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https://issues.apache.org/jira/browse/TWILL-177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15380357#comment-15380357
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Albert Shau commented on TWILL-177:
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AbstractTwillController will new a ZKDiscoveryService every time its created.
This is what's returned when a user calls TwillPreparer.start(), so any process
that starts twill applications will slowly leak memory.
> ZKDiscoveryService should have a way to remove its connection watcher
> ---------------------------------------------------------------------
>
> Key: TWILL-177
> URL: https://issues.apache.org/jira/browse/TWILL-177
> Project: Apache Twill
> Issue Type: Bug
> Components: discovery
> Reporter: Albert Shau
>
> The ZKDiscoveryService adds a connection watcher in its constructor, but has
> no way to remove it. As a result, if somebody is creating new instances, the
> number of watches will slowly grow.
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