PXC 5.7.14 安装部署

Posted 2020-11-01 裸奔的小鸵鸟

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http://www.dbhelp.net/2017/01/06/pxc-5-7-14-%E5%AE%89%E8%A3%85%E9%83%A8%E7%BD%B2-pxc-install.html

PXC是Percona XtraDB Cluster的缩写，是一种具有高可用性和高扩展性的mysql开源集群。它集成了Percona Server和Percona XtraBackup，同时采用了Codership Galera库。

常见的PXC架构如下，

PXC架构

下面，开始安装PXC 5.7.14

一、环境说明

主机

# PXC #

10.9.15.111 pxc1

10.9.15.112 pxc2

10.9.15.113 pxc3

OS : CentOS release 6.5 (Final)

二、安装 Percona-XtraDB-Cluster

1、卸载CentOS 自带的mysql-libs包

1	rpm -qa \| grep -i mysql \| xargs sudo rpm -e --nodeps

2、所有节点安装依赖包

libev-4.03-3.el6.x86_64.rpm

socat-1.7.2.3-1.el6.x86_64.rpm

Percona-XtraDB-Cluster-shared-57-5.7.14-26.17.1.el6.x86_64.rpm

Percona-XtraDB-Cluster-server-57-5.7.14-26.17.1.el6.x86_64.rpm

Percona-XtraDB-Cluster-client-57-5.7.14-26.17.1.el6.x86_64.rpm

Percona-XtraDB-Cluster-57-5.7.14-26.17.1.el6.x86_64.rpm

percona-xtrabackup-24-2.4.4-1.el6.x86_64.rpm

所有节点安装软件包的步骤

yum -y install perl-Time-HiRes

yum install –y perl-DBD-MySQL.x86_64 perl-IO-Socket-SSL.noarch nc

yum localinstall libev-4.03-3.el6.x86_64.rpm

yum localinstall socat-1.7.2.3-1.el6.x86_64.rpm

yum localinstall Percona-XtraDB-Cluster-client-57-5.7.14-26.17.1.el6.x86_64.rpm

yum localinstall Percona-XtraDB-Cluster-shared-57-5.7.14-26.17.1.el6.x86_64.rpm

yum localinstall percona-xtrabackup-24-2.4.4-1.el6.x86_64.rpm

yum localinstall Percona-XtraDB-Cluster-server-57-5.7.14-26.17.1.el6.x86_64.rpm

yum localinstall Percona-XtraDB-Cluster-57-5.7.14-26.17.1.el6.x86_64.rpm

3、所有节点创建mysql组和用户

1 2	# groupadd mysql # useradd -r -g mysql -s /bin/false mysql

4、创建相关目录

1 2	# mkdir /data/mysql/{data,logs,tmp} -p # chown mysql.mysql /data/ -R

5、配置my.cnf文件

find / -name ‘my-default.cnf‘

/usr/share/doc/Percona-XtraDB-Cluster-server-57-5.7.14/my-default.cnf

/usr/share/percona-xtradb-cluster/my-default.cnf

拷贝到/etc/my.cnf

1	cp /usr/share/percona-xtradb-cluster/my-default.cnf /etc/my.cnf

编辑my.cnf
@第一节点 pxc1

[mysqld]

user = mysql

innodb_buffer_pool_size = 1024M

datadir = /data/mysql/data

port = 3306

server_id = 3306111

socket = /data/mysql/mysql.sock

pid-file = /data/mysql/logs/mysql.pid

log-error = /data/mysql/logs/error.log

log_warnings = 2

slow_query_log_file = /data/mysql/logs/slow.log

long_query_time = 0.1

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

## pxc variables ##

# Path to Galera library

wsrep_provider=/usr/lib64/libgalera_smm.so

# Cluster connection URL contains the IPs of node#1, node#2 and node#3

wsrep_cluster_address=gcomm://10.9.15.111,10.9.15.112,10.9.15.113

# In order for Galera to work correctly binlog format should be ROW

binlog_format=ROW

# MyISAM storage engine has only experimental support

default_storage_engine=InnoDB

# This InnoDB autoincrement locking mode is a requirement for Galera

innodb_autoinc_lock_mode=2

# Node name

wsrep_node_name = pxc1

# Node 1 address

wsrep_node_address=10.9.15.111

# SST method

wsrep_sst_method=xtrabackup-v2

# Cluster name

wsrep_cluster_name=my-pxc-test

# Authentication for SST method

wsrep_sst_auth="sstuser:sstuser"

