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Easy way to backup a C/S installation ? |
Wed, Jan 27 2010 5:34 PM | Permanent Link |
Nenad | Hallo,
right now we just copy the DB-Files from the directory during the night while the C/S-Server is running, this seems to work when nobody is accessing the DB, but i am always wondering if there is a safer way to do this ? I read some posts about customizing the DB-Server with some own copy-code but this seems to be quite work intensive .. Is there some finished working code to copy all tables at a defined time to another directory ? Nenad |
Wed, Jan 27 2010 7:03 PM | Permanent Link |
"Robert" | "Nenad" <nenad.steric@chello.at> wrote in message news:2E8D21E7-C32C-4853-8AF8-BB73D7DBC546@news.elevatesoft.com... > Hallo, > > right now we just copy the DB-Files from the directory during the night > while the C/S-Server is running, > this seems to work when nobody is accessing the DB, > but i am always wondering if there is a safer way to do this ? > > I read some posts about customizing the DB-Server with some own copy-code > but this seems to be quite work intensive .. > Is there some finished working code to copy all tables at a defined time > to another directory ? > > Nenad Just do a regular DBISAM backup. You can run it off a workstation or the server itself, with some little process that wakes up at a predetmined time. Robert |
Thu, Jan 28 2010 7:47 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Nenad,
<< I read some posts about customizing the DB-Server with some own copy-code but this seems to be quite work intensive .. Is there some finished working code to copy all tables at a defined time to another directory ? >> It's not too bad. This is the code that we use in our customized database server (main.pas in the dbsrvr.dpr project that we ship with DBISAM) for our backups: TSessionContext = class(TObject) private FSupportModule: TSupportDataModule; FElevateModule: TElevateDataModule; FSession: TDBISAMSession; FStatus: string; FProgress: Integer; procedure DoProgress(Percent: Integer); procedure DoStatus(const Msg: String); procedure DoError(const Msg: String); public constructor Create; destructor Destroy; override; property SupportModule: TSupportDataModule read FSupportModule write FSupportModule; property ElevateModule: TElevateDataModule read FElevateModule write FElevateModule; property Session: TDBISAMSession read FSession write FSession; end; implementation constructor TSessionContext.Create; var TempDescription: string; TempPath: string; begin inherited Create; Engine.GetServerDatabase('Support',TempDescription,TempPath); FSupportModule:=TSupportDataModule.Create(nil); with FSupportModule do begin SupportDatabase.Directory:=TempPath; OpenTables; end; Engine.GetServerDatabase('Elevate',TempDescription,TempPath); FElevateModule:=TElevateDataModule.Create(nil); with FElevateModule do begin SupportModule:=FSupportModule; ElevateDatabase.Directory:=TempPath; OpenTables; end; end; destructor TSessionContext.Destroy; begin FElevateModule.CloseTables; FSupportModule.CloseTables; FreeAndNil(FElevateModule); FreeAndNil(FSupportModule); inherited Destroy; end; procedure TSessionContext.DoProgress(Percent: Integer); var TempAbort: Boolean; begin FProgress:=Percent; FSession.SendProcedureProgress(FStatus,FProgress,TempAbort); end; procedure TSessionContext.DoStatus(const Msg: String); var TempAbort: Boolean; begin FStatus:=Msg+'...'; FSession.SendProcedureProgress(FStatus,FProgress,TempAbort); end; procedure TSessionContext.DoError(const Msg: String); var TempAbort: Boolean; begin FStatus:=Msg; FSession.SendProcedureProgress(FStatus,FProgress,TempAbort); end; procedure TMainForm.ServerEngineServerScheduledEvent(Sender: TObject; const EventName: String; var Completed: Boolean); var SessionContext: TSessionContext; TempDocumentGenerator: TDocumentGenerator; TempProductTypes: TStrings; I: Integer; BackupFiles: TStrings; TempBackupName: string; begin if (AnsiCompareText(EventName,'DailyBackup')=0) then begin SessionContext:=TSessionContext.Create; try with SessionContext do begin BackupFiles:=TStringList.Create; try SupportModule.SupportSession.GetTableNames('Support',BackupFiles); { Remove the stuff that we don't backup every day because of the size, or the stuff that we don't backup at all } if (DayOfWeek(Date) <> 7) then begin RemoveFromTStrings('article',BackupFiles); RemoveFromTStrings('downfail',BackupFiles); RemoveFromTStrings('downlog',BackupFiles); RemoveFromTStrings('groups',BackupFiles); RemoveFromTStrings('errorlog',BackupFiles); end; RemoveFromTStrings('mail',BackupFiles); RemoveFromTStrings('outbox',BackupFiles); RemoveFromTStrings('pendmail',BackupFiles); RemoveFromTStrings('weblog',BackupFiles); RemoveFromTStrings('blklog',BackupFiles); with SupportModule.SupportDatabase do begin TempBackupName:='support'+StringReplace(DateToStr(Date),'/','',[rfReplaceAll])+'.bkp'; Completed:=Backup(AddBS(Directory)+'backup\'+TempBackupName, 'Daily Support Backup for '+DateToStr(Date),6,BackupFiles); if Completed then begin Completed:=CopyFile(PChar(AddBS(Directory)+'backup\'+TempBackupName), PChar('h:\'+TempBackupName),False); if Completed then Completed:=DeleteFile(PChar(AddBS(Directory)+'backup\'+TempBackupName)); end; end; ElevateModule.ElevateSession.GetTableNames('Elevate',BackupFiles); with ElevateModule.ElevateDatabase do begin TempBackupName:='elevate'+StringReplace(DateToStr(Date),'/','',[rfReplaceAll])+'.bkp'; Completed:=Backup(AddBS(Directory)+'backup\'+TempBackupName, 'Daily Elevate Software Backup for '+DateToStr(Date),6,BackupFiles); if Completed then begin Completed:=CopyFile(PChar(AddBS(Directory)+'backup\'+TempBackupName), PChar('h:\'+TempBackupName),False); if Completed then Completed:=DeleteFile(PChar(AddBS(Directory)+'backup\'+TempBackupName)); end; end; finally BackupFiles.Free; end; end; finally FreeAndNil(SessionContext); end; end else Completed:=True; end; We just set up a scheduled event called DailyBackup using the Server Administration Utility, and set it to run every day after midnight. -- Tim Young Elevate Software www.elevatesoft.com |
Fri, Jan 29 2010 12:12 PM | Permanent Link |
Nenad | Hallo Tim,
thanks for the example-code, could this be a feature which would make sense to integrate into the default CS-binary ? The low-tech solution could also be just to use "net stop/start" to stop the service and the copy the files to some other dir - of course incurring a downtime. Nenad On 28.01.2010 13:47, Tim Young [Elevate Software] wrote: > Nenad, > > << I read some posts about customizing the DB-Server with some own copy-code > but this seems to be quite work intensive .. Is there some finished working > code to copy all tables at a defined time to another directory ?>> > > It's not too bad. This is the code that we use in our customized database > server (main.pas in the dbsrvr.dpr project that we ship with DBISAM) for our > backups: > > TSessionContext = class(TObject) > private > FSupportModule: TSupportDataModule; > FElevateModule: TElevateDataModule; > FSession: TDBISAMSession; > FStatus: string; > FProgress: Integer; > procedure DoProgress(Percent: Integer); > procedure DoStatus(const Msg: String); > procedure DoError(const Msg: String); > public > constructor Create; > destructor Destroy; override; > property SupportModule: TSupportDataModule read FSupportModule > write FSupportModule; > property ElevateModule: TElevateDataModule read FElevateModule > write FElevateModule; > property Session: TDBISAMSession read FSession write FSession; > end; > > > > implementation > > constructor TSessionContext.Create; > var > TempDescription: string; > TempPath: string; > begin > inherited Create; > Engine.GetServerDatabase('Support',TempDescription,TempPath); > FSupportModule:=TSupportDataModule.Create(nil); > with FSupportModule do > begin > SupportDatabase.Directory:=TempPath; > OpenTables; > end; > Engine.GetServerDatabase('Elevate',TempDescription,TempPath); > FElevateModule:=TElevateDataModule.Create(nil); > with