Chapter 22: Distributed Databases

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حووهرل() لس طلجت0) 00۱ بان 

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+ Okt, 00: Onrburd Oxkiwen اه( مرا له سرا مت مها تسه س1 جاه( سس موه Ovarurreay Ondo it ‏طله) اه(‎ ‏ره‎ ‎Query Provessicnt‏ لها ‎Aeerxpoens Osrinted Dorie Oreviry ‏سره‎ ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 هوه‎ 

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+ Ovrinted Ocibwe Opstew © dstibuted database systew ovusists oP loosely coupled sites thot shore ‏نموم مه‎ ‏امبر‎ ۲ ‏اوه(‎ systews thot ron vo cock site ore indepeudeat oP ‏اس‎ per © Prxswiew ‏و رو‎ dott of coe or wore sis Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 ووه‎ 

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+ "cpa Dor ined Uidtwee 19/15 5 ‏سول لاد ستحصص حصا‎ © Ol sies have ideuicd spPiwore © Ore were of euck ober oad corer ty copperte tt procession user regents. © Cock ste surecders port oP ts cuivareny te teras oP right tt oboe schewas or svPuvare © Oppeus to wer us a sine systew © ‏ال لاس رما و‎ © OP Perec ‏وه له اوه ملهچ رون بط‎ ۱ ‏و( ما موی و ها اوه و سس(‎ query provessicry ١ ‏مس و مار و و صا جمسخامد دا سس(‎ provessicny بات جلخصمم ۱ و مسا و مور ‎Por‏ ای( لوا Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. coe ©Sbervehnts, Cork ced Cnakershe 

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+ Ovrinted Daa Oorene © Qssuve ‏ما‎ data wodel © Repicaica © Gpstew wotutaics wuliple copier oF data, stored to diPPered stew, Por Poster rettevd ocd Poul ‏ماه‎ مه ۲ ‎Praxgoeuis stored in dstiuct sites‏ ۱ ای سا ی موه نی شش ۲ © Rektion ts portioned iti severd Prockreus: systew wotuties severcd ‏ام‎ ‎replicas oP rock suck ‏.سمس‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 هوه‎ 

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@Octa Rephouva ۲ © rektivs or Proceed of a retitica is rephootied Pitts stored reduercacily to tua or اه و ‎stored of oll sites.‏ & متا ‎Pdbreptoaion oP a rektiog ts the vase where the‏ © ۲ Pulp ‏وال تلم‎ ore those te whick every sie opotaas a copy oP the ‏لول وی‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 هوه‎ 

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+ Orta Repirion (Oou.) ۲ ‏مد‎ of Replication © Quokbiy: Pakire oP site cvotctotay relation edges ont result to veracity oP ‏جار‎ ‎replicas exist. © Cordktew: pers oo 1 wy be processed by severd wes ia porcitel, ۶ ‏را لورت و ماه توص مول لیلج‎ of cack ste ovotctoiog a replica oP r. ۲ Dirudvovtes of Rephration © deorewsed post oP updates! cock replica oP relation romust be upcaied. اس تسف و لس مسج :ای رو حدمت خأن بمج كوت ل ۰ ‎chia (kee spaniel ppuunreuny bound werk ore‏ مر با لوا روم جاتو امه تسج باب اجه روت رمع رو ی مات تاره بو ۱ ‎ra primary DOT‏ 1 Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مه‎ 

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Oa Pragerciaios ای مه اس رن ريو رد عم مب ما ‎BE Over oF‏ ما اس و مور ‎Pronger‏ مه و و لس اه و ات تمس مرا ۳ ۲ ‏ای چا مه موسر لبون‎ ris spit fair severd sure ‏مرو‎ © ۵۱ ‏(رطموه ) روا سم موه و مه اس ماه‎ to eee ‏وم ز متس‎ © © specid ‏ع بو ات ال با رصاف‎ added to pads schews to serve ‏وا لو وه‎ مه مش( مج ما : ما ۲ ) اه اه مه سس ده ۲ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 هوه‎ 

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+ ‏سس‎ Praqweddiva oP ‏مت‎ Rekiva bokrace SOO 999 99 ی bokrace 909 00000 ۹89 PSO ویو 909 999 CASS طمه_ مه Oar? 0۳9 0۳090 0999 سبحت اتوت جا Wisi Wisi ilside سسطهه سسطهه ( )یه سس گولا موه هوه 0 

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مس( ربمت <ه بقل لبون تا | ص | جوم ‎q‏ مسا مارا 8 سور مارا ‎Odkeyrew ۳ 8‏ ‎Kaka 98‏ من ‎(obo 9‏ لسار 1 ‎Odkeyrew obs 89‏ لها سس رطا 0 ( طم وسجامجا بره مم سس ‎chet) = Tip‏ ‎bolo fyple_td‏ طمه_ موه 4 900 وم ‎e‏ 9909 02666 ‎oar? 909 9‏ 3 000۵ ۳ 9 99 0499 9 99 94۰9 90 9و9 ‎raf )‏ سار وه سا ‎Terns‏ = عمط ‎Orsdrer Gyre Orcewpe -O* Cre, gO, OOOO. ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ 

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+ Odvadiags oP Praqeedidiva © Wortzword: © dhs pordlel provesstny 7a ‏مره تن وم‎ © dws a rektic t7 be splt so thot tuples ore located where they ore wet ‏تس مس سنا‎ ۲ ‏تین‎ ‎۱ ‎Prequediy wessed 8 pled uiibuie dows ePRipical ipictog of veriicd ‏حسمي ذا‎ ۶ ‏مر وم رس وم روط‎ ۲ ‏ای وا و و و له تن‎ |۱۰ be suoressivel Prepvedied ip oc wbirary dep. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 هه‎ 

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رسیم مین + © Qos repay: Oewer to which ‏اه سنوی و رو ی مرو‎ he dletabs oP how aed where he dt tows ore stored faa detrbvted syste ۴ ‏ما و با روت ملس‎ t7! ۰ ‏رم ما‎ © ‏رم مشش‎ ‏رم را و‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 دوه‎ 

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+ Darcey OP (Deis cow > Order 0. @uery deta tew cst hove a syetew-wide Unique ore. 9. should be possible to Pied the locatica oP data ews oP Picea. 9. Usha be possible to choo the bpcutiza ‏روص وا ول او‎ P. ack site shoud be oble to oredte cew data ews cuiconpusly. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 ووه‎ 

