[Java]-[IDEA compile project error: GC overhead limit exceeded]

Brief description of the problem

In the past, the project started fine without any problems, but recently it reported an error:

java.lang.OutOfMemoryError: ...(此处忽略) GC overhead limit exceeded

problem analysis

The error occurs during the compilation phase, not the runtime phase. Through querying relevant information, we found that

1. The virtual machine used by idea to compile Java projects and the virtual machine used by idea software itself are separate (that is, independent processes)
2. You only need to add memory to the virtual machine used by the compiler to solve the problem

solution

Solution one

Solution 2

The above operation still could not solve my problem, so I broke the point near the log printed before the error was reported, and debugged step by step. I found that when the project started, it was necessary to read data from the database into the cache. There were about 100,000 pieces of statistical data. , and the vm option of tomcat I set is:

-Xms25m
-Xmx25m

I suspect that the value may be too small, so set it to

-Xms2048m
-Xmx2048m

This problem was successfully solved after