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error in sst xtrabackup

pathetpathet ContributorInactive User Role Beginner
Hello,

I get some strange message when I want to perform a sst with xtrabackup.
The sst failes.
Get the latest version of Percona XtraBackup, documentation, and help resources:
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140728 15:09:23 innobackupex: Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_file=/etc/mysql/my.cnf;mysql_read_default_group=xtrabackup' as 'sst' (using password: YES).
140728 15:09:23 innobackupex: Connected to MySQL server
140728 15:09:23 innobackupex: Executing a version check against the server...
140728 15:09:23 innobackupex: Done.
IMPORTANT: Please check that the backup run completes successfully.
At the end of a successful backup run innobackupex
prints "completed OK!".

innobackupex: Using mysql server version 5.5.34

innobackupex: Created backup directory /tmp

140728 15:09:23 innobackupex: Starting ibbackup with command: xtrabackup_55 --defaults-file="/etc/mysql/my.c
nf" --defaults-group="mysqld" --backup --suspend-at-end --target-dir=/mnt/ramdisk --tmpdir=/mnt/ramdisk --stream=tar
innobackupex: Waiting for ibbackup (pid=31739) to suspend
innobackupex: Suspend file '/mnt/ramdisk/xtrabackup_suspended_2'

xtrabackup_55 version 2.1.8 for Percona Server 5.5.35 Linux (x86_64) (revision id: undefined)
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /var/lib/mysql
xtrabackup: using the following InnoDB configuration:
xtrabackup: innodb_data_home_dir = ./
xtrabackup: innodb_data_file_path = ibdata1:10M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 2
xtrabackup: innodb_log_file_size = 209715200
xtrabackup: using O_DIRECT
>> log scanned up to (4370789295766)
140728 15:09:23 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/5.5/en/operating-system-error-codes.html
InnoDB: Error: could not open single-table tablespace file
InnoDB: ./aswoconfig/sphinx_config_types.ibd!
InnoDB: We do not continue the crash recovery, because the table may become
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
InnoDB: To fix the problem and start mysqld:
InnoDB: 1) If there is a permission problem in the file and mysqld cannot
InnoDB: open the file, you should modify the permissions.
InnoDB: 2) If the table is not needed, or you can restore it from a backup,
InnoDB: then you can remove the .ibd file, and InnoDB will do a normal
InnoDB: crash recovery and ignore that table.
InnoDB: 3) If the file system or the disk is broken, and you cannot remove
InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf
InnoDB: and force InnoDB to continue crash recovery here.
innobackupex: Error: The xtrabackup child process has died at /usr//bin/innobackupex line 2622.
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Have someone a idea for me ?

regards
Patrick

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