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+ ‏اسف فقو‎ Gales = Dawe Ourter تست ۲ ‎of anes‏ وه و و ۶ ‎seamen: rere oped ch ne‏ لو لوم مد ولو ‎tee coh caer server ip bore‏ © تسده ۱ ها مس ری اس ۶ منت ۲ مت موی راو بت جحل © سا یوم بیس وم و ی اه ام وه سا ‎canoe Server‏ © Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 موه‎ 

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Ove oP Okwes © Qlerwatve to ceuirdzed schewe! euch site prefixes ity owe site ‏روت ها تا‎ senve thot yeurrdes Le., site UP ‏وعد‎ © Cue hovieg 0 unique ideuiPier, cad avoids problews associated wit ‏امه ای‎ ۱ uetwork trresporeury. © Gohiion: Creuie a set oP dhkeses Por dat tews; Otore the wappirg of oles 1 the red ‏وی‎ of rack site. ۲ ۱ wer oe be ware of the physicdd lavaticg oP a dota teow, cro ‏ج‎ ‏لخاد‎ ۴ the dota tec ts woved Pro por site ty carter. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 دوه‎ 

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جاح حدم !1 لحف اناا( + ۲ ‏و روت ی‎ dete of severd stew. © Goth sie hos 9 boo frocsuniiva women respousibte Por: © Dotetctetagy a boy Por recovery purposes: سس سا اه موه وه سا له و ‎Ponteipatay‏ © ‎of that site.‏ بجوم © uth ote hoe ‏اطع ات و مت و‎ Por! © Grontey he execuiiva oP trocsurives thot pricferaie of the site. ۱۳ exeruica. © Coordotiog the terwtodiog oP ead tracrariiva thot ‏ممعت‎ uf the sit, wwhick way ‏لآ اك لمصصاه عه دعاك أن اه ای با تمصع او‎ 5-3 0 e010 ©Sbervehnts, Cork ced Cnakershe 

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transaction| manager Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. eon ©Sbervehnts, Cork ced Cnakershe 

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+ Oystew Pure Ordo ۲ Pokres uae to dotted systews! © Coker of ante. © Lowe of ‏مس‎ ‎۱ ‏لوا‎ by cetvork trexewissira cocina protools suck a POPP © Boke ‏موم و‎ bk ١ ‏اموا‎ by wewwork probook, by novi ‏من تجو مسدب‎ cher cave kobe © Drtwork potion ٠١ 6 ‏وی‎ sail to be peticwd wheat har beea spl io buy or ore ca deg care fe beets ‏مجو وی وبا سوم و‎ ~ Onte: 0 subspsiew way ‏له له و اه یه‎ © Detwork portico ood sie Pokees ore yeurrdlly trdsticcquishable. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 دوه‎ 

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Cow Prowovls © Cwm provok ore wed ty ere downy ures vies © co trocsuntiva which execules ot wulipte siies ‏هه ای اجه سره‎ sites, or uborted of oll the sites. © wt wreptible ty hove ‏د‎ roeeunivg cowed of vor site cod oboried ot ter Bl he ter peer court (PO) protec te widely ved © Ve tree-phose crow (QPO) prowl & wore eowplocted ond wore expeusive, but avoids socwe drawbacks oF ‏وذا "ا" اس ای وس‎ ‏ام ولج اس سا اسر‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. e016 ©Sbervehnts, Cork ced Cnakershe 

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+ Two Pkwe Ovwwt Provo (OPO) ۳ Qoances Pobsioy wrdel — ‏وه راو وه لس‎ workin, cd do ot on sey her ban, suck oe epee mere sree pe obey sas ۲ ‏مش‎ of he protec f taticted by the coordicaior Per the ket step oF the trocsuntion kes bero reached. Bl Phe prowed Ruolver he bod ster of whi ‏اه مس‎ BE Let Phe a ‏ماسج‎ hited of ote G, ood fet ‏مه مت‎ ot G, ber 9 Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

