源码部署pxc集群

想了想还是研究一下怎么源码安装pxc吧，毕竟很多组件都是源码安装的。

环境：

yum install -y boost-devel  libodb-boost-devel  check-devel openssl-devel libaio-devel 

安装scons

需要2.7+ 的Python
wget https://nchc.dl.sourceforge.net/project/scons/scons/3.0.1/scons-3.0.1.tar.gz
tar xf scons-3.0.1.tar.gz 
cd scons-3.0.1
python setup.py install  

安装 Percona-XtraDB-Cluster：

tcmalloc 安装忽略，mysql用户创建忽略

wget ftp://ftp.pbone.net/mirror/apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/socat-1.7.2.4-1.el6.rf.x86_64.rpm 
rpm -ich socat-1.7.2.4-1.el6.rf.x86_64.rpm  

wget ftp://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/rudi_m:/devel-snap/CentOS_CentOS-6/x86_64/libev4-4.15-7.1.x86_64.rpm 
rpm -ich libev4-4.15-7.1.x86_64.rpm 

wget ftp://ftp.pbone.net/mirror/ftp.centos.org/6.9/os/x86_64/Packages/numactl-2.0.9-2.el6.x86_64.rpm && rpm -ivh numactl-2.0.9-2.el6.x86_64.rpm 

wget ftp://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/viliampucik:/obs/RedHat_RHEL-6/x86_64/compat-readline5-5.2-17.4.x86_64.rpm 
rpm -ivh compat-readline5-5.2-17.4.x86_64.rpm

wget https://repo.percona.com/release/centos/6Server/RPMS/x86_64/percona-xtrabackup-24-2.4.8-1.el6.x86_64.rpm
rpm -ivh percona-xtrabackup-24-2.4.8-1.el6.x86_64.rpm 

安装libgalera_smm.so

wget https://www.percona.com/downloads/Percona-XtraDB-Cluster-57/Percona-XtraDB-Cluster-5.7.19-29.22/source/tarball/Percona-XtraDB-Cluster-5.7.19-29.22.tar.gz
tar xf Percona-XtraDB-Cluster-5.7.19-29.22.tar.gz
cd Percona-XtraDB-Cluster-5.7.19-29.22/percona-xtradb-cluster-galera/
scons -j4 psi=1 --config=force   revno=    libgalera_smm.so

之后，当前目录下就有一个libgalera_smm.so文件

安装pxc

#将boost_1_59_0.tar.gz放到源码包当前目录，cmake过程会自动加压
cd ../
cp /dist/dist/boost_1_59_0.tar.gz .
mkdir build
cd build/
CHOST="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe" CXXFLAGS="-march=nocona -O2 -pipe" \
 cmake ../  \
 -DMYSQL_USER=mysql \
 -DCMAKE_BUILD_TYPE:STRING=Release \
 -DBUILD_CONFIG=mysql_release \
 -DWITH_EMBEDDED_SERVER=OFF \
 -DFEATURE_SET=community \
 -DENABLE_DTRACE=OFF \
 -DWITH_SSL=system \
 -DWITH_ZLIB=system  \
 -DCMAKE_INSTALL_PREFIX=/usr/local/Percona-XtraDB-Cluster\
 -DMYSQL_SERVER_SUFFIX=-29.22 \
 -DWITH_INNODB_DISALLOW_WRITES=ON \
 -DWITH_WSREP=ON \
 -DWITH_UNIT_TESTS=0 \
 -DWITH_READLINE=system \
 -DWITHOUT_TOKUDB=ON \
 -DWITHOUT_ROCKSDB=ON \
 -DWITH_PAM=ON \
 -DWITH_INNODB_MEMCACHED=ON \
 -DDOWNLOAD_BOOST=1 \
 -DWITH_BOOST=..\
 -DWITH_SCALABILITY_METRICS=ON \
 -DCMAKE_EXE_LINKER_FLAGS="-ltcmalloc" \
 -DWITH_SAFEMALLOC=OFF  \
make -j $CPUcount
make install

#将libgalera_smm.so复制到basedir的lib目录中，或者可以再mysql实例的配置文件中指定文件位置也行
cd ../
cp percona-xtradb-cluster-galera/libgalera_smm.so /usr/local/Percona-XtraDB-Cluster/lib/

