XtraBackup fail to create backup

im trying to create backup using Xtrabackup tool but it failed to start the backup.
my DB size is about 6.5T.

innobackupex: Using mysql server version 5.5.30-30.2-log

130930 07:44:00 innobackupex: Starting ibbackup with command: xtrabackup_55 --defaults-group=“mysqld” --backup --suspend-at-end --target-dir=/mnt/dwh_mysql/2013-09-30_07-44-00 --tmpdir=/tmp
innobackupex: Waiting for ibbackup (pid=21137) to suspend
innobackupex: Suspend file ‘/mnt/dwh_mysql/2013-09-30_07-44-00/xtrabackup_suspended_2’

xtrabackup_55 version 2.1.3 for Percona Server 5.5.16 Linux (x86_64) (revision id: 608)
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /var/lib/mysql
xtrabackup: Target instance is assumed as followings.
xtrabackup: innodb_data_home_dir = /var/lib/mysql
xtrabackup: innodb_data_file_path = ibdata1:10M:autoextend
xtrabackup: innodb_log_group_home_dir = /var/lib/mysql
xtrabackup: innodb_log_files_in_group = 2
xtrabackup: innodb_log_file_size = 268435456
xtrabackup: using O_DIRECT
130930 7:44:01 InnoDB: Warning: allocated tablespace 48650, old maximum was 9
File size limit exceeded (core dumped)
innobackupex: Error: ibbackup child process has died at /usr/bin/innobackupex line 389.

does anyone know how to solve this?



Hi Ronnysh,

As per the error, you are exceeded OS file size limits. Can you check what is currently limit set at OS level with “ulimit -a” ? you can paste output here.
if it’s not enough then you can update it by changing limits in

hi niljoshi,
it looks like the server has no OS file limits.

core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
[COLOR=#FF0000]file size (blocks, -f) unlimited
pending signals (-i) 514945
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 514945
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Hi Ronny,

Looks like you could be hitting individual files size on filesystem/OS level. Can you please provide some more information like what OS and filesystem you are using? Is Innodb_file_per_table is ON? It could be also helpful if you can provide the output of “ls- alh” of your data dir. Thanks.