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+ ‏سسجت‎ 0: Obracag a Deven ۳ ‏مس و ور و مه له من‎ © Cade he records <prepare > to the oa od Porces bog to skible stone © sek prepare TP wessnps 7 dl ster ot whick TP executed © Opera revevieg wes, iroccorivs woonger of site ‏او معط‎ the trocsuntion © Bet, ‏سره للم‎ > 1< to the by onnd seod ‏و‎ 1 weve ty O, ‏تا راو او و بخ‎ © add the record <ready T> Wo the boy © Pore dl revere Por To othe stone © sed ready TD wesene yO, Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ ‏سا0‎ ©: be Oroeios ۱ Powbe cowed of O,receued a ready P ‏و بو وم‎ vies! ohenuee Tet be cbovted. BE Opordkntor ‏مت و طلی‎ revord, Spawn 7> or <cbort T>, Wo the bry od Pores ‏موه له و لو‎ Once he record stable sora to trevordble (eved F Pokies oom) © Coordentor seuds ‏موه و‎ ty eur portvipont tPprentay it oP the devisioa ‏عد د مسحي‎ © Ponteipaats toke approprisie utes broly. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ ‏إن مدر[‎ Pahuee - Ote Pare Oka ote 6 recovers, texavices te bt detercoine he Pate of ‎Pofure.‏ هس سب سره مهو ‎ote exectes rede (7)‏ لس <1 موی ی را ۳ ‎۳ ‏لس <1 > مت را‎ ote executes wade (7) ‎۳ ‏ی را‎ ready 1> record: ste ant cout O, to ‏سب سم‎ of ۰ 1 ‏سس‎ reds (7) ۶ 1 1 ‏طم اس‎ )1( ‏تا لت ۵ ند و ‎records oowercikn‏ اس ‎ow‏ و ‎Bh he by‏ ما وم( مور و بطم 1« وه و سا ما۵ ماه( باس © ‎TP‏ مه اس سس ‏() طی سه سم 6 © ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Waaday oP Palures- Ovordertor Pale AP cordon Pais while ‏اور وی‎ Por Ps execute theo poricizaticry tes wet devide oa T's Pate: 1١ 118 ‏مرو ده‎ site ‏ویک و ی‎ 1< record in its log, thea TP oust be cowed, AP ‏عون اه صقصه مه‎ oc ‏بوک‎ 7> record te ts log, feo P cust be ‏واه‎ ۳ ‏برع ورن‎ portcipaicn ‏هوک همه بح جات‎ 1< record ta te bo, thew the Paled ‏وس 0 1 و او اه‎ ‏سل‎ T. (OB cece oP the chove moses holds, hea dl cote oes ‏اس‎ have ‏و‎ > 1۶ record fa her bxp, but oy ackdivad coil records (suck os <ebort > of <powwt T>). I his case wive ster net ut Por Op recover, to Pred ‏سوب‎ © @behtcg problew : ‏جوا چرشه‎ way have te walt Por ‏تم وا ی لطاوط‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Wardiay oP Pulures - Ostwork Portiva صم عدا اه سا روم سس و ‎poricipanis rewota‏ جا ‎of‏ لدت لدم صمت ‎Phe‏ ‎ef Pent oo the oot protocol.‏ Pike coordktor oad ts porinigoais betray io several partis: © Glee trot ore ol in the portiicg oootcioiey fhe coercion thick the coercion ros Paled, ced exerute the protocol ‏یی با ان وله جات لو وا‎ * Ov kare reste, but sites way stil hove to wait Por devisioa Prow coordi. © Phe ‏هت‎ od the ster ore th ‏ی اجه ماو‎ ١ the sites tothe vher portica have Paled, god Polow the usudl cocci protocol. ۱ ‏ری‎ ww harw results Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ (Reccusry ad Oouneveccy Oot 19 eoubt trowurtows hue u Sready T>, but wether o <powet T>, wor oa Sebo T> boy record. و اه ‎oP‏ سوه وت بط امه همم با 0 ‎BL Revovery ckprikws pou uote bok Promos tothe lox.‏ ‎bet oF locks bell by T‏ = را ‎oP <ready D>, write ot Srewdy TD, L>‏ لس © ‎whe te bo writes (read broke mas be exited).‏ ‎ia hor‏ صاصم ‎Por every ede treceurtrs Phe locke‏ © ‎ready 7, L> bry record ore revexnired,‏ ۲ Rex ork rearquisiion, irrcsuniva processiay com res une; the coal or ‏لول و اسان‎ treacsurioas is perPorwed pvocurredly wits the exevuicd of Sew ‏اس‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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4 Olercatve Oude’ oP Trawwiva Provessing BE Dotea of « sien ‏و اه ول وه مس‎ cerry ‏او‎ ولا ام و رون توا وق ۶ ۱ the to peri ot exterodky fottdted tracsucica to block food! trocsaniogs Por oc todeterotcate period © @lercaive wrdels cary vul ‏موی رطلوه نوا مج‎ © Code ty hoode wessuges west be vorePuly desiqaed to easure uiowicty ood durubliiy properties Por updates: ۱ ‏یی قاری‎ be cquarcaced, ta tat ioteroediate stages are visite, but ‏موی امه ون‎ on foozosisted ‏اه‎ resul due to ‏ووم مسجحجمت‎ امس عم نا موه و موه رس مس © مس ‎properties to‏ ی رسمه لبط با نا الم موی ‎Oessuyes ore‏ * ‎Kopleweutdtion techaiques kiter‏ مد ال ۱ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. e008? ©Sbervehnts, Cork ced Cnakershe 

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Olercave Dudes (Ova.) © Ootvatoy excople: Pucds trowsPer between two books © Dun phos oot would hove the poteatdl to block updates oo the oor favolved fo Pues tracer تاه عمط © ‎ty oer ste‏ و و لو لو چم ‎worry Prow source‏ )+ اه فطل ‎oredis‏ لو مج سس )۱ © Deseagiay hee lrog bed used Por ‏جوخاوط مصيج) جصاصمصدم لاس‎ ‏هی سم‎ eri) سح رت ۲ © ‏لكيه ماص صصص‎ a Wessuye ‏سم وم راون ع‎ quorcaierd tr be delivered < Guorater os loony os desicaicg site is up ood reuckoble, code to bocce eadelverdble wessaqes wet dev be avaible ‎acco.‏ و با ما رو لو ری جد ججا امه أصدجه یو ,ول مها بطلمیه 1۳ © ‎ ‎4 ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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4 Grror Contiow wik Perssirdt Desoagaq Bl Onde ty hands worsens her ty the core of vate of Palure sitios (eves ‏وی سم مه‎ delvery) ۱ sect bork to power site © Oke Palire wessuge i received Prow destoativa site, or destcaica sie tse bes unl exist, so7cey west be deposited back ia source ‏اجه‎ * Oroblew P source wormed hos bero dosed yet hues to take core of problew © ser code exevutog irocsuriog provessiry veto GPO does aot have to dead wi suk ‏عساه۳‎ © here we ony siuctiogs where ‏اه واه وت‎ error boa ‏ات‎ ‎beceht of obsrare ‏بسا اه‎ © Gx. prety ‏اس‎ ofl ‏اس‎ ures ‏اس‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Persea Dessay vod DorkPows Bl QorkPows prot o ‏لجيه اموسر‎ of inneunioad ‏له امه مس‎ sees eed pred ‏ی مومسم میرب‎ rete ogee © Gi, wheog book reveves o loon upplicdivg, way ceed to * Coctedt extercal credi-cherhiag ‏ره‎ ‎* Get approuds oP var or wore wes seed theo repped to ‏ما ما از‎ © Oe sin) worlPiws it Chopter OS © Cersisted wessugiay Porws the urdervicy foPrasticucture Por workAows ia ‏موی لاب د‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 90.00 ©Sbervehnts, Cork ced Cnakershe 

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Cowurrewwy ‏اهبوهن)‎ موی لا و ی چا مره ای توص رن( ۲ Bl Qe woke thot ew sie poriopdes fo he execuioa of ‏اس او و‎ io eau ‏,اهاط‎ © De weve dl replicas of ony few ore updaied © ‏عجو لز(‎ how to rete this it cose oP site Puhires biter Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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امومع موه رسب و و راوا رما ‎ste bok wane fot resides tao sie choses oie, sy‏ 0 موی سوم رقا ,6 ‎@ Okew ‏شم و‎ ceeds te tock a dota ites, de ct bak request te GS, rd locks swannger deterwices whether the lock coo be graced ‏رال‎ ‎۶ 1۴ ‏ما رس‎ weer seuds 0 wessuge ty the site whick taticted the request ‎© 1Pw, request ie dekved vail trea be graced, of which fee 0 wera bs ‏جا امج‎ the ‏له باه‎ ‎ ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ ‎ 

