Two ways to get the JVM dump file

Two ways to get the JVM dump file　　

1. Two additional parameters when starting JVM:

   Health heap dump occurs when OOME:

   -XX:+HeapDumpOnOutOfMemoryError

   Health piles of documents Address:

   -XX:HeapDumpPath=/home/heap.hprof

2. Discovery process by executing instructions before the exception, the JVM direct current generated dmp file, 6214 is the JVM process number
   jmap -dump: format = b, file = / home / heap.hprof 6214

https://www.cnblogs.com/myseries/p/10827195.html