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https://issues.apache.org/jira/browse/HBASE-2315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400406#comment-13400406
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Flavio Junqueira commented on HBASE-2315:
-----------------------------------------
Hi Jonathan, A BK backend for logging can potentially deal with the issues
you're raising. The main issue is that it doesn't expose a file system
interface, and HBase currently seems to rely upon one. If we have an interface
that matches more naturally the BK api, then we will possibly be able to deal
with the issues you're raising without much effort.
I was actually trying to implement a BookKeeperFS class that extends
FileSystem, but it doesn't feel natural. I was wondering if we should try to
work on the interface first instead of hacking it in by implementing an
HLog.Reader and an HLog.Writer.
> 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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