arthas/tutorials/katacoda/command-heapdump-cn/heapdump.md

dump java heap, 类似jmap命令的heap dump功能。

使用参考

dump到指定文件

heapdump /tmp/dump.hprof{{execute T2}}

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

只dump live对象

heapdump --live /tmp/dump.hprof{{execute T2}}

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

dump到临时文件

heapdump{{execute T2}}

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