创建容器
docker run -d –privileged -v /sys/fs/cgroup:/sys/fs/cgroup -p 5306:5432 –name cent_pg_partition centos_j1 /usr/sbin/init
进入容器
docker exec -it cent_pg_partition /bin/bash
install postgresql
yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm
yum install postgresql96
yum install postgresql96-server postgresqyl96-contrib
/usr/pgsql-9.6/bin/postgresql96-setup initdb
systemctl enable postgresql-9.6
systemctl start postgresql-9.6
passwd postgres
alter user postgres with password ‘123456’;
登陆数据库服务器
su postgres
psql
create database testduliyan;–create database
create user super with superuser password ‘34567’;
\c testduliyan –切换数据库`
create table duliyan(id int primary key , name varchar(50));
install pglogical
yum install http://packages.2ndquadrant.com/pglogical/yum-repo-rpms/pglogical-rhel-1.0-3.noarch.rpm
yum install postgresql96-pglogical
修改配置文件
修改配置文件postgresql.conf
vi /var/lib/pgsql/9.6/data/postgresql.conf
listen_addresses =’*’
port=5432
password_encryption = onwal_level = ‘logical’
max_worker_processes = 10 # one per database needed on provider node
max_replication_slots = 10 # one per node needed on provider node
max_wal_senders = 10 # one per node needed on provider node
shared_preload_libraries = ‘pglogical’
track_commit_timestamp = on
修改pg_hba.conf
vi /var/lib/pgsql/9.6/data/pg_hba.conf
host all all 0.0.0.0/0 md5.
local replication super trust
host replication super 127.0.0.1/32 trust
host replication super ::1/128 trust
host replication super 0.0.0.0/0 trust
CREATE EXTENSION pglogical; — create 扩展工具`
select extname, extowner from pg_extension;`
yum install net-tool–172.17.0.9
psql -U super -h 127.0.0.1 -d testduliyan -W`
select pglogical.create_node(node_name := ‘provider1′,dsn :=’host=172.17.0.9 port=5432 dbname= testduliyan user= super1 password=34567’);`
select pglogical.replication_set_add_all_tables(‘default’,ARRAY[‘public’]);`
install pg_pathman
git clone https://github.com/postgrespro/pg_pathman
下载到主机的root文件夹, 然后复制到容器内
对于bash: make: command not found错误
yum -y install gcc automake autoconf libtool make
对于make: pg_config: Command not found错误
find / -name pg_config– /usr/pgsql-9.6/bin/pg_config
export PATH=/usr/pgsql-9.6/bin:$PATH
cd pg_pathman
对于Makefile:66: /usr/pgsql-9.6/lib/pgxs/src/makefiles/pgxs.mk: No such file or directory错误
yum install postgresql96-devel
对于fatal error: openssl/ssl.h: No such file or directory #include <openssl/ssl.h>
类似问题参考
yum install openssl
yum install openssl-devel
make USE_PGXS=1
make USE_PGXS=1 install
修改配置文件postgresql.conf
vi /var/lib/pgsql/9.6/data/postgresql.conf
shared_preload_libraries = ‘pg_pathman,pglogical’
systemctl start postgresql-9.6
create extension pg_pathman;
\dx
测试pg_pathman工具
create_range_partitions(relation REGCLASS, — 主表OID
attribute TEXT, — 分区列名
start_value ANYELEMENT, — 开始值
p_interval ANYELEMENT, — 间隔;任意类型,适合任意类型的分区表
p_count INTEGER DEFAULT NULL, — 分多少个区
partition_data BOOLEAN DEFAULT TRUE) — 是否立即将数据从主表迁移到分区,
–不建议这么使用, 建议使用非堵塞式的迁移( 调用partition_table_concurrently() )
使用非堵塞式的迁移接口
partition_table_concurrently(relation REGCLASS, — 主表OID
batch_size INTEGER DEFAULT 1000, — 一个事务批量迁移多少记录
sleep_time FLOAT8 DEFAULT 1.0) — 获得行锁失败时,休眠多久再次获取,重
create table part_test(id int, info text, crt_time timestamp not null);
insert into part_test select id,md5(random()::text),clock_timestamp() from generate_series(1,10000) t(id);
select create_range_partitions(‘part_test’::regclass,’crt_time’,’2017-12-28 00:00:00′::timestamp,interval ‘1 month’,10,false);–创建分区
select partition_table_concurrently(‘part_test’::regclass,10000,1.0);– 迁移数据到分区
select count(*) from only part_test;