Se dovesse servire per la configurazione della memoria (ma non per trovare i
leaks)
JVM Memory Settings in a Container Environment
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JVM Memory Settings in a Container Environment
Roman Ataman
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Il mercoledì 5 giugno 2019, 14:07:18 CEST, Uberto Barbini
[email protected] [it-torino-java-jug] <[email protected]>
ha scritto:
Per trovare il memory leak in fretta ti basta fare un memory dump con
l'applicazione che gira da un po' e poi guardarci con visualvm. I casi più
semplici li trovi cercando le classi tue con più istanze.
Metodi più sofisticati richiedono analizzare i log del gc, ma di solito lo vedi
da visualvm
Uberto
On Wed, 5 Jun 2019, 15:36 Salvatore Spoto [email protected]
[it-torino-java-jug], <[email protected]> wrote:
Ciao a tutti,
avrei la necessità di trovare dei memory leak in un'applicazione java.
Il sintomo è abbastanza banale: la memoria cresce costantemente nel tempo,
senza essere mai liberata, e questo porta il processo ad essere ucciso quando
raggiunge i limiti di memoria pre determinati del container (l'applicazione
gira in un docker).
Qualcuno saprebbe consigliari dei profiler, tool o best practice per eseguire
questo lavoro ?
Ho visto che vi sono JProfile e YourKit, purtroppo sono commerciali, ma
sembrano ottimi. Anche lo stesso Java Mission Control credo che richieda una
licenza per essere usato in ambienti di produzione. Forse di quest'ultimo vi è
una versione open source sulla jdk 11, ma io sto lavorando ancora sulla 7 :_/.
Grazie delle dritte...
Ciao,Salvatore
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