heapdump

heapdump在线教程

::: tip dump java heap, 类似 jmap 命令的 heap dump 功能。 :::

使用参考

dump 到指定文件

bash

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

::: tip 生成文件在arthas-output目录，可以通过浏览器下载： http://localhost:8563/arthas-output/ :::

只 dump live 对象

bash

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

dump 到临时文件

bash

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