greenplum集群的rpm（生产环境）部署及参数优化

文章目录

一、服务器相关配置参数更改
二、rpm安装：
三、登录测试：
四、授权
五、添加mirror
六、添加standby

文档为markdown格式
关于greenplum的组件介绍、工作原理网上很多，下面是我感觉部署比较方便的方法
环境：
centos7.4 16核32G

ip	hostname	角色
192.168.0.44	k8s-master	master、segment
192.168.0.43	k8s-node1	segment、standby
192.168.0.40	k8s-node2	segment

一、服务器相关配置参数更改

1、添加hosts

cat /etc/hosts
192.168.0.44 k8s-master
192.168.0.43 k8s-node1
192.168.0.40 k8s-node2

2、配置tcp参数

修改/etc/sysctl.conf

[root@k8s-master ~]# cat >> /etc/sysctl.conf  <<EOF
net.ipv4.ip_forward = 0
net.ipv4.conf.default.accept_source_route = 0
kernel.core_uses_pid = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.ip_local_port_range = 10240 65535

vm.swappiness=0
net.ipv4.tcp_sack=1
net.ipv4.tcp_timestamps=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_congestion_control=cubic
net.ipv4.tcp_syncookies=1
net.ipv4.tcp_tw_recycle=0
net.ipv4.tcp_max_syn_backlog=65535
net.core.somaxconn=65535
net.core.rmem_max=16777216
net.core.wmem_max=16777216
vm.overcommit_memory=1

fs.file-max = 2097152
fs.nr_open = 2097152
net.core.netdev_max_backlog = 16384

net.ipv4.tcp_mem = 786432 2097152 3145728
net.core.optmem_max=4194304
net.ipv4.tcp_max_tw_buckets = 1048576
net.ipv4.tcp_fin_timeout = 30

net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.eth0.rp_filter = 0
net.core.rmem_default = 16777216
net.core.wmem_default = 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.conf.all.arp_filter = 1
net.ipv4.conf.default.arp_filter = 1
vm.max_map_count = 1048575

kernel.shmmni = 4096
kernel.sem= 250 512000 100 2048
kernel.sysrq = 1
kernel.msgmni = 2048
kernel.pid_max=4096000
EOF

注意：kernel.shmmax = 5000000000 单位b（bit），值的大小为实际内存的50%。
kernel.shmmax参数调整系统内存的50%

执行：sysctl -p

3、添加limits.conf

[root@k8s-master ~]# cat >> /etc/security/limits.conf <<EOF
* soft nofile 65536
* hard nofile 65536
* soft nproc 131072
* hard nproc 131072
EOF

4、修改I/O调度算法

[root@k8s-master ~]# echo deadline > /sys/block/vdb/queue/scheduler
[root@k8s-master ~]#  grubby --update-kernel=ALL --args="transparent_hugepage=never"

5、设置gpadmin用户，密码

[root@k8s-master ~]# useradd  gpadmin
[root@k8s-master ~]# usermod -L gpadmin
#提权
[root@k8s-master ~]# visudo  
gpadmin    ALL=(ALL)       ALL
gpadmin    ALL=(ALL)       NOPASSWD:ALL
#创建密码
[root@k8s-master ~]# passwd gpadmin

注：注意设置密码为了后面gpssh-exkeys -f list 使用

二、rpm安装：

1、下载&安装：

wget http://123.57.75.212:80/greenplum-db-5.10.2-rhel7-x86_64.rpm

安装

[root@k8s-master ~]# rpm -ivh greenplum-db-5.10.2-rhel7-x86_64.rpm 
Preparing...                          ################################# [100%]
Updating / installing...
   1:greenplum-db-5.10.2-1            ################################# [100%]

2、安装目录相关文件授权


[root@k8s-master ~]# chown -R gpadmin.gpadmin /usr/local/greenplum-db*
[root@k8s-master ~]# chown gpadmin.gpadmin /usr/local  #需要在每个节点执行授权

以下开始，进入gpadmin用户下操作：

#hostlist自定义的,一般为hostname
[gpadmin@k8s-master ~]$ cat list
k8s-master
k8s-node1
k8s-node2

3、添加环境变量

[gpadmin@k8s-master ~]$ cat /usr/local/greenplum-db/greenplum_path.sh >>~/.bashrc 
[gpadmin@k8s-master ~]$ cat >>  ~/.bashrc <<EOF
MASTER_DATA_DIRECTORY=/opt/data/master/gpseg-1
export MASTER_DATA_DIRECTORY
EOF
[gpadmin@k8s-master ~]$ source ~/.bashrc

4、配置免密登陆：

[gpadmin@k8s-master ~]$ gpssh-exkeys -f list

5、检查环境（可以忽略）:

[gpadmin@k8s-master ~]$ gpcheck -f list

6、在segment节点安装greenplum-db-5.10.2-rhel7-x86_64:

[gpadmin@k8s-master ~]$ gpseginstall -f list

7、创建数据目录:

[gpadmin@k8s-master ~]$ gpssh -f list -e " sudo chown gpadmin.gpadmin /opt"
[gpadmin@k8s-master ~]$ gpssh -f list -e " mkdir -p /opt/data/{primary,mirror}"

创建master目录
[gpadmin@k8s-master ~]$ mkdir -p /opt/data/master

8、创建初始化config文件

[gpadmin@k8s-master ~]$ cat > gpinitsystem_config <<EOF

###需要的参数，目录可以根据需要更改##
ARRAY_NAME="Greenplum Data Platform"
SEG_PREFIX=gpseg
PORT_BASE=40000
declare -a DATA_DIRECTORY=(/opt/data/primary /opt/data/primary /opt/data/primary)
MASTER_HOSTNAME=k8s-master    #修改为主节点主机名
MASTER_DIRECTORY=/opt/data/master
MASTER_PORT=5432
TRUSTED_SHELL=ssh
CHECK_POINT_SEGMENTS=8
ENCODING=UNICODE
declare -a MIRROR_DATA_DIRECTORY=(/opt/data/mirror /opt/data/mirror /opt/data/mirror)
EOF

9、初始化数据库：

[gpadmin@k8s-master ~]$ gpinitsystem -a -c gpinitsystem_config -h list

初始化完成！

简单实用-添加允许连接的网段

示例：host 库名用户名 ip/24 trust

注意：根据服务器的具体情况进行配置修改

cat /opt/data/master/gpseg-1/pg_hba.conf

host	all	gpadmin	192.168.0.43/32	trust
host	all	all	0.0.0.0/0	trust
local    all         gpadmin         ident
host     all         gpadmin         127.0.0.1/28    trust
host     all         gpadmin         192.168.0.44/32       trust

重新加载配置文件
gpstop -u
#启动服务
gpstart  -a
#停止服务
gpstop -a

三、登录测试：

[gpadmin@k8s-master ~]$ psql -d postgres
psql (8.3.23)
Type "help" for help.

postgres=# \l
                  List of databases
   Name    |  Owner  | Encoding |  Access privileges
-----------+---------+----------+---------------------
 postgres  | gpadmin | UTF8     |
 template0 | gpadmin | UTF8     | =c/gpadmin
                                : gpadmin=CTc/gpadmin
 template1 | gpadmin | UTF8     | =c/gpadmin
                                : gpadmin=CTc/gpadmin
(3 rows)

postgres=#
postgres=# select * from gp_segment_configuration;
 dbid | content | role | preferred_role | mode | status | port  |      hostname       |       address       | replication_port
------+---------+------+----------------+------+--------+-------+---------------------+---------------------+------------------
    1 |      -1 | p    | p              | s    | u      |  5432 | k8s-master | k8s-master |
    2 |       0 | p    | p              | s    | u      | 40000 | k8s-master | k8s-master |
    5 |       3 | p    | p              | s    | u      | 40000 | bj-ksy-g1-mongos-02 | bj-ksy-g1-mongos-02 |
    8 |       6 | p    | p              | s    | u      | 40000 | bj-ksy-g1-mongos-03 | bj-ksy-g1-mongos-03 |
    3 |       1 | p    | p              | s    | u      | 40001 | k8s-master | k8s-master |
    6 |       4 | p    | p              | s    | u      | 40001 | bj-ksy-g1-mongos-02 | bj-ksy-g1-mongos-02 |
    9 |       7 | p    | p              | s    | u      | 40001 | bj-ksy-g1-mongos-03 | bj-ksy-g1-mongos-03 |
    4 |       2 | p    | p              | s    | u      | 40002 | k8s-master | k8s-master |
    7 |       5 | p    | p              | s    | u      | 40002 | bj-ksy-g1-mongos-02 | bj-ksy-g1-mongos-02 |
   10 |       8 | p    | p              | s    | u      | 40002 | bj-ksy-g1-mongos-03 | bj-ksy-g1-mongos-03 |

四、授权

根据不同的库创建不同的用户名密码
xnreport 8ql6,report
crm 8ql6,crm
xncc 8ql6,xncc

示例(根据具体情况操作)：

#给database授权
create user superuser xnreport password '8ql6,report';
grant all privileges on databases xn_report to xnreport;

#给table授权
grant all privileges on table table_name to xnreport;

五、添加mirror

1、在所有需要添加mirror的主机，创建存放mirror的数据目录（如果已经创建，忽略此操作）
$ mkdir /opt/data/mirror

以下再master操作
2、生成配置文件
$ gpaddmirrors -o addmirror

添加mirror
gpaddmirrors -a -i addmirror -v

六、添加standby

1、在standy节点上创建master目录
2、在master上执行
gpinitstandby -a -s k8s-node1

postgres=# select * from pg_stat_replication ;
 procpid | usesysid | usename | application_name | client_addr | client_port |         backend_start         |   state   | sent_location | write_location | flush_location | replay_location | sync_priority | syn
c_state
---------+----------+---------+------------------+-------------+-------------+-------------------------------+-----------+---------------+----------------+----------------+-----------------+---------------+----
--------
    6931 |       10 | gpadmin | walreceiver      | 192.168.0.43 |       48800 | 2018-12-24 11:51:05.376815+08 | streaming | 0/14000C18    | 0/14000C18     | 0/14000C18     | 0/14000C18      |             1 | syn
c


postgres=# select a.dbid,a.content,a.role,a.port,a.hostname,b.fsname,c.fselocation from gp_segment_configuration a,pg_filespace b,pg_filespace_entry c where a.dbid=c.fsedbid and b.oid=c.fsefsoid order by content;