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+ Orade-Look-Dacxpr Bpprowk (Ov) © Ve tenewive coo read the date itew Prow gay vor oP the sites of hick o replica oF the dott tes resides. Bl Ortes cnet be perPormed oa dl repos of otc tea BE @dhantoges of sche: ۶ ‏ماع‎ ‎۶ ‏سل م۵‎ borrdhrt 1 0 of ‏اه‎ ‎9 ‎© Ockercbly: syetew ‏مومت با تا ی ها‎ ote Pakire. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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سسوسية 000 اله 19 ‏سای له ما ول لاك امه له مت ما مرا‎ recy Por ck tews stored of that ste. BE Okew o ixxeunton woken ty book oa voreploated this few GQ resid ot ote ©, 3 ‏مس او و و وم‎ © 12 © ‏لحطاصط جز‎ fn oo ee potble wode, theo he request tz delayed vel tt zor ‏اي سا‎ ©) Oke ‏وا سا ای سا مه مهو ما‎ warager seuds a wessuye back to the tector tochootoy trot the lock ‏اي وا اوح‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Ocerty Proton (vcs) dace of rephoded data ©4P Qe repioded oo tes, theo oooh request ‏و مه سا اه مج‎ swore trad oP oP the o sites in whick G ts stored. © Whe tensuciva does ont operde oo Quail thos obtaced ot locks ooo ‏اه سا لا اه رو‎ 6 © Ohea writoy the dete tiew, irresuntiva perPorws uries va oflrephrcr. B Beet © Cou be wed eves wheo sowe sites one ‏جا ادي‎ ١ details oo how ‏سم اج ارت وا‎ oP ste Phere hater B Orato © ‏تج‎ 6/6 + 0) woeseues Por handy bok requests, od (2 + () ‏وه سای شمه وا مس‎ ‎cack oP 9 trowsuriioces‏ وت - ما وه ات مه الم و( لو و ول و ‎sway have locks vo WOrd of the replicas oP‏ ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 جووو‎ 

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Orved Proivvol boc lock ‏وچ اه ام و مت‎ wuiorty proieonl, however, requests Por shared locks ore korded dPPeredly frac requests Por exchusive locke. © Ohad bebe. Dheo 0 trocsartod ceeds te look dota lew Gt stop) requests a lock ‏مس‎ G Prow the lock wosager of vor sie ovotatotay replica of GQ. ۲ ‏مه مب( با مب‎ ceeds ty lock dota tee Q, ۱ ‏جن اه وج‎ Q Prow the lock ‏وی و أد اه وی‎ a replica oF Q. Bl @dhantaye - kopoeer kes overhead oa read opercioce. BE Derodvontne - ‏سمالي‎ sverheud oo writes Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

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Quon Oowews Prowvol ۲ ۵ ‏لت‎ of bok woeiy ocd biwsed promos Bl Guk ote & wokned u wekh © Let be the tod oP ol ote wei ۱ ‏من تال‎ ches ‏تحصو لحي‎ Q, ued wre gumnine ‏بي‎ ٠ ‏مات‎ Q+Q>G ud CTQ>6 ۶ ‏مس‎ vos be choses (aod ‏ی و اوه مس نا‎ tow Buk ‏و توت بابرا نس ام‎ thal he suc of he ote weighty & >= G, Bl Ck uric cnet lock punk repiow thal he suc of he site werkt ‏ري 0 << و‎ © Cor ww we wee dh replicas oe writes ‏ماه وه تاه وا تمس‎ iy be vouvaluble desorbed hater Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

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جیسب 4 لجسحاسصل جا لحب ححا جوت جامصصاصجم ام موی لوا م1 ۲ مد ی عوی و مق سا نس مه ‎Cock‏ © ماه لاس و و و و ‎yeuercie‏ صا وا تام و( © ۱ 0 unique Ipod ‏عدص مدص‎ pier o legicd couier or the todd clocks. © Clbd usique thvestap is obtaiued by courutecatay ‏جمصاددصا جوا سوم بط‎ wit the voique deciPier. local unique timestamp global unique identifier Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Droeokropiay (Ovc.) BO ote uth a eb cock wd wokm surder Roeser © Gil ded) correct sertdkzabhy ‏ماه مه‎ © Out “dowbestnes” rxewkow Bo Pix his probiew © DePe wahia pack ste 6, ‏حيصا د‎ cbc: (LO), whick qecercies the wine et eT © Rewuire frat © xvowe ts bird obok wherever ‏او تا سوه‎ عه ‎ber‏ يها بوي حا ء ‎weed‏ ی و ‎of LO,‏ سس © otis cose, site 6 advouzer tis Irgicdl clock te the vohue x + ۰ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. e000 ©Sbervehnts, Cork ced Cnakershe 

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2 سن 0 + ۲ ‏تاه ما سوه لد لو توا‎ dua wk used dewees of ‏فلت رعا) تون‎ a sarosiee oP seri) Bu! cxeterckee replouioa! unkies are perPorwed ufo oknke “unter” ote, ‏راو و امسر له‎ tes. © Propogaivg is wt port oP the update ‏مجح تمس‎ * Ou be ‏ای شم اه للجم‎ * Ow be periods © Oa way oly be read ot shave sites, ot updated * Oo ceed te obtata lacks of cay rece site © )ةهقح ‏وموم كلها بمسحاسصل عونا لخامص بلط‎ ۱ €.4. Prow ceaird oP Pic to brook Pice © ‏رال صصص سوا أتخادى د85‎ quertes oP Ace Prov the rota dotdase Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Qeplowos wik Ded: Oowetewy (Ovu.) © Replies should see u ‏هوجو‎ suupshot of the database © Dhotis, 0 state oP the dotubase rePectog dl ePPevts of ol recsurtizas up i soe poi tothe sertdtzaiog order, ced a7 ePPevis of ‏عمجم تا رون‎ امه وه ‎@.y. Ore provides o Create Snapshot stewed to rede‏ ا ‎site‏ و و او ما ‎oro set oP‏ ما و ان 0 ache ۶ ‏یه‎ rePresk (cooks or periods) or axnnnd rebresk Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ 6( ‏ای ی بط‎ bans Rapin Bl Qik wulkraster reptoaion (doo caked urdie-ce here rephrioa) updos ae ‏اه و ار اتمه وه لو مور روف تم‎ © ‏سنوی بت مس ان بل لا و اون مه‎ of the ‏تب‎ oP rephoatiog, ced chtubose ‏مومس سل سوم مسر‎ of ‏اس سیر بت با‎ > Coupled uth 6 ‏موه سم‎ © Oey sees suppor hey propio ‏اجه ی بات‎ Per genset ieee © @lows updiies to voour eve P sows sites ore dscvouenied Pro the ‏,انم‎ bul of the cost oP ‏ری‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 موم‎ 

