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Posted to dev@twill.apache.org by "Albert Shau (JIRA)" <ji...@apache.org> on 2016/07/16 00:25:20 UTC

[jira] [Commented] (TWILL-177) ZKDiscoveryService should have a way to remove its connection watcher

    [ https://issues.apache.org/jira/browse/TWILL-177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15380357#comment-15380357 ] 

Albert Shau commented on TWILL-177:
-----------------------------------

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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