabaseRPCService(cur.ip, csPort);
remote = rpc.GetConfigurationServer(new TimeSpan(0, 0, 90), SessionTypes.Client, channelFormatter);
if (remoteRouter)
{
remote.MarkDistributorSession();
}
configurationSession = remote.OpenConfigurationSession(clientAuthenticationCredential);
found = true;
}
catch (Exception ex)
{
exception = ex;
}
}
}
}
if (found)
{
break;
}
}
catch (Alachisoft.NosDB.Common.Exceptions.TimeoutException)
{
if (configurationSession != null)
{
configurationSession.Close();
configurationSession = null;
}
exception = new DistributorException(ErrorCodes.Distributor.CONFIGURATION_SERVER_NOTRESPONDING);
retries--;
if (retries == 0)
{
break;
}
}
catch (Exception e)
{
if (configurationSession != null)
{
configurationSession.Close();
configurationSession = null;
}
exception = e;
retries--;
if (retries == 0)
{
break;
}
}
}
}
if (configurationSession != null)
{
return(configurationSession);
}
else if (exception != null)
{
throw exception;
}
return(null);
}
public void Initialize(DbmClusterConfiguration configurationClusterConfig, string ipAddress, int port, string clusterName, string shardName)
{
try
{
bool isConfigSessionInit = false;
Exception csInitExc = null;
_nodeContext.ShardServer.Initialize(IPAddress.Parse(ipAddress), port);
_nodeContext.ShardServer.RegisterSessionListener(SessionTypes.Client, _clientSessionManager);
_nodeContext.ClusterName = clusterName;
foreach (var configServer in configurationClusterConfig.ConfigServers.Nodes)
{
try
{
if (LoggerManager.Instance.ServerLogger != null && LoggerManager.Instance.ServerLogger.IsInfoEnabled)
{
LoggerManager.Instance.ServerLogger.Info("ShardHost.Initialize()", "going to connect with configurration server " + configServer.Name + ":" + configServer.Port);
}
DatabaseRPCService rpc = new DatabaseRPCService(configServer.Name, configServer.Port);
IConfigurationServer remote = rpc.GetConfigurationServer(new TimeSpan(0, 0, 90), SessionTypes.Management, new ConfigurationChannelFormatter());
remote.MarkDatabaseSesion();
_nodeContext.ConfigurationSession = remote.OpenConfigurationSession(new SSPIClientAuthenticationCredential());
if (string.Compare(clusterName, MiscUtil.LOCAL, true) == 0)
{
((Alachisoft.NosDB.Common.Configuration.Services.Client.OutProcConfigurationSession)_nodeContext.ConfigurationSession).MarkSessionInternal();
((Alachisoft.NosDB.Common.Configuration.Services.Client.OutProcConfigurationSession)_nodeContext.ConfigurationSession).SwithToActiveNode = false;
}
}
catch (Exception e)
{
if (LoggerManager.Instance.ServerLogger != null && LoggerManager.Instance.ServerLogger.IsErrorEnabled)
{
LoggerManager.Instance.ServerLogger.Error("ShardHost.Initialize()", "Failed to connect with " + configServer.Name + ":" + configServer.Port, e);
}
csInitExc = e;
}
if (_nodeContext.ConfigurationSession != null)
{
isConfigSessionInit = true;
break;
}
}
if (isConfigSessionInit)
{
_nodeContext.LocalShardName = shardName;
_clientSessionManager.ShardName = shardName;
LoggerManager.Instance.SetThreadContext(new LoggerContext()
{
ShardName = _nodeContext.LocalShardName != null ? _nodeContext.LocalShardName : "", DatabaseName = ""
});
SecurityManager = new SecurityManager();
SecurityManager.Initialize(this.NodeContext.LocalShardName);
_initialized = true;
}
else
{
if (csInitExc != null)
{
throw csInitExc;
}
}
}
catch (Exception ex)
{
_initialized = false;
if (LoggerManager.Instance.ServerLogger != null && LoggerManager.Instance.ServerLogger.IsErrorEnabled)
{
LoggerManager.Instance.ServerLogger.Error("ShardHost.Initialize()", "Error:", ex);
}
throw;
}
}
