在 TPA 节点上安装和配置 BAR NC - Teradata Data Mover

Teradata® Data Mover 安装、配置和升级指南(适用于客户)

Product
Teradata Data Mover
Release Number
17.11
Published
2021 年 10 月
Language
中文 (简体)
Last Update
2021-11-08
dita:mapPath
zh-CN/jzo1626458613083.ditamap
dita:ditavalPath
zh-CN/stp1591127384938.ditaval
dita:id
B035-4102
Product Category
Analytical Ecosystem
  1. 在以下服务器之一上运行 build_dsainputs,具体取决于使用的 DSA 配置:
    DSA 配置 服务器
    捆绑 DSA Data Mover 服务器
    外部 DSA 外部 DSC 服务器

    build_dsainputs 脚本复制到外部 DSC 服务器并从那里运行。该脚本可以复制到任何目录并从任何目录运行。

  2. 使用 build_dsainputs 工具为 TPA 节点创建一个 dsainputs 文件。
    build_dsainputs 工具可为 SMP 和 MPP 数据库创建 /tmp/dsainputs 文件。如果使用 -u 选项指定对 /tmp 目录具有写入访问权限的用户,则该工具可以选择将文件传输到 TPA 节点。此外,还可以使用 -i 选项指定包含私钥的标识文件。
    以下示例显示了在未提供任何参数的情况下运行 build_dsainputs 时的输出:
    build_dsainputs -d [-t] | -m <media_server_hostname>[,<media_server_hostname>...] | [-i <identity_file> -u <userid>] | [-u <userid>] | -h
    
    Parameters:
            -d                                      Creates a /tmp/dsainputs file for the DSC server.
    
            -m <ms_hostname>[,<ms_hostname>...]     Creates /tmp/dsainputs file(s) for a media server. Run this 
                                                    script one time for each Teradata system. Specify one host for  
                                                    an SMP System or a comma separated list for an MPP System. 
    
                                                    You may also specify a range of hostnames using 
    
                                                   <ms_hostname>[##-##] syntax. Creates a 
                                                    /tmp/dsainputs.<media_server_hostname> file for each host in 
                                                    the list. The /tmp/dsainputs files must be copied to their 
                                                    corresponding host before installing the 
                                                    ClientHandler rpm.
                                                    
                                                    Examples:
                                                    1) build_dsainputs -m devsys
                                                    Creates /tmp/dsainputs.devsys for SMP system 'devsys'. 
                                                    Copy this file to the corresponding database host 
                                                    and rename to /tmp/dsainputs before installing the 
                                                    ClientHandler rpm.
                                                    
                                                    2) build_dsainputs -m kiwi1,kiwi2   
                                                    Creates dsainputs files for a 2-node MPP system with hosts 
                                                    kiwi1 and kiwi2. The following files are created:
                                                    
                                                    	/tmp/dsainputs.kiwi1
                                                    	/tmp/dsainputs.kiwi2
                                                    
                                                    Copy these files to the corresponding database hosts (rename to 
                                                    /tmp/dsainputs) before installing the ClientHandler rpm.
                                                    3) build_dsainputs -m cucumber[1-3],onion1,tomato[12-13] 
    
    
                                                       /tmp/dsainputs.cucumber1
                                                       /tmp/dsainputs.cucumber2
                                                       /tmp/dsainputs.cucumber3
                                                       /tmp/dsainputs.onion1
                                                       /tmp/dsainputs.tomato12
                                                       /tmp/dsainputs.tomato13
                                                      
                                                    Copy these files to the corresponding database hosts (rename 
    
                                                    to /tmp/dsainputs) before installing the 
                                                    ClientHandler rpm.
    
