Imibuzo emincane iyasebenza, emikhulu iyehluleka: yiluphi usayizi wephakethe?
Amaphakethe edrayiva ye-SQL Server, imikhawulo yemiyalezo ye-MySQL kanye ne-MTU yendlela ye-IP yizingxenye ezihlukene. Ukwehluleka okuncike kusayizi akukwenzi kushintshisane.
Imibuzo emincane iyabuya, emikhulu iyalenga noma iwe, futhi umcabango wokuqala ukuthi kukhona okungalungile ngosayizi wephakethe. Lowo mcabango uvamise ukuba uqondile futhi cishe njalo uqondisa isigaba esingalungile. Izilungiselelo ezintathu zabelana ngegama elithi iphakethe futhi zikala izinto ezintathu ezingahlobene: ukupakishwa kokuthutha kwedrayiva yesizindalwazi, umkhawulo wemiyalezo weseva yesizindalwazi kanye neyunithi ephezulu yokudlulisa yendlela ye-IP. Ukulungisa enye ukuze kulungiswe uphawu olubangelwe enye iyona ndlela umsebenzi wemizuzu emihlanu ophenduka iviki lokulungisa. Ukulandelana okungezansi yikho okungithathe isikhathi esincane kakhulu.
Izendlalelo ezintathu, igama elilodwa elabiwe
Umgqa ngamunye ongezansi uyingxenye ehlukene enomnikazi ohlukile, futhi akukho nokukodwa okungabhekwa kususelwa kweminye. Umyalezo wesizindalwazi ungase uhlanganise izingxenye eziningi ze-TCP namaphakethe amaningi e-IP, ngakho ukwandisa usayizi wawo ovunyelwe akukwengezi indlela, futhi ukwehlisa isilungiselelo sedrayiva akusona isenzo esifanayo nokushintsha i-MTU yesixhumi. Igama livela kumafayela amathathu ahlukene wokumisa, yingakho ukulisesha kubuyisa izimpendulo ezintathu ezingahlobene. Qala ufunde umbhalo wephutha, bese unquma ukuthi yiliphi ifayela ozolivula.
| Setting or observation | Unit it describes |
|---|---|
| SQL Server client network packet setting | The provider's transport packaging for that connection |
| MySQL communication packet limit | A database message, such as one statement, row or replication event |
| IP path MTU | The largest IP packet the path carries without fragmentation handling |
Ngaphambi kokuvula ifayela lokumisa, bhala ukuthi isenzo esihlulekile singesiphi isendlalelo. Umbhalo wephutha uvamise ukusho lokho, futhi lowo mbhalo uyona ngxenye abantu abayeqayo.
Khomba umhlinzeki ngaphambi kokushintsha isilungiselelo sakhe
Kwi-SQL Server, bhala uhlelo lokusebenza, igama ledrayiva noma lomhlinzeki, inguqulo kanye nokumiswa kokuxhumana okusebenzayo. Umbhalo wokuxilonga kanye nohlelo lwedeskithophu kungafinyelela iseva efanayo ngabahlinzeki abahlukene, ngakho isilungiselelo esisiza esisodwa asifakazeli lutho ngomunye. Izindinganiso zokuqala zabahlinzeki ziyehluka, futhi inkambu yomucu wokuxhumana enegama elifanayo ayibona ubufakazi bokuthi umhlinzeki ngamunye uyichaza ngendlela efanayo.
Ungashintshi idrayiva enakekelwayo ngeyendala ngenxa nje yokuthi isixazululo sakudala sasebenzisa isintaksi yayo. Imibhalo yamanje ayikhuthazi ukuthuthukiswa okusha kulezo zingxenye ezindala, futhi ukuzuza imikhawulo yazo kuwukuhweba okubi ngesilungiselelo esisodwa.
Ukwenqatshwa komlayezo akusikona ukuma kwendlela
Ku-MySQL 8.4, imibhalo yephakethe lokuxhumana ichaza ukwenqatshwa kwesitatimende, umugqa noma isigameko selogi yebhanari esikhulu kakhulu ngokumelene nomkhawulo osebenzayo, futhi imikhawulo yakho kokubili iklayenti neseseva ingabaluleka. Lokho ukwenqatshwa esendlalelweni sesizindalwazi, hhayi isitatimende sokuthi inethiwekhi kumele ithwale iphakethe le-IP elikhulu kakhulu. Funda iphutha langempela kanye nokuma komlayezo oyinkinga: umphumela omkhulu owakhiwe imigqa eminingi emincane uyisimo esihlukile kumugqa owodwa omkhulu, futhi behluleka ngendlela ehlukile.
Ukufakwa kwe-MariaDB kudinga imikhawulo ebhaliwe kanye nokuxilonga kwenguqulo yayo siqu. Ukukopisha izindinganiso zokuqala ze-MySQL ku-MariaDB wukuqagela okunezinyathelo ezengeziwe.
Ubufakazi bendlela bubukeka kanjani ngempela
Inkinga yosayizi wendlela inophawu lwayo lweminwe: ukwehluleka kokuthutha okungaphindwa futhi okuncike kusayizi endleleni ethile nasemndenini wamakheli othile, lapho izindleko ezengeziwe zomhubhe zidlala khona futhi impendulo yokuthola isebenza ngendlela indlela evumela ngayo. Isikhathi sokuphela sisodwa asikwehlukanisi nokubuza okunensayo, iphutha ledrayiva noma umkhawulo ohlangothini lweseva, futhi ukuthatha isikhathi sokuphela njengobufakazi bezinkinga ze-MTU kukuthumela ngokuzethemba esendlalelweni esingalungile.
Uma uhlola indlela, gcina indawo oya kuyo, i-akhawunti kanye nomthwalo womsebenzi kungaguquki ukuze uguquko olulodwa kube usayizi ohlolayo. Ukuhlola okwashintsha izinto ezintathu akukutsheli lutho ngokuthi yikuphi okwakubalulekile.
Shintsha uguquko olulodwa olubhaliwe, bese ulubhala phansi
Gcina indawo oya kuyo, i-akhawunti, umhlinzeki kanye nomthwalo womsebenzi kungaguquki, bhala inani lokuqala, sebenzisa ushintsho olulodwa olusekelwayo futhi bhala umphumela. Isilungiselelo esincane esenza ukuhlola okukodwa kuphumelele siwubufakazi obusizo mayelana naleyo stack ehloliwe; akusona isixazululo esingcono kakhulu emhlabeni wonke futhi asikhombisi ukuthi yini eyabangela ukwehluleka kwasekuqaleni. Lokho kuyizitatimende ezihlukene, futhi okokuqala kuphela okusekelwa ucwaningo olulodwa.
Xazulula umkhawulo okhonjiwe esendlalelweni sawo, bese ubhala ukuthi kwakuyisiphi isendlalelo. Lona umbhalo ovimbela umuntu olandelayo ukuthi alungise idrayiva ngoba indlela yayiyinkinga.