JVM 奔溃的解决方案

Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000097f00000, 305659904, 0) failed; error='Cannot allocate memory' (errno=12)

#

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

# Native memory allocation (mmap) failed to map 305659904 bytes for committing reserved memory.

# An error report file with more information is saved as:

# /opt/hs_err_pid121350.log

 

 

解决方案:

1.首先用命令free查看系统内Swap 分区大小
 total used free shared buffers cache

       Mem: 1002 964 38 0 21 410

       -/+ buffers/cache: 532 470

       Swap: 1024 24 1000

2.添加swap文件
mkdir swap
cd swap
sudo dd if=/dev/zero of=sfile bs=1024 count=1000000

count=1000000参数代表数量，这个正好是1g，直接增大1g

3.转化为swap文件
sudo mkswap sfile

4.激活swap文件
sudo swapon sfile

5.查看效果
再次输入：free -m