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ما سین + | :© جد د ‎Dy‏ مس امن ۷ ‎cen tow‏ 1: 00 ware () rie (”) ware (X) | | | ‏ماس‎ ‏اسر (00) سس‎ ‏جسن‎ )0( rat ‏ام را و‎ Wott Por X4ork oa Y (Resch ‏ام و موی ای اتقو‎ fools ot ether or ‏سپس‎ i Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 

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Ovurdized Opprowk ره وه و و ای له له و اي ‎qebdl watPor‏ © ‎coor dictation‏ موم © Red gopk: Red, but wckorw, state oF the sysiew. ۱ the ovaiciler charter the ‏اجه اه لحم‎ ات لصو سا ی وی خن ای با ۳ عوك مت اما جهن مت لحم و لو ‎is‏ لو رو هن عون ۱ .وماعواصل-صاعين عطاصدا ها جلججم مادصل صمت ددا © 18 ۱ ‏رو وت‎ ft selects ‏اه لت له مش و‎ sites. Nhe sites voll back the victor trorcsuntion. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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site Sy Global site Sy Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏موم‎ 

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Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ doe Oper (Ova) Bl Guppoee tht starter Pro the ote show it Pure, ٩ 1 ‏مه مس‎ ot G, > renin Wo were eee TT ‏مسج عم مج‎ Dornnpr of ste G, to the coordkntor) ©. Bud hea 1, requests o resource held by Tt ote Ge ١ ‏مه و ماج‎ Keer TP Brow Ga to be coordi ۱ ‏موه بو سا ما ید سین‎ reaches bePore he debte wesecne ۶ ‏وال ان و صط جوا من با‎ ۲ ‏اوه هط لا با‎ ‏وه مر م2‎ BL Dhe Babe oye cbove ‏و ای جر‎ rey. ۲ Rabe cides ‏الج جا اما او مج مس‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ ‏پوس(‎ Rolohe © Qoevessey rolbacks way result wheo deadock her todeed ‏و وه تحص‎ ‏مش‎ bos ber picked, ced cecouwhie gor of the troczantizes we oborted Por ‏وی‎ varehted to the deudioct. © Ocevessey rolbachs coo result Prow Pobe oyles te the qobdl watPor graph; owever, likelihood oP Pabse ‏ناج طسو‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 60.00 ©Sbervehnts, Cork ced Cnakershe 

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بلس igh ‏وه واه‎ Por whick systew is wt Puy usable should be extrecehy baw (ext. 99.99% carb) موی ‎oP‏ و( خن اد مشخ نا مرو ان روا ما( © (Polures are wore likely to horge distributed systews ۲ ‏سوواط و رات سا و‎ wet مه سی) ۰ سوه رو موه وه مرو با ملس ۶ اه ‎or bik te‏ وه ارجام © BE ‏سا‎ detevioa: dofoquichioy koh Poker Brow sie Paki ix hard © (port) sohtion: ‏مادا جد © باصملا جا دامتعا عون سره‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 

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+ ReooP kurta طسب ۲ اه تاه هه وت ما تسوا اه ‎bor‏ © بوم روا سوه ام ان لت موه لاله اسب مج بجبله() + اه اه من ‎old lok‏ ‎incase ody soe repioos oP a dott itew Poted, tay be‏ نصا ‎hed accessed data of o Poled site‏ ما شم سامت ‎possible to‏ ‎(ces ate)‏ ‎© 1Prephcoted dota tews were of Poled site, update sysiew mukioy to rewove thew Brow the bet oF replicas. ‎* Dhis should be reversed wheo Poled ste recovers, but addiiccal care weeds ty be tobe ty bray voles up to ‏ول‎ ‎© (Po Poled ste wos u pedir server Por sowe subspsiew, oo period wust be held to deterctor the cew server ‏مس الما جاص ,فل ممت بروج تتجهمه ‎C.y. cere server,‏ * ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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QevodPPiquraiod (Ovdi.) © Gree wetwork portion way ont be detiequichable Prow site Poakire, the Polowtcry ‏مد‎ oust be avoided © Ww oe wre vedi servers elevied in distort portico © Oore hoo coe portion updaies a reploded data few © Opdaes net be ‏و اه موه مره ی معط‎ dou ۲ ‏مسرت‎ worry besed ‏ام‎ ‎۱ coe write ol wvalible” ip trotdkziay but causes probes Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Dopriy-Besed Bpprowk ۲ Dopriy proton (Ovu.) © Orie opercticns * Brod highest versiva ounober like reads, cod set opus versiva ‏لام وا اوه‎ highest versica + * Ortes ore thea perPorwed 7a ll locked repioos ‏من امس و اج‎ these rephous ‏تنج طا اعد جز‎ versica ‏او‎ © Cakwes (sework oad ste) cose ‏جه مما جه ام مه‎ ۲ 3 ‏اه و اه ری و ی وی و‎ ey updated cute ites > Duras reads 3 wopriy oP reploas ore ovakible ‏اوه ی لب و‎ < ‏رس ما م۵‎ 8 phwe aww oa be wed io ‏ترس سل‎ © Ove: reas ore quarnived ip see kiest versie oP cot tea © Reteyraion if trvid okies ceeds ty be coor © Quorn oer cherihew vou be skvtely ‏الم‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Read Our Orie @l (Buckle) © Oreed prowonl fo sperid cose oP que poe © Ohaus reads ty new! oxy ove replica bul ukies require ol eplows ty be ‏جاج امي‎ ot oon eve (caked read vor write ol) BE Read exe write dl avakdbe (iyporkiy Puled otes) t» uliruive, bu ‏محص‎ 04 Poled ak way come buck up, witout a dervouerted ste ever beter awwore tof twas dscoccenied © Whe site hea hos oh volves, oad a read Pow thot site woud returc ot ‏سام موم‎ ر ام ما ما ال مر اه( اه رنه رن طد 1۴ ۶ سوم مس © Oth cetwork pontiionicg, sites to cock ‏روت ماو‎ update sae feo 02000000 © bebevieg sities to oer portiiccs have of Potted Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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دمتسي حا ‎Ow‏ + 1# Qhew Poled ste recovers, tet cock up wits oll upddtes thot it wiesed whe t wes dow © Probe: updates way be happecien ty ewe whose rephod te stored of the site uhte the site is recoveries © Goktion (: hot dhupdites 7a systed while ‏د وس‎ sit * Ooncceptible derupiog © Gokitos ©: ‏او للد عامط‎ oP ol dota tecws of the site, update to hitest versivs, thea retease locks * Ober scluticas uit: beter pramunreany dso ‏جات عليه‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 000? ©Sbervehnts, Cork ced Cnakershe 

