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泄漏文件描述符

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泄漏文件描述符

如果文件描述符泄漏意味着什么

 File descriptor 6 (socket:[901758]) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
 File descriptor 9 (/dev/pts/1) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
 File descriptor 11 (/dev/pts/1) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
 File descriptor 12 (/dev/pts/1) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
 File descriptor 15 (/dev/pts/7) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
 File descriptor 17 (/dev/pts/7) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
 File descriptor 18 (/dev/pts/7) leaked on lvextend invocation. Parent PID 10035: /bin/zsh
   Extending logical volume usr to 30.00 GiB
   Logical volume usr successfully resized

这是什么意思？

答案1

这些是设备上保持打开状态的文件描述符（您正在调整其大小）。

lvm(8) 说：

On invocation, lvm requires that only the standard file descriptors stdin, stdout
and stderr are available. If others are found, they get closed and messages
are issued warning about the leak.

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