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Posted to hdfs-issues@hadoop.apache.org by "Konstantin Shvachko (JIRA)" <ji...@apache.org> on 2019/08/06 01:51:00 UTC
[jira] [Commented] (HDFS-14703) NameNode Fine-Grained Locking via
Metadata Partitioning
[ https://issues.apache.org/jira/browse/HDFS-14703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900526#comment-16900526 ]
Konstantin Shvachko commented on HDFS-14703:
--------------------------------------------
Attached the design document for review.
> NameNode Fine-Grained Locking via Metadata Partitioning
> -------------------------------------------------------
>
> Key: HDFS-14703
> URL: https://issues.apache.org/jira/browse/HDFS-14703
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs, namenode
> Reporter: Konstantin Shvachko
> Priority: Major
> Attachments: NameNode Fine-Grained Locking.pdf
>
>
> We target to enable fine-grained locking by splitting the in-memory namespace into multiple partitions each having a separate lock. Intended to improve performance of NameNode write operations.
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