            -i <identity_file>                      (Optional) When used with the -m option this specifies the 
                                                    identify_file (that contains the private key) that will be 
                                                    used along with the userid (provided with the -u option) to scp 
                                                    the /tmp/dsainputs(s) files to their respective hosts. 
                                                    The -u option must be provided when the -i option is included. 
                                                    
                                                    Example: build_dsainputs -m kiwi1,kiwi2 -i ./my_identity_file 
                                                    -u ec2-user 
    
            -u <userid>                             (Optional) When used with the -m option this specifies the 
                                                    userid that will be used to scp the /tmp/dsainputs(s) files to  
                                                    their respective host(s). Note that if you are using this  
                                                    without the -i option and password-less SSH is not configured,  
                                                    you will be prompted for a password for each file transfer. 
                                                    
                                                    Example: build_dsainputs -m kiwi1,kiwi2 -u root
    
            -t                                      (Optional) Must be used with -d option to generate the 
                                                    DSA input file. If specified, Teradata-specific parameters are 
                                                    added to /tmp/dsainputs. 
                                                    If not specified, PostgreSQL parameters are added instead.
    
            -h                                      Displays usage help.
    以下示例显示了针对 4 节点 MPP 系统运行 build_dsainputs。已提供 -u 选项,用于将文件传输到单个 TPA 节点:
    # ./build_dsainputs -m kiwi1,kiwi2,kiwi3,kiwi4 -u root
    Generating /tmp/dsainputs.kiwi1 - copy this file to /tmp/dsainputs on kiwi1 before installing the ClientHandler rpm.
    Generating /tmp/dsainputs.kiwi2 - copy this file to /tmp/dsainputs on kiwi2 before installing the ClientHandler rpm.
    Generating /tmp/dsainputs.kiwi3 - copy this file to /tmp/dsainputs on kiwi3 before installing the ClientHandler rpm.
    Generating /tmp/dsainputs.kiwi4 - copy this file to /tmp/dsainputs on kiwi4 before installing the ClientHandler rpm.
    
    Transferring /tmp/dsainputs file to kiwi1.
    dsainputs.kiwi1                                                                                                                                              100%  349     0.3KB/s   00:00    
    
    Transferring /tmp/dsainputs file to kiwi2.
    dsainputs.kiwi2                                                                                                                                              100%  348     0.3KB/s   00:00    
    
    Transferring /tmp/dsainputs file to kiwi3.
    dsainputs.kiwi3                                                                                                                                              100%  348     0.3KB/s   00:00    
    
    Transferring /tmp/dsainputs file to kiwi4.
    dsainputs.kiwi4 
    • 对于 MPP 系统,媒体服务器中列出的具有 -m 选项的节点必须解析为可从每个 MPP TPA 节点访问的 IP。
    • 在 SMP 系统上运行该工具时,仅显示一条文件生成和传输消息。
  3. 在 TPA 节点上安装 DSA ClientHandler RPM。
    有关详细信息,请参阅《Teradata® Data Stream Utility 安装、配置和升级指南,B035-3153》。
    如果在命令行上安装 clienthandler,而不是使用 PUT,请使用 rpm -ivh ClientHandler*.rpm 命令,而不是捆绑的脚本。如果在命令行上使用捆绑的 clienthandler_install.sh 脚本,/tmp/dsainputs 属性设置将被覆盖,您必须使用 rpm -e 移除 ClientHandler,然后重新执行步骤 1,为 TPA 节点创建 dsainputs 文件。
  4. 执行以下步骤以在 BAR NC TPA 节点上更新操作系统:
    1. 调整运行 BAR NC 的 TPA 节点上的以下操作系统可调参数:
      net.ipv4.tcp_max_syn_backlog to 16384 (default 2048)
      net.core.somaxconn to 16384 (default 128)
    2. 在 TPA 节点上运行以下命令,以立即加入这些更改:
      # echo 16384 > /proc/sys/net/core/somaxconn
      # echo 16384 > /proc/sys/net/ipv4/tcp_max_syn_backlog
    3. 在这些 TPA 节点上重新启动 ClientHandler:
      # /etc/init.d/clienthandler restart
    4. 使用以下值修改 sysctl.conf,以使这些值在启动时得以保留:
      net.core.somaxconn=16384
      net.ipv4.tcp_max_syn_backlog=16384
      Teradata 建议加入这些更改,以避免 DSMain 和 BAR NC 之间的网络通信出现问题。有关详细信息,请参阅 KB0016835。