postgresql大版本升级
发布时间:2020-12-13 17:08:02 所属栏目:百科 来源:网络整理
导读:环境:当前版本:pg 9.4.6 安装路劲为:/data/pg946/目标版本:pg 9.5.1 安装路劲为:/data/pg951/*****************************************************1.安装新版本*****************************************************/*******make --versiongcc --versio
环境: 当前版本:pg 9.4.6 安装路劲为:/data/pg946/ 目标版本:pg 9.5.1 安装路劲为:/data/pg951/ ***************************************************** 1.安装新版本 ***************************************************** /******* make --version gcc --version perl --version python --version ----1.安装环境包 yum -y install wget gcc gcc-c++ readline-devel zlib-devel make systemtap systemtap-sdt-devel perl perl-devel python python-devel tcl tcl-devel perl-ExtUtils-Embed sgml-common docbook stylesheets openjade sgml-tools xsltproc libxslt libxslt-devel libxml2 libxml2-devel zlib zlib-devel openssl openssl-devel pam pam-devel bison flex libreadline6-devel ******/ ----2.编译安装 #useradd postgres && echo 'password' |passwd --stdin postgres #mkdir -p /data/pg951/data && chown -R postgres /data/pg951/data # wget https://ftp.postgresql.org/pub/source/v9.5.1/ #mkdir -p /soft && cd /soft #rz # tar xf postgresql-9.5.1.tar.gz && cd postgresql-9.5.1 #./configure ./configure --prefix=/data/pg951 --with-pgport=5435 --with-perl --with-python --with-tcl --with-openssl --without-ldap --with-libxml --with-libxslt --enable-thread-safety --with-wal-blocksize=64 --with-blocksize=32 --with-wal-segsize=64 -enable-dtrace --enable-debug #make && make install -----3.执行数据库初始化脚本(指定字符集) $/data/pg951/bin/initdb -D /data/pg951/data --encoding=utf8 -U postgres ---结果如下 The files belonging to this database system will be owned by user "postgres". This user must also own the server process. The database cluster will be initialized with locale "C". The default database encoding has accordingly been set to "SQL_ASCII". The default text search configuration will be set to "english". Data page checksums are disabled. fixing permissions on existing directory /data/pg951/data ... ok creating subdirectories ... ok selecting default max_connections ... 100 selecting default shared_buffers ... 128MB selecting dynamic shared memory implementation ... posix creating configuration files ... ok creating template1 database in /data/pg951/data/base/1 ... ok initializing pg_authid ... ok initializing dependencies ... ok creating system views ... ok loading system objects' descriptions ... ok creating collations ... ok creating conversions ... ok creating dictionaries ... ok setting privileges on built-in objects ... ok creating information schema ... ok loading PL/pgSQL server-side language ... ok vacuuming database template1 ... ok copying template1 to template0 ... ok copying template1 to postgres ... ok syncing data to disk ... ok WARNING: enabling "trust" authentication for local connections You can change this by editing pg_hba.conf or using the option -A,or --auth-local and --auth-host,the next time you run initdb. Success. You can now start the database server using: /data/pg951/bin/pg_ctl -D /data/pg951/data -l logfile start ----4.启动pg新版本 $cp postgresql.conf /data/pg951/data/ $/data/pg951/bin/pg_ctl -D /data/pg951/data status $/data/pg951/bin/pg_ctl -D /data/pg951/data start $退出变更登录 exit ***************************************************** ---2.升级 ***************************************************** -----1.将两个库都停止服务 $ netstat -lntp | grep postgres tcp 0 0 0.0.0.0:5432 0.0.0.0:* LISTEN 6287/postgres tcp 0 0 127.0.0.1:5435 0.0.0.0:* LISTEN 6303/postgres $/data/pg946/bin/pg_ctl -D /data/pg946/data stop $/data/pg951/bin/pg_ctl -D /data/pg951/data stop $ /data/pg946/bin/pg_ctl -D /data/pg946/data status pg_ctl: no server running $ /data/pg951/bin/pg_ctl -D /data/pg951/data status pg_ctl: no server running ------2.