OpenJDK客户端VM-无法分配内存 [英] OpenJDK Client VM - Cannot allocate memory

问题描述

我正在集群上运行Hadoop map reduce作业. 我收到此错误.

I am running Hadoop map reduce job on a cluster. I am getting this error.

OpenJDK客户端VM警告:信息:os :: commit_memory(0x79f20000，104861696，0)失败; error ='无法分配内存'(errno = 12)

OpenJDK Client VM warning: INFO: os::commit_memory(0x79f20000, 104861696, 0) failed; error='Cannot allocate memory' (errno=12)

没有足够的内存来使Java Runtime Environment继续运行.

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

本机内存分配(malloc)无法分配104861696字节来提交保留的内存.

Native memory allocation (malloc) failed to allocate 104861696 bytes for committing reserved memory.

做什么?

推荐答案

确保您的计算机上有swap空间

make sure you have swap space on your machine

ubuntu@VM-ubuntu:~$ free -m
             total       used       free     shared    buffers     cached
Mem:           994        928         65          0          1         48
-/+ buffers/cache:        878        115
Swap:         4095       1086       3009

注意Swap行.

我刚在Elastic Computing实例上遇到此问题.原来交换空间默认情况下未安装.

I just encountered this problem on an Elastic Computing instance. Turned out swap space is not mounted by default.

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