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جیلعهظ) روما زر موه موون) ص اج ‎syste (Gevira (PD) are obo‏ (سوه ابا) جاص س0 1 ره ۷ ‎provide‏ اوه سا ما له او بو و وی ی ‎Bl‏ ‏۱ ‏او سر 6 را رصن لس ‎Wo weed Por‏ © ها موس وی مس نو خن او نت ‎BE Doky deirbued chicbwees‏ ام رویط رت اجه سل )© >( ‎rules‏ ند روا تاره ‎seemed veh reser‏ بت وولو و اجب میب بو اجره با ‎backup syste‏ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Qoordertor Oubotra مه 5 ۱ tPorwaivg lool ty ossunve the role oP ‏لو‎ P the ‏یی مه‎ اه ام سوه سا مت له ول سوه ها ‎exentes‏ © جما جد ‎state toPorovatiza‏ موی و( لت امه ‎fPorwatiza os the‏ ‎atu coercion‏ © dws Post revovery Prow ooordtor Pohure but evolves overhead curt sored provesskny. ۲ ‏سود منیا‎ © eed tp ‏هه و بنج و اد‎ oP Pokies: © Cx: Buly Okorther - applicable to spstews where every site oot ‏لمجو‎ a weep ty every ver sie. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 90.00 ©Sbervehnts, Cork ced Cnakershe 

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لسب) راد ۱ ۳ ۵ ‏همم‎ request thot te oot cxewered by the ooordkntor ‏اه اس‎ fiend 7, weer th the coordkrtor kar Paled (G, tes to rect too ce the ew ‏ور‎ Bl Ose aks on ‏اه ما لاه نت جنات وه تا وی ماه‎ ۵ thea wats Por oy of hese provesses ty oxewer wie ۰ BR resper wthia 7, connor hot ‏لك‎ ster wih ‏لامجاي‎ yreder thos fave Paled, (,elerts teeP the cw cordon. BO Rewer 6 reveurd ©, bec thor ‏صمب , 117 مسمجنا‎ io receive a ene heer ie a bebe ‏سجس لو سوام‎ erie bers br ‏سییر‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

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®ub Okprikee (Ovu.) BP co wessuge ts seul wikia 7", oss the site wily o higher oeober hos Baked; (©, restarts he ‏سحي‎ BO Per o Poked ste recovers, ١ ‏اجه مش سا امه‎ sure ‏اه‎ ۲ ۳ ‏راجت بو مرو مه مه ی‎ he revovered ste Porves oll processes ‏با با ای نوا نت‎ t becowe the coordadior site, eved P there ‏ای اه نت وه عشه رام و‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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+ Due third Gaaey (Proceso © Por cedized systews, the priwery orterica Por ‏واه اه سا مس‎ ‏رود لاور‎ ts the cucber of dish ‏یت‎ ۲ oodstibuied spstew, viher issues cust be tobe isto oat: © Dhe opst oP a data trowswissiva over the ueiwork. © De poteoial yeia tt perPorcaure Brow kevioy severd sites provess parts oP the query ta parcel. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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Query PreawPorweips BP renshitay dkebroic queries vu Prarenis. © 1 ‏ماو موی وا عاتاوومم سا مه‎ r Proc its Procevenis سم ما ماه مه ‎Rephive relative rby the expression to‏ © ‎fate‏ ماو میت سا اه موه اما سا ین ۲ ‎yack cane abn (OPEV )‏ 0 > سحت ‏(سسص) ‎ ‎OO =O ‏مرن سپس‎ DRE ‏ال‎ ) bere 6 ‏موی‎ = “ds” (vere, U arent) hick ts opterized toi ‎© pene ‏لا )مریم یس‎ ٩ ‏سیر‎ ares ent (PAM) ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

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+ Gece Gary (Oca) © Gree upon, hos oly tuples pertotcten to the ‏واه ی هب مها ابا‎ the ‏وه مساو‎ ماه و رات و ما سا رانا ‎aye, (et)‏ دا ‎BOD ip expressive tp the exopty set recardiess of the orutects oP the oppruat rebates,‏ ‎urepunl, os the result oP the query.‏ وا ‎B® Pied strate & Por the Wilde site to‏ ‎Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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Greople Join Provessiay ۲ ‏لین‎ the Polo wien rebaicod debra expression to whick the three rekiiccs ore ora gery bred o ote G,, he syotew ceeds to ‏سم‎ he rem ot ote 6۵ سیم با نمی سییر یی ‎br tet:‏ سسط مه ‎stored ot ste G,‏ & تسه 8 سس 6 ملسم Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 

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صفحه 67:
obra he remit ot GO). x re Coewipts Oruew BE Let n be orcktioa wik schewa (R, stores ot vie G, vires vie G., Let ra be arckioa wik sckewa R., Bl Cucknte he expressira ry, Pend 1. ‏هو‎ term — Mao ae (rl) ۷ ۰ 13 ©. Chp uy, row Gr G. 6 Crm beg rg carla, ۰ B®. Ohy tur, yo ©, b Oy, a 8. Cowie eer ot G). Dh he soe ‏ص‎ e007 Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 