FElevateModule do > begin > SupportModule:=FSupportModule; > ElevateDatabase.Directory:=TempPath; > OpenTables; > end; > end; > > destructor TSessionContext.Destroy; > begin > FElevateModule.CloseTables; > FSupportModule.CloseTables; > FreeAndNil(FElevateModule); > FreeAndNil(FSupportModule); > inherited Destroy; > end; > > procedure TSessionContext.DoProgress(Percent: Integer); > var > TempAbort: Boolean; > begin > FProgress:=Percent; > FSession.SendProcedureProgress(FStatus,FProgress,TempAbort); > end; > > procedure TSessionContext.DoStatus(const Msg: String); > var > TempAbort: Boolean; > begin > FStatus:=Msg+'...'; > FSession.SendProcedureProgress(FStatus,FProgress,TempAbort); > end; > > procedure TSessionContext.DoError(const Msg: String); > var > TempAbort: Boolean; > begin > FStatus:=Msg; > FSession.SendProcedureProgress(FStatus,FProgress,TempAbort); > end; > > procedure TMainForm.ServerEngineServerScheduledEvent(Sender: TObject; > const EventName: String; var Completed: Boolean); > var > SessionContext: TSessionContext; > TempDocumentGenerator: TDocumentGenerator; > TempProductTypes: TStrings; > I: Integer; > BackupFiles: TStrings; > TempBackupName: string; > begin > if (AnsiCompareText(EventName,'DailyBackup')=0) then > begin > SessionContext:=TSessionContext.Create; > try > with SessionContext do > begin > BackupFiles:=TStringList.Create; > try > SupportModule.SupportSession.GetTableNames('Support',BackupFiles); > { Remove the stuff that we don't backup every day > because of the size, or the stuff that we don't backup > at all } > if (DayOfWeek(Date)<> 7) then > begin > RemoveFromTStrings('article',BackupFiles); > RemoveFromTStrings('downfail',BackupFiles); > RemoveFromTStrings('downlog',BackupFiles); > RemoveFromTStrings('groups',BackupFiles); > RemoveFromTStrings('errorlog',BackupFiles); > end; > RemoveFromTStrings('mail',BackupFiles); > RemoveFromTStrings('outbox',BackupFiles); > RemoveFromTStrings('pendmail',BackupFiles); > RemoveFromTStrings('weblog',BackupFiles); > RemoveFromTStrings('blklog',BackupFiles); > with SupportModule.SupportDatabase do > begin > TempBackupName:='support'+StringReplace(DateToStr(Date),'/','',[rfReplaceAll])+'.bkp'; > Completed:=Backup(AddBS(Directory)+'backup\'+TempBackupName, > 'Daily Support Backup for > '+DateToStr(Date),6,BackupFiles); > if Completed then > begin > Completed:=CopyFile(PChar(AddBS(Directory)+'backup\'+TempBackupName), > PChar('h:\'+TempBackupName),False); > if Completed then > Completed:=DeleteFile(PChar(AddBS(Directory)+'backup\'+TempBackupName)); > end; > end; > ElevateModule.ElevateSession.GetTableNames('Elevate',BackupFiles); > with ElevateModule.ElevateDatabase do > begin > TempBackupName:='elevate'+StringReplace(DateToStr(Date),'/','',[rfReplaceAll])+'.bkp'; > Completed:=Backup(AddBS(Directory)+'backup\'+TempBackupName, > 'Daily Elevate Software Backup for > '+DateToStr(Date),6,BackupFiles); > if Completed then > begin > Completed:=CopyFile(PChar(AddBS(Directory)+'backup\'+TempBackupName), > PChar('h:\'+TempBackupName),False); > if Completed then > Completed:=DeleteFile(PChar(AddBS(Directory)+'backup\'+TempBackupName)); > end; > end; > finally > BackupFiles.Free; > end; > end; > finally > FreeAndNil(SessionContext); > end; > end > else > Completed:=True; > end; > > We just set up a scheduled event called DailyBackup using the Server > Administration Utility, and set it to run every day after midnight. > |
Sat, Jan 30 2010 10:04 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Nenad,
<< could this be a feature which would make sense to integrate into the default CS-binary ? >> It makes sense, but it isn't likely to happen. The scheduled events are simply something, like several other things in DBISAM, that need to be coded directly into the server. It's why we ship the source code to the dbsrvr.dpr project. -- Tim Young Elevate Software www.elevatesoft.com |
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