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javadumpvisualvm
Dragonex
Dragonex

Reputation: 66

Java VisualVM heap space dump into output path

I need to know if it is possible to declare a output path for a heap space dump in the java visualVM. Is there any parameter that I can use for the java visual VM?

I have to trace a specific service on my server and need to get a dump of the heap space.

thanks.

UPDATE

Thanks a lot. I found a solution for my problem. I connected to my service with jmx remote. There it is possible to save the heapdump on any other drive of the server.

Upvotes: 3

Views: 7300

Answers (3)

Harald Gutmann
Harald Gutmann

Reputation: 31

For VisualVM 1.4.4 the following settings are needed in etc/visualvm.conf:

visualvm_default_userdir="<set-your-path>"
visualvm_default_options="<...> -J-Djava.io.tmpdir=<set-your-path>"
  • visualvm_default_userdir sets it for jmx based heap dumps.
  • visualvm_default_options sets it for process based heap dumps.

Upvotes: 3

Tomas Hurka
Tomas Hurka

Reputation: 6981

You can use the following visualvm.tmpdir system property to change the directory, where VisualVM stores snapshots, thread dumps and heap dumps. Usage:

visualvm -J-Dvisualvm.tmpdir=[custom_tmp_dir]

Upvotes: 5

Igor
Igor

Reputation: 688

You can change location of the temporary directory that VisualVM uses inside of /etc/visualvm.conf file as follows:

    visualvm_default_options=" ...  -J-Djava.io.tmpdir=<PATH> -J-Dvisualvm.tmpdir=<THE SAME PATH>"

Upvotes: 2

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