percona-xtradb-cluster 部署笔记
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个人部署PXC集群的相关配置过程及注意事项总结:
1、环境为3台虚拟机centos6.5系统:
192.168.220.160
192.168.220.161
192.168.220.162
2、安装步骤:
下载并安装软件包percona-release-0.1-4.noarch.rpm
通过yum安装Percona-XtraDB-Cluster-server-56(相应一些依赖分支会提示一起安装,输入y即可)
可能会报错提示安装依赖包,按提示安装对应依赖包即可
3、配置:
由于本次部署实在三台虚拟机,配置相对较低,所以配置文件相关参数相应调低或去掉,生产环境可根据情况调高。
用mkdir -p +路径 命令创建下面配置文件出现的目录(原来可能不存在)
并用chown -R mysql:mysql +路径 对其授权
下面两个值根据实际情况设置,3个节点需要设置成不同的值:
server_id=
wsrep_node_address
配置文件如下:
/etc/my.cnf
[client]port = 3307default-character-set = utf8socket = /var/lib/mysql/mysql.sock[mysqld]# GENERAL #user = mysqldefault-storage-engine = InnoDBskip_name_resolvecharacter-set-server = utf8datadir = /var/lib/mysqlsocket = /var/lib/mysql/mysql.sockpid_file = /var/lib/mysql/mysql.pidport= 3307lower_case_table_names= 1explicit_defaults_for_timestamp = truesymbolic-links = 0large_pages = ON# MyISAM ## SAFETY #max_connect_errors = 1000000skip_name_resolve# BINARY LOGGING #log-bin =/data/mysql/binlog/mysql-binexpire-logs-days = 30sync-binlog = 0binlog_cache_size = 32Mmax_binlog_cache_size = 512M max_binlog_size = 512Mslave_skip_errors = 1032,1062,126,1114,1146,1048,1396log-slave-updates = 1# REPLICATION #relay-log =/opt/mysql/binlog/relay-binslave-net-timeout = 60 # CACHES AND LIMITS #tmp_table_size = 250Mmax_heap_table_size = 250Mquery_cache_type = 0query_cache_size = 0max_connections = 3000back_log = 10240thread_cache_size = 5000open_files_limit = 20480table_definition_cache = 4096table_open_cache = 6000table_open_cache_instances = 16sort_buffer_size = 32Mmax_length_for_sort_data = 10240join_buffer_size = 32Mread_rnd_buffer_size = 32M # INNODB ##transaction_isolation = REPEATABLE-READtransaction_isolation = READ-COMMITTED #init_connect='SET autocommit=0'init_connect='insert into db_monitor.accesslog(thread_id,log_time,localname,matchname) values(connection_id(),now(),user(),current_user());'#wait_timeout=100#interactive_timeout=100 # LOGGING #log_error =/var/lib/mysql/mysql-error.loglog_queries_not_using_indexes = 0slow_query_log = 1slow_query_log_file = /var/lib/mysql/mysql-slow.loglong_query_time= 0.5 # thread poolthread_handling = pool-of-threadsthread_pool_oversubscribe = 10 #config for wsrepserver_id=4wsrep_provider=/usr/lib64/libgalera_smm.sowsrep_cluster_address=gcomm://192.168.220.160,192.168.220.161,192.168.220.162binlog_format=ROWdefault_storage_engine=InnoDBinnodb_locks_unsafe_for_binlog=1innodb_autoinc_lock_mode=2wsrep_node_address=192.168.220.160wsrep_sst_method=xtrabackup-v2wsrep_cluster_name=my_mysql_clusterwsrep_sst_auth="sstuser:s3cret"wsrep_slave_threads=2wsrep_provider_options='gcs.max_packet_size=10485760;gcache.size=2147483648'wsrep_max_ws_rows=1048576wsrep_max_ws_size=2147483648#config for otherssql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
4、启动及验证:
由于第一次启动, 首先启动第一节点/etc/init.d/mysql bootstrap-px 接着另外两个节点/etc/init.d/mysql start
mysql> show status like '%wsrep%';+------------------------------+----------------------------------------------------------------+| Variable_name | Value |+------------------------------+----------------------------------------------------------------+| wsrep_local_state_uuid | 7afea44d-979b-11e7-a99a-8ed9d6280c37 || wsrep_protocol_version | 7 || wsrep_last_committed | 3 || wsrep_replicated | 0 || wsrep_replicated_bytes | 0 || wsrep_repl_keys | 0 || wsrep_repl_keys_bytes | 0 || wsrep_repl_data_bytes | 0 || wsrep_repl_other_bytes | 0 || wsrep_received | 4 || wsrep_received_bytes | 728 || wsrep_local_commits | 0 || wsrep_local_cert_failures | 0 || wsrep_local_replays | 0 || wsrep_local_send_queue | 0 || wsrep_local_send_queue_max | 1 || wsrep_local_send_queue_min | 0 || wsrep_local_send_queue_avg | 0.000000 || wsrep_local_recv_queue | 0 || wsrep_local_recv_queue_max | 2 || wsrep_local_recv_queue_min | 0 || wsrep_local_recv_queue_avg | 0.250000 || wsrep_local_cached_downto | 0 || wsrep_flow_control_paused_ns | 0 || wsrep_flow_control_paused | 0.000000 || wsrep_flow_control_sent | 0 || wsrep_flow_control_recv | 0 || wsrep_cert_deps_distance | 0.000000 || wsrep_apply_oooe | 0.000000 || wsrep_apply_oool | 0.000000 || wsrep_apply_window | 0.000000 || wsrep_commit_oooe | 0.000000 || wsrep_commit_oool | 0.000000 || wsrep_commit_window | 0.000000 || wsrep_local_state | 4 || wsrep_local_state_comment | Synced || wsrep_cert_index_size | 0 || wsrep_cert_bucket_count | 22 || wsrep_gcache_pool_size | 1320 || wsrep_causal_reads | 0 || wsrep_cert_interval | 0.000000 || wsrep_incoming_addresses | 192.168.220.160:3307,192.168.220.161:3307,192.168.220.162:3307 || wsrep_desync_count | 0 || wsrep_evs_delayed | || wsrep_evs_evict_list | || wsrep_evs_repl_latency | 0.00166187/0.00451718/0.0104513/0.00354648/4 || wsrep_evs_state | OPERATIONAL || wsrep_gcomm_uuid | 5398f7f7-97a2-11e7-80ad-5a153937fe9d || wsrep_cluster_conf_id | 3 || wsrep_cluster_size | 3 || wsrep_cluster_state_uuid | 7afea44d-979b-11e7-a99a-8ed9d6280c37 || wsrep_cluster_status | Primary || wsrep_connected | ON || wsrep_local_bf_aborts | 0 || wsrep_local_index | 0 || wsrep_provider_name | Galera || wsrep_provider_vendor | Codership Oy|| wsrep_provider_version | 3.20(r7e383f7) || wsrep_ready | ON |+------------------------------+----------------------------------------------------------------+
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