[jira] [Updated] (KAFKA-2158) Close all fetchers in AbstractFetcherManager without blocking

["Ismael Juma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-2158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ismael Juma updated KAFKA-2158:
-------------------------------
    Resolution: Duplicate
        Status: Resolved  (was: Patch Available)

Duplicate of KAFKA-4319.

> Close all fetchers in AbstractFetcherManager without blocking
> -------------------------------------------------------------
>
>                 Key: KAFKA-2158
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2158
>             Project: Kafka
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 0.8.2.0
>            Reporter: Jiasheng Wang
>         Attachments: KAFKA-2158.patch
>
>
> def closeAllFetchers() {
>     mapLock synchronized {
>       for ( (_, fetcher) <- fetcherThreadMap) {
>         fetcher.shutdown()
>       }
>       fetcherThreadMap.clear()
>     }
>   }
> It is time consuming for closeAllFetchers() in AbstractFetcherManager.scala because each time a fetcher calls shutdown method it will block until awaitShutdown() returns. As a result it will slow down the restart of kafka service.



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