{"id":5910,"date":"2026-06-16T16:15:28","date_gmt":"2026-06-16T16:15:28","guid":{"rendered":"https:\/\/cloudsave.app\/knowledge-base\/mssql-transaction-log-full-recovery\/"},"modified":"2026-06-16T16:56:58","modified_gmt":"2026-06-16T16:56:58","slug":"mssql-operacij%c5%b3-%c5%beurnalas-pilnas-prevencijos-ir-spartaus-atk%c5%abrimo-strategijos","status":"publish","type":"post","link":"https:\/\/cloudsave.app\/lt\/knowledge-base\/mssql-operacij%c5%b3-%c5%beurnalas-pilnas-prevencijos-ir-spartaus-atk%c5%abrimo-strategijos\/","title":{"rendered":"MSSQL operacij\u0173 \u017eurnalas pilnas: prevencijos ir spartaus atk\u016brimo strategijos"},"content":{"rendered":"

Duomen\u0173 bazi\u0173 administratoriams (DBA) ir \u201eDevOps\u201c in\u017einieriams, pri\u017ei\u016brintiems \u201eMicrosoft SQL Server\u201c, nedaug \u012fsp\u0117jim\u0173 sukelia tiek daug staigaus nerimo, kiek 9002 klaida: Duomen\u0173 baz\u0117s \u201eX\u201c operacij\u0173 \u017eurnalas yra pilnas<\/em>. Kai operacij\u0173 \u017eurnalas u\u017esipildo ir negali i\u0161sipl\u0117sti, duomen\u0173 baz\u0117 fakti\u0161kai tampa tik skaitoma. Visos INSERT<\/code>, UPDATE<\/code> ir DELETE<\/code> operacijos sustoja, program\u0173 operacijos nepavyksta, o gamybin\u0117 veikla visi\u0161kai paraly\u017eiuojama.<\/p>\n

Suprasti pagrindin\u0119 \u201eSQL Server\u201c operacij\u0173 \u017eurnalo architekt\u016br\u0105, tiksliai diagnozuoti pagrindin\u0119 prie\u017east\u012f ir atlikti greito atk\u016brimo proced\u016bras yra kritiniai \u012fg\u016bd\u017eiai norint i\u0161laikyti auk\u0161t\u0105 pasiekiamum\u0105. \u0160iame i\u0161samiame vadove nagrin\u0117jami operacij\u0173 \u017eurnalo mechanizmai, b\u016bdai, kaip i\u0161spr\u0119sti pilno \u017eurnalo problem\u0105 kritiniu atveju, ir architekt\u016brin\u0117s geriausios praktikos, padedan\u010dios i\u0161vengti \u0161ios problemos ateityje.<\/p>\n

\u201eSQL Server\u201c operacij\u0173 \u017eurnalo architekt\u016bros supratimas<\/h2>\n

Nor\u0117dami efektyviai \u0161alinti pilno operacij\u0173 \u017eurnalo problemas, pirmiausia turite suprasti, kaip \u201eSQL Server\u201c ra\u0161o ir tvarko duomenis.<\/p>\n

I\u0161ankstinio \u012fra\u0161ymo \u017eurnalizavimas (WAL)<\/h3>\n

\u201eSQL Server\u201c naudoja i\u0161ankstinio \u012fra\u0161ymo \u017eurnalizavimo (WAL) protokol\u0105. Kai atliekamas duomen\u0173 pakeitimas, pakeitimas pirmiausia \u012fra\u0161omas \u012f operacij\u0173 \u017eurnal\u0105 atmintyje, o tada perkeliamas \u012f fizin\u012f \u017eurnalo fail\u0105 diske prie\u0161 atnaujinant faktinius duomen\u0173 puslapius duomen\u0173 baz\u0117s failuose (MDF\/NDF). Tai garantuoja ACID (atomumo, nuoseklumo, izoliacijos, patvarumo) atitikt\u012f, u\u017etikrinant, kad \u012fvykus avarijai \u201eSQL Server\u201c gal\u0117t\u0173 pakartoti (roll forward) arba anuliuoti (roll back) operacijas.<\/p>\n

