Guillaume Nodet commented on FELIX-5383:

Fwiw, synchronous start is not a problem if there will be no wait.  For example 
aries-bueprint can be configured to start bundles synchronously, but will only 
do so as long as it will not wait for a dependency.  If it enters the grace 
period, it will resume asynchronously when the dependency is later satisfied.

> Support parallel bundle starting
> --------------------------------
>                 Key: FELIX-5383
>                 URL: https://issues.apache.org/jira/browse/FELIX-5383
>             Project: Felix
>          Issue Type: Improvement
>          Components: File Install
>    Affects Versions: fileinstall-3.5.4
>            Reporter: Matt Magoffin
>            Assignee: Guillaume Nodet
> I have an application that uses Felix File Install to start a set of bundles 
> that use Blueprint configuration extensively, but with the poll time disabled 
> ({{felix.fileinstall.poll = 0}}) because I only want the bundles started at 
> application startup time. Sometimes one bundle might have a Blueprint service 
> dependency provided by another bundle such that when started and that other 
> bundle has not been started yet causes a service timeout. The ordering File 
> Install uses to start bundles is indeterminate (a {{HashSet}} is passed to 
> {{startBundles(Collection<Bundle> bundles)}}) so I thought a good solution 
> would be to start bundles in parallel, so if one bundle gets stuck when 
> starting, waiting for a Blueprint service to become available, other bundles 
> can continue to be started under the assumption one of them will be providing 
> that service "soon".

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