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https://issues.apache.org/jira/browse/FLUME-933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arvind Prabhakar resolved FLUME-933.
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Resolution: Fixed
Fix Version/s: v1.1.0
Patch committed.
> Default[Source|Sink|Channel]Factory implementation should do reference
> counting for create/unregistering instances.
> -------------------------------------------------------------------------------------------------------------------
>
> Key: FLUME-933
> URL: https://issues.apache.org/jira/browse/FLUME-933
> Project: Flume
> Issue Type: Bug
> Reporter: Arvind Prabhakar
> Fix For: v1.1.0
>
>
> The current implementation of DefaultSourceFactory, DefaultSinkFactory and
> DefaultChannelFactory ensures that if a create() is called for the same name
> and type of object, it returns the previously created instance where
> available. However, on deregister it directly removes the created object from
> cache. This can lead to multiple instances of same name to exist within the
> VM which in turn can cause other problems.
> Instead if the factory implementation does reference counting, it will be
> able to ensure that the purge of an object happens only when the number of
> unregister calls matches the create calls.
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