Virtual\u016bs \u017eurnalo failai (VLF) ir ciklinis \u017eurnalizavimas<\/h3>\n

Viduje fizinis operacij\u0173 \u017eurnalo failas (LDF) yra padalintas \u012f ma\u017eesnius, loginius segmentus, vadinamus virtualiais \u017eurnalo failais (VLF). Operacij\u0173 \u017eurnalas veikia cikli\u0161kai. Kai \u017eurnalo \u012fra\u0161ai \u012fra\u0161omi, jie u\u017epildo vien\u0105 VLF ir pereina prie kito.<\/p>\n

Kai \u017eurnalas pasiekia fizinio failo pabaig\u0105, jis bando gr\u012f\u017eti \u012f prad\u017ei\u0105. Ta\u010diau jis gali perra\u0161yti VLF tik tuo atveju, jei tas VLF yra pa\u017eym\u0117tas kaip neaktyvus<\/strong>. Jei visi VLF yra aktyv\u016bs (tai rei\u0161kia, kad juose yra \u017eurnalo \u012fra\u0161\u0173, kuri\u0173 \u201eSQL Server\u201c vis dar reikia), \u017eurnalas negali gr\u012f\u017eti \u012f prad\u017ei\u0105. Jei \u012fjungtas automatinis augimas ir yra laisvos vietos diske, fizinis failas padid\u0117ja. Jei diskas pilnas arba automatinis augimas apribotas, susiduriate su 9002 klaida.<\/p>\n

\u017durnalo sutrumpinimas (Truncation) vs. \u017eurnalo suspaudimas (Shrinking)<\/h3>\n

Da\u017ena klaidinga nuomon\u0117, kad \u017eurnalo sutrumpinimas suma\u017eina fizinio failo dyd\u012f.
\n* \u017durnalo sutrumpinimas (Log Truncation):<\/strong> Procesas, kurio metu aktyv\u016bs VLF pa\u017eymimi kaip neaktyv\u016bs, tod\u0117l vieta tampa prieinama pakartotiniam naudojimui. Tai nesuma\u017eina<\/em> LDF failo dyd\u017eio diske.
\n* \u017durnalo suspaudimas (Log Shrinking):<\/strong> Procesas, kurio metu fizi\u0161kai suma\u017einamas LDF failo dydis ir vieta gr\u0105\u017einama operacinei sistemai.<\/p>\n

Naudojant \u201eFull\u201c atk\u016brimo model\u012f, \u017eurnalo sutrumpinimas \u012fvyksta tik<\/em> tada, kai s\u0117kmingai atliekama operacij\u0173 \u017eurnalo atsargin\u0117 kopija (darant prielaid\u0105, kad jokie kiti procesai nelaiko \u017eurnalo aktyvaus).<\/p>\n

\u201eOperacij\u0173 \u017eurnalas pilnas\u201c klaidos (9002 klaida) diagnozavimas<\/h2>\n

Kai \u017eurnalas pilnas, pirmas \u017eingsnis n\u0117ra aklai didinti viet\u0105 diske ar ma\u017einti failus. Turite nustatyti, kod\u0117l<\/em> \u017eurnalas negali b\u016bti sutrumpintas. \u201eSQL Server\u201c pateikia \u012fmontuot\u0105 mechanizm\u0105, leid\u017eiant\u012f tiksliai su\u017einoti, kas trukdo pakartotinai naudoti \u017eurnal\u0105 per sys.databases<\/code> katalogo rodin\u012f.<\/p>\n

Vykdykite \u0161i\u0105 T-SQL komand\u0105, kad nustatytum\u0117te kli\u016bt\u012f:<\/p>\n