@第二节点 pxc2
注意修改 server_id 、wsrep_node_name 、 wsrep_node_address

[mysqld]

user = mysql

innodb_buffer_pool_size = 1024M

datadir = /data/mysql/data

port = 3306

server_id = 3306112

socket = /data/mysql/mysql.sock

pid-file = /data/mysql/logs/mysql.pid

log-error = /data/mysql/logs/error.log

log_warnings = 2

slow_query_log_file = /data/mysql/logs/slow.log

long_query_time = 0.1

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

## pxc variables ##

# Path to Galera library

wsrep_provider=/usr/lib64/libgalera_smm.so

# Cluster connection URL contains the IPs of node#1, node#2 and node#3

wsrep_cluster_address=gcomm://10.9.15.111,10.9.15.112,10.9.15.113

# In order for Galera to work correctly binlog format should be ROW

binlog_format=ROW

# MyISAM storage engine has only experimental support

default_storage_engine=InnoDB

# This InnoDB autoincrement locking mode is a requirement for Galera

innodb_autoinc_lock_mode=2

# Node name

wsrep_node_name = pxc2

# Node 1 address

wsrep_node_address=10.9.15.112

# SST method

wsrep_sst_method=xtrabackup-v2

# Cluster name

wsrep_cluster_name=my-pxc-test

# Authentication for SST method

wsrep_sst_auth="sstuser:sstuser"

@第三节点 pxc3
注意修改 server_id 、wsrep_node_name 、 wsrep_node_address

[mysqld]

user = mysql

innodb_buffer_pool_size = 1024M

datadir = /data/mysql/data

port = 3306

server_id = 3306113

socket = /data/mysql/mysql.sock

pid-file = /data/mysql/logs/mysql.pid

log-error = /data/mysql/logs/error.log

log_warnings = 2

slow_query_log_file = /data/mysql/logs/slow.log

long_query_time = 0.1

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

## pxc variables ##

# Path to Galera library

wsrep_provider=/usr/lib64/libgalera_smm.so

# Cluster connection URL contains the IPs of node#1, node#2 and node#3

wsrep_cluster_address=gcomm://10.9.15.111,10.9.15.112,10.9.15.113

# In order for Galera to work correctly binlog format should be ROW

binlog_format=ROW

# MyISAM storage engine has only experimental support

default_storage_engine=InnoDB

# This InnoDB autoincrement locking mode is a requirement for Galera

innodb_autoinc_lock_mode=2

# Node name

wsrep_node_name = pxc3

# Node 1 address

wsrep_node_address=10.9.15.113

# SST method

wsrep_sst_method=xtrabackup-v2

# Cluster name

wsrep_cluster_name=my-pxc-test

# Authentication for SST method

wsrep_sst_auth="sstuser:sstuser"

三、启动PXC

1、启动第一节点

# /etc/init.d/mysql bootstrap-pxc

Bootstrapping PXC (Percona XtraDB Cluster)Initializing MySQ[ OK ]se:

Starting MySQL (Percona XtraDB Cluster).. [ OK ]

查看进程是否启动

# ps -ef|grep mysql

root 9410 1 0 14:06 pts/0 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/data/mysql/data --pid-file=/data/mysql/logs/mysql.pid --wsrep-new-cluster

mysql 9788 9410 2 14:06 pts/0 00:00:02 /usr/sbin/mysqld --basedir=/usr --datadir=/data/mysql/data --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --wsrep-provider=/usr/lib64/libgalera_smm.so --wsrep-new-cluster --log-error=/data/mysql/logs/error.log --pid-file=/data/mysql/logs/mysql.pid --socket=/data/mysql/mysql.sock --port=3306 --wsrep_start_position=00000000-0000-0000-0000-000000000000:-1

查看错误日志信息

".err" 372L, 35184C 195,1 52%

last_appl. = -1,

protocols = 0/7/3 (gcs/repl/appl),

group UUID = f4a3595a-9b40-11e6-ad57-c622a8ebb29a

2016-10-26T05:56:36.594604Z 0 [Note] WSREP: Flow-control interval: [16, 16]

2016-10-26T05:56:36.594609Z 0 [Note] WSREP: Restored state OPEN -> JOINED (0)

2016-10-26T05:56:36.594630Z 0 [Note] WSREP: Member 0.0 (pxc1) synced with group.

2016-10-26T05:56:36.594636Z 0 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 0)

2016-10-26T05:56:36.594660Z 2 [Note] WSREP: New cluster view: global state: f4a3595a-9b40-11e6-ad57-c622a8ebb29a:0, view# 1: Primary, number of nodes: 1, my index: 0, protocol version 3

2016-10-26T05:56:36.594698Z 0 [Note] WSREP: SST complete, seqno: 0

2016-10-26T05:56:36.595680Z 0 [Note] InnoDB: PUNCH HOLE support available

2016-10-26T05:56:36.595692Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins

2016-10-26T05:56:36.595698Z 0 [Note] InnoDB: Uses event mutexes

2016-10-26T05:56:36.595702Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier

2016-10-26T05:56:36.595707Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3

2016-10-26T05:56:36.595711Z 0 [Note] InnoDB: Using Linux native AIO

2016-10-26T05:56:36.595967Z 0 [Note] InnoDB: Number of pools: 1

2016-10-26T05:56:36.596092Z 0 [Note] InnoDB: Using CPU crc32 instructions

2016-10-26T05:56:36.597310Z 0 [Note] InnoDB: Initializing buffer pool, total size = 1G, instances = 8, chunk size = 128M

2016-10-26T05:56:36.620596Z 0 [Note] InnoDB: Completed initialization of buffer pool

2016-10-26T05:56:36.627552Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().

