[jira] [Closed] (KAFKA-550) Wildcarded consumption is single-threaded

["Joel Koshy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Koshy closed KAFKA-550.
----------------------------


Committed to 0.8 and trunk.
                
> Wildcarded consumption is single-threaded
> -----------------------------------------
>
>                 Key: KAFKA-550
>                 URL: https://issues.apache.org/jira/browse/KAFKA-550
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Joel Koshy
>            Assignee: Joel Koshy
>         Attachments: KAFKA-550-v1.patch, KAFKA-550-v2.patch
>
>
> It's surprising that we haven't noticed this before, but I was looking at a CPU usage profile on yourkit and It turns out that only one mirror maker thread is actually doing anything. Basically I suspect some bug in fetcher -> queue mapping. Only one queue seems to have any data. I'll look into this probably next week.

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