SELECT \n    name AS DatabaseName, \n    recovery_model_desc AS RecoveryModel, \n    log_reuse_wait_desc AS LogReuseWaitReason\nFROM sys.databases\nWHERE name = 'YourDatabaseName';\n<\/code><\/pre>\n
Taip pat galite patikrinti dabartin\u012f operacij\u0173 \u017eurnal\u0173 vietos naudojim\u0105 naudodami:<\/p>\n
DBCC SQLPERF(LOGSPACE);\n<\/code><\/pre>\n
Da\u017enos log_reuse_wait_desc<\/code> b\u016bsenos<\/h3>\n
    \n
  1. LOG_BACKUP:<\/strong> Duomen\u0173 baz\u0117 naudoja \u201eFull\u201c arba \u201eBulk-Logged\u201c atk\u016brimo model\u012f, o operacij\u0173 \u017eurnalo atsargin\u0117 kopija nebuvo daryta neseniai. Tai da\u017eniausia prie\u017eastis.<\/li>\n
  2. ACTIVE_TRANSACTION:<\/strong> Ilgai trunkanti operacija (pvz., did\u017eiulis indekso atstatymas arba pamir\u0161ta ne\u012fsipareigojusi operacija) laiko \u017eurnal\u0105 aktyv\u0173.<\/li>\n
  3. REPLICATION \/ CDC:<\/strong> \u012ejungta \u201eTransactional Replication\u201c arba \u201eChange Data Capture\u201c (CDC), o \u201eLog Reader Agent\u201c dar neapdorojo operacij\u0173.<\/li>\n
  4. AVAILABILITY_REPLICA:<\/strong> \u201eAlwaysOn Availability Group\u201c grup\u0117je antrin\u0117 replika yra atjungta arba sinchronizuojasi per l\u0117tai, tod\u0117l pirmin\u0117 replika priversta saugoti \u017eurnalo \u012fra\u0161us, kol jie bus patvirtinti antrin\u0117je replikoje.<\/li>\n<\/ol>\n
    Greito atk\u016brimo strategijos: problemos sprendimas gamybin\u0117je aplinkoje<\/h2>\n
    Priklausomai nuo gr\u0105\u017einto log_reuse_wait_desc<\/code>, j\u016bs\u0173 skubus atsakas skirsis. \u0160tai greito atk\u016brimo strategijos da\u017eniausiems scenarijams.<\/p>\n
    1 scenarijus: Tr\u016bkstamos arba nepavykusios \u017eurnalo atsargin\u0117s kopijos (LOG_BACKUP<\/code>)<\/h3>\n
    Jei laukimo tipas yra LOG_BACKUP<\/code>, sprendimas paprastas: turite sukurti operacij\u0173 \u017eurnalo atsargin\u0119 kopij\u0105.<\/p>\n
    BACKUP LOG [YourDatabaseName] \nTO DISK = 'N:BackupsYourDatabaseName_EmergencyLog.trn' \nWITH COMPRESSION, STATS = 10;\n<\/code><\/pre>\n
    Kai atsargin\u0117 kopija bus baigta, neaktyv\u016bs VLF bus sutrumpinti ir \u201eSQL Server\u201c atnaujins \u012fprast\u0105 veikl\u0105. Jei j\u016bs\u0173 atsargini\u0173 kopij\u0173 diskas pilnas, gali tekti daryti atsargin\u0119 kopij\u0105 \u012f laikin\u0105 tinklo bendrinim\u0105 arba \u201enull\u201c \u012frengin\u012f (labai nerekomenduojama, nebent duomen\u0173 baz\u0119 lengva atkurti, nes tai nutraukia \u017eurnalo grandin\u0119):<\/p>\n
    -- \u012eSP\u0116JIMAS: Tai nutraukia \u017eurnalo grandin\u0119 ir pakenkia atk\u016brimui tam tikru laiku.\n-- Naudokite tik tada, kai b\u016btina, ir i\u0161kart po to atlikite PILN\u0104 atsargin\u0119 kopij\u0105.\nBACKUP LOG [YourDatabaseName] TO DISK = 'NUL';\n<\/code><\/pre>\n
    2 scenarijus: Ilgai trunkan\u010dios aktyvios operacijos (ACTIVE_TRANSACTION<\/code>)<\/h3>\n
    Jei viena operacija vykdoma valand\u0173 valandas, ji neleid\u017eia sutrumpinti \u017eurnalo vis\u0105 t\u0105 laik\u0105. Pirmiausia nustatykite problemin\u0119 operacij\u0105:<\/p>\n
    DBCC OPENTRAN('YourDatabaseName');\n<\/code><\/pre>\n
