[jira] [Commented] (DTACLOUD-251) CIMI client slow to list machines

["Dies Koper (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DTACLOUD-251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13481943#comment-13481943 ] 

Dies Koper commented on DTACLOUD-251:
-------------------------------------

The problem seems to be in machines.rb and machine.rb:
For every machine operation (show, start, stop, restart), for every machine, the hardware_profiles are loaded.
Certainly, for start, stop and restart there is no need for them.
For show, there is no need to load them again and again for each machine, rather it could be loaded only once.

This area needs a re-design. I can take a stab at it, but not being familiar with your coding style I doubt I can come up with a patch you'd easily accept :)

                
> CIMI client slow to list machines
> ---------------------------------
>
>                 Key: DTACLOUD-251
>                 URL: https://issues.apache.org/jira/browse/DTACLOUD-251
>             Project: DeltaCloud
>          Issue Type: Bug
>          Components: Server
>         Environment: Windows 7, FGCP driver, CIMI client
>            Reporter: Dies Koper
>            Assignee: Michal Fojtik
>
> When I list "instances" in the DC GUI with the FGCP driver and look at the requests made by the driver client to the FGCP API server, I see that the driver's instances method was called once. With a user account on a system with many (>50) instances spread over 30 virtual systems, it takes 15 seconds.
> When I list cimi/machines on the cimi client with the FGCP driver and look at the requests made by the driver client, it first invokes hardware_profiles three times, then invokes the driver's instances method once, then calls the hardware_profiles operation 410 times. This takes 160 seconds so the browser shows a timeout page (RestClient::RequestTimeout at /cimi/machines).
> Looking at only the latter case's results, the hardware_profiles could have been called directly from the cimi client or internally (from images) but as it doesn't happen with the normal DC GUI, I'm reporting this against the CIMI client first.

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