【Teradata】配置PE和AMP(congfig和reconfig工具、vprocmanager)

The Reconfiguration and Configuration utilities are used to define the AMPs and PEs that operate together as a Teradata Database. (Configuration is described in an earlier chapter of this manual.)

1.config工具

(1)启动工具

cnsterm 6
start config
Started ‘config’ in window 1.
cnsterm 1
ctrl + c

(2)添加1个HOST、1个PE和4个AMP

begin config
add host hn = 1, ht = cop   //hostname和hosttype,后续必须添加对应PE
add pe 16381, hn = 1
add amp 0, cn = 3  //cluster number
add amp 1
add amps 2- 3, cn = 3
default cluster 4
end config
list
stop

【list | list pe | list amp | list cluster | list host 】

2.reconfig工具

Reconfiguration 要求没有用户登录,且系统是静止的。以重启数据库为终止。配置过程中,系统不可用。可以使用online和offline两种方式。

(1)登录工具

cnsterm 6
start reconfig
Started ‘reconfig’ in window 2.
cnsterm 2
ctrl + c

登录工具时,如报如下错误,使用vprocmanager工具将对应AMP状态改为offline

6164 NewReady AMPs which are not in New Configuration need to be DOWN 

//登录vprocmanager后使用如下命令:
set /v 1 offline
restart

(2)重新配置

reconfig

status //执行过程中查看状态
stop  //reconfig命令执行之前使用,停止reconfig。
abort //online方式且在重分布阶段时,停止reconfig。不支持offline方式的reconfig。

(3)确定reconfig正在执行

pdestate -a  //查看当前状态

PDE state is RUN/STARTED.
DBS state is 6: RECONFIG is running

 

 

3.vprocmanager工具设定vproc状态

(1)启动工具

cnsterm 6
start vprocmanager
Started ‘vprocmanager’ in window 3.
cnsterm 3
ctrl + c

(2)status命令

【status | status dbs | status online | status notonline | status pde | status restart | status sysstate | status 0,1,2,3 to 10,8192 to 20000

(3)设置vproc状态

set /v 0 to 10 offline 
set /v 1 online

(4) 重启

RESTART

 

posted @ 2019-03-07 16:10  李子恒  阅读(927)  评论(0编辑  收藏  举报