    \u0160i komanda gr\u0105\u017eina seniausi\u0105 aktyvi\u0105 operacij\u0105 ir jos serverio proceso ID (SPID). Galite surinkti daugiau informacijos apie tai, k\u0105 veikia SPID, u\u017eklausdami dinaminio valdymo rodinius (DMV):<\/p>\n
    SELECT \n    s.session_id,\n    s.login_name,\n    s.host_name,\n    r.start_time,\n    r.status,\n    r.command,\n    t.text AS QueryText\nFROM sys.dm_exec_sessions s\nJOIN sys.dm_exec_requests r ON s.session_id = r.session_id\nCROSS APPLY sys.dm_exec_sql_text(r.sql_handle) t\nWHERE s.session_id = <SPID_FROM_DBCC_OPENTRAN>;\n<\/code><\/pre>\n
    Jei operacija yra nepageidaujama u\u017eklausa arba u\u017estrig\u0119s procesas, gali tekti j\u0105 nutraukti, kad atlaisvintum\u0117te \u017eurnal\u0105.<\/p>\n
    KILL <SPID>;\n<\/code><\/pre>\n
    Pastaba: Did\u017eiul\u0117s operacijos nutraukimas sukels anuliavim\u0105 (rollback), kuris gali u\u017etrukti daug laiko ir laikinai sukurs papildom\u0105 \u017eurnalo veikl\u0105. Neperkraukite \u201eSQL Server\u201c paslaugos anuliavimo metu, kitaip duomen\u0173 baz\u0117 po perkrovimo pereis \u012f atk\u016brimo re\u017eim\u0105.<\/em><\/p>\n
    3 scenarijus: Skubus vietos paskirstymas (diskas pilnas 100%)<\/h3>\n
    Jei LDF failas u\u017e\u0117m\u0117 vis\u0105 disk\u0105, negalite net atlikti atsargin\u0117s kopijos, nes \u201eSQL Server\u201c reikia \u0161iek tiek \u017eurnalo vietos pa\u010diam atsargin\u0117s kopijos \u012fvykiui \u012fra\u0161yti. Tokiu atveju turite prid\u0117ti antrin\u012f \u017eurnalo fail\u0105 kitame diske, kuriame yra laisvos vietos.<\/p>\n
    ALTER DATABASE [YourDatabaseName]\nADD LOG FILE \n(\n    NAME = N'YourDatabaseName_Log2',\n    FILENAME = N'E:TempLogsYourDatabaseName_Log2.ldf',\n    SIZE = 5GB,\n    MAXSIZE = 50GB,\n    FILEGROWTH = 1GB\n);\n<\/code><\/pre>\n
    Tai suteikia \u201eSQL Server\u201c laisv\u0117s. Kai duomen\u0173 baz\u0117 veikia, atlikite operacij\u0173 \u017eurnalo atsargin\u0119 kopij\u0105, i\u0161tu\u0161tinkite antrin\u012f \u017eurnalo fail\u0105 ir pa\u0161alinkite j\u012f:<\/p>\n
    -- 1. Atlikite \u017eurnalo atsargin\u0119 kopij\u0105, kad sutrumpintum\u0117te \u017eurnal\u0105\nBACKUP LOG [YourDatabaseName] TO DISK = '...';\n\n-- 2. I\u0161tu\u0161tinkite laikin\u0105 \u017eurnalo fail\u0105\nDBCC SHRINKFILE (N'YourDatabaseName_Log2', EMPTYFILE);\n\n-- 3. Pa\u0161alinkite laikin\u0105 \u017eurnalo fail\u0105\nALTER DATABASE [YourDatabaseName] REMOVE FILE [YourDatabaseName_Log2];\n<\/code><\/pre>\n
    Geriausios operacij\u0173 \u017eurnalo prevencijos ir valdymo praktikos<\/h2>\n
    Reaktyvus problem\u0173 \u0161alinimas kelia stres\u0105 ir veikia SLA. Proaktyvi\u0173 architekt\u016brini\u0173 ir operacini\u0173 geriausi\u0173 praktik\u0173 \u012fgyvendinimas yra b\u016btinas \u012fmon\u0117s duomen\u0173 baz\u0117s stabilumui.<\/p>\n
    1. \u012ediekite patikim\u0105, automatizuot\u0105 atsargini\u0173 kopij\u0173 strategij\u0105<\/h3>\n
    Jei duomen\u0173 baz\u0117 naudoja \u201eFull\u201c atk\u016brimo model\u012f, da\u017enos operacij\u0173 \u017eurnalo atsargin\u0117s kopijos yra privalomos. Priklausomai nuo j\u016bs\u0173 atk\u016brimo ta\u0161ko tikslo (RPO) ir operacij\u0173 apimties, \u017eurnalo atsargin\u0117s kopijos tur\u0117t\u0173 b\u016bti daromos kas 5\u201315 minu\u010di\u0173.<\/p>\n
