Redis High availability is a project For master/slave

Redis-Master with one more Slave

Use sentinel to manager the nodes.

this process to monitor the sentinel and then wirte nodes in zookeeper for other programming use.

===>SLAVE DOWN<===

1. "pmessage"
2. "*"
3. "+sdown"
4. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"

===>SLAVE UP<===

1. "pmessage"
2. "*"
3. "+reboot"
4. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"
5. "pmessage"
6. "*"
7. "-sdown"
8. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"

=====> Master Down and Switch<====

1. "pmessage"

2. "*"

3. "+sdown"

4. "master mymaster 127.0.0.1 7000"

5. "pmessage"

6. "*"

7. "+odown"

8. "master mymaster 127.0.0.1 7000 #quorum 1/1"

9. "pmessage"

10. "*"

11. "+new-epoch"

12. "7"

13. "pmessage"

14. "*"

15. "+try-failover"

16. "master mymaster 127.0.0.1 7000"

17. "pmessage"

18. "*"

19. "+vote-for-leader"

20. "399711abb0c2933a11d4b265d82c7c40357cc4a7 7"

21. "pmessage"

22. "*"

23. "+elected-leader"

24. "master mymaster 127.0.0.1 7000"

25. "pmessage"

26. "*"

27. "+failover-state-select-slave"

28. "master mymaster 127.0.0.1 7000"

29. "pmessage"

30. "*"

31. "+selected-slave"

32. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"

33. "pmessage"

34. "*"

35. "+failover-state-send-slaveof-noone"

36. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"

37. "pmessage"

38. "*"

39. "+failover-state-wait-promotion"

40. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"

41. "pmessage"

42. "*"

43. "-role-change"

44. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000 new reported role is master"

45. "pmessage"

46. "*"

47. "+promoted-slave"

48. "slave 127.0.0.1:7002 127.0.0.1 7002 @ mymaster 127.0.0.1 7000"

49. "pmessage"

50. "*"

51. "+failover-state-reconf-slaves"

52. "master mymaster 127.0.0.1 7000"

53. "pmessage"

54. "*"

55. "+slave-reconf-sent"

56. "slave 127.0.0.1:7001 127.0.0.1 7001 @ mymaster 127.0.0.1 7000"

57. "pmessage"

58. "*"

59. "+slave-reconf-inprog"

60. "slave 127.0.0.1:7001 127.0.0.1 7001 @ mymaster 127.0.0.1 7000"

61. "pmessage"

62. "*"

63. "+slave-reconf-done"

64. "slave 127.0.0.1:7001 127.0.0.1 7001 @ mymaster 127.0.0.1 7000"

65. "pmessage"

66. "*"

67. "+failover-end"

68. "master mymaster 127.0.0.1 7000"

69. "pmessage"

70. "*"

71. "+switch-master"

72. "mymaster 127.0.0.1 7000 127.0.0.1 7002"

73. "pmessage"

74. "*"

75. "+slave"

76. "slave 127.0.0.1:7001 127.0.0.1 7001 @ mymaster 127.0.0.1 7002"

77. "pmessage"

78. "*"

79. "+slave"

80. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002"

81. "pmessage"

82. "*"

83. "+sdown"

84. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002"

===> Master up <===

1. "pmessage"
2. "*"
3. "-role-change"
4. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002 new reported role is master"
5. "pmessage"
6. "*"
7. "-sdown"
8. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002"
9. "pmessage"
10. "*"
11. "+convert-to-slave"
12. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002"
13. "pmessage"
14. "*"
15. "+role-change"
16. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002 new reported role is slave"

===> SLAVE ADD <===

1. "pmessage"
2. "*"
3. "+slave"
4. "slave 127.0.0.1:7000 127.0.0.1 7000 @ mymaster 127.0.0.1 7002"