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https://issues.apache.org/jira/browse/WHIRR-61?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021035#comment-13021035
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Adrian Cole edited comment on WHIRR-61 at 4/18/11 2:11 PM:
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@andrei the largest startup time is parsing images, locations, and hardware 
profiles in the cloud.  This is a function of the response time of the rest 
requests from the server, which vary dramatically from 150ms -> 30 seconds 
(image fetch in amazon).  jclouds optimizes this as much as possible.  
blobstore context startup only saves a couple seconds or less, as the only 
thing parsed there are locations (ex. getBucketLocation in s3).

      was (Author: [email protected]):
    @andrei startup is referring to the time to parse the images, locations, 
and hardware profiles in the cloud.  I've seen this take 30 seconds in amazon, 
probably a few to several seconds in other clouds.  optimizing blobstore 
context startup only saves a couple seconds or less, I suspect, as the only 
thing parsed there are locations.
  
> make more efficient use of ComputeServiceContext
> ------------------------------------------------
>
>                 Key: WHIRR-61
>                 URL: https://issues.apache.org/jira/browse/WHIRR-61
>             Project: Whirr
>          Issue Type: Improvement
>            Reporter: Adrian Cole
>
> The ComputeService object is thread-safe, and better off shared inside the 
> Service object.  Regardless, it must be closed in order to release 
> threadpools.

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