    \u012emoni\u0173 atsargini\u0173 kopij\u0173 sprendimai, tokie kaip \u201eCloudSave\u201c, \u017eymiai supaprastina \u0161\u012f proces\u0105. Tiesiogiai integruodamasis su \u201eSQL Server\u201c per VDI (Virtual Device Interface), \u201eCloudSave\u201c leid\u017eia DBA konfig\u016bruoti politika pagr\u012fstas, auk\u0161to da\u017enio operacij\u0173 \u017eurnalo atsargines kopijas. Tai u\u017etikrina, kad \u017eurnalai b\u016bt\u0173 nuolat trumpinami, saugiai u\u017e\u0161ifruojami ir saugomi ne vietoje arba nekintamoje debesies saugykloje, i\u0161vengiant LOG_BACKUP<\/code> laukimo b\u016bsenos be sud\u0117ting\u0173 pasirinktini\u0173 \u201eSQL Agent\u201c u\u017eduo\u010di\u0173.<\/p>\n
    2. Tinkamai nustatykite operacij\u0173 \u017eurnalo dyd\u012f ir valdykite VLF<\/h3>\n
    Pasikliovimas automatiniu augimu valdant operacij\u0173 \u017eurnalo dyd\u012f yra pavojingas antipatternas. Automatinio augimo operacijos yra brangios ir pristabdo operacij\u0173 apdorojim\u0105, kol diskas inicijuojamas nuliais (nebent \u012fjungtas \u201eInstant File Initialization\u201c, kuris netaikomas<\/em> \u017eurnalo failams).<\/p>\n
    Be to, da\u017enas, ma\u017eas automatinis augimas (pvz., didinimas 10% arba 50 MB vienu metu) sukelia VLF fragmentacij\u0105<\/strong>. Operacij\u0173 \u017eurnalas su t\u016bkstan\u010diais ma\u017e\u0173 VLF smarkiai pablogins duomen\u0173 baz\u0117s paleidimo laik\u0105, atsargini\u0173 kopij\u0173 na\u0161um\u0105 ir replikacijos v\u0117lavim\u0105.<\/p>\n
      \n
    • I\u0161 anksto nustatykite \u017eurnalo dyd\u012f:<\/strong> I\u0161analizuokite did\u017eiausias prie\u017ei\u016bros operacijas (pvz., indeks\u0173 atstatym\u0105) ir i\u0161 anksto nustatykite LDF failo dyd\u012f, kad jis gal\u0117t\u0173 jas priimti neaugdamas.<\/li>\n
    • Nustatykite fiksuot\u0105 automatin\u012f augim\u0105:<\/strong> Pakeiskite automatin\u012f augim\u0105 i\u0161 procentin\u0117s dalies \u012f fiksuot\u0105 dyd\u012f (pvz., 1 GB arba 5 GB), kad u\u017etikrintum\u0117te, jog VLF b\u016bt\u0173 sukurti tinkamo dyd\u017eio.<\/li>\n<\/ul>\n
      Galite patikrinti savo VLF skai\u010di\u0173 naudodami \u0161i\u0105 u\u017eklaus\u0105 (\u201eSQL Server 2017+\u201c):<\/p>\n
      SELECT \n    db_name(database_id) AS DatabaseName,\n    COUNT(vlf_sequence_number) AS VLF_Count\nFROM sys.dm_db_log_info(DB_ID('YourDatabaseName'));\n<\/code><\/pre>\n
      Jei j\u016bs\u0173 VLF skai\u010dius vir\u0161ija 500, apsvarstykite galimyb\u0119 palaukti ramesnio laikotarpio, suma\u017einti \u017eurnal\u0105 iki minimalaus dyd\u017eio ir rankiniu b\u016bdu padidinti j\u012f iki reikiamo dyd\u017eio dideliais blokais.<\/p>\n
      3. Optimizuokite indeks\u0173 prie\u017ei\u016bros operacijas<\/h3>\n
      Indeks\u0173 atstatymas yra visi\u0161kai \u017eurnalizuojamos operacijos, net ir naudojant \u201eBulk-Logged\u201c atk\u016brimo model\u012f (priklausomai nuo indekso tipo). 500 GB indekso atstatymas sugeneruos bent 500 GB operacij\u0173 \u017eurnalo \u012fra\u0161\u0173.<\/p>\n
      Nor\u0117dami suma\u017einti \u017eurnalo i\u0161sip\u016btim\u0105 prie\u017ei\u016bros metu:
      \n*   Naudokite SORT_IN_TEMPDB = ON<\/code> atstatydami indeksus. Tai perkelia r\u016b\u0161iavimo etap\u0105 \u012f \u201eTempDB\u201c, suma\u017einant na\u0161t\u0105 vartotojo duomen\u0173 baz\u0117s operacij\u0173 \u017eurnalui.
