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Linux系统会出现inode节点用完的情况,导致服务器不能正常写入数据。我们先要理解inode,inode是索引节点,每个存储设备(例如硬盘)或存储设备的分区被格式化为文件系统后,应该有两部份,一部份是inode,另一部份是Block。Block是用来存储数据用的,而inode就是用来存储数据的信息,这些信息包括文件大小、属主、归属的用户组、读写权限等。
inode节点满的时候,参考以下处理方法:
方法一、清理文件
1、删除无用的临时文件,释放inode。
2、遍历寻找0字节的文件,并删除,参考以下命令。
查找/home目录下0字节文件并删除
find /home -type f -size 0 -exec rm {} \;
方法二、修改inode的数量(注意该方法会丢失磁盘数据,建议操作前备份数据)
1、卸载磁盘(本案例是有/dev/xvdb1)
umount /dev/xvdb1
2、查看修改前的磁盘inode的数量:
dumpe2fs -h /dev/xvdb1 |grep node
这里显示修改前inode数控是983040
3、修改inode的数量的命令:
mkfs.ext4 /dev/xvdb1 -N 9830400
4、查看修改后的磁盘inode的数量:
dumpe2fs -h /dev/xvdb1 |grep node
修改后的inode数量是9830400 说明修改成功了。