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Lecture Structure
- Ijlasso (00:00:01)
- Wdh Feh er aSSifikatiO (00:00:39)
- Absturz in DBMS Betriebssystem Hardware (00:00:39)
- Fehler in der Anwendung (division by zero) (00:00:39)
- Überblick (00:04:27)
- Widerstandsfähigkeit (Resi er ce) (00:08:26)
- Fehlerhafte Dateneingabe (00:09:10)
- Medienfehler (00:13:50)
- Medienfehl r (00:15:44)
- Systemfehler (00:16:04)
- Wdhl Die TF l 1S (tiO (00:17:41)
- Wdhi Üi TF l lS tiOn (00:23:18)
- Wdh @D (00:23:18)
- kons tenten (eventuell ve e ühü wobei (00:23:18)
- e Folge von Ogerat onen (Aktionen) di (00:23:18)
- F l 1S (tiOI 1el l (00:23:19)
- TF l lS (tiO S und Log Manager (00:27:50)
- Ausführung von Transaktionen (00:27:58)
- Ef zienz Seltenes Schreiben auf Disk (00:34:33)
- Widerstandfähigkeit Häu ges Schreiben auf Disk (00:34:33)
- 6 Irgendwann Puffermanager schreibt Element auf Disk (00:34:33)
- Element wird in lokalen Adressraum der Transaktion geholt (00:34:33)
- 1 Anfordern eines Datenbankelements beim Puffermanager (00:34:33)
- Blocks auf Disk mit Datenbankelementen (00:34:33)
- Operationen (00:35:11)
- Operationen Beispiel (00:39:11)
- L uuc = o x oc=c fwm asus c no nAc cn I L E A fi 74 z f Ü Jiu f Q iä 7 (00:39:11)
- Dis Disk B (00:43:01)
- Logging (00:43:12)
- Medienfehler Log und Archiv verwenden (00:43:12)
- Log = Folge von log records (Log Datensätze) (00:43:12)
- Logginy (00:45:17)
- Überblick (00:46:33)
- LOQ Datensätze (00:50:35)
- 4 COMMITT Transaktion T ist beendet und wird nichts mehr ändern (00:50:35)
- Wird nach einem WRITE geschrieben (nicht erst nach einem OUTPUT) (00:50:36)
- Logdatei ebenfalls in Blöcke organisiert (00:50:36)
- Regeln des Undo Logging (00:52:38)
- (Regeln Undo Loggßg) (00:54:13)
- COMMIT Log Datensatz schre ber (00:54:13)
- Es ergibt sich folgende Abfolge (00:54:13)
- geschrieben werden NACHDEM alle verä mente auf Disk (00:54:13)
- Ü chrieben sein E5E OR neuer Wert von auf Disk g n wird (00:54:13)
- Log Manager (00:55:14)
- Transaktionsmanager OUTPUT Befehl weist Puffermanager an (00:55:14)
- Aber Komgrimierte Darstellgg gz Nur Änderungen (00:58:57)
- Blöcke auf D siben (00:58:57)
- Undo Logging Ursprünge (00:58:58)
- Hänsel und Gretel (01:00:57)
- Undo Loggi Beispiel (01:03:41)
- P F 6 ität VOFI TF l 1S (ÜO e (01:05:07)
- P r tät VOF TF l lS (tiO eI l (01:06:07)
- Undo Loggi Beispiel (01:06:08)
- MemB DiskA DiskB Log (01:06:08)
- FLUSH LOG Ne n aberT kann lange als comm ttedN llg ersche nen w rd aber be e nem Recovery (01:06:31)
- P F 6 ität VOF TF l lS (tiO El l (01:07:44)
- Recovery m ttels Llndo Logg n (01:08:09)
- Recovery mittels Undo Logging (01:10:03)
- Recovery mittels Undo Logging Beispim (01:16:17)
- Recovery mittels Undo Logging Beispie (01:17:01)
- Recovery mittels Unclo Logging Beispiel (01:17:07)
- Komplikatiion Systemfehjer Während Recovery (01:19:09)
- Checkpointing (01:22:42)
- Checkpointing Beispiel (01:24:57)
- Nicht blockierendes Checkpointing (01:27:11)
- 1 Schnell clurch geeignete Pointerstrukturin der Log (01:27:11)
- o D h Systemfehler während Checkpo nting (01:27:11)
- Z u r 2 TART CKPT T (01:27:11)
- Nicht blockierencles Checkpointing Recoven (01:27:12)
- frühesten Transaktionen aus T1 (01:27:12)
- Recovery weiter rückwärts aber nur bis zum Start der (01:27:12)
- Zuerst START CKPT Tl Tk (01:27:12)
- Zuerst END CKPT (01:27:12)
- NiCht b OCkieFeF1deS( Checkpointing Beispiele (01:29:47)
- NiCht b 0CkieFel 1deS ( Checkpointing Beispiele (01:30:34)
- Nicht blockierendes Checkpointing Beispiele (01:32:21)
- Überblick (01:33:59)
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Tags added to the series of this content:algorithmen (1); backup (1); Datenbanken (1); dbms (1); festplatte (1); performance (1); Persistenz (1); recovery (1); Speicherhierarchie (1); ssd (1); test (1); vorlesung (1);
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