There is insufficient memory for the Java Runtime Environment to continue.

I have a problem this day.

the bug console like title.

and I try figure out it on the StackOverflow

https://stackoverflow.com/questions/32393981/there-is-insufficient-memory-for-the-java-runtime-environment-to-continue-hbase

they say no swap space in linux.

and csdn

https://blog.csdn.net/u013810234/article/details/81079627

`

free -h

`

 

I see the free swap space just has 18M now.

How to add some space to Swap space?