OSDC 2011 | Cluster on stereoids: Pacemaker 1.2

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Pacemaker hat die Vorstellung von Hochverfügbarkeitsclustern mit Linux grundlegend verändert, seit er 2007 aus dem alten Heartbeat-Code herausgelöst und in ein eigenes Projekt umgewandelt wurde. Der stabile Zweig von Pacemaker (1.0) bietet zum ersten Mal in der Linux-Geschichte einen konkurrenzfähigen Cluster-Manager mit sämtlichen "State of the art"-Features. Freilich gibt es trotzdem noch einiges zu tun -- schon längst hat die Arbeit an Pacemaker 1.2 begonnen, und wie sein Vorgänger wird auch der nächste stabile Pacemaker-Zweig erstaunliche Neuerungen im Gepäck haben. Dieser Vortrag stellt neue Ideen und Konzepte vor, die den Cluster-Stack für Linux in absehbarer Zeit erreichen werden. Er geht ausführlich auf die geplanten Features für Pacemaker ein -- darunter die neu eingeführten ACLs, eine neue Programmstruktur samt Master Control Process (MCP) und eine neue STONITH-Schnittstelle. Und natürlich spielt das Thema Performance eine wichtige Rolle in Pacemaker 1.2. Auch wirft der Vortrag ein Licht auf Entwicklungen abseits von Pacemaker. So biedert sich Kronosnet an, das Prinzip der Kommunikation innerhalb eines Clusters komplett zu revolutionieren. Zu guter Letzt hält Corosync noch ein paar Überraschungen bereit.

Software

Cluster on steroids:
Pacemaker 1.2
Cluster-Management in Linux:
Was 2011 passiert
Martin Gerhard LoschwitzMartin Gerhard Loschwitz
Das verknüpfte Bild kann nicht angezeigt werden. Möglicherweise wurde die Datei verschoben, umbenannt oder gelöscht. Stellen Sie sicher, dass die Verknüpfung auf die korrekte Datei und den korrekten Speicherort zeigt.

Heartbeat 1
Applikationen
HeartbeatHeartbeat

Heartbeat 2
Applikationen
Heartbeat CRM
Heartbeat CCM

2003: Application Interface Specification

Pacemaker
Applikationen
Pacemaker
Heartbeat Corosync

Generisches Interface für die
Kommunikation der Knoten

Überwachung der
Kommunikationsverbindung

Das verknüpfte Bild kann nicht angezeigt werden. Möglicherweise wurde die Datei verschoben, umbenannt oder gelöscht. Stellen Sie sicher, dass die Verknüpfung auf die korrekte Datei und den korrekten Speicherort zeigt.
SPOF

Bündelt verschiedene
physikalische Links

Die Netzwerkschnittstelle
ist immer “da”

Corosync = Clusterkommunikation
Kronosnet = Verbindung

Pacemaker
Applikationen
lrmd
Resource-Agent
Heartbeat
Pacemaker
Corosync

Universelles Framework
zur Befehlsausführung

Verwendet das
Advanced Message Queueing Protocol
(AMQP)

Pacemaker CloudPacemaker CloudPacemaker CloudPacemaker Cloud
Policy EnginePolicy EnginePolicy EnginePolicy Engine

Vereinfachte Logik bei
Ressourcen-Abhängigkeiten

Mehrere DRBD-Ressourcen teilen
sich eine TCP-Verbindung

Disconnects treffen alle
Ressourcen an der gleichen Stelle

Keine Max-BIO-Size mehr
= beliebig große Blocksize

1 Primärer Knoten hat
multiple Secondaries

Sie wollen mehr Informationen?
http://www.linbit.com/de/contact
Names and logos shown in this presentation may be trademarks or registered trademarks of their

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OSDC 2011 | Cluster on stereoids: Pacemaker 1.2

1. Cluster on steroids: Pacemaker 1.2 Cluster-Management in Linux: Was 2011 passiert Martin Gerhard LoschwitzMartin Gerhard Loschwitz Das verknüpfte Bild kann nicht angezeigt werden. Möglicherweise wurde die Datei verschoben, umbenannt oder gelöscht. Stellen Sie sicher, dass die Verknüpfung auf die korrekte Datei und den korrekten Speicherort zeigt.

2. Cluster-Management

3. Systemautomatisierung!?

8. Resource-Management

9. Cluster-Kommunikation

10. Heartbeat 1 Applikationen HeartbeatHeartbeat

11. Heartbeat 2 Applikationen Heartbeat CRM Heartbeat CCM

12. 2001: Service Availability Forum

13. 2003: Application Interface Specification

14. 2003: Novell kauft SUSE

15. 2005: OpenAIS

16. 2008: Corosync

17. Pacemaker Applikationen Pacemaker Heartbeat Corosync

18. Generisches Interface für die Kommunikation der Knoten

19. Überwachung der Kommunikationsverbindung

20. Kein Unicast-Support

21. Kein automatisches Ring-Recovery

22. Das verknüpfte Bild kann nicht angezeigt werden. Möglicherweise wurde die Datei verschoben, umbenannt oder gelöscht. Stellen Sie sicher, dass die Verknüpfung auf die korrekte Datei und den korrekten Speicherort zeigt. SPOF

23. Kronosnet

24. “VPN on steroids”

25. Layer2-Verbindung mit Switching

26. Multipoint-to-Multipoint

27. CLI zur Konfiguration

28. Verwendet den Kernel-TAP-Treiber

29. Bündelt verschiedene physikalische Links

30. Die Netzwerkschnittstelle ist immer “da”

31. Corosync = Clusterkommunikation Kronosnet = Verbindung

32. Kronosnet: Q3 2011

33. Pacemaker?!

34. Pacemaker Applikationen Pacemaker Heartbeat Corosync

35. Pacemaker Applikationen lrmd Resource-Agent Heartbeat Pacemaker Corosync

36. SPOF

37. Good bye, lrmd!

38. Willkommen, Matahari!

39. Universelles Framework zur Befehlsausführung

40. Daemon auf jedem Host

41. Verwendet das Advanced Message Queueing Protocol (AMQP)

42. Schnittstelle zu Pacemaker

43. Cluster-Weite Konfiguration

44. Cluster-Weites Logging

45. Cluster-Weite Paketinstallation

46. Einbindung von Windows-Servern!

47. Pacemaker CloudPacemaker CloudPacemaker CloudPacemaker Cloud Policy EnginePolicy EnginePolicy EnginePolicy Engine

48. Matahari: Ende 2011

49. Weitere Neuerungen in Pacemaker 1.2

50. ACLs: Wer darf was?

51. Skalierung von großen Clustern

52. Vereinfachte Logik bei Ressourcen-Abhängigkeiten

53. Pacemaker 1.2: Ende 2011

54. Und sonst?

55. DRBD 8.4

56. Replication Groups

57. Mehrere DRBD-Ressourcen teilen sich eine TCP-Verbindung

58. Disconnects treffen alle Ressourcen an der gleichen Stelle

59. Keine Max-BIO-Size mehr = beliebig große Blocksize

60. DRBD 8.4: Mai 2011

61. DRBD 8.5

62. n-Knoten-Replikation

63. n-Knoten-Replikation

64. 1 Primärer Knoten hat multiple Secondaries

65. DRBD 8.5: Ende 2011

66. Sie wollen mehr Informationen? http://www.linbit.com/de/contact Names and logos shown in this presentation may be trademarks or registered trademarks of their

OSDC 2011 | Cluster on stereoids: Pacemaker 1.2

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OSDC 2011 | Cluster on stereoids: Pacemaker 1.2