Vertica DBD 分析优化设计

浏览数：30 / 时间：2015年06月12日

DBD = Database Designer，是Vertica数据库优化中最主要的原生工具。

首先运行admintools工具,按下面步骤依次执行：

1.选择"6 Configuration Menu"
2.选择"2 Run Database Designer"
3."Select a database for design" 选择需要分析的数据库
4."Enter directory for Database Designer output:" 输入dbd的输出目录
5."Designer name:" 输入dbd的名字，随意起
6."Design Type[Comprehensive|Query-specific]" 选择dbd的设计类型，有两个单选项，根据实际需求选择
7."Select schema(s) for design" 选择需要设计的shema(s)
8."Design options[Optimize with queries|Update statistics|Deploy design]" 这里有三个复选项，推荐先去掉Deploy design，之后可以手工应用dbd的建议
9."Enter the full path for queries file" 输入业务常用到的sql查询语句，使得dbd的分析更有针对性
10."Proposed K-safety value:1" 这里默认即可
11."Select storage footprint preference[Balanced query/load performance|Query performance(larger footprint)|Load performance(smaller footprint)]" 这里有三个单选项，根据实际需求选择，一般选择第一项，均衡兼顾查询和加载性能
12."Proceed" 执行dbd
13."Database Designer started." dbd已经开始，会有类似下面的输出，直到完成dbd

Database Designer started.

For large databases a design session could take a long time; allow it to complete uninterrupted.
Use Ctrl+C if you must cancel the session.

Setting up design session...

Examining table data...

Loading queries from ‘/home/dbadmin/sqltune.sql‘.
Processed 22 SQL statement(s), all accepted and considered in the design.
No existing projections found.

Creating design...
[100%] Design in progress... Completed of .

[100%] Analyzing data statistics... Completed of .

[100%] Design in progress... Completed of .

[100%] Optimizing query performance... Completed of .

[100%] Design in progress... Completed of .

[100%] Optimizing storage footprint... Completed of .

[100%] Internal warning during design... Completed of .

Query optimization results...

Query 1 optimization ratio or status is 1
Query 2 optimization ratio or status is 1
Query 3 optimization ratio or status is 1
Query 4 optimization ratio or status is 1
Query 5 optimization ratio or status is 1
Query 6 optimization ratio or status is 1
Query 7 optimization ratio or status is 1
Query 8 optimization ratio or status is 1
Query 9 optimization ratio or status is 1
Query 10 optimization ratio or status is 1
Query 11 optimization ratio or status is 1
Query 12 optimization ratio or status is 1
Query 13 optimization ratio or status is 1
Query 14 optimization ratio or status is 1
Query 15 optimization ratio or status is 1
Query 16 optimization ratio or status is 1
Query 17 optimization ratio or status is 1
Query 18 optimization ratio or status is 1
Query 19 optimization ratio or status is 1
Query 20 optimization ratio or status is 1
Query 21 optimization ratio or status is 1
Query 22 optimization ratio or status is 1

Generating deployment script...

Could not generate default deployment script.

The deployment error is Deployment did not complete successfully. ERROR - Insufficient resources to execute plan on pool dbd [Timedout waiting for resource request: waiting for reservation spot]

Design script is located in /home/dbadmin/designer1_design.sql
Deployment script is located in /home/dbadmin/designer1_deploy.sql
The design will not be deployed.

The new design was not automatically deployed.
For manual deployment procedures consult Vertica Administrator‘s Guide

Database Designer finished.
Press <Enter> to return to the Administration Tools menu.
Vertica Analytic Database 6.1.3-7 Administration Tools