heapdump

heapdump online tutorial

::: tip dump java heap in hprof binary format, like jmap. :::

Usage

Dump to file

bash

[arthas@58205]$ heapdump arthas-output/dump.hprof
Dumping heap to arthas-output/dump.hprof ...
Heap dump file created

::: tip The generated file is located in the arthas-output directory and can be downloaded through the browser at http://localhost:8563/arthas-output/ :::

Dump only live objects

bash

[arthas@58205]$ heapdump --live /tmp/dump.hprof
Dumping heap to /tmp/dump.hprof ...
Heap dump file created

Dump to tmp file

bash

[arthas@58205]$ heapdump
Dumping heap to /var/folders/my/wy7c9w9j5732xbkcyt1mb4g40000gp/T/heapdump2019-09-03-16-385121018449645518991.hprof...
Heap dump file created