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From "Zhihong Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-2315) BookKeeper for write-ahead logging
Date Fri, 22 Jun 2012 08:49:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399220#comment-13399220
] 

Zhihong Ted Yu commented on HBASE-2315:
---------------------------------------

Here is the JIRA that tracks parallel hdfs writes:
HBASE-6116 Allow parallel HDFS writes for HLogs

HBASE-5699 would allow multiple WALs per region server. WAL interface abstraction appears
in the discussion there.

Feel free to propose WAL interface for this JIRA.
                
> BookKeeper for write-ahead logging
> ----------------------------------
>
>                 Key: HBASE-2315
>                 URL: https://issues.apache.org/jira/browse/HBASE-2315
>             Project: HBase
>          Issue Type: New Feature
>          Components: regionserver
>            Reporter: Flavio Junqueira
>         Attachments: HBASE-2315.patch, bookkeeperOverview.pdf, zookeeper-dev-bookkeeper.jar
>
>
> BookKeeper, a contrib of the ZooKeeper project, is a fault tolerant and high throughput
write-ahead logging service. This issue provides an implementation of write-ahead logging
for hbase using BookKeeper. Apart from expected throughput improvements, BookKeeper also has
stronger durability guarantees compared to the implementation currently used by hbase.

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