صفحه 68:
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صفحه 69:
+ dota Orreterios thet Bipot Pardo ۲ ‏سین‎ ey Mg, Vn, rg here retain rt stored ot ste GO, Phe resut ‏اصح‎ ‎be preseuied ot ste ‏بر‎ ge ede ‏اعد يك‎ re reed a Oe reer ‏ع اسيك عا وه‎ Cet ee aC, ۳ BG, chips hikes oP (ry ra) Oye hey proche Be 5 ‏اليك‎ re) Gy ۸ ‏لد‎ و ام ام ی یر اه معط لاب امن وین (e wae. Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

صفحه 70:
ی () 2222222522 + © Oc dotubasr upphodiows require dota Prow ‏سل رس و روم و‎ located ‏شا مها و‎ of hardware ood soPivare phiPorns (عت , ان راما بل رورت لت ما (Decrees secret peers ‏سب‎ be ‏سپ‎ Oper rewy oro way be besed ‏اس مج سل مه‎ ‏لصف مومس‎ BE Gyseurbvel detals chovst perio oe toy Keowpuible. ۴ ۵ ‏موه هی‎ & u oeP vere kiver ow yy oP expiry ‏برد مق‎ ‏اسان‎ te descend to nmap ite ‏ناج ركام‎ © Credes on their of bud dakbuse ieyruiza wit ay phyoid database tect Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.70 ©Sbervehnts, Cork ced Cnakershe 

صفحه 71:
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صفحه 72:
+ OvPed Ow oP Ona BQ creewedt oa a vr ts cored © Dredly the rebated coded Bl Oqeewedt oa a ora creed shew © PReredt cower Por exxoe ‏اه لا‎ ‏بو سوت موم اور با‎ Bl ‏و و وه‎ represectatioa oP shared det ۶ ‏وا مد بر‎ prevbivn, ۶ ‏وه سول‎ ١ ۵8۵0۲ ‏مس‎ 0 > Gort order varios Bl Ocreewedt oa wits oP eure © Octo to anes © Cy. 2 ve Ovkxpe, Ouobt ve Booby Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏وجوه‎ 

صفحه 73:
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صفحه 74:
مس ین + وه مد س مسا طوطی سب نكا ‎systews‏ وه ود 0 7 by proviker ‏قاط اتب مه‎ view, od providers suery Pores x1 dobal view ۶ ‏سل(‎ Bul Recked crutdatcbase syste, wedhiors qecerdy dy ot bebe ‏اعورم جو مسجو عمو‎ © Ouke teres weddior ued wulidctobase ore suweives used toter ‏سس‎ © Dhe tere virtud dotdbere ty deo werd to rePer ‏هلسلس وا‎ ‏مدرد‎ Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 هوه‎ 

صفحه 75:
Orsviry Opsews © Dyed hieds of ‏مت رو‎ © Cropbpee ‏اس كلما‎ os ove, id, ewal, phour, oPPive addr, .. © ve persvod ‏ام ول مس( توت ها تا موه‎ ٠ ‏.دج‎ browser bovkwarks © Ohte pes © Cortes ‏ی بر سم‎ or tbat ۱ ect Por Porword lookup io Ped wore ‏و موه‎ © Velow pages © Cottes organized by properties © Cor reverse bovhup tp Pied cuits wotchioy sper Pic requirececis © ‏موه لت چا نا وه سس میا(‎ on ‏ات‎ ‎© Bhernive 0: Deb isterPace. Dot great Por progres © Clernive ©: Gperidzed dreviory were protools * Coupled wih spevtdized user tterPaces Ez Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 وجوه‎ 

صفحه 76:
+ reir) (Docsee (Precnol Bost waxed) wed drectiory ‏تسم چیه‎ © LOBE (ikwuerh Drevin ‏اس وه‎ ۶ Groped Prow eater (SOO proc! ۲ ‏میت‎ Ohy wt wer chtcbase protools the ODBOMDBO? 9 ‏تسه‎ © GropiPied proces Por ‏لاه‎ ype oP data urcess, evolved parcel to 000000 © Crovite ‏وه و‎ Kerarchicd cecviey wechovisw sili ty Pie systew ‏و‎ <١ cua be porticaed ceooupt wutple servers Por dPPerect party of the Herarchy, yet vive oi sive view ty eer - oy. dPPeredt servers Por Bel babs Dura Wil ood Bell bobs unpre © Orevioies woy use dotcboses us storage werhoisw Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 وجوه‎ 

صفحه 77:
4 LO@®@: bigkweidt Oreviry Bovess Prowonl ۲ ۱۸/۵۵ Ou Dede © Oct Occupation © Osrinied Dreviory Trees Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 007 ©Sbervehnts, Cork ced Cnakershe 

صفحه 78:
LOOP Ode Dodsl © LOOP ‏اه سس سس‎ © Cores oe sober ‏اه‎ ‎۳ Gok ery cnet hae wine ‏چم لام‎ )00( 0 cnt wp oF a sequeue of rehive detached canes (ROOz) BE Gy. Fo OD © one Ciberechaz, met Lobe, valcect, POCO © Granted ROOs (oom be speoPied we port of svkewa) ( ‏مرو زين‎ RRO OU ‏قن سمي‎ 7 مس نو ( © Grokor to paks too Pile spstew but writed ta reverse directa Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 

صفحه 79:
+ LOOP Oca Dodel (Ovw) B Gores ma hae atrbtes: © Otrbntes ore ‏اس رجا لجس مساج‎ © LOOP kee severd butts rer * @rcory, sire, toe types 2 Dek ‏لماص مااع‎ PoptikDckhese! postal ockhene B LODE chws dePrition oP vbint chose © Obert theses speck y ‏چا له وی جات‎ © Con vee iohertowwe ‏ماه ماه سای نا‎ © Cory von be ‏لاه‎ ty be oP var or wore oben choses > Oo weedy hue safe wostepertic ie Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 وجوه‎ 

