部署项目时问题

现象：部署完项目打开浏览器访问的时候报404的错误。

定位：清空浏览器的缓存

　　   查看tomcat的运行状况

　　   打开log查看

结果：在log日志中发现如下（部署了三次）

 1 Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000005c0000000, 8589934592, 0) failed; error=‘Cannot allocate memory‘ (errno=12)
 2 #
 3 # There is insufficient memory for the Java Runtime Environment to continue.
 4 # Native memory allocation (mmap) failed to map 8589934592 bytes for committing reserved memory.
 5 # An error report file with more information is saved as:
 6 # /usr/local/tomcat8.1-warehouse/bin/hs_err_pid9288.log
 7 Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000005c0000000, 8589934592, 0) failed; error=‘Cannot allocate memory‘ (errno=12)
 8 #
 9 # There is insufficient memory for the Java Runtime Environment to continue.
10 # Native memory allocation (mmap) failed to map 8589934592 bytes for committing reserved memory.
11 # An error report file with more information is saved as:
12 # /usr/local/tomcat8.1-warehouse/bin/hs_err_pid10610.log
13 Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000005c0000000, 8589934592, 0) failed; error=‘Cannot allocate memory‘ (errno=12)
14 #
15 # There is insufficient memory for the Java Runtime Environment to continue.
16 # Native memory allocation (mmap) failed to map 8589934592 bytes for committing reserved memory.
17 # An error report file with more information is saved as:
18 # /usr/local/tomcat8.1-warehouse/bin/hs_err_pid12228.log

解决办法：物理硬盘内存小而jvm的内存分配过大导致的，调整了jvm的内存大小重新访问可以了。嘎嘎