PHP exec Java cmd失败,权限被拒绝
作者:互联网
我目前正在编写一些需要调用jar的PHP脚本.我编写了一个测试脚本来测试Java -version cmd.
echo exec('whoami');
echo '<hr/>';
exec('java -version', $out);
var_dump($out);
页面返回如下:
apache
array(6) { [0]=> string(134) "OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00007ff705000000, 2555904, 1) failed; error='Permission denied' (errno=13)" [1]=> string(1) "#" [2]=> string(76) "# There is insufficient memory for the Java Runtime Environment to continue." [3]=> string(100) "# Native memory allocation (malloc) failed to allocate 2555904 bytes for committing reserved memory." [4]=> string(57) "# An error report file with more information is saved as:" [5]=> string(29) "# /tmp/jvm-26720/hs_error.log" }
我在控制台测试了cmd,这很正常.
[root@localhost ~]# java -version
java version "1.7.0_45"
OpenJDK Runtime Environment (rhel-2.4.3.3.el6-x86_64 u45-b15)
OpenJDK 64-Bit Server VM (build 24.45-b08, mixed mode)
有没有人可以帮我这个?
解决方法:
我有一个类似的问题.我在RedHat 7(安装在Amazon EC2上)上复制了它.
只有当selinux切换到许可模式时 – 问题才得以解决.
> Sudo或以root用户身份登录
>检查状态:$sestatus或$getenforce.
>要关闭它:
>临时:$setenforce 0.
>永久:编辑/ etc / selinux / config文件
经过深入研究后,看起来最好启用“apache使用内存”而不是关闭模式:
setsebool -P httpd_execmem 1
更多信息here.
标签:permission-denied,java,php,memory,exec 来源: https://codeday.me/bug/20191002/1841130.html