صفحه 80:
+ LOOP Orta Dorel (vvw.) © Gottes oryavized into 0 dreviory tPoreuiod tree uocordery to ther DOs © beh tevel wudly represeu speviic vbievts ای متس ‎objevis suck us‏ موس وی ‎Aotercal ode‏ 8 هس نو © ‏اه مان‎ a onde tohert the OO of ‏لت رتسم‎ ocd x RODS ۱ €.q, taternd ode wit OD 08 ~ ‏یه ان‎ have OO starter wits D=OGO aed Rutker ROOs suck us ‏و‎ pr ou > OO oF oa eciry ex be yevercted by traversisny pk Proxy vont © beck evel can be oa dks pottery to coher ect > Cottes can tus hae wore fro oa DO ~ 6.9). person wore hot poe ‏ام‎ it Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 81:
+ LOOP Orta Dactpukiva © Ocdke GOL, LO@® des owt dePice DOL or DOL. 198 estewd, it dePices 0 vetwork protoonl Por ODL ood DOL © Overs wer 0a BP or ‏حلمب مت متس مس‎ © LOO ‏و( ان سا سل‎ < ۱0۵ Dcta Ieterchorcge Porat (LOW) ۲ ‏موی رصن‎ & very stop! voy selevion & projection Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 0.00 

صفحه 82:
+ LOOP Crores © LOGEC gery wet seo) © Buse: a ade to the OVP Prow where search is te stot ۶ © searck ‏موه‎ ‎* @otecs cow biraicg oF ‏اه مس لس‎ oP ‏ی‎ ‎~ Cxuntiy, wikhoords ood opproxtcoie equally supported © © ‏عد‎ < hist the bose, he bose oad ‏عت ,مط احات كا‎ he cutie subtree Pro the base ای سا نا هه © 1۱ va cucober oP results ced oa respurce DoCERDpICT © Dey ob spePy whether ty aiewotcdly derePereure uhases B LOOP ORbs we ove uy oF spevihyiog query © LOOP OP is cawher chercaive Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 83:
+ LOGE 06 Bret ptf ORD sper server und DO of bose © hop: /rareseorch.belabs crmlp=buced,c= DOD ۲ Optrad Parker pars separcted by 9 ‏اسامد‎ ‎۱ Pra Kort © Optoud pats spechy 6 atirbutes to returs (scopy crea ol) Goope (pub ‏وله‎ putes subir) 2 Gearck ooaion (ou (ork) Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 84:
+ O Onde wig LOOP OP1 #include <stdio.h> #include <Idap.h> main() { LDAP *Id; LDAPMessage *res, *entry; char *dn, *attr, *attrList [ ] = {“telephoneNumber”, NULL}; BerElement *ptr; int vals, i; // Open a connection to server Id = Idap_open(“aura.research.bell-labs.com”, LDAP_PORT); Idap_simple_bind(Id, “avi”, “avi-passwd”); ... actual query (next slide) ... Idap_unbind(Id); Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 85:
+ O Onde wry LOOP P11 (Ov) Idap_search_s(Id, “o=Lucent, c=USA”, LDAP_SCOPE_SUBTREE, “cn=Korth”, attrList, /* attrsonly*/ 0, &res); /*attrsonly = 1 => return only schema not actual results*/ printf(“found%d entries”, Idap_count_entries(Id, res)); for (entry=Idap_first_entry(Id, res); entry != NULL; entry=Idap_next_entry(id, entry)) { dn = Idap_get_dn(Id, entry); printf(“dn: %s”, dn); /* dn: DN of matching entry */ Idap_memfree(dn); for(attr = Idap_first_attribute(Id, entry, &ptr); attr != NULL; attr = Idap_next_attribute(Id, entry, ptr)) { // for each attribute printf(“%s:", attr); // print name of attribute vals = Idap_¢ ‘get. values(Id, entry, attr); for (i = 0; vals[i] != NULL; i ++) printf(“%s”, vals[i]); // since attrs can be multivaluec Idap_value_free(vals); 1 Idap_msgfree(res); Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏مومه‎ 

صفحه 86:
+ LOOP OP1 (Ovu.) © LOOP OC 1 dev kes Pucrtiow to cree, update cod delete ‏تفه‎ ‎§ Gock Pusntiva col behaves os o sepordie ‏و‎ ‎© LOOE dees wt support aiowiciy oP updates Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 00.00 ©Sbervehnts, Cork ced Cnakershe 

صفحه 87:
+ Ovrinied Orevory Trove © Orprazatzad ‏روت مق وت‎ be spit ict ‏وصصما موه تس عمط‎ ۶ ‏له‎ DP a OID ques ROO to be tagged a to ol euites to get oa vera DD » Cy. wo O's, vue wikk subi p=burect, 0 ‏ماک ,اکن اه کت اس لت‎ ۱ ‏من لوا 0۲۵ مب امد اه تم‎ yevyraphicd locatica or by oresrtzoizcrat ‏تسه‎ ۱ replication (woster-skve or wulierster rephoctio) oF OIDs (cet part oP LOOP © stecrkard) © Bak ‏ات وت و وا ورن با رون )و و‎ OID © Cy. OF Cet bobs way have a separde OID, oad OID Por p=bured way hove a ‏سا‎ wa n= @ell Labs coutaictay a rePerrd ty the Bel bobs DV © RePerdbs or the hey iy toteqrates ‏تست و ماه تال و‎ © Okeo a server yes a gery reuchieg a rePenrd onde, tay ether > Ponward query to rePerred OP eed retire ‏رجات صا جحت‎ oF * Give rePerrd back te cheat, whick trowsporeuly seuds query to rePerred DIT (Wako weer ter etic) Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

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Gad oP Okaper 

صفحه 89:
نعمرسمحوه ی ام ۳ ۶ © tony por, ot eet owe ste wast be up. © 0101 ‏دده‎ (C vies (patiepads oe well w coordkrapr) om Pal Phove (: Obracioy Prekoinay Devtivs: ‘Meindl ‏و‎ 000 ۵ ۰ © Cuen step ren ty cowl P eeiruied ‏ود ص طا‎ Prove © oF OPC f oplt tay © phases, Pose © oad Phare 9 oF OPC ۰ eed revords tia wuipk: (ct lewst (K) stew © 41a prose 9, coordknior seus ‏ابوج اموت‎ wessace i ol parioivatay ster, Qader OPO, honed of pre-cowsi deveiva cas be used to cowent despie coor diraior ‏اه‎ © unk blockioy problew os bag a7 < (C sites Pal Orautraks! © higher overheads: © events way ool be satePed ta practice 4 Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 90:
Prue 69 مموو Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. 

صفحه 91:
0 سب 3 Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 92:
coordinator Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. ‏سا0 لح 0 لا سواه 1 مومه‎ 

صفحه 93:
Oxsdrer Gyetrw Oneewpe -O* Crim, Gui O, OOOO. Prue ‏م66‎