xtrabackup添加--slave-info参数全备失败， InnoDB: Operating system error number 2

[九月茅桃]

-- ==========================================
-- xtrabackup-1.6.5-328.rhel5.x86_64.rpm
-- ==========================================

-- 压缩备份
innobackupex --user=root --port=3306 --defaults-file=/etc/my.cnf --no-lock --socket=/data/mbdata/open/mysql.sock --no-timestamp --stream=tar /root/backup/full | gzip 1>/home/backup/full/alldb.tar.gz
-- ok，成功了。


-- 常规全备
innobackupex --user=root --port=3306 --defaults-file=/etc/my.cnf --slave-info --socket=/data/mbdata/open/mysql.sock --no-timestamp /home/backup/all
-- 常规备份
innobackupex --user=root --port=3306 --defaults-file=/etc/my.cnf --no-lock --socket=/data/mbdata/open/mysql.sock --no-timestamp /home/backup/all
两次失败了，失败信息如下：

报错如下：
120216 16:55:31 InnoDB: Operating system error number 24 in a file operation.
InnoDB: Error number 24 means 'Too many open files'.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html
InnoDB: File name /home/backup/all/bgopendb/fi_supplier_payables.ibd
InnoDB: File operation call: 'create'.
120216 16:55:31 InnoDB: Operating system error number 24 in a file operation.
InnoDB: Error number 24 means 'Too many open files'.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html
[01] xtrabackup: error: cannot open /home/backup/all/bgopendb/fi_supplier_payables.ibd
[01] xtrabackup: Error: xtrabackup_copy_datafile() failed.
[01] xtrabackup: Error: failed to copy datafile.
innobackupex: Error: ibbackup child process has died at /usr/bin/innobackupex line 349.

google了很久，一直没有找到原因所在，不知道--slave-info这个参数是不是就不能用呢？

[郑宏辉]

今天搜索看到你的情况，和我遇到的有点相似，我的问题是出在备份目录超出了大小

[rucypli]

这个参数当然可以用 我就用了这个参数备份 升级到新版本试试

[九月茅桃]

问题已经解决了！