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https://issues.apache.org/jira/browse/HADOOP-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12672238#action_12672238
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Luca Telloli commented on HADOOP-5189:
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hey Dhruba, following your suggestion I thought about having multiple logging
systems in parallel and the simplest solution I could think of is a vector of
EditLogs inside FSImage. How does it sound?
As I imagine it, this would require a small amount of code changes, would not
add too much overhead, would allow the user to specify multiple types of
logging at the same time if needed and easily fall back to a case with a single
logger. I don't see many issues for having it working without issues, apart
from some performance penalty due to the slower synchronization process. I
guess this could still be part of HADOOP-5188?
> Integration with BookKeeper logging system
> ------------------------------------------
>
> Key: HADOOP-5189
> URL: https://issues.apache.org/jira/browse/HADOOP-5189
> Project: Hadoop Core
> Issue Type: New Feature
> Affects Versions: 0.19.0
> Reporter: Luca Telloli
> Attachments: create.png, HADOOP-5189.patch
>
>
> BookKeeper is a system to reliably log streams of records
> (https://issues.apache.org/jira/browse/ZOOKEEPER-276). The NameNode is a
> natural target for such a system for being the metadata repository of the
> entire file system for HDFS.
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