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https://issues.apache.org/jira/browse/CLOUDSTACK-9340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15270674#comment-15270674
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ASF GitHub Bot commented on CLOUDSTACK-9340:
--------------------------------------------
Github user serg38 commented on the pull request:
https://github.com/apache/cloudstack/pull/1466#issuecomment-216876560
Thanks @koushik-das. Looks like before 5.6 Mysql auto restricted length of
InnoDB indexes to 255 characters without giving trouble if index length is not
specified. For public_key index in ssh_keypairs table first 64 bytes is enough
to make good index. @nvazquez let's change this index creation to
ALTER TABLE `cloud`.`ssh_keypairs` ADD INDEX `i_public_key`
(`public_key`(64) ASC);
> 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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