Yep, without a way to reproduce the error it gets funnier :D BUT, I remembered something, this is a new installation of an old server and I got some similar errors in the past. I saved the old configuration and I have this: [mysqld] open_files_limit = 24000 This new server have the default open_files_limit config. MariaDB [(none)]> show global variables like 'open%'; +------------------+-------+ | Variable_name | Value | +------------------+-------+ | open_files_limit | 1024 | +------------------+-------+ 1 row in set (0.01 sec) MariaDB [(none)]> Maybe thats the problem... I think because the many files tokudb uses in my datadir. will increase and see what happens.. If you guys have any additional information that might help please let me know. [root@db1 ~]# ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 15057 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) 15057 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited Thanks! 7 de novembro de 2015 às 18:05, "Colin Charles" <colin@mariadb.org> escreveu:

...

On 8 Nov 2015, at 03:36, joao@7lan.net wrote:

Sometimes, my mysqld daemon begin to consumes 100% the connection to the server gets unstable and I get flooded in the mysql error log with these messages:

Nov 4 06:17:01 db1 mysqld: 2015-11-04 6:17:01 140682979031168 [ERROR] Error in accept: Bad file descriptor

Sometimes, is a problem ;-) Its much better if we can always repeat it

what is open_files_limit set to in my.cnf? also what is the ulimit set at? -- Colin Charles, Chief Evangelist, MariaDB Corporation blog: http://bytebot.net/blog | t: +1-347-903-3201 | Skype: colincharles | Twitter: @bytebot

On 8 Nov 2015, at 04:19, joao@7lan.net wrote:

Yep, without a way to reproduce the error it gets funnier :D

BUT, I remembered something, this is a new installation of an old server and I got some similar errors in the past.

I saved the old configuration and I have this:

[mysqld]

open_files_limit = 24000

This new server have the default open_files_limit config.

MariaDB [(none)]> show global variables like 'open%'; +------------------+-------+ | Variable_name | Value | +------------------+-------+ | open_files_limit | 1024 | +------------------+-------+ 1 row in set (0.01 sec)

MariaDB [(none)]>

Maybe thats the problem... I think because the many files tokudb uses in my datadir.

will increase and see what happens.. If you guys have any additional information that might help please let me know.

also worth noting: https://mariadb.atlassian.net/browse/MDEV-8995 -- Colin Charles, Chief Evangelist, MariaDB Corporation blog: http://bytebot.net/blog/ | t: +1-347-903-3201 | Skype: colincharles | Twitter: @bytebot