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https://issues.apache.org/jira/browse/HBASE-2315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399212#comment-13399212
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Flavio Junqueira commented on HBASE-2315:
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Hi Ted, I don't fully understand what HBASE-5699 is proposing. It mixes
parallel writes and HDFS. In my perspective, we are able to perform efficient
parallel writes out of the box and we can benefit from an interface that
exposes enough information for us to separate the edits into different logs
(e.g., one per region). If the outcome of HBASE-5699 is a set of changes to the
interface that allow this to happen, then we could benefit from it. For a first
cut of this issue, I don't think we need parallel writes, though, so I would
say it is not dependent, but I'd be happy to hear a different opinion.
> 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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