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ch 10 Monitoring NCNU CSIE 97321012 林似真 Stella

ch 10 Monitoring NCNU CSIE 97321012 林似真 Stella. ganglia. 2010/6/8. NCNU CSIE Stella. 2. [ˈgæŋglɪə] KK. 2010/6/8. NCNU CSIE Stella. 3. 2010/6/8. NCNU CSIE Stella. 4. outline. WHY? HOW? WHAT? Ganglia Distributed Monitoring System Ganglia Architecture gmond gmetad

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ch 10 Monitoring NCNU CSIE 97321012 林似真 Stella

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  1. ch 10 Monitoring NCNU CSIE 97321012 林似真 Stella

  2. ganglia 2010/6/8 NCNU CSIE Stella 2

  3. [ˈgæŋglɪə] KK 2010/6/8 NCNU CSIE Stella 3

  4. 2010/6/8 NCNU CSIE Stella 4

  5. outline WHY? HOW? WHAT? Ganglia Distributed Monitoring System Ganglia Architecture gmond gmetad web front-end Monitor Intersection Ganglia Data Flow Distribution and Install Example Reference Q&A 2010/6/8 NCNU CSIE Stella 5

  6. WHY? 2010/6/8 NCNU CSIE Stella 6

  7. Why to Monitor? 系統狀態の監控 解決系統の問題 系統或應用程式の調校 系統升級時の依據 2010/6/8 NCNU CSIE Stella 7

  8. HOW? 2010/6/8 NCNU CSIE Stella 8

  9. How to Monitor? 單一主機の監控 分散式監控系統 2010/6/8 NCNU CSIE Stella 9

  10. How to Monitor? 單一主機の監控 commands : top, free, uptime, ps Log file Shell scripts MRTG ...etc.分散式監控系統 2010/6/8 NCNU CSIE Stella 10

  11. How to Monitor? 分散式監控系統 Network utilization CPU utilization Hardware System load Disk utilization ...etc. 2010/6/8 NCNU CSIE Stella 11

  12. Ganglia? Nagios ←→ Ganglia graph display → easy to see show host metrics visualize trends 2010/6/8 NCNU CSIE Stella 12

  13. WHAT? 2010/6/8 NCNU CSIE Stella 13

  14. WHAT IS GANGLIA ? 2010/6/8 NCNU CSIE Stella 14

  15. Ganglia - Wiki 2010/6/8 NCNU CSIE Stella 15

  16. Ganglia distributed monitoring system monitor tool for clusters and grids view live or historical statistics CPU load averages network utilization long-term trends graph display 2010/6/8 NCNU CSIE Stella 16

  17. WHAT IS Distributed System ? 2010/6/8 NCNU CSIE Stella 17

  18. Distributed Monitoring System Components : daemons that reside on cluster nodes server that collects clusters state information from nodes GUI-based front-end, which provides system activity visulization as for Ganglia components : → gmond → gmetad → web front-end 2010/6/8 NCNU CSIE Stella 18

  19. Ganglia Architecture 2010/6/8 NCNU CSIE Stella 19

  20. gmond Ganglia monitoring daemon Multithreaded Responsibilities : Monitor changes in host states Announce relevant changes Listen to the state of all the other ganglia nodes via a unicast or multicast channel Answer requests for an XML description of the cluster state. 2010/6/8 NCNU CSIE Stella 20

  21. gmetad Ganglia meta daemon Aggregate data, information steps : Poll gmond, clusters, or other gmetad Parse the collected XML Save numeric metrics in RRD(round-robin database) Export aggregated XML over TCP to clients 2010/6/8 NCNU CSIE Stella 21

  22. web front-end web interface written in PHP Graph generated by gmetad displays historical information highly dynamic 2010/6/8 NCNU CSIE Stella 22

  23. monitor interaction Gmond runs on each cluster node; gmetad can fail over between nodes. 2010/6/8 NCNU CSIE Stella 23

  24. 2010/6/8 NCNU CSIE Stella 24

  25. Distribution and Install 2010/6/8 NCNU CSIE Stella 25

  26. example official website demo wikimedia demo 2010/6/8 NCNU CSIE Stella 26

  27. Refernce 2010/6/8 NCNU CSIE Stella 27

  28. Reference Ganglia HowTo Ganglia official website wikipedia/Ganglia 2010/6/8 NCNU CSIE Stella 28

  29. Q & A 2010/6/8 NCNU CSIE Stella 29

  30. Fin. Now You Can Rest Easy (In Peace ?). 2010/6/8 NCNU CSIE Stella 30

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