Created
November 23, 2012 02:37
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my.cnf for galera
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[mysqld] | |
### mysql general option | |
bind-address = 0.0.0.0 | |
user = mysql | |
pid-file = /var/run/mysqld/mysqld.pid | |
socket = /var/run/mysqld/mysqld.sock | |
port = 3306 | |
basedir = /usr | |
datadir = /var/lib/mysql | |
tmpdir = /tmp | |
lc-messages-dir = /usr/share/mysql | |
skip-external-locking | |
### mysql optimization | |
# mandatory settings for galera | |
innodb_autoinc_lock_mode=2 | |
innodb_locks_unsafe_for_binlog=1 | |
# query cache is not supported with wsrep | |
query_cache_size=0 | |
query_cache_type=0 | |
# synchronous replication allows for some optimizations (this is not required): | |
innodb_flush_log_at_trx_commit=0 # or 2 | |
innodb_doublewrite=0 | |
#sync_binlog=0 | |
#innodb_flush_log_at_trx_commit=0 | |
max_connections=1024 | |
innodb_buffer_pool_size=400M | |
innodb_log_file_size=64M | |
key_buffer_size = 256M | |
max_allowed_packet = 32M | |
table_open_cache = 256 | |
sort_buffer_size = 2M | |
read_buffer_size = 2M | |
read_rnd_buffer_size = 4M | |
myisam_sort_buffer_size = 64M | |
thread_cache_size = 8 | |
query_cache_size= 32M | |
# Try number of CPU's*2 for thread_concurrency | |
thread_concurrency = 4 | |
#log_slave_updates | |
### galera settings | |
default_storage_engine=InnoDB | |
binlog_format=ROW | |
log_bin=mysql-bin | |
wsrep_cluster_name=libreit | |
wsrep_cluster_address=gcomm:// | |
wsrep_node_name=NAME | |
wsrep_sst_method=xtrabackup | |
wsrep_sst_auth=root:PASSWORD | |
wsrep_provider=/usr/lib/libgalera_smm.so | |
# how many threads to use for applying slave writsets - cpu core * 2 | |
wsrep_slave_threads=4 | |
# change auto_increment_increment and auto_increment_offset automatically | |
wsrep_auto_increment_control=1 | |
# enable "strictly synchronous" semantics for read operations | |
wsrep_causal_reads=0 | |
# retry autoinc insert, which failed for duplicate key error | |
wsrep_drupal_282555_workaround=1 | |
# Command to call when node status or cluster membership changes. | |
# Will be passed all or some of the following options: | |
# --status - new status of this node | |
# --uuid - UUID of the cluster | |
# --primary - whether the component is primary or not ("yes"/"no") | |
# --members - comma-separated list of members | |
# --index - index of this node in the list | |
#wsrep_notify_cmd= | |
# how many times to retry deadlocked autocommits | |
wsrep_retry_autocommit=2 |
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