Qhov Tseem Ceeb Qhov txawv - Memcached vs Redis
Ib qho kev sib raug zoo database yog hom database ntau, tab sis nws tsis haum rau khaws cov ntaub ntawv ntau. Yog li ntawd, NoSQL tau qhia. Nws sawv cev rau qhov tsis sib xws lossis tsis yog SQL. Memcached thiab Redis yog categorized li NoSQL. Qhov sib txawv tseem ceeb ntawm Memcached thiab Redis yog tias Memcached yog qhov chaw qhib, kev ua haujlwm siab faib lub cim xeeb caching uas tuaj yeem ua kom cov ntawv thov hauv web los ntawm kev txo qis cov ntaub ntawv thaum Redis yog qhov qhib, qhov tseem ceeb ntawm cov khw muag khoom rau kev tsim cov ntawv thov web. Kab lus no tham txog qhov sib txawv ntawm Memcached thiab Redis.
Memcached yog dab tsi?
Memcached yog qhov qhib, ua haujlwm siab, faib lub cim xeeb caching. Nws yog ib lub chaw khaws ntaub ntawv tsis tu ncua. Lub ntsiab kom zoo dua ntawm Memcached yog tias nws txo cov ntaub ntawv thauj khoom, yog li nws ua haujlwm tau zoo thiab nrawm dua rau cov vev xaib nrog cov ntaub ntawv siab loads.
Hauv Memcached, muaj cov lus txib cia, rov qab cov lus txib thiab cov lus qhia txheeb cais. Qee cov lus txib cia tau teeb tsa, ntxiv, ntxiv thiab lwm yam. Cov lus txib "set" yog siv los teeb tsa tus nqi tshiab rau tus yuam sij tshiab lossis uas twb muaj lawm. Cov lus txib "ntxiv" yog siv los teeb tsa tus nqi rau tus yuam sij tshiab. Cov lus txib "hloov" yog hloov tus nqi ntawm tus yuam sij uas twb muaj lawm. Cov lus txib "append" tuaj yeem ntxiv qee cov ntaub ntawv rau tus yuam sij uas twb muaj lawm. Cov "tau", "delete" yog retrieval commands. Cov lus txib "get" yog siv kom tau txais tus nqi khaws cia hauv tus yuam sij. Qhov "rho tawm" tuaj yeem siv los rho tawm tus yuam sij uas twb muaj lawm.
Redis yog dab tsi?
Nws yog qhov qhib, hauv-nco cov ntaub ntawv qauv khw, siv los ua database, cache, thiab lus broker. Redis stands rau tej thaj chaw deb phau ntawv txhais lus server. Nws khaws cov ntaub ntawv hauv cov ntawv tseem ceeb. Txhawm rau sib txuas lus nrog cov ntaub ntawv, tus neeg siv yuav tsum siv cov lus txib. Cov lus txib tau muab siv Redis Command Line Interface (CLI). Piv txwv li, department="IT". Ntawm no, chav haujlwm yog qhov tseem ceeb thiab "IT" yog tus nqi. Tus neeg siv tuaj yeem sau cov ntaub ntawv rau Redis cov ntaub ntawv khaws cia siv cov lus txib, "SET". e.g. SET "department" "IT". Redis teeb tsa cov ntaub ntawv raws li tus nqi tseem ceeb. Tus neeg siv tuaj yeem nyeem cov ntaub ntawv nrog "GET" hais kom ua. e.g. Mus rau "chaw haujlwm". Redis rov qab tus nqi sib xws rau tus yuam sij ntawd.
Redis yog qhov yooj yim thiab siv tau yooj yim. Nws yog categorized li NoSQL database. Tsis zoo li kev sib raug zoo database systems xws li MySQL, Oracle, Redis tsis siv cov ntxhuav los khaws cov ntaub ntawv. Nws tsis siv cov lus txib SQL li niaj zaus xws li xaiv, rho tawm, tsim, hloov tshiab thiab lwm yam. Nws siv cov qauv ntaub ntawv khaws cov ntaub ntawv. Cov ntaub ntawv tseem ceeb yog String, Lists, Sets, Sorted Sets and Hashes, bitmaps etc. Redis yog sau ua lus C, thiab nws yog qhib qhov chaw hla-platform system.
Daim duab 01: Redis
Qhov txiaj ntsig tseem ceeb ntawm Redis yog tias nws khaws cov ntaub ntawv hauv lub cim xeeb. Qhov no ua rau Redis ceev. Nws kuj tseem tuaj yeem sau cov ntaub ntawv rau lub disk. Nws tuaj yeem siv los ua lub kaw lus caching lossis cov ntaub ntawv khaws cia tag nrho. Lwm qhov zoo dua yog tias nws tuaj yeem siv nrog rau lwm cov ntaub ntawv. Ntau dua li kev nkag mus rau lub ntsiab database, Redis tuaj yeem khaws cov ntaub ntawv nkag mus tau yooj yim, thiab cov ntaub ntawv seem tuaj yeem nqa los ntawm cov ntaub ntawv tseem ceeb. Nws ua raws li master-slave architecture. Nws muab kev ua tau zoo, scalability thiab nws yooj yim rau siv.
Dab tsi zoo sib xws ntawm Memcached thiab Redis?
- Ob leeg yog categorized li NoSQL.
- Ob leeg khaws cov ntaub ntawv ua tus nqi-tus nqi.
- Ob leeg tuaj yeem khaws cov ntaub ntawv hauv nco.
Qhov txawv ntawm Memcached thiab Redis yog dab tsi?
Memcached vs Redis |
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| Memcached yog qhov qhib, ua haujlwm siab, faib lub cim xeeb caching uas tuaj yeem ua kom lub vev xaib nrawm los ntawm kev txo cov ntaub ntawv thauj khoom. | Redis yog qhov qhib, lub khw muag khoom tseem ceeb uas tuaj yeem siv los ua database, cache, thiab cov lus broker. |
| Memcached nyuaj rau nruab dua Redis. | Redis yooj yim rau nruab thiab siv. |
| Replication | |
| Memcached tsis txhawb nqa rov ua dua. | Redis txhawb nqa tus tswv- qhev replications. |
| Cov Ntaub Ntawv | |
| Memcached muaj cov hlua thiab cov lej ua cov ntaub ntawv. | Redis muaj ntau hom ntaub ntawv xws li cov hlua, Cov Npe, Hashes thiab lwm yam. |
| Speed | |
| Memcached qhov kev nyeem / sau nrawm yog siab dua Redis. | Redis qhov kev nyeem / sau nrawm nrawm, tab sis nws nyob ntawm daim ntawv thov tsim. |
Summary – Memcached vs Redis
Memcached thiab Redis yog pawg raws li NoSQL. Lawv tsis siv Structured Query Language rau cov ntaub ntawv khaws cia, khaws thiab tswj xyuas. Qhov sib txawv ntawm Memcached thiab Redis yog tias Memcached yog qhov qhib, kev ua haujlwm siab faib lub cim xeeb caching system thiab Redis yog qhov chaw qhib, lub khw tseem ceeb rau kev tsim cov ntawv thov hauv web. Siv Memcached lossis Redis nyob ntawm daim ntawv thov. Redis tuaj yeem siv tau thaum xav tau cov ntaub ntawv qib siab. Memcached yog qhov muaj txiaj ntsig hauv kev txo qis cov ntaub ntawv thauj khoom thiab ua kom lub vev xaib nrawm dua.
Download the PDF Version of Memcached vs Redis
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline lub hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Memcached thiab Redis
