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Video: Dab tsi ua rau Java heap dump?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tshawb nrhiav cov hauv paus hauv paus hauv heap dumps hauv java
- Cov ua rau yog txhua yam uas siv lub cim xeeb (uas yog ntau heev) Qhov koj tab tom nrhiav yog cov khoom uas siv lub cim xeeb ntau dua li qhov koj xav tias lawv yuav tsum.
- Yog tias daim ntawv thov coj tus cwj pwm kom raug, lub ua rau tuaj yeem yog qhov siab tshaj plaws pob qhov loj me dhau lawm. -
Kuj nug, ua li cas koj coj Java heap pov tseg?
Muaj ntau ntau txoj hauv kev los tsim java heap dump:
- Siv jmap -dump kev xaiv kom tau txais lub pob pov tseg ntawm lub sijhawm khiav;
- Siv jconsole kev xaiv kom tau txais cov pob pov tseg ntawm HotSpotDiagnosticMXBean ntawm lub sijhawm khiav;
- Heap pob tseg yuav raug tsim tawm thaum OutOfMemoryError raug pov los ntawm kev qhia -XX: +HeapDumpOnOutOfMemoryError VM xaiv;
- Siv hprof.
Kuj Paub, yog vim li cas heap dump generated? The JVM tsim tus Pob pov tseg cov ntaub ntawv nyob rau hauv cov ntaub ntawv txoj kev. Tej zaum peb yuav xav tau Pob pov tseg nyob rau hauv lub hauv paus ntawm kev thov. Yuav kom daws tau qhov kev siv nco, peb xav tau Pob pov tseg . Yog tias koj tsis tau teev HeapDumpPath, ces JVM tsim cov ntaub ntawv uas tus txheej txheem JAVA tab tom khiav.
Tsis tas li ntawd, Java heap dump yog dab tsi?
A pob tseg yog ib tug snapshot ntawm lub cim xeeb ntawm ib Java ™ txheej txheem. Lub snapshot muaj cov ntaub ntawv hais txog tus Java cov khoom thiab cov chav kawm hauv lub pob thaum lub sij hawm lub snapshot yog triggered. Vim tias muaj ntau hom ntawv rau txuas ntxiv cov ntaub ntawv no, tej zaum yuav muaj qee qhov sib txawv ntawm cov ntaub ntawv muab.
Kuv yuav nyeem ib daim ntawv pov tseg li cas?
Qhib lub pob tseg hauv dab noj hnub Memory Analyzer siv qhov kev xaiv File Open Pob pov tseg . Ua ntej, nws yuav ua kom koj tsim ib daim ntawv ceeb toom xau. Tus neeg siv tuaj yeem tsim nws lossis hla nws. Lub "txheej txheem" tab ntawm lub cim xeeb analyzer yuav qhia tag nrho qhov loj ntawm lub pob thiab daim ntawv qhia ncuav qab zib ntawm cov khoom loj.
Pom zoo:
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