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Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
Replica Sets
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Replica Sets

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  • 1. !"#$%&'()*+'*,+!"#$%&'+-"./+ 01%23.+4"55%6'*+78,6"559+ :;2"*+ <6)*2)=5+
  • 2. >"*"5'$+?3%$)/)#3@+ •  -3'5,%*2+=)5+-&'$"ABC.+ •  !"#$%&'()*+=)5+DE+ •  F%.3+.3"+)&&'/%)*'$+"G&"#()*+ –  -6'$$+,'.'+/".H+6)/.$@+5"',/+
  • 3. I'/%&/+ •  E+J%.+$%K"+4@-LM+5"#$%&'()*+ –  E/@*&35)*)C/+6'/."5N/$'O"+ –  M".P/+.5@+%.Q+
  • 4. R)66'*,+M%*"+ •  AA6'/."5+SAA)#$)2-%T"+U4IVW+ •  AA/$'O"+X/)C5&"+U3)/.V+SAA)*$@+U,JVW+
  • 5. Y3"+$)&'$+,J+ •  0)"/*P.+5"#$%&'."+ •  B*+6'/."5Z+ –  $)&'$[)#$)2[6'%*+ –  $)&'$[/$'O"/+ •  B*+/$'O"Z+ –  $)&'$[/)C5&"/+ > use local > db.sources.find()
  • 6. E,6%*%/.5'()*+ > // master > use local > db.printReplicationInfo() > db.slaves.find() > db.oplog.$main.findOne() // slave > use local > db.printSlaveReplicationInfo()
  • 7. Y)#)$)2%"/+ M->S M->S ->S ->S M->S(db1) ->S(db2) … M->S ->delayed_S M->S one machine can back up many M-/ (if it has enough resources) M<->M *very limited – best for experiments And Replica Sets (see below)
  • 8. !"#$%&'+-"./+ • +>"*"5'$%T"H+%6#5)O"H+'*,+5"#$'&"+!"#$%&'+?'%5/+ • +E+&$C/."5+)=+]+/"5O"5/+ • +E*@+7)*"9+*),"+&'*+J"+#5%6'5@+ • +R)*/"*/C/+"$"&()*+)=+#5%6'5@+ • +EC.)6'(&+='%$)O"5+ • +EC.)6'(&+5"&)O"5@+ • +E$$+15%."/+.)+#5%6'5@+ • +!"',/+&'*+J"+.)+#5%6'5@+)5+'+/"&)*,+ • +0'.'+&"*."5+'1'5"+ • +^*+O:[_+7`YE+aC$@+b;:;9+
  • 9. !"#$%&'+-"./+X+0"/%2*+R)*&"#./+ :[  E+15%."+%/+)*$@+.5C$@+&)66%c",+)*&"+%.+3'/+5"#$%&'.",+ .)+'+6'd)5%.@+)=+/"5O"5/+%*+.3"+/".[++7!"#$%&#'%()#*+,# $+&-,.%/+&#+*#)0(1#)0+230H+1%.3+2".M'/.`55)5[9+ b[  F5%."/+13%&3+'5"+&)66%c",+'.+.3"+6'/."5+)=+.3"+/".+ 6'@+J"+O%/%J$"+J"=)5"+.3"+.5C"+&$C/."5A1%,"+&)66%.+ 3'/+)&&C55",[++Y3%/+#5)#"5.@H+13%&3+%/+6)5"+5"$'G",+ .3'*+/)6"+.5',%()*'$+#5),C&./H+6'K"/+.3")5"(&'$$@+ '&3%"O'J$"+#"5=)56'*&"+'*,+'O'%$'J%$%.@+3%23"5[+ e[  B*+'+='%$)O"5H+%=+.3"5"+%/+,'.'+13%&3+3'/+*).+5"#$%&'.",+ =5)6+.3"+#5%6'5@H+.3"+,'.'+%/+,5)##",+7/""+<:9[+
  • 10. E+-".+ 4"6J"5+:+ 4"6J"5+e+ 4"6J"5+b+
  • 11. E+-".+ 4"6J"5+:+ 4"6J"5+e+ 4"6J"5+b+ ?!^4E!f+
  • 12. E+-".+ 4"6J"5+:+ 4"6J"5+e+ ?!^4E!f+ 4"6J"5+b+ 0BF]+
  • 13. E+-".+ 4"6J"5+:+ 4"6J"5+e+ ?!^4E!f+ 4"6J"5+b+ !`RBg`!A ^]>+
  • 14. E+-".+ 4"6J"5+:+ 4"6J"5+e+ ?!^4E!f+ 4"6J"5+b+
  • 15. R)*h2C5'()*+ { _id : <setname>, members: [ { _id : <ordinal>, host : <hostname[:port]>, [, priority: <priority>] [, arbiterOnly : true] [, votes : n] [, delay : time] } , ... ], settings: { [heartbeatSleep : <seconds>] [, heartbeatTimeout : <seconds>] [, heartbeatConnRetries : <n>] [, getLastErrorDefaults: <lasterrdefaults>] } }
  • 16. ^*%('()*+ > cfg = { ... _id : "acme_a", ... members : [ ... { _id : 0, host : "sf1.acme.com" }, ... { _id : 1, host : "sf2.acme.com" }, ... { _id : 2, host : "sf3.acme.com" } ] } > use admin > db.runCommand({replSetInitiate:cfg})
  • 17. R)66'*,/+ !"#$%&$'()"*"+"," +R3"&K/+%=+.3"+*),"+.)+13%&3+1"+'5"+&)**"&(*2+%/+&C55"*.$@+#5%6'5@[+ 4)/.+,5%O"5/+,)+.3%/+&3"&K+'C.)6'(&'$$@+'*,+.3"*+/"*,+5"iC%5"/+.)+ .3"+&C55"*.+#5%6'5@[+ !")(-./('0('/'&'1$"*"+"," +-.'.C/+%*=)56'()*+)*+.3"+5"#$%&'+/".+=5)6+.3%/+*),"j/+#)%*.+)=+O%"1[+ +3c#ZNN$)&'$3)/.Zbk;:lN5"#$-".>".-.'.C/m."G.+ !")(-./('23#4&'("*"567389:"," +^*%('."+'+5"#$%&'+/".[++ !")(-./(';)((<("*"5=77.:"," +n5""T%*2+'+5"#$%&'+/".+#5"O"*./+='%$)O"5/+=5)6+)&&C55%*2[+Y3%/+&'*+J"+ C/"=C$+,C5%*2+6'%*."*'*&"[+
  • 18. -".+4"6J"5+Y@#"/+ •  ])56'$+ •  o0!p+7#5%)5%.@+U+:[;9+ –  Y@#%&'$$@+,%/.'*.+$)&'()*+)5+/6'$$"5+3'5,1'5"+ •  ?'//%O"+7#5%)5%.@+qq+;9+ •  E5J%."5+7*)+,'.'H+JC.+&'*+O)."9+
  • 19. F%.3+-3'5,%*2+
  • 20. 0)&/Z+111[6)*2),J[)52N,%/#$'@N0BR-N!"#$%&'r-"./+ LC"/()*/m+ 453"&#(1#0(,(&3#6#(&#72,+8"#9#:;<;#6#".%(=#21># ?'(30)@453"&;$+.# ]"G.+/"//%)*Z+ +EC.)A/3'5,%*2+ s#/.'%5/Z+ +D'&K+/"//%)*+

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