Greenplum docker 安装测试环境
- 下载docker 拉去docker 镜像，创建镜像
yum -y install docker
systemctl start dokcer
docker pull centos：6
docker run --privileged -dti -p 65000:6500 --name gptest1 centos:6 bash
docker run --privileged -dti --name gptest2 centos:6 bash
docker run --privileged -dti --name gptest3 centos:6 bash
docker run --privileged -dti --name gptest4 centos:6 bash
--privileges docker 有root权限
2、下载依赖包并启动ssh,并配置时间同步
docker中默认没有启动ssh，为了方便各节点之间的互连，启动docker的每个节点里面的ssh，并创建相关的认证key
yum install -y net-tools which openssh-clients openssh-server less zip
unzip iproute.x86_64 vim ntp ed
yum install update 更新系统内核
ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key
/usr/sbin/sshd
ntpdate ntp1.aliyun.com
配置主机域名映射关系
172.17.0.2 dw-greenplum-1 mdw
172.17.0.3 dw-greenplum-2 sdw1
172.17.0.4 dw-greenplum-3 sdw2
172.17.0.4 dw-greenplum-4 sdw3
同时，修改所有节点里面的 /etc/sysconfig/network 文件，保持主机名一致
修改/etc/hostname 的名字
[root@mdw /]# cat /etc/hostname
mdw
[root@mdw /]# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=mdw- 修改每个节点上面的文件打开数量的限制
cat /etc/security/limits.conf- soft nofile 65536
- hard nofile 65536
- soft nproc 131072
- hard nproc 131072
[root@mdw /]# cat /etc/security/limits.d/90-nproc.conf - soft nproc 131072
root soft nproc unlimited
修改内核参数
sysctl -w kernel.sem="500 64000 50 150"
cat /proc/sys/kernel/sem关闭所有节点的防火墙和selinux
service iptables stop
chkconfig iptables off
setenforce 0- 下载greenplum安装包
需要注册账号。也可以在公司的机器上面拉取现有的二进制包
https://network.pivotal.io/products/pivotal-gpdb
7.所有节点创建 greenplum 的用户和用户组
groupadd -g 530 gpadmin
useradd -g 530 -u 530 -m -d /home/gpadmin -s /bin/bash gpadmin
chown -R gpadmin:gpadmin /home/gpadmin
echo 123456 |passwd gpadmin --stdin
在master上面安装greenplum
su - gpadmin
unzip greenplum-db-4.3.14.1-rhel5-x86_64.zip
sh /greenplum-db-4.3.14.1-rhel5-x86_64.bin
安装期间需要修改默认安装目录，输入/home/gpadmin/greenplum-db
为了方便安装集群，greenplum提供了批量操作的指令，通过创建配置文件，以使用批处理命令
创建文件
[gpadmin@mdw ~]$ cat conf/hostlist
mdw
sdw1
sdw2
sdw3
[gpadmin@mdw ~]$ cat conf/seg_hosts
sdw1
sdw2- 设置环境变量打通所有的节点
source greenplum-db/greenplum_path.sh
[gpadmin@mdw ~]$ gpssh-exkeys -f /home/gpadmin/conf/hostlist //传输秘钥
[STEP 1 of 5] create local ID and authorize on local host
... /home/gpadmin/.ssh/id_rsa file exists ... key generation skipped
[STEP 2 of 5] keyscan all hosts and update known_hosts file
[STEP 3 of 5] authorize current user on remote hosts
... send to sdw1
... send to sdw2
[STEP 4 of 5] determine common authentication file content
[STEP 5 of 5] copy authentication files to all remote hosts
... finished key exchange with sdw1
... finished key exchange with sdw2
... finished key exchange with sdw3
[INFO] completed successfully
使用gpssh-exkeys命令时一定要使用gpadmin身份，因为会在/home/gpadmin/.ssh
中生成ssh的免密码登录秘钥，
[gpadmin@mdw ~]$ gpssh -f /home/gpadmin/conf/hostlist
Note: command history unsupported on this machine ...
=> pwd
[ mdw] /home/gpadmin
[sdw2] /home/gpadmin
[sdw1] /home/gpadmin
[sdw3] /home/gpadmin
分发所有的安装包到每个值节点
tar cf greenplum.tar greenplum-db/
将文件拷贝到每个机器上面
gpscp -f /home/gpadmin/conf/hostlist greenplum.tar =:/home/gpadmin/
批量解压
tar -xf greenplum.tar
这样所有的节点就完成的安装- 初始化创建数据目录
[gpadmin@mdw conf]$ gpssh -f hostlist
=> mkdir gpdata
[ mdw]
[sdw2]
[sdw1]
[sdw3]
=> cd gpdata
[ mdw]
[sdw2]
[sdw1]
[sdw3]
=> mkdir gpmaster gpdatap1 gpdatap2 gpdatam1 gpdatam2
[ mdw]
[sdw2]
[sdw1]
[sdw3]
=> exit
每个节点上面配置环境变量
cat .bash_profile
source /home/gpadmin/greenplum-db/greenplum_path.sh
export MASTER_DATA_DIRECTORY=/home/gpadmin/gpdata/gpmaster/gpseg-1
export PGPORT=6500
export PGDATABASE=postgres
source .bash_profile
配置初始化文件
[gpadmin@mdw conf]$ cat gpinitsystem_config
ARRAY_NAME="Greenplum"
MACHINE_LIST_FILE=/home/gpadmin/conf/seg_hosts
Segment 的名称前缀
SEG_PREFIX=gpseg
Primary Segment 起始的端口号
PORT_BASE=33000
指定 Primary Segment 的数据目录
declare -a DATA_DIRECTORY=(/home/gpadmin/gpdata/gpdatap1 /home/gpadmin/gpdata/gpdatap2)
Master 所在机器的 Hostname
MASTER_HOSTNAME=mdw
指定 Master 的数据目录
MASTER_DIRECTORY=/home/gpadmin/gpdata/gpmaster
Master 的端口
MASTER_PORT=6500
指定Bash的版本
TRUSTED_SHELL=ssh
Mirror Segment起始的端口号
CHECK_POINT_SEGMENTS=256
MIRROR_PORT_BASE=43000
Primary Segment 主备同步的起始端口号
REPLICATION_PORT_BASE=34000
Mirror Segment 主备同步的起始端口号
MIRROR_REPLICATION_PORT_BASE=44000
Mirror Segment 的数据目录
declare -a MIRROR_DATA_DIRECTORY=(/home/gpadmin/gpdata/gpdatam1 /home/gpadmin/gpdata/gpdatam2)
初始化数据库
gpinitsystem -c gpinitsystem_config -h hostlist -s sdw3 -S
//如无报错就是初始化完成，如果有报错，就需要根据日志提示修改配置，并重新初始化
[gpadmin@mdw conf]$ psql
psql (8.2.15)
Type "help" for help.
postgres=# select version();
version
PostgreSQL 8.2.15 (Greenplum Database 4.3.10.0 build commit: f413ff3b006655f14b6b9aa217495ec94da5c96c) on x86_64-unknown-linux-gnu, compiled by GCC gcc (GCC) 4.4.2 compi
led on Oct 21 2016 19:36:26
(1 row)
错误截图，日志和截图
节点有部分起来，一部分没有起来。主机资源不够。
2019-10-28 21:20:25.520556 CST,,,p6788,th-1469757664,,,,0,,,seg-1,,,,,"FATAL","XX000","could not create semaphores: No space left on device (pg_sema.c:132)","Failed system call was semget(43001004, 17, 03600).","This error does not mean that you have run out of disk space.
It occurs when either the system limit for the maximum number of semaphore sets (SEMMNI), or the system wide maximum number of semaphores (SEMMNS), would be exceeded. You need to raise the respective kernel parameter. Alternatively, reduce PostgreSQL's consumption of semaphores by reducing its max_connections parameter (currently 750).
The PostgreSQL documentation contains more information about configuring your system for PostgreSQL.",,,,,,"InternalIpcSemaphoreCreate","pg_sema.c",132,1 0xb0a80e postgres errstart + 0x4de
调整配置文件
vim /home/gpadmin/gpdata/gpdatam1/gpseg6/postgresql.conf
//每台机器4个segments 都要修改
max_connections = 200 //原值750 ，调整到200
shared_buffers = 500MB //原值275 调整到500
gpstart -a 重启启动集群
gpstop -u 重新加载配置文件
#常用操作命令
gpstate:查看数据库集群状态，示例:gpstate -a
gpstart:启动数据库集群,示例:gpstart -a
gpstop:关闭数据库集群,示例:gpstop -a -M fast
gpssh:远程执行shell命令，示例:gpssh -f hosts -e 'date'
部署参考博文
https://www.cnblogs.com/dap570/archive/2015/03/21/greenplum_4node_install.html
https://my.oschina.net/u/876354/blog/1606419
