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  • 【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
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  • 原文地址:https://www.cnblogs.com/badboy200800/p/10490322.html
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