- 简介
该文档中描述的方式针对源码安装的数据进行升级
- 操作过程
1. 说明
a. 当前数据库版本为11.22，升级后为15.8
2. 备份原数据库
3. 安装目标版本
[root@olinux73_model sws]# tar -zxf postgresql-15.8.tar.gz
[root@olinux73_model sws]# cd postgresql-15.8/
[root@olinux73_model postgresql-15.8]# mkdir -p /opt/app/pg15
[root@olinux73_model postgresql-15.8]# chown -R postgres:postgres /opt/app/pg15
[root@olinux73_model postgresql-15.8]# ./configure --prefix=/opt/app/pg15 --with-pgport=5432 --with-openssl --with-blocksize=32 --with-readline
[root@olinux73_model postgresql-15.8]# make && make install
[root@olinux73_model ~]# mkdir /opt/app/pgdata
[root@olinux73_model ~]# chown -R postgres:postgres /opt/app/pgdata/
[root@olinux73_model postgresql-15.8]# su - postgres
-bash-4.2$ /opt/app/pg15/bin/initdb -D /opt/app/pgdata -U postgres
4. 兼容性测试
[root@olinux73_model pg_backup]# systemctl stop postgresql.service
-bash-4.2$ /opt/app/pg15/bin/pg_upgrade --old-datadir=/u01/app/pgdata --new-datadir /opt/app/pgdata --old-bindir /u01/app/pgsql/bin --new-bindir /opt/app/pg15/bin --check
Performing Consistency Checks
-----------------------------
Checking cluster versions ok
Checking database user is the install user ok
Checking database connection settings ok
Checking for prepared transactions ok
Checking for system-defined composite types in user tables ok
Checking for reg* data types in user tables ok
Checking for contrib/isn with bigint-passing mismatch ok
Checking for removed "abstime" data type in user tables ok
Checking for removed "reltime" data type in user tables ok
Checking for removed "tinterval" data type in user tables ok
Checking for user-defined encoding conversions ok
Checking for user-defined postfix operators ok
Checking for incompatible polymorphic functions ok
Checking for tables WITH OIDS ok
Checking for invalid "sql_identifier" user columns ok
Checking for presence of required libraries ok
Checking database user is the install user ok
Checking for prepared transactions ok
Checking for new cluster tablespace directories ok
*Clusters are compatible*
5. 执行升级
-bash-4.2$ /opt/app/pg15/bin/pg_upgrade --old-datadir=/u01/app/pgdata --new-datadir /opt/app/pgdata --old-bindir /u01/app/pgsql/bin --new-bindir /opt/app/pg15/bin
Performing Consistency Checks
-----------------------------
Checking cluster versions ok
Checking database user is the install user ok
Checking database connection settings ok
Checking for prepared transactions ok
Checking for system-defined composite types in user tables ok
Checking for reg* data types in user tables ok
Checking for contrib/isn with bigint-passing mismatch ok
Checking for removed "abstime" data type in user tables ok
Checking for removed "reltime" data type in user tables ok
Checking for removed "tinterval" data type in user tables ok
Checking for user-defined encoding conversions ok
Checking for user-defined postfix operators ok
Checking for incompatible polymorphic functions ok
Checking for tables WITH OIDS ok
Checking for invalid "sql_identifier" user columns ok
Creating dump of global objects ok
Creating dump of database schemas
ok
Checking for presence of required libraries ok
Checking database user is the install user ok
Checking for prepared transactions ok
Checking for new cluster tablespace directories ok
If pg_upgrade fails after this point, you must re-initdb the
new cluster before continuing.
Performing Upgrade
------------------
Analyzing all rows in the new cluster ok
Freezing all rows in the new cluster ok
Deleting files from new pg_xact ok
Copying old pg_xact to new server ok
Setting oldest XID for new cluster ok
Setting next transaction ID and epoch for new cluster ok
Deleting files from new pg_multixact/offsets ok
Copying old pg_multixact/offsets to new server ok
Deleting files from new pg_multixact/members ok
Copying old pg_multixact/members to new server ok
Setting next multixact ID and offset for new cluster ok
Resetting WAL archives ok
Setting frozenxid and minmxid counters in new cluster ok
Restoring global objects in the new cluster ok
Restoring database schemas in the new cluster
ok
Copying user relation files
ok
Setting next OID for new cluster ok
Sync data directory to disk ok
Creating script to delete old cluster ok
Checking for extension updates ok
Upgrade Complete
----------------
Optimizer statistics are not transferred by pg_upgrade.
Once you start the new server, consider running:
/opt/app/pg15/bin/vacuumdb --all --analyze-in-stages
Running this script will delete the old cluster's data files:
./delete_old_cluster.sh
6. 修改环境变量
[root@olinux73_model ~]# vim /home/postgres/.bash_profile
export PGHOME=/opt/app/pg15
export PGDATA=/opt/app/pgdata
export PGPORT=5432
export PGPASSWORD=123456
export PATH=$PGHOME/bin:$PATH
export MANPATH=$PGHOME/share/man:$MANPATH
export LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH
export SCRIPTS_DIR=$SCRIPTS_DIR
export LANG=en_US.UTF-8
export DATE=`date +"%Y%m%d%H%M"`
[root@olinux73_model ~]# source /home/postgres/.bash_profile
7. 启动数据库
-bash-4.2$ /opt/app/pg15/bin/pg_ctl -D /opt/app/pgdata -l logfile start
waiting for server to start.... done
server started
8. 收集统计信息
-bash-4.2$ /opt/app/pg15/bin/vacuumdb --all --analyze-in-stages
vacuumdb: processing database "postgres": Generating minimal optimizer statistics (1 target)
vacuumdb: processing database "template1": Generating minimal optimizer statistics (1 target)
vacuumdb: processing database "testdb": Generating minimal optimizer statistics (1 target)
vacuumdb: processing database "postgres": Generating medium optimizer statistics (10 targets)
vacuumdb: processing database "template1": Generating medium optimizer statistics (10 targets)
vacuumdb: processing database "testdb": Generating medium optimizer statistics (10 targets)
vacuumdb: processing database "postgres": Generating default (full) optimizer statistics
vacuumdb: processing database "template1": Generating default (full) optimizer statistics
vacuumdb: processing database "testdb": Generating default (full) optimizer statistics
9. 删除旧数据
-bash-4.2$ ./delete_old_cluster.sh #会删除老的数据目录
10. 查看数据
postgres=# \c testdb
psql (11.22, server 15.8)
WARNING: psql major version 11, server major version 15.
Some psql features might not work.
You are now connected to database "testdb" as user "postgres".
testdb=# select * from tb01;
id | name
----+------
1 | a
(1 row)