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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-9340) General DB Optimization
Date Thu, 28 Apr 2016 20:06:13 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-9340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15262876#comment-15262876
] 

ASF GitHub Bot commented on CLOUDSTACK-9340:
--------------------------------------------

Github user rafaelweingartner commented on the pull request:

    https://github.com/apache/cloudstack/pull/1466#issuecomment-215546030
  
    @nvazquez, 
    What does that mean?
    
    First we are executing all of the `schema-XXXtoYYY.sql`, then all of the `schemaXXXtoYYY-cleanup.sql`?
Instead of` schema-XXXtoYYY.sql, schemaXXXtoYYY-cleanup.sql` and then `schema-XXX+1toYYY+1.sql,
schemaXXX+1toYYY+1-cleanup.sql`
    
    I have just looked at the code at "com.cloud.upgrade.DatabaseUpgradeChecker.upgrade(String,
String)", that is exactly what happens.
    First we are executing all of the `schema-XXXtoYYY.sql`, then all of the `schemaXXXtoYYY-cleanup.sql`
    
    So, I am ok with your changes to create the "schema-410to420-cleanup.sql"
    
    So, I am ok with you moving some scripts to 



> General DB Optimization
> -----------------------
>
>                 Key: CLOUDSTACK-9340
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9340
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the default.) 
>    Affects Versions: 4.9.0
>            Reporter: Nicolas Vazquez
>              Labels: database
>             Fix For: 4.9.0
>
>
> h2. General DB Optimization
> In some production environments there were being experimented delays in most of the jobs.
A search for DB optimization was taken and some deficiencies were discovered, we can group
them in 4 groups:
> * Incorrect PRIMARY key
> * Duplicate PRIMARY KEY
> * Missing indexes (Add indexes to avoid full table scans)
> * Some views query (Change view to improve account retrieval speed)



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