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Posted to dev@bookkeeper.apache.org by "Yixue (Andrew) Zhu (JIRA)" <ji...@apache.org> on 2012/11/20 18:28:58 UTC
[jira] [Created] (BOOKKEEPER-473) Improve write performance which
compete with read on disk I/O
Yixue (Andrew) Zhu created BOOKKEEPER-473:
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Summary: Improve write performance which compete with read on disk I/O
Key: BOOKKEEPER-473
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-473
Project: Bookkeeper
Issue Type: Bug
Components: bookkeeper-server
Affects Versions: 4.2.0, 4.3.0
Reporter: Yixue (Andrew) Zhu
BOOKKEEPER-432 introduced SkipList to sort entries before adding them to entry log file, to improve ledger read performance.
This task is to eliminate/reduce Index files, which contribute to sync write I/O spike (thousands of index files corresponding to active ledgers per bookie server).
The write I/O contend with disk read I/O.
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[jira] [Assigned] (BOOKKEEPER-473) Improve write performance which
compete with read on disk I/O
Posted by "Yixue (Andrew) Zhu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/BOOKKEEPER-473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yixue (Andrew) Zhu reassigned BOOKKEEPER-473:
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Assignee: Yixue (Andrew) Zhu
> Improve write performance which compete with read on disk I/O
> -------------------------------------------------------------
>
> Key: BOOKKEEPER-473
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-473
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Affects Versions: 4.2.0, 4.3.0
> Reporter: Yixue (Andrew) Zhu
> Assignee: Yixue (Andrew) Zhu
> Labels: patch
>
> BOOKKEEPER-432 introduced SkipList to sort entries before adding them to entry log file, to improve ledger read performance.
> This task is to eliminate/reduce Index files, which contribute to sync write I/O spike (thousands of index files corresponding to active ledgers per bookie server).
> The write I/O contend with disk read I/O.
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