      \n*   Kur \u012fmanoma, pereikite nuo indeks\u0173 atstatymo<\/em> prie indeks\u0173 reorganizavimo<\/em>, nes reorganizavimas yra efektyvesnis \u017eurnalo at\u017evilgiu ir gali b\u016bti nutrauktas neanuliuojant visos operacijos.
      \n*   Suskirstykite dideles DELETE<\/code> arba UPDATE<\/code> operacijas \u012f paketus. U\u017euot i\u0161tryn\u0119 10 milijon\u0173 eilu\u010di\u0173 vienoje operacijoje, i\u0161trinkite jas 50 000 eilu\u010di\u0173 paketais, \u012fsipareigodami (commit) ir leisdami \u017eurnalo atsargin\u0117ms kopijoms sutrumpinti \u017eurnal\u0105 tarp paket\u0173.<\/p>\n
      4. Steb\u0117kite auk\u0161to pasiekiamumo ir replikacijos topologijas<\/h3>\n
      \u201eAlwaysOn Availability Groups\u201c grup\u0117je pirmin\u0117 replika negali sutrumpinti savo \u017eurnalo, kol \u017eurnalo \u012fra\u0161ai nebus patvirtinti visose sinchronin\u0117se ir asinchronin\u0117se antrin\u0117se replikose.<\/p>\n
      Jei antrin\u0117 replika atsijungia arba jei tinklo pralaidumas negali susp\u0117ti su pirmin\u0117s replikos operacij\u0173 generavimo grei\u010diu, pirmin\u0117s replikos siuntimo eil\u0117 i\u0161augs, o \u017eurnalas u\u017esipildys (AVAILABILITY_REPLICA<\/code> laukimo tipas).<\/p>\n
      \u012ediekite patikim\u0105 SQLServer:Replica > Log Send Queue<\/code> na\u0161umo skaitiklio steb\u0117jim\u0105. Jei antrin\u0117 replika visam laikui prarasta, turite j\u0105 pa\u0161alinti i\u0161 \u201eAvailability Group\u201c arba sustabdyti duomen\u0173 perk\u0117lim\u0105, kad pirminis \u017eurnalas gal\u0117t\u0173 b\u016bti sutrumpintas.<\/p>\n
      I\u0161vada<\/h2>\n
      Susid\u016brimas su pilnu operacij\u0173 \u017eurnalu yra duomen\u0173 bazi\u0173 administratori\u0173 \u201ekrik\u0161tas\u201c, ta\u010diau tai neturi baigtis ilgalaikiu prastovos laiku. Suprasdami i\u0161ankstinio \u012fra\u0161ymo \u017eurnalizavimo ir VLF mechanizmus, galite greitai diagnozuoti pagrindin\u0119 prie\u017east\u012f naudodami sys.databases<\/code> ir pritaikyti tinkam\u0105 greito atk\u016brimo strategij\u0105.<\/p>\n
      Ilgalaikis stabilumas priklauso nuo atsisakymo nuo reaktyvi\u0173 pataisym\u0173. I\u0161ankstinis \u017eurnalo fail\u0173 dyd\u017eio nustatymas, prie\u017ei\u016bros rutin\u0173 optimizavimas ir \u012fmon\u0117s lygio atsargini\u0173 kopij\u0173 platform\u0173, toki\u0173 kaip \u201eCloudSave\u201c, naudojimas grie\u017etiems, automatizuotiems \u017eurnalo atsargini\u0173 kopij\u0173 tvarkara\u0161\u010diams u\u017etikrins, kad j\u016bs\u0173 operacij\u0173 \u017eurnalai i\u0161liks sveiki, sutrumpinti ir pasireng\u0119 palaikyti didelio pralaidumo gamybinius darbo kr\u016bvius.<\/p>\n","protected":false},"excerpt":{"rendered":"
      ** Discover expert strategies for preventing and resolving MSSQL transaction log full errors (Error 9002). Learn rapid recovery techniques, VLF management, and architectural best practices for DBAs.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"MSSQL Transaction Log Full: Prevention & Recovery","rank_math_description":"** Discover expert strategies for preventing and resolving MSSQL transaction log full errors (Error 9002). 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