到目前为止，pxc的一个实例就安装好了。剩下的就是按套路配置启动了。

配置

#一定要让path变量能找得到pxc实例的二进制文件和相关脚本
ln -sv /usr/local/Percona-XtraDB-Cluster/bin/* /usr/local/bin/  

mkdir -p /data/database/pxc3306
chown mysql:mysql -R /data/database/pxc3306

#让mysqld支持tcmalloc
cd /usr/local/Percona-XtraDB-Cluster
sed -i '/Initialize script globals/ a export LD_PRELOAD=/usr/local/lib/libtcmalloc.so' bin/mysqld_safe

# 配置文件：
[client]
port=3306
socket = /tmp/pxc3306.sock

[mysqld]
server-id=1
port=3306
datadir=/data/database/pxc3306
basedir=/usr/local/Percona-XtraDB-Cluster
socket = /tmp/pxc3306.sock
log-error=/data/database/pxc3306/pxc3306.log
pid-file=/data/database/pxc3306/pxc3306.pid
user=mysql

# General
back_log=2000
connect_timeout=15
skip_name_resolve=ON
max_connections=5000
table_definition_cache=2000
table_open_cache=10000
metadata_locks_hash_instances=256
ssl=0
core_file

# Innodb
innodb_buffer_pool_size = 10240M
innodb_buffer_pool_instances=8
innodb_log_file_size = 1024M
innodb_log_buffer_size = 16M
innodb_lock_wait_timeout = 20
innodb_autoinc_lock_mode=2
innodb_read_io_threads = 5
innodb_write_io_threads = 5
innodb_thread_concurrency = 8
innodb_doublewrite=1
innodb_flush_log_at_trx_commit = 2
innodb_flush_method = 'O_DIRECT'
innodb-page-cleaners=8
innodb_purge_threads=4
innodb_lru_scan_depth=2048
innodb_io_capacity=8000
innodb_io_capacity_max=16000
innodb_adaptive_hash_index=OFF
innodb-change-buffering=none
innodb_flush_neighbors=0
innodb_max_dirty_pages_pct = 90
innodb_max_dirty_pages_pct_lwm = 10

# Binlog
relay-log=relay-1
binlog_format=ROW
enforce-gtid-consistency
gtid-mode=on
master-info-repository=TABLE
relay-log-info-repository=TABLE
binlog-checksum=NONE
log-bin
log_slave_updates
expire_logs_days=3
sync_binlog=1

# Monitoring
innodb_monitor_enable='%'
performance_schema=ON
performance_schema_instrument='%synch%=on'

# Galera
symbolic-links=0
explicit_defaults_for_timestamp=true
wsrep_provider=/usr/local/Percona-XtraDB-Cluster/lib/libgalera_smm.so
wsrep_cluster_address=gcomm://30.0.0.196,30.0.0.198,30.0.0.199
default_storage_engine=InnoDB
wsrep_slave_threads= 20
wsrep_log_conflicts
wsrep_cluster_name=pxc-cluster
wsrep_node_name=pxc-node-0
wsrep_node_address=30.0.0.196
pxc_strict_mode=ENFORCING
wsrep_sst_method=xtrabackup-v2
wsrep_sst_auth="sstuser:s3cret"

初始化(第一个节点)

/usr/local/Percona-XtraDB-Cluster/bin/mysqld  --initialize  --datadir=/data/database/pxc3306/  --basedir=/usr/local/Percona-XtraDB-Cluster/  --user=mysql

在初始化过程中会生成root@local的密码，需要用这个密码做第一次登录并修改。类似：

2018-05-08T02:34:50.116777Z 1 [Note] A temporary password is generated for root@localhost: dGpgf>_vj90>

启动(第一个节点)

/usr/local/Percona-XtraDB-Cluster/bin/mysqld_safe --defaults-file=/etc/pxc3306.cnf --wsrep-new-cluster --lc_messages_dir=/usr/local/Percona-XtraDB-Cluster/share/  --lc_messages=en_US &

改root密码

mysql> alter user root@localhost identified by '20c0dc7315fe8db65cbab532818e0e7a';

配置SST认证账号

mysql> CREATE USER 'sstuser'@'localhost' IDENTIFIED BY 's3cret';
mysql> GRANT RELOAD, LOCK TABLES, PROCESS, REPLICATION CLIENT ON *.* TO 'sstuser'@'localhost';
mysql> FLUSH PRIVILEGES;

启动其他节点

/usr/local/Percona-XtraDB-Cluster/bin/mysqld_safe --defaults-file=/etc/pxc3306.cnf --lc_messages_dir=/usr/local/Percona-XtraDB-Cluster/share/ --lc_messages=en_US &