protected override bool Run(object parameters)
{
#if DEBUG
Shared.EventLog.Debug("RepThread " + System.Reflection.MethodBase.GetCurrentMethod().Name);
#endif
DatabaseConnection connection = (DatabaseConnection)parameters;
bool tableUpdated = false;
TimeSpan ts = new TimeSpan(0, 2, 0);
if (!_IsRunning && (DateTime.Now - _lastCheckUpdates) >= ts)
{
try
{
_lastCheckUpdates = DateTime.Now;
// are we looking for remote updates to the database
if (connection.RemoteUpdate)
{
AddToLogFile(String.Format("{0} Checking Version", ConnectionName));
API api = new API();
try
{
DatabaseRemoteUpdate remoteUpdate = new DatabaseRemoteUpdate();
try
{
remoteUpdate.OnNewMessage += DatabaseRemoteUpdate_OnNewMessage;
int version = Version;
if (remoteUpdate.CheckForDatabaseUpdates(connection.Name,
connection.ChildDatabase,
connection.RemoteUpdateXML, connection.RemoteUpdateLocation,
ref version, ref tableUpdated))
{
Version = version;
if (api.UpdateCurrentDatabaseVersion(connection, version))
{
string fileName = String.Empty;
if (connection.ReplicateDatabase && connection.ReplicateUpdateTriggers && tableUpdated)
{
if (connection.ReplicationType == ReplicationType.Child)
{
//create replication triggers if needed and new database users
ReplicationPrepareChildDatabase repEng = new ReplicationPrepareChildDatabase();
try
{
if (tableUpdated)
{
AddToLogFile(String.Format("{0} Rebuilding Child Replication Triggers", ConnectionName));
}
if (repEng.PrepareDatabaseForReplication(_databaseConnection.ChildDatabase,
tableUpdated, false, ref fileName, remoteUpdate))
{
AddToLogFile(String.Format("{0} Replication Child Triggers Rebuilt", ConnectionName));
}
}
finally
{
repEng = null;
}
}
else if (connection.ReplicationType == ReplicationType.Master)
{
//create replication triggers if needed and new database users
ReplicationPrepareMasterDatabase repEng = new ReplicationPrepareMasterDatabase();
try
{
if (tableUpdated)
{
AddToLogFile(String.Format("{0} Rebuilding Master Replication Triggers", ConnectionName));
}
if (repEng.PrepareDatabaseForReplication(_databaseConnection.ChildDatabase,
tableUpdated, false, ref fileName, remoteUpdate))
{
AddToLogFile(String.Format("{0} Replication Master Triggers Rebuilt", ConnectionName));
}
}
finally
{
repEng = null;
}
}
}
}
}
}
finally
{
remoteUpdate.OnNewMessage -= DatabaseRemoteUpdate_OnNewMessage;
remoteUpdate = null;
}
}
finally
{
api = null;
}
}
// are we backing up the database
if (connection.BackupDatabase)
{
DateTime compare = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day,
connection.BackupAfterTime.Hour, connection.BackupAfterTime.Minute, 0);
TimeSpan spanLastBackup = DateTime.Now - connection.LastBackupTime;
if (
(
(!connection.BackupAfterTimeEnabled ||
(connection.BackupAfterTimeEnabled && DateTime.Now.Subtract(compare).TotalMinutes >= 0)
) ||
(spanLastBackup.TotalDays >= 1.0)
))
{
AddToLogFile(String.Format("{0} Checking Backup", ConnectionName));
CheckLatestDBBackup();
}
else
{
}
}
}
catch (Exception errUB)
{
Shared.EventLog.Add(errUB);
}
}
int missingRecordCount = 0;
try
{
if (CanReplicate && connection.ReplicationType == ReplicationType.Child)
{
ts = new TimeSpan(0, _runInterval, 0); // xx minute increments
// has it been xx minutes since last run?