执行pg_upgrade #mkdir -p /data/upgrade && chown -R postgres /data/upgrade ----2.1 进行pg_upgrade检查 $cd /data/upgrade/ $/data/pg951/bin/pg_upgrade -c -b /data/pg946/bin -B /data/pg951/bin/ -d /data/pg946/data -D /data/pg951/data -p 5432 -P 5435 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 reg* system OID user data types ok Checking for contrib/isn with bigint-passing mismatch ok Checking for presence of required libraries ok Checking database user is the install user ok Checking for prepared transactions ok *Clusters are compatible* ----2.2进行pg_upgrade升级 两种升级方式: 1).缺省的通过拷贝数据文件到新的data目录下,拷贝的方式升级较慢,但是原库还可用; 2).硬链接的方式升级较快,但是原库不可用. $/data/pg951/bin/pg_upgrade -b /data/pg946/bin -B /data/pg951/bin/ -d /data/pg946/data -D /data/pg951/data -p 5432 -P 5435 ----执行结果 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 reg* system OID user data types ok Checking for contrib/isn with bigint-passing mismatch 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 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 on the new cluster ok Deleting files from new pg_clog ok Copying old pg_clog to new server 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 Creating newly-required TOAST tables ok Copying user relation files ok Setting next OID for new cluster ok Sync data directory to disk ok Creating script to analyze new cluster ok Creating script to delete old cluster ok Upgrade Complete ---------------- Optimizer statistics are not transferred by pg_upgrade so,once you start the new server,consider running: ./analyze_new_cluster.sh Running this script will delete the old cluster's data files: ./delete_old_cluster.sh ---3. 修改新版本为正常端口号 $ grep -i "^port" /data/pg951/data/postgresql.conf port = 5435 # (change requires restart) $ sed -i "s/5435/5432/1" /data/pg951/data/postgresql.conf port = 5432 # (change requires restart) ----4.修改环境变量 # su - postgres $ vi ~/.bash_profile # postgres #PostgreSQL端口 PGPORT=5432 #PostgreSQL数据目录 PGDATA=/data/pg951/data export PGPORT PGDATA #所使用的语言 export LANG=en_US.utf8 #PostgreSQL 安装目录 export PGHOME=/data/pg951 #PostgreSQL 连接库文件 export LD_LIBRARY_PATH=$PGHOME/lib:/lib64:/usr/lib64:/usr/local/lib64:/lib:/usr/lib:/usr/local/lib:$LD_LIBRARY_PATH export DATE=`date +"%Y%m%d%H%M"` #将PostgreSQL的命令行添加到 PATH 环境变量 export PATH=$PGHOME/bin:$PATH #PostgreSQL的 man 手册 export MANPATH=$PGHOME/share/man:$MANPATH #PostgreSQL的默认用户 export PGUSER=postgres #PostgreSQL默认主机地址 export PGHOST=127.0.0.1 #默认的数据库名 export PGDATABASE=postgres #source ~/.bash_profile ----5.PostgreSQL执行脚本 #复制PostgreSQL执行脚本 cp /soft/postgresql-9.5.1/contrib/start-scripts/linux /etc/init.d/postgresql #增加执行权限 chmod +x /etc/init.d/postgresql #编辑PostgreSQL执行脚本,确定以下参数或修改 #vi /etc/init.d/postgresql # Installation prefix prefix=/data/pg951 # Data directory PGDATA="/data/pg951/data" # Who to run the postmaster as,usually "postgres". (NOT "root") PGUSER=postgres # Where to keep a log file PGLOG="$PGDATA/serverlog" ----6.启动新版本 /data/pg951/bin/pg_ctl -D /data/pg951/data start -----7.验证 $ /data/pg951/bin/psql --version psql (PostgreSQL) 9.5.1 $ /data/pg951/bin/psql psql (9.5.1) Type "help" for help. postgres@127.0.0.1 ~=# l List of databases Name | Owner | Encoding | Collate | Ctype | Access privileges -----------+----------+----------+------------+------------+----------------------- postgres | postgres | UTF8 | en_US.utf8 | en_US.utf8 | template0 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres + | | | | | postgres=CTc/postgres template1 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | postgres=CTc/postgres+ | | | | | =c/postgres wind | postgres | UTF8 | en_US.utf8 | en_US.utf8 | (4 rows) postgres@127.0.0.1 ~=# c wind You are now connected to database "wind" as user "postgres". postgres@127.0.0.1 wind=# d List of relations Schema | Name | Type | Owner --------+------+-------+---------- public | t00 | table | postgres (1 row) postgres@127.0.0.1 wind=# select count(*) from t00; count ------- 1000 (1 row) Time: 2.308 ms postgres@127.0.0.1 wind=# ---8.删除老版本软件 $ cat delete_old_cluster.sh #!/bin/sh rm -rf '/data/pg941/data' $ ./delete_old_cluster.sh (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |