--log-bin-trust-function-creators=1 on haproxy / three node percona master-master cluster -> safe?

[Denny Fuchs]

hi,

one of our web applikation (I-DOIT) wants to create a function:

Database error : Query error: '
CREATE FUNCTION alphas(str CHAR(100)) RETURNS CHAR(100) DETERMINISTIC READS SQL DATA
BEGIN
DECLARE i, len SMALLINT DEFAULT 1;
DECLARE ret CHAR(100) DEFAULT '';
DECLARE c CHAR(1);
SET len = CHAR_LENGTH( str );
REPEAT
BEGIN
SET c = MID( str, i, 1 );
IF c REGEXP '[[:alpha:]]' THEN
SET ret=CONCAT(ret,c);
END IF;
SET i = i + 1;
END;
UNTIL i > len END REPEAT;
RETURN ret;
END':
You do not have the SUPER privilege and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)

is it save to enable the variable on all nodes? The application connects via HAproxy the cluster (roundrobin).

===============================
[...]
[mysqld]

# GENERAL #
port                   = 3306
user                           = mysql
default-storage-engine         = InnoDB
socket                         = /var/lib/mysql/mysql.sock
pid-file                       = /var/lib/mysql/mysql.pid
# MUST DO UTF8 #
collation-server = utf8_unicode_ci
character-set-server = utf8
init_connect = 'SET NAMES utf8, collation_connection=utf8_unicode_ci'

# MyISAM #
key-buffer-size                = 32M
myisam-recover                 = FORCE,BACKUP

# SAFETY #
max-allowed-packet             = 25M
max-connect-errors             = 1000000
skip-name-resolve
#sql-mode                       = ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_DATE,NO_ZERO_IN_DATE,ONLY_FULL_GROUP_BY
sql-mode            = NO_ENGINE_SUBSTITUTION
# dekativiert, wegen i-doit
innodb-strict-mode             = 0

# DATA STORAGE #
datadir                        = /var/lib/mysql/

# BINARY LOGGING #
binlog_format            = ROW
log-bin                        = /var/lib/mysql/mysql-bin
expire-logs-days               = 2
max_binlog_size               = 100M
sync-binlog                    = 1

# CACHES AND LIMITS #
tmp-table-size                 = 32M
max-heap-table-size            = 32M
query-cache-type               = 0
query-cache-size               = 0
max-connections                = 500
thread-cache-size              = 50
open-files-limit               = 65535
table-definition-cache         = 4096
table-open-cache               = 4096

# INNODB #
innodb-flush-method            = O_DIRECT
innodb-log-files-in-group      = 2
innodb-log-file-size           = 256M
innodb-flush-log-at-trx-commit = 1
innodb-file-per-table          = 1
innodb-buffer-pool-size        = 6G
innodb_autoinc_lock_mode    = 2

# LOGGING #
log-error                      = /var/lib/mysql/mysql-error.log
log-queries-not-using-indexes  = 1
slow-query-log                 = 1
slow-query-log-file            = /var/lib/mysql/mysql-slow.log

# Cluster Configuration #
wsrep_provider            = /usr/lib/galera2/libgalera_smm.so
wsrep_provider_options        = "pc.ignore_sb = yes; gcache.size=2G; gcache.page_size=1G"
wsrep_cluster_name        = "XtraDB_Cluster"
wsrep_sst_method        = xtrabackup-v2
wsrep_slave_threads        = 16
wsrep_sst_auth            = "sstuser:secret"
wsrep_cluster_address        = "gcomm://......"

[sst]
streamfmt            = xbstream

!includedir            /etc/mysql/conf.d/
==================================


cu denny