if (!_IsRunning && (DateTime.Now - LastRunReplication) >= ts)
{
AddToLogFile(String.Format("Run Replication {0}", ConnectionName));
_IsRunning = true;
//properties
_replicationEngine = new ReplicationEngine(
ConnectionName,
_databaseConnection.ReplicateDatabase,
_databaseConnection.ChildDatabase,
_databaseConnection.MasterDatabase);
try
{
_replicationEngine.Validate = true;
// settings
_replicationEngine.VerifyAllDataInterval = (int)_databaseConnection.VerifyDataInterval;
_replicationEngine.VerifyTableCounts = 20;
#if ERROR_LIMIT_30000
_replicationEngine.ForceRestartErrorCount = 30000;
#else
_replicationEngine.ForceRestartErrorCount = (int)_databaseConnection.VerifyErrorReset;
#endif
_replicationEngine.MaximumDownloadCount = (int)_databaseConnection.MaximumDownloadCount;
_replicationEngine.MaximumUploadCount = (int)_databaseConnection.MaximumUploadCount;
_replicationEngine.TimeOutMinutes = (int)_databaseConnection.TimeOut;
_replicationEngine.RequireUniqueAccess = _databaseConnection.RequireUniqueAccess;
// event hookups
_replicationEngine.OnProgress += new ReplicationPercentEventArgs(rep_OnProgress);
_replicationEngine.OnReplicationTextChanged += new ReplicationProgress(rep_OnReplicationTextChanged);
_replicationEngine.BeginReplication += new ReplicationEventHandler(rep_BeginReplication);
_replicationEngine.EndReplication += new ReplicationEventHandler(rep_EndReplication);
_replicationEngine.OnReplicationError += new ReplicationError(rep_OnReplicationError);
_replicationEngine.OnIDChanged += rep_OnIDChanged;
_replicationEngine.OnCheckCancel += _replicationEngine_OnCheckCancel;
//are we forcing hard confirm between certain hours?
if (!ForceVerifyRecords)
{
ForceVerifyRecords = ForceConfirmBasedOnHoursOrIterations();
}
_replicationError = _replicationEngine.Run(_allowConfirmCounts, ForceVerifyRecords);
missingRecordCount = _replicationEngine.MissingRecordCount;
switch (_replicationError)
{
case ReplicationResult.ThresholdExceeded:
_runInterval = 0;
break;
case ReplicationResult.UniqueAccessDenied:
// we do not reset force hard confirm here as it was set before the run
//_forceHardConfirm = _forceHardConfirm;
_runInterval = (int)_databaseConnection.ReplicateInterval;
break;
}
if (ForceVerifyRecords && (missingRecordCount >= _databaseConnection.VerifyErrorReset))
{
AddToLogFile(String.Format("{0} Force Verify Records Missing Records Exceeded", ConnectionName));
ForceVerifyRecords = true;
_runInterval = 0;
// get list of confirmed tables so we don't scan them next time
//_confirmedTables = _replicationEngine.TablesConfirmedCorrect;
}
else
{
switch (_replicationError)
{
case ReplicationResult.TimeOutExceeded:
//_confirmedTables = _replicationEngine.TablesConfirmedCorrect;
_runInterval = (int)_databaseConnection.ReplicateInterval;
AddToLogFile(String.Format("{0} Time out exceeded, restarting", ConnectionName));
break;
case ReplicationResult.ThresholdExceeded:
//_confirmedTables = _replicationEngine.TablesConfirmedCorrect;
// we do not reset force hard confirm here as it was set before the run
//_forceHardConfirm = _forceHardConfirm;
_runInterval = 0;
break;
case ReplicationResult.UniqueAccessDenied:
//_confirmedTables = _replicationEngine.TablesConfirmedCorrect;
_runInterval = (int)_databaseConnection.ReplicateInterval;
AddToLogFile(String.Format("{0} Unique access for deep scan not allowed, retry next time...", ConnectionName));
break;
case ReplicationResult.Error:
case ReplicationResult.DeepScanInitialised:
//_confirmedTables = _replicationEngine.TablesConfirmedCorrect;
_runInterval = 0;
break;
case ReplicationResult.NotInitialised:
case ReplicationResult.Cancelled:
case ReplicationResult.Completed:
case ReplicationResult.DeepScanCompleted:
ForceVerifyRecords = false;
//_confirmedTables = String.Empty;
_replicationEngine.Statuses.Clear();
_runInterval = (int)_databaseConnection.ReplicateInterval;
break;
}
}
}
finally
{
_replicationEngine.Dispose();
_replicationEngine = null;
}
_IsRunning = false;
LastRunReplication = DateTime.Now;
_replicationCount++;
//log management
Shared.EventLog.ArchiveOldLogFiles();
}
}
TimeSpan t = LastRunReplication.AddMinutes(_runInterval) - DateTime.Now;
SendToTCPClients(String.Format("Sleeping, time until next run {0}", t.ToString().Substring(0, 8)));
}
catch (Exception err)
{
Shared.EventLog.Add(err);
_IsRunning = false;
AddToLogFile(String.Format("{0} {1}", ConnectionName, err.Message));
AddToLogFile(err.StackTrace.ToString());
LastRunReplication = DateTime.Now;
}
finally
{
IndicateNotHanging();
}
return(true);
}
public SchemaValidation(DatabaseConnection connection)
: base(connection, new TimeSpan())
{
}
