Manual PA2

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Manual
make​ ​sure​ ​you​ ​have​ ​gcc​ ​compiler​ ​installed
This​ ​project​ ​includes​ ​files​ ​to​ ​implement​ ​4​ ​peers​ ​and​ ​2​ ​indexing​ ​servers​ ​but​ ​you​ ​can
have​ ​additional​ ​peers​ ​and​ ​servers​ ​the​ ​environment.​ ​If​ ​additional​ ​servers​ ​are​ ​added,
changes​ ​are​ ​required​ ​in​ ​‘server_list.txt’​ ​file​ ​at​ ​each​ ​peer.​ ​You​ ​need​ ​a​ ​separate​ ​terminal
for​ ​each​ ​one.
(instructions​ ​given​ ​in​ ​this​ ​manual​ ​are​ ​for​ ​4​ ​peers​ ​and​ ​2​ ​indexing​ ​servers)
1. Open​ ​terminals​ ​in​ ​each​ ​directory​ ​of​ ​4​ ​peers​ ​and​ ​2​ ​servers
2. Use​ ​make​ ​command​ ​to​ ​compile​ ​code​ ​on​ ​terminals​ ​ ​of​ ​‘p1’​ ​and​ ​‘server1’

3. On​ ​terminal​ ​in​ ​server1​ ​Enter​ ​‘./serv1​ ​20000’​ ​to​ ​start​ ​the​ ​server1​ ​at​ ​port​ ​20000.​ ​On
terminal​ ​in​ ​server2​ ​Enter​ ​‘./serv2​ ​30000’​ ​to​ ​start​ ​the​ ​server2​ ​at​ ​port​ ​30000.​ ​You
can​ ​use​ ​any​ ​available​ ​port​ ​number​ ​as​ ​long​ ​as​ ​same​ ​port​ ​number​ ​is​ ​used​ ​in​ ​client
arguments​ ​and​ ​same​ ​is​ ​listed​ ​in​ ​server​ ​list​ ​of​ ​each​ ​relevant​ ​client​ ​too.

4. On​ ​terminals​ ​of​ ​p1,​ ​p2,​ ​p3​ ​and​ ​p4​ ​enter​ ​‘./peer1​ ​20000​ ​9010’,
‘./peer2​ ​20000​ ​9020’,​ ​‘./peer3​ ​30000​ ​9030’​ ​,​ ​‘./peer4​ ​30000​ ​9040’​ ​to​ ​connect
peer1​ ​and​ ​peer2​ ​to​ ​server1​ ​and​ ​remaining​ ​to​ ​server2.

5. 90​X​0​ ​are​ ​the​ ​port​ ​number​ ​at​ ​which​ ​that​ ​peer​ ​listens​ ​for​ ​connections​ ​from​ ​other
peers.​ ​It​ ​should​ ​be​ ​unique​ ​for​ ​each​ ​peer​ ​as​ ​it​ ​is​ ​used​ ​to​ ​differentiate​ ​between​ ​two
peers.
6. On​ ​Client​ ​terminal,​ ​you​ ​can​ ​choose​ ​between​ ​2​ ​options,​ ​make​ ​selections
accordingly.
a. To​ ​register​ ​a​ ​file,​ ​enter​ ​its​ ​full​ ​name​ ​as​ ​well​ ​as​ ​extension.​ ​Eg.”7.txt”

b. To​ ​lookup​ ​a​ ​file,​ ​enter​ ​its​ ​full​ ​name​ ​as​ ​well​ ​as​ ​extension.​ ​Eg.”7.txt”

7. After​ ​you​ ​have​ ​made​ ​a​ ​lookup​ ​query​ ​if​ ​the​ ​file​ ​is​ ​not​ ​found,​ ​appropriate​ ​message
is​ ​displayed.
If​ ​the​ ​file​ ​is​ ​found,​ ​on​ ​local​ ​server,​ ​peer​ ​does​ ​not​ ​search​ ​for​ ​file​ ​on​ ​other
servers.​ ​ ​list​ ​of​ ​ports​ ​on​ ​which​ ​the​ ​file​ ​is​ ​available.

If​ ​file​ ​is​ ​not​ ​found​ ​on​ ​local​ ​server,​ ​peer​ ​searches​ ​for​ ​it​ ​on​ ​other​ ​servers

At​ ​this​ ​point​ ​you​ ​can​ ​select​ ​a​ ​port​ ​to​ ​download​ ​from​ ​or​ ​to​ ​exit​ ​from​ ​the​ ​lookup
query​ ​without​ ​downloading.

If​ ​not​ ​found,​ ​appropriate​ ​message​ ​is​ ​displayed
8. After​ ​selecting​ ​a​ ​port​ ​to​ ​download​ ​file​ ​from,​ ​message​ ​is​ ​displayed​ ​if​ ​the​ ​file​ ​is
successfully​ ​downloaded​ ​and​ ​you​ ​can​ ​check​ ​it​ ​in​ ​the​ ​respective​ ​peer’s​ ​directory.

9. You​ ​can​ ​repeat​ ​the​ ​register​ ​and​ ​lookup​ ​queries​ ​for​ ​as​ ​long​ ​as​ ​required.



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