[jira] [Updated] (BOOKKEEPER-336) bookie readEntries is taking more time if the ensemble has failed bookie(s)

["Ivan Kelly (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BOOKKEEPER-336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ivan Kelly updated BOOKKEEPER-336:
----------------------------------

    Attachment: 0001-BOOKKEEPER-336-bookie-readEntries-is-taking-more-tim.patch
    
> bookie readEntries is taking more time if the ensemble has failed bookie(s)
> ---------------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-336
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-336
>             Project: Bookkeeper
>          Issue Type: Bug
>    Affects Versions: 4.1.0
>            Reporter: Brahma Reddy Battula
>            Assignee: Ivan Kelly
>             Fix For: 4.2.0
>
>         Attachments: 0001-BOOKKEEPER-336-bookie-readEntries-is-taking-more-tim.patch, 0001-BOOKKEEPER-336-bookie-readEntries-is-taking-more-tim.patch, 0002-BOOKKEEPER-336-bookie-readEntries-is-taking-more-tim.patch, 0002-BOOKKEEPER-336-bookie-readEntries-is-taking-more-tim.patch, 0002-BOOKKEEPER-336-bookie-readEntries-is-taking-more-tim.patch, BOOKKEEPER-336.1.patch, BOOKKEEPER-336.draft1.diff, BOOKKEEPER-336.patch
>
>
> Scenario:
> 1) Start three bookies. Create ledger with ensemblesize=3, quorumsize=2
> 2) Add 100 entries to this ledger
> 3) Make first bookie down and read the entries from 0-99
> Output: Each entry is going to fetch from the failed bookie and is waiting for the bookie connection timeout, only after failure going to next bookie.
> This is affecting the read entry performance.
> Impact: Namenode switching time will be affected by adding this failed bookie readTimeOut also.

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