2016-10-26T05:56:36.628969Z 0 [Note] InnoDB: Crash recovery did not find the parallel doublewrite buffer at /data/mysql/data/xb_doublewrite

2016-10-26T05:56:36.629545Z 0 [Note] InnoDB: Highest supported file format is Barracuda.

2016-10-26T05:56:37.375510Z 0 [Note] InnoDB: Created parallel doublewrite buffer at /data/mysql/data/xb_doublewrite, size 31457280 bytes

2016-10-26T05:56:37.385112Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables

2016-10-26T05:56:37.385168Z 0 [Note] InnoDB: Setting file ‘./ibtmp1‘ size to 12 MB. Physically writing the file full; Please wait ...

2016-10-26T05:56:37.575501Z 0 [Note] InnoDB: File ‘./ibtmp1‘ size is now 12 MB.

2016-10-26T05:56:37.576818Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.

2016-10-26T05:56:37.576867Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.

2016-10-26T05:56:37.578343Z 0 [Note] InnoDB: Waiting for purge to start

2016-10-26T05:56:37.628499Z 0 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.7.14-8 started; log sequence number 2491156

2016-10-26T05:56:37.628805Z 0 [Note] InnoDB: Loading buffer pool(s) from /data/mysql/data/ib_buffer_pool

2016-10-26T05:56:37.629037Z 0 [Note] Plugin ‘FEDERATED‘ is disabled.

2016-10-26T05:56:37.630587Z 0 [Note] InnoDB: Buffer pool(s) load completed at 161026 13:56:37

2016-10-26T05:56:37.632355Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.

2016-10-26T05:56:37.632379Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.

2016-10-26T05:56:37.642032Z 0 [Warning] CA certificate ca.pem is self signed.

2016-10-26T05:56:37.642143Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.

2016-10-26T05:56:37.642230Z 0 [Note] Server hostname (bind-address): ‘*‘; port: 3306

2016-10-26T05:56:37.642285Z 0 [Note] IPv6 is available.

2016-10-26T05:56:37.642295Z 0 [Note] - ‘::‘ resolves to ‘::‘;

2016-10-26T05:56:37.642309Z 0 [Note] Server socket created on IP: ‘::‘.

2016-10-26T05:56:37.649657Z 0 [Note] Event Scheduler: Loaded 0 events

2016-10-26T05:56:37.650070Z 0 [Note] /usr/sbin/mysqld: ready for connections.

Version: ‘5.7.14-8-57‘ socket: ‘/data/mysql/mysql.sock‘ port: 3306 Percona XtraDB Cluster (GPL), Release rel8, Revision a3f9d06, WSREP version 26.17, wsrep_26.17

2016-10-26T05:56:37.651418Z 2 [Note] WSREP: Initialized wsrep sidno 2

2016-10-26T05:56:37.651445Z 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.

2016-10-26T05:56:37.651468Z 2 [Note] WSREP: REPL Protocols: 7 (3, 2)

2016-10-26T05:56:37.651492Z 0 [Note] WSREP: Service thread queue flushed.

2016-10-26T05:56:37.651515Z 2 [Note] WSREP: Assign initial position for certification: 0, protocol version: 3

2016-10-26T05:56:37.651534Z 0 [Note] WSREP: Service thread queue flushed.

2016-10-26T05:56:37.651599Z 2 [Note] WSREP: Synchronized with group, ready for connections

2016-10-26T05:56:37.651609Z 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.

去error.log日志搜索关键字password找到默认root密码，登录后修改

1	alter user ‘root‘@‘localhost‘ idnetified by ‘123456‘;

第一节点启动后，检查cluster的状态。
当前第一节点是Primary。

mysql> show status like ‘%wsrep%‘;

+------------------------------+--------------------------------------+

| Variable_name | Value |

+------------------------------+--------------------------------------+

| wsrep_local_state_uuid | 57a3ecf4-9b42-11e6-bc43-03970944486f |

| wsrep_protocol_version | 7 |

| wsrep_last_committed | 0 |

| wsrep_replicated | 0 |

| wsrep_replicated_bytes | 0 |

...

| wsrep_repl_other_bytes | 0 |

| wsrep_received | 21 |

| wsrep_received_bytes | 2021 |

| wsrep_local_commits | 0 |

| wsrep_local_state_comment | Synced |

...

| 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 <info@codership.com> |

| wsrep_provider_version | 3.17(r447d194) |

| wsrep_ready | ON |

+------------------------------+--------------------------------------+

59 rows in set (0.00 sec)

第一节点创建后，其他节点初始化，需要使用xtrabackup工具来备份，然后恢复。
所以，需要创建一个用户用于备份。

mysql> CREATE USER ‘sstuser‘@‘localhost‘ IDENTIFIED BY ‘sstuser‘;

mysql> GRANT RELOAD, LOCK TABLES, REPLICATION CLIENT, PROCESS ON *.* TO ‘sstuser‘@‘localhost‘; # 注意，官方文档中少了 PROCESS 权限

mysql> FLUSH PRIVILEGES;

验证sstuser登录

1	# mysql -usstuser -psstuser -S /data/mysql/mysql.sock -e ‘show databases‘

启动第二节点

1	# /etc/init.d/mysql start

确认第二节点的状态

mysql> show status like ‘wsrep%‘;

+------------------------------+--------------------------------------+

| Variable_name | Value |

+------------------------------+--------------------------------------+

| wsrep_local_state_uuid | 57a3ecf4-9b42-11e6-bc43-03970944486f |

| wsrep_protocol_version | 7 |

| wsrep_last_committed | 5 |

| 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 | 3 |

| wsrep_received_bytes | 214 |

| 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 | 1 |

| wsrep_local_recv_queue_min | 0 |

| wsrep_local_recv_queue_avg | 0.000000 |

| 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 | 1450 |

| wsrep_causal_reads | 0 |

| wsrep_cert_interval | 0.000000 |

| wsrep_incoming_addresses | 10.9.15.111:3306,10.9.15.112:3306 |

| wsrep_desync_count | 0 |

| wsrep_evs_delayed | |

| wsrep_evs_evict_list | |

| wsrep_evs_repl_latency | 0/0/0/0/0 |

| wsrep_evs_state | OPERATIONAL |

| wsrep_gcomm_uuid | 622855c9-9b55-11e6-87b1-3bdafc7edcfd |

| wsrep_cluster_conf_id | 10 |

| wsrep_cluster_size | 2 |

| wsrep_cluster_state_uuid | 57a3ecf4-9b42-11e6-bc43-03970944486f |

| wsrep_cluster_status | Primary |

| wsrep_connected | ON |

| wsrep_local_bf_aborts | 0 |

| wsrep_local_index | 1 |

| wsrep_provider_name | Galera |

| wsrep_provider_vendor | Codership Oy <info@codership.com> |

| wsrep_provider_version | 3.17(r447d194) |

| wsrep_ready | ON |

+------------------------------+--------------------------------------+

59 rows in set (0.00 sec)

启动第三节点

1	# /etc/init.d/mysql start

确定状态

mysql> show status like ‘%wsrep%‘;

+------------------------------+----------------------------------------------------+

| Variable_name | Value |

+------------------------------+----------------------------------------------------+

| wsrep_local_state_uuid | 57a3ecf4-9b42-11e6-bc43-03970944486f |

| wsrep_protocol_version | 7 |

| wsrep_last_committed | 5 |

| 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 | 3 |

| wsrep_received_bytes | 281 |

| 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 | 1 |

| wsrep_local_recv_queue_min | 0 |

| wsrep_local_recv_queue_avg | 0.000000 |

| 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 | 1450 |

| wsrep_causal_reads | 0 |

| wsrep_cert_interval | 0.000000 |

| wsrep_incoming_addresses | 10.9.15.111:3306,10.9.15.113:3306,10.9.15.112:3306 |

| wsrep_desync_count | 0 |

| wsrep_evs_delayed | |

| wsrep_evs_evict_list | |

| wsrep_evs_repl_latency | 0/0/0/0/0 |

| wsrep_evs_state | OPERATIONAL |

| wsrep_gcomm_uuid | 55ebc909-9b56-11e6-9867-1361f4f94504 |

| wsrep_cluster_conf_id | 11 |

| wsrep_cluster_size | 3 |

| wsrep_cluster_state_uuid | 57a3ecf4-9b42-11e6-bc43-03970944486f |

| wsrep_cluster_status | Primary |

| wsrep_connected | ON |

| wsrep_local_bf_aborts | 0 |

| wsrep_local_index | 1 |

| wsrep_provider_name | Galera |

| wsrep_provider_vendor | Codership Oy <info@codership.com> |

| wsrep_provider_version | 3.17(r447d194) |

| wsrep_ready | ON |

+------------------------------+----------------------------------------------------+

59 rows in set (0.00 sec)

至此，PXC安装启动完毕。

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MySQL高可用方案－PXC(Percona